]> Ontology of units of Measure (OM) Ontologie van Maateenheden (OM) 測定単位のオントロジー (OM) 2.0.55 http://www.ontology-of-units-of-measure.org/vocabularies/om-2/ 2024/04/18 The Ontology of units of Measure (OM) 2.0 models concepts and relations important to scientific research. It has a strong focus on units, quantities, measurements, and dimensions. 測定単位のオントロジー (Ontology of units of Measure; OM) は，科学技術にとって重要な概念及び関係をモデル化する。OMは，単位・量・測定・次元に特に焦点を当てている。 http://www.wurvoc.org/images/vocabularies/om-logo.jpg http://www.wurvoc.org/images/vocabularies/om-illustration.jpg Hajo Rijgersberg, Don Willems, Jan Top alternative label 標識の別名 longcomment 詳細な注釈 long comment has longcomment 詳細な注釈がある symbol 記号 has symbol 記号を持つ alternative symbol 別の記号 has alternative symbol 別の記号を持つ abbreviation 略記 has abbreviation 略記がある unofficial label 非公式な記号 has unofficial label 非公式な記号を持つ Used to specify labels that are used in e.g. every day speech but are not defined in any standard. unofficial abbreviation 非公式な略記 has unofficial abbreviation 非公式な略記がある Used to specify abbreviations that are used in e.g. every day speech but are not defined in any standard. quantity 量 A quantity is a representation of a quantifiable (standardised) aspect (such as length, mass, and time) of a phenomenon (e.g., a star, a molecule, or a food product). Quantities are classified according to similarity in their (implicit) metrological aspect, e.g. the length of my table and the length of my chair are both classified as length. 量とは，ある現象（例: 星・分子・食品）の定量化できる（標準化された）性質（例: 長さ・質量・時間）の表現である。量は（暗黙の）計量的類似性に従って分離される。例: 机の長さ及び椅子の長さは双方とも長さに分類される。 has phenomenon 現象がある has context 文脈を持つ has value 値を持つ commonly has unit 通常は単位を持つ commonly has unit of measure 通常は測定単位を持つ This property indicates a commonly-used unit. has aggregate function 集計関数を持つ function 関数 first 最初 last 最後 minimum 最小 maximum 最大 sum 合計 average 平均 count 回数 standard deviation 標準偏差 product 積 median 50th percentile 10th percentile 20th percentile 25th percentile 30th percentile 40th percentile 60th percentile 70th percentile th percentile 80th percentile 90th percentile has quantity 量を持つ unit 単位 unit of measure 測定単位 unit of measurement 測定の単位 A unit of measure is a definite magnitude of a quantity, defined and adopted by convention or by law. It is used as a standard for measurement of the same quantity, where any other value of the quantity can be expressed as a simple multiple of the unit. For example, length is a quantity; the metre is a unit of length that represents a definite predetermined length. When we say 10 metre (or 10 m), we actually mean 10 times the definite predetermined length called "metre". 測定単位とは，量の確定的な大きさであり，慣例又は法律によって定義し採用されている。同じ量の測定の標準として用いられ，他の如何なる量の値も当該単位の単純な倍数として表わせる。例えば，長さも量である; メートルは長さの単位であり，確定的な所定の長さを表している。10メートル（又は10 m）とは，「メートル」と呼ばれる確定的な所定の長さの10倍を，実際に意味している。 prefixed unit 補助単位 has unit 単位を持つ has prefix 補助単位を持つ unit multiple 単位倍量 has factor 因子を持つ singular unit 単数単位 compound unit 複合単位 unit multiplication 単位乗算 has term 1 has term 2 unit exponentiation has base has exponent unit division has numerator has denominator prefix A prefix is a name that precedes a basic unit of measure to indicate a decimal or binary multiple or fraction of the unit. Each prefix has a unique symbol that is prepended to the unit symbol. For example, an electric current of 0.000 000 001 ampere is written by using the SI-prefix nano as 1 nanoampere or 1 nA. measure A measure combines a number to a unit of measure. For example, "3 m" is a measure. has numerical value scale measurement scale schaal meetschaal interval scale ratio scale has off-set point A point is an element of an interval scale or a ratio scale, for example, 273.16 on the Kelvin scale indicates the triple point of water thermodynamic temperature. fixed point fixed zero point has point has scale dimension Dimensions are abstract properties of units and quantities neglecting their vectorial or tensorial character and all numerical factors including their sign. has dimension has SI length dimension exponent has SI mass dimension exponent has SI time dimension exponent has SI electric current dimension exponent has SI thermodynamic temperature dimension exponent has SI amount of substance dimension exponent has SI luminous intensity dimension exponent system of units In order to achieve a coherent, interdependent set of units of measure in the wide variety of units that exist, units are organised in systems of units. A system of units is based on a set of units chosen by convention to be the system’s base units, units that are considered to be mutually independent (i.e., can’t be expressed in terms of each other). has base quantity has base unit has derived quantity has derived unit application area An application area groups quantities and units of measure for application areas such as scientific disciplines (e.g., thermodynamics, mechanics). uses quantity uses unit LaTeX command typeset by LaTeX command OMLaTeX command that can be used to render this quantity or unit. LaTeX symbol has LaTeX symbol LaTeX formatted symbol OMLaTeX formatted symbol may include commands such as \unit and \E as defined in OMLaTeX. alternative LaTeX symbol has alternative LaTeX symbol alternative LaTeX formatted symbol An alternative OMLaTeX formatted symbol, which may include commands such as \unit and \E as defined in OMLaTeX. geometry geometrie length lengte 长度 Length is the amount of space between two geographical points along a curve. It is a base quantity in the International System of Units and other systems of units. Length is speed times time. The metre, a base unit of length in the International System of Units, is defined in terms of speed of light during a certain time interval. l L breadth breedte b depth diepte d distance afstand 距离 d height hoogte h thickness dikte d δ width breedte w radius straal 半径 radius r diameter diameter 直径 d circumference omtrek 圆周 C area oppervlakte 面积 oppervlak Area expresses the two-dimensional size of a defined part of a surface, typically a region bounded by a closed curve. It is a derived quantity in the International System of Units. Area is length squared. A S volume volume 体积 inhoud Volume is a measure of how much three-dimensional space any phenomenon occupies. It is a derived quantity in the International System of Units. Volume is length to the power 3. V v angle hoek 角度 plane angle Angle is the ratio between an arc and its radius. α β γ θ φ solid angle ruimtehoek 立体角 Solid angle is the ratio of the surface of a portion of a sphere enclosed by the conical surface that forms an angle to the square of the radius of the sphere. Ω ω angular size length fraction lengtefractie slope SI prefix yocto yocto y 0.000000000000000000000001 zepto zepto z 0.000000000000000000001 atto atto a 0.000000000000000001 femto femto f 0.000000000000001 pico pico p 0.000000000001 nano nano n 0.000000001 micro micro μ u 0.000001 milli milli m 0.001 centi centi c 0.01 deci deci d 0.1 deca deca deka da 10 hecto hecto h 100 kilo kilo k 1000 mega mega M 1000000 giga giga G 1000000000 tera tera T 1000000000000 peta peta P 1000000000000000 exa exa E 1000000000000000000 zetta zetta Z 1000000000000000000000 yotta yotta Y 1000000000000000000000000 metre meter 米 meter m path travelled by light in vacuum during a time interval of 1/299 792 458 of a second length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second The metre is a unit of length defined as the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. The metre is a unit of length defined as the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second. The metre is a base unit in the International System of Units. length unit yoctometre yoctometer The yoctometre is a unit of length defined as 1.0e-24 metre. ym zeptometre zeptometer The zeptometre is a unit of length defined as 1.0e-21 metre. zm attometre attometer The attometre is a unit of length defined as 1.0e-18 metre. am femtometre femtometer 1/(10^15)米 The femtometre is a unit of length defined as 1.0e-15 metre. fm picometre picometer 1/(10^12)米 The picometre is a unit of length defined as 1.0e-12 metre. pm nanometre nanometer The nanometre is a unit of length defined as 1.0e-9 metre. nm micrometre micrometer 微米 The micrometre is a unit of length defined as 1.0e-6 metre. μm millimetre millimeter 毫米 The millimetre is a unit of length defined as 1.0e-3 metre. mm centimetre centimeter The centimetre is a unit of length defined as 1.0e-2 metre. cm decimetre decimeter The decimetre is a unit of length defined as 1.0e-1 metre. dm decametre decameter The decametre is a unit of length defined as 1.0e1 metre. dam hectometre hectometer The hectometre is a unit of length defined as 1.0e2 metre. hm kilometre kilometer 公里 The kilometre is a unit of length defined as 1.0e3 metre. km megametre megameter 百万米 The megametre is a unit of length defined as 1.0e6 metre. Mm gigametre gigameter 10^9米 The gigametre is a unit of length defined as 1.0e9 metre. Gm terametre terameter 10^12米 The terametre is a unit of length defined as 1.0e12 metre. 10^9 km Tm petametre petameter 10^15米 The petametre is a unit of length defined as 1.0e15 metre. Pm exametre exameter 千兆兆米 The exametre is a unit of length defined as 1.0e18 metre. Em zettametre zettameter The zettametre is a unit of length defined as 1.0e21 metre. Zm yottametre yottameter 10^24米 The yottametre is a unit of length defined as 1.0e24 metre. Ym prefixed metre 1 1 angstrom ångström ångström angstrom The angstrom is a unit of length defined as 1.0e-10 metre. The unit is often used for wavelengths of electromagnetic radiation or to express the sizes of atoms and molecules. Å 0.00000000010 Birmingham gauge G GA chain The chain is a unit of length defined as 20.1168 metre. ch 20.1168 fathom (US survey) US survey fathom The US survey fathom is a unit of length defined as 1.828804 metre. 1.828804 fermi fermi The fermi is a unit of length defined as 1.0e-15 metre. 0.0000000000000010 foot (international) international foot 英尺（国际） The international foot is a unit of length defined as 3.048e-1 metre. ft 0.3048 foot (US survey) US survey foot The US survey foot is a unit of length defined as 3.048006e-1 metre. ft 0.3048006 French gauge Fr Fg FR F CH Ch furlong (international) international furlong The international furlong is a unit of length defined as 201.168 metre. 201.168 inch (international) 英寸（国际） international inch The international inch is a unit of length defined as 2.54e-2 metre. in 0.0254 micron micron The micron is a unit of length defined as 1.0e-6 metre. μ 0.0000010 mil (length) thou The mil (length) is a unit of length defined as 2.54e-5 metre. 0.0000254 mile (statute) statute mile The statute mile is a unit of length defined as 1.609344e3 metre. mi 1609.344 mile (US survey) US survey mile The US survey mile is a unit of length defined as 1.609347e3 metre. 1609.347 nautical mile (international) zeemijl (internationaal) 海里（国际） international nautical mile The international nautical mile is a unit of length defined as 1852 metre. nmi M NM nm 1852 rod (US) US rod perch pole The US rod is a unit of length defined as 5.029210 metre. rd 5.029210 yard (international) 码（国际） international yard The international yard is a unit of length defined as 9.144e-1 metre. yd 0.9144 square metre vierkante meter 平方米 Square metre is a unit of area defined as the area of a square whose sides measure exactly one metre. Square metre is a unit of area defined as the area of a square whose sides measure exactly one metre. Square metre is a derived unit in the International System of Units. m2 2 area unit square yoctometre vierkante yoctometer ym2 2 square zeptometre vierkante zeptometer zm2 2 square attometre vierkante attometer am2 2 square femtometre vierkante femtometer fm2 2 square picometre vierkante picometer pm2 2 square nanometre vierkante nanometer nm2 2 square micrometre vierkante micrometer μm2 2 square millimetre vierkante millimeter mm2 2 square centimetre vierkante centimeter cm2 2 square decimetre vierkante decimeter dm2 2 square decametre vierkante decameter dam2 2 square hectometre vierkante hectometer hm2 2 square kilometre vierkante kilometer 10^6 m2 km2 2 square megametre vierkante megameter Mm2 2 square gigametre vierkante gigameter Gm2 2 square terametre vierkante terameter Tm2 2 square petametre vierkante petameter Pm2 2 square exametre vierkante exameter Em2 2 square zettametre vierkante zettameter Zm2 2 square yottametre vierkante yottameter Ym2 2 square prefixed metre 1 2 1 are are The are is a unit of area defined as 100 square metre. a 100 centiare centiare The centiare is a unit of area defined as 1.0e-2 are. ca hectare hectare The hectare is a unit of area defined as 1.0e2 are. ha prefixed are 1 1 acre (international) 英亩（国际） international acre The international acre is a unit of area defined as 4.0468564224e3 square metre. ac 4046.8564224 acre (US survey) 英亩（美国调查） US survey acre The US survey acre is a unit of area defined as 4.046872609874252e3 square metre. ac 4046.872609874252 barn The barn is a unit of area defined as 1.0e-28 square metre. b 0.00000000000000000000000000010 circular mil The cicular mil is a unit of area defined as 5.067075e-10 square metre. 0.0000000005067075 square angstrom Å2 2 square inch (international) in2 2 square foot (international) ft2 2 square yard (international) yd2 2 square mile (statute) mi2 2 cubic metre kubieke meter Cubic metre is a unit of volume defined as the volume of a cube whose sides measure exactly one metre. Cubic metre is a unit of volume defined as the volume of a cube whose sides measure exactly one metre. Cubic metre is a derived unit in the International System of Units. m3 3 volume unit cubic yoctometre kubieke yoctometer ym3 3 cubic zeptometre kubieke zeptometer zm3 3 cubic attometre kubieke attometer am3 3 cubic femtometre kubieke femtometer fm3 3 cubic picometre kubieke picometer pm3 3 cubic nanometre kubieke nanometer nm3 3 cubic micrometre kubieke micrometer μm3 3 cubic millimetre kubieke millimeter mm3 3 cubic centimetre kubieke centimeter cm3 3 cubic decimetre kubieke decimeter dm3 3 cubic decametre kubieke decameter dam3 3 cubic hectometre kubieke hectometer hm3 3 cubic kilometre kubieke kilometer km3 3 cubic megametre kubieke megameter Mm3 3 cubic gigametre kubieke gigameter Gm3 3 cubic terametre kubieke terameter Tm3 3 cubic petametre kubieke petameter Pm3 3 cubic exametre kubieke exameter Em3 3 cubic zettametre kubieke zettameter Zm3 3 cubic yottametre kubieke yottameter Ym3 3 cubic prefixed metre 1 3 1 litre liter 升 liter The litre is a unit of volume defined as 1.0e-3 cubic metre. l L 0.0010 yoctolitre yoctoliter yl zeptolitre zeptoliter zl attolitre attoliter al femtolitre femtoliter fl picolitre picoliter pl nanolitre nanoliter nl microlitre microliter μl ul millilitre milliliter ml centilitre centiliter cl decilitre deciliter dl decalitre decaliter dal hectolitre hectoliter hl kilolitre kiloliter kl megalitre megaliter Ml gigalitre gigaliter Gl teralitre teraliter Tl petalitre petaliter Pl exalitre exaliter El zettalitre zettaliter Zl yottalitre yottaliter Yl 25 millilitre 25 milliliter 25 ml 25 prefixed litre 1 1 acre foot The acre foot is a unit of volume defined as 1.233489e3 cubic metre. 1233.489 barrel (US) US barrel The US barrel is a unit of volume defined as 1.589873e-1 cubic metre. bbl 0.1589873 bushel (US) US bushel The US bushel is a unit of volume defined as 3.523907e-2 cubic metre. bu 0.03523907 cord The cord is a unit of volume defined as 3.624556 cubic metre. 3.624556 cup (US customary) US customary cup The US customary cup is a unit of volume defined as 2.365882e-4 cubic metre. 0.0002365882 \cupUnit dry gallon (US) gallon (US dry) US dry gallon The US dry gallon is a unit of volume defined as 4.40488377086e-3 cubic metre. gal 0.00440488377086 dry pint (US) pint (US dry) US dry pint The US dry pint is a unit of volume defined as 5.506105e-4 cubic metre. dry pt 0.0005506105 dry quart (US) quart (US dry) US dry quart The US dry quart is a unit of volume defined as 1.101221e-3 cubic metre. dry qt 0.001101221 fluid ounce (imperial) ounce (imperial fluid) imperial fluid ounce The imperial fluid ounce is a unit of volume defined as 2.841306e-5 cubic metre. fl oz 0.00002841306 fluid ounce (US) ounce (US fluid) US fluid ounce The US fluid ounce is a unit of volume defined as 2.957353e-5 cubic metre. fl oz 0.00002957353 gallon (imperial) imperial gallon The imperial gallon is a unit of volume defined as 4.54609e-3 cubic metre. gal 0.00454609 gallon (US) US gallon The US gallon is a unit of volume defined as 3.785412e-3 cubic metre. gal 0.003785412 gill (imperial) imperial gill The imperial gill is a unit of volume defined as 1.420653e-4 cubic metre. gi 0.0001420653 gill (US) US gill The US gill is a unit of volume defined as 1.182941e-4 cubic metre. gi 0.0001182941 liquid pint (US) pint (US liquid) US liquid pint The US liquid pint is a unit of volume defined as 4.731765e-4 cubic metre. liq pt 0.0004731765 liquid quart (US) quart (US liquid) US liquid quart The US liquid quart is a unit of volume defined as 9.463529e-4 cubic metre. liq qt 0.0009463529 peck (US) US peck The US peck is a unit of volume defined as 8.809768e-3 cubic metre. pk 0.008809768 pint (imperial) imperial pint The pint is a unit of volume defined as 568.26125 millilitre. 568.26125 quart (imperial) imperial quart The imperial quart is a unit of volume defined as 1.1365 litre. 1.1365 stere The stere is a unit of volume defined as cubic metre. tablespoon (US) US tablespoon The US tablespoon is a unit of volume defined as 1.478676e-5 cubic metre. 0.00001478676 teaspoon (US) US teaspoon The US teaspoon is a unit of volume defined as 4.928922e-6 cubic metre. 0.000004928922 dessertspoon The desserspoon is a unit of volume defined as 2 teaspoon. 2 ton (register) register ton The register ton is a unit of volume defined as 100 cubic foot = 2.8316846592 cubic metre. cubic angstrom Å3 3 bar (food) reep bottle fles bowl schaaltje cup kopje dash scheutje deep bowl diep bord drop druppel fillet filet glass glas handful handje piece stuks pinch mespunt portion portie scoop bolletje serving spoon opscheplepel slice snee spread broodbelegging wedge punt wine glass wijnglas radian radiaal 弧度 The radian is a unit of angle defined as the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle. The radian is a unit of angle defined as the angle subtended at the center of a circle by an arc that is equal in length to the radius of the circle. The radian is a derived unit in the International System of Units. rad angle unit yoctoradian yoctoradiaal yrad zeptoradian zeptoradiaal zrad attoradian attoradiaal arad femtoradian femtoradiaal frad picoradian picoradiaal prad nanoradian nanoradiaal nrad microradian microradiaal μrad milliradian milliradiaal mrad centiradian centiradiaal crad deciradian deciradiaal drad prefixed radian 1 1 degree graad 度 The degree is a unit of angle defined as 1.745329e-2 radian. ° 0.01745329 gon grade The gon is a unit of angle defined as 1.570796e-2 radian. gon 0.01570796 microsecond (angle) microseconde (hoek) microsecond of arc microarcsecond microboogseconde The microsecond (angle) is a unit of length defined as 1.0e-6 second (angle). Used in astronomy (measurements of positions of stars, galaxies, etc.) to represent the error. μas mil (angle) The mil (angle) is a unit of angle defined as 9.817477e-4 radian. 0.0009817477 millisecond (angle) milliseconde (hoek) millisecond of arc milliarcsecond milliboogseconde The millisecond (angle) is a unit of length defined as 1.0e-3 second (angle). Used in astronomy (measurements of positions of stars, galaxies, etc.) to represent the error. mas minute (angle) minuut (hoek) 分钟（角） minute of arc arcminute arcminuut The minute (angle) is a unit of angle defined as 2.908882e-4 radian. ' 0.0002908882 revolution The revolution is a unit of angle defined as 6.283185 radian. r 6.283185 second (angle) seconde (hoek) 秒（角度） second of arc arcsecond boogseconde The second (angle) is a unit of angle defined as 4.848137e-6 radian. " 0.000004848137 steradian steradiaal 球面度 The steradian is a unit of solid angle defined as the solid angle subtended at the center of a sphere by a portion of the surface of the sphere that has an area equal to the square of the radius of the sphere. The steradian is a unit of solid angle defined as the solid angle subtended at the center of a sphere by a portion of the surface of the sphere that has an area equal to the square of the radius of the sphere. The steradian is a derived unit in the International System of Units. sr solid angle unit yoctosteradian yoctosteradiaal ysr zeptosteradian zeptosteradiaal zsr attosteradian attosteradiaal asr femtosteradian femtosteradiaal fsr picosteradian picosteradiaal psr nanosteradian nanosteradiaal nsr microsteradian microsteradiaal μsr millisteradian millisteradiaal msr centisteradian centisteradiaal csr decisteradian decisteradiaal dsr prefixed steradian 1 1 degree squared 2 second (angle) squared arcsecond squared arcsec2 2 metre per metre meter per meter m/m m m-1 m·m-1 millimetre per metre millimeter per meter mm/m mm m-1 mm·m-1 length dimension lengtedimensie L 1 0 0 0 0 0 0 area dimension oppervlaktedimensie 2 0 0 0 0 0 0 volume dimension volumedimensie 3 0 0 0 0 0 0 dimensionOne 1 0 0 0 0 0 0 0 centimetre-gram-second system of units centimeter-gram-seconde-systeem cgs CGS centimetre-gram-second electromagnetic system of units centimeter-gram-seconde electromagnetische systeem centimetre, gram, second electromagnetic system of units CGS electromagnetic system of units electromagnetic CGS system of units emu EMU centimetre-gram-second electrostatic system of units centimeter-gram-seconde electrostatische systeem CGS electrostatic system of units electrostatic CGS system of units esu ESU centimetre-gram-second-biot system of units centimeter-gram-seconde-biot-systeem cm-g-s-Bi centimetre-gram-second-franklin system of units centimeter-gram-seconde-franklin-systeem cm-g-s-Fr Gaussian system of units Gaussische eenhedenstelsel 高斯系统单位 Gaussian CGS system of units mixed CGS system of units symmetrised CGS system of units International System of Units Internationale Stelsel van Eenheden 国际单位制 SI metre-kilogram-second-ampere system of units meter-kilogram-seconde-ampère-systeem Giorgi system of units Giorgi-stelsel m-kg-s-A mechanics mechanica displacement verplaatsing d wavelength golflengte λ time tijd 时间 Time is a base quantity in the International System of Units and other systems of units. It is measured by numbers of repetitions of cyclical events. t date datum duration duur period periode T mass massa 质量 weight Mass is the amount of matter of a phenomenon. It is a base quantity in the International System of Units. Mass is force divided by acceleration. m atomic mass m_a quantity of dimension one number N nr no # ratio percentage number density n column number density number density density wavenumber golfgetal Wavenumber is the number of repeating units of a propagating wave (the number of times a wave has the same phase) per unit of space. σ angular displacement frequency frequentie 频率 freq Frequency is a measure of the number of occurrences of a repeating event per unit time. f ν acceleration versnelling acceleratie a gravitational acceleration valversnelling acceleration of free fall zwaarteveldsterkte gravitatieveldsterkte g density dichtheid 密度 mass density soortelijke massa concentration (w/v) Density is the concentration of matter. It is a derived quantity in the International System of Units. Density is mass divided by volume. ρ specific volume soortelijk volume specifiek volume concentration (v/w) Specific volume is volume per unit mass. v speed snelheid (scalair) 速度 Speed is the time rate of motion measured by the distance moved over in unit time. v u velocity snelheid (vector) Velocity is the rate of change of position. u v w average speed u drainage speed force kracht 力 Force is the extent to which an object with mass can be caused to accelerate. It is a derived quantity in the International System of Units. Force is mass times acceleration. F friction wrijving Friction is a force that resists the relative motion of solid surfaces, fluid layers, or material elements sliding against each other. thrust stuwkracht Thrust is a reaction force that is caused by an accelerated mass expelled by a system in one direction. weight gewicht Weight is a force that attracts a body towards another (reference) body. G W P pressure druk 压力 Pressure is the force applied to or distributed over a surface. It is a derived quantity in the International System of Units. Pressure is force divided by area. p P energy energie 能量 Energy can be defined as the ability to do work. It is a derived quantity in the International System of Units. E W enthalpy enthalpie 焓 Enthalpy is the sum of the internal energy of a system plus the product of the pressure-volume work done on the system. H kinetic energy kinetische energie 动能 bewegingsenergie Kinetic energy is energy due to motion. E_k T K potential energy potentiële energie 势能 Potential energy is energy due to position of one body with respect to another or to the relative parts of the same body. E_p V Φ U work arbeid 工作 Work is the energy when a force acts against resistance to produce motion in a body. W A torque koppel 扭矩 Torque is the effectiveness of a force to produce rotation about an axis, measured by the product of the force and the perpendicular distance from the line of action of the force to the axis. T moment of force moment Moment of force is the effectiveness of a force to produce rotation about an axis measured by the product of the force and the perpendicular distance from the line of action of the force to the axis. M power vermogen 功率 Power is the time rate at which work is done. It is a derived quantity in the International System of Units. Power is energy divided by time. P specific energy Specific energy is energy per unit mass. angular speed hoeksnelheid angular frequency hoekfrequentie ω Ω angular velocity ω angular acceleration hoekversnelling α dynamic viscosity dynamische viscositeit viscosity Viscosity is the definite resistance to change of form of many materials. μ η kinematic viscosity kinematische viscositeit viscosity Kinematic viscosity is the ratio of viscosity to density. ν power density energy density energiedichtheid Energy density is the amount of energy stored in a given system or region of space per unit volume. action actie angular momentum impulsmoment draaiimpuls hoekmoment draaimoment L J fluidity mass fraction massafractie concentration (w/w) w momentum impuls linear momentum Momentum is the product of mass and velocity of an object. p moment of inertia traagheidsmoment massatraagheidsmoment Moment of inertia is a measure of the effectiveness of mass in rotation. I J relative humidity relatieve luchtvochtigheid RH area fraction oppervlaktefractie coverage volumetric flow rate volume flow rate volume flow flow rate volume fraction volumefractie concentration (v/v) φ overrun mass flow Mass flow is the movement of substances at equal rates or as a single body. mass per energy impulse stoot Impulse is the integral of a force with respect to time. I area density oppervlaktedichtheid area density rate second seconde 秒 sec s 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom The second is a unit of time defined as the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom. The second is a unit of time defined as the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom. The second is a base unit in the International System of Units. time unit yoctosecond yoctoseconde ys zeptosecond zeptoseconde zs attosecond attoseconde as femtosecond femtoseconde fs picosecond picoseconde ps nanosecond nanoseconde ns microsecond microseconde μs millisecond milliseconde ms centisecond centiseconde cs decisecond deciseconde ds decasecond decaseconde das hectosecond hectoseconde hs kilosecond kiloseconde ks megasecond megaseconde Ms gigasecond gigaseconde Gs terasecond teraseconde Ts petasecond petaseconde Ps exasecond exaseconde Es zettasecond zettaseconde Zs yottasecond yottaseconde Ys prefixed second (time) 1 1 day dag 天 The day is a unit of time defined as 86400 second. d \dayUnit 86400 hour uur 小时 The hour is a unit of time defined as 3600 second. h u 3600 minute minuut 分钟 The minute (time) is a unit of time defined as 60 second. min 60 month maand 月 The month is a unit of time. \monthUnit shake The shake is a unit of time defined as 1.0e-8 second. 0.000000010 week week The week is a unit of time defined as 6.04800e5 second. 604800 year jaar The year is a unit of time defined as 31556952 second. \yearUnit a y yr 31556952 gram gram 克 The gram is a unit of mass defined as 1.0e-3 kilogram. g 0.0010 mass unit yoctogram yoctogram The yoctogram is a unit of mass defined as 1.0e-24 gram. yg zeptogram zeptogram The zeptgram is a unit of mass defined as 1.0e-21 gram. zg attogram attogram The attogram is a unit of mass defined as 1.0e-18 gram. ag femtogram femtogram The femtogram is a unit of mass defined as 1.0e-15 gram. fg picogram picogram The picogram is a unit of mass defined as 1.0e-12 gram. pg nanogram nanogram 纳克 The nanogram is a unit of mass defined as 1.0e-9 gram. ng microgram microgram 微克 The microgram is a unit of mass defined as 1.0e-6 gram. μg mcg ug milligram milligram 毫克 The milligram is a unit of mass defined as 1.0e-3 gram. mg centigram centigram 百分之一克 The centigram is a unit of mass defined as 1.0e-2 gram. cg decigram decigram 十分之一克 The decigram is a unit of mass defined as 1.0e-1 gram. dg decagram decagram The decagram is a unit of mass defined as 1.0e1 gram. dag hectogram hectogram 100 gram The hectogram is a unit of mass defined as 1.0e2 gram. hg kilogram kilogram 公斤 kg international prototype of the kilogram mass of the international prototype of the kilogram The kilogram is a unit of mass defined as the mass of the international prototype of the kilogram. The kilogram is a unit of mass defined as the mass of the international prototype of the kilogram. The kilogram is a base unit in the International System of Units. megagram megagram The megagram is a unit of mass defined as 1.0e6 gram. Mg gigagram gigagram The gigagram is a unit of mass defined as 1.0e9 gram. Gg teragram teragram 10^12克 The teragram is a unit of mass defined as 1.0e12 gram. Tg petagram petagram 10^15克 The petagram is a unit of mass defined as 1.0e15 gram. Pg exagram exagram 千兆兆克 The exagram is a unit of mass defined as 1.0e18 gram. Eg zettagram zettagram 10^21克 The zettagram is a unit of mass defined as 1.0e21 gram. Zg yottagram yottagram The yottagram is a unit of mass defined as 1.0e24 gram. YG prefixed gram 1 1 tonne ton 公吨 metric ton The tonne is a unit of mass defined as 1000 kilogram. t 1000 kilotonne kiloton kt megatonne megaton Mt prefixed tonne 1 1 unified atomic mass unit The unified atomic mass unit is a unit of mass defined as 1.660538782(83)e-27 kilogram. u nanounified atomic mass unit nu prefixed unified atomic mass unit 1 1 carat (mass) karaat (massa) The carat (mass) is a unit of mass defined as 2.0e-4 kilogram. 0.00020 grain The grain is a unit of mass defined as 6.479891e-5 kilogram. gr 0.00006479891 hundredweight (British) British hundredweight The British hundredweight is a unit of mass defined as 5.080235e1 kilogram. 50.80235 hundredweight (US) US hundredweight The US hundredweight is a unit of mass defined as 4.535924e1 kilogram. 45.35924 International Unit 国际单位 IU milligram RAE ounce (apothecaries') apothecaries' ounce troy ounce ounce (troy) The apothecaries' ounce is a unit of mass defined as 3.110348e-2 kilogram. oz (ap.) oz (apoth) 0.03110348 ounce (avoirdupois) avoirdupois ounce The avoirdupois ounce is a unit of mass defined as 2.834952e-2 kilogram. oz oz (av.) oz avdp 0.02834952 pennyweight (Troy) Troy pennyweight The Troy pennyweight is a unit of mass defined as 1.555174e-3 kilogram. dwt 0.001555174 pound (apthecaries') apothecaries' pound troy pound pound (troy) The apothecaries' pound is a unit of mass defined as 3.732417e-1 kilogram. lb 0.3732417 pound (avoirdupois) avoirdupois pound The avoirdupois pound is a unit of mass defined as 4.535924e-1 kilogram. lb 0.45359237 slug 金属块 The slug is a unit of mass defined as 1.459390e1 kilogram. slug 14.59390 ton (short assay) short assay ton The short assay ton is a unit of mass defined as 2.916667e-2 kilogram. 0.02916667 ton (long) long ton The long ton is a unit of mass defined as 1.016047e3 kilogram. 1016.047 ton (short) short ton The short ton is a unit of mass defined as 9.071847e2 kilogram. 907.1847 one unit one Unit one is a unit of dimension one. 1 quantity of dimension one unit number unit ratio unit percentage unit mass fraction unit area fraction unit volume fraction unit relative humidity unit percent procent 百分 The percent is a unit of dimension one defined as 1/100. % \% 0.01 parts per million Parts per million is a unit of dimension one defined as 1/1 000 000. ppm 0.000001 half dozen Half dozen is a unit of dimension one defined as 6. 6 dozen Dozen is a unit of dimension one defined as 12. 12 hundred count Hundred count is a unit of dimension one defined as 100. 100 gross Gross is a unit of dimension one defined as 144. 144 thousand piece Thousand is a unit of dimension one defined as 1000. 1000 reciprocal second omgekeerde seconde s-1 -1 frequency unit hertz hertz 赫兹 The hertz is a unit of frequency defined as 1 divided by second. The hertz is a unit of frequency defined as 1 divided by second. The hertz is a derived unit in the International System of Units. Hz yoctohertz yoctohertz The yoctohertz is a unit of frequency defined as 1.0e-24 hertz. yHz zeptohertz zeptohertz The zepthertz is a unit of frequency defined as 1.0e-21 hertz. zHz attohertz attohertz The attohertz is a unit of frequency defined as 1.0e-18 hertz. aHz femtohertz femtohertz The femtohertz is a unit of frequency defined as 1.0e-15 hertz. fHz picohertz picohertz The picohertz is a unit of frequency defined as 1.0e-12 hertz. pHz nanohertz nanohertz The nanohertz is a unit of frequency defined as 1.0e-9 hertz. nHz microhertz microhertz The microhertz is a unit of frequency defined as 1.0e-6 hertz. μHz millihertz millihertz The millihertz is a unit of frequency defined as 1.0e-3 hertz. mHz centihertz centihertz The centihertz is a unit of frequency defined as 1.0e-2 hertz. cHz decihertz decihertz The decihertz is a unit of frequency defined as 1.0e-1 hertz. dHz decahertz decahertz The decahertz is a unit of frequency defined as 1.0e1 hertz. daHz hectohertz hectohertz The hectohertz is a unit of frequency defined as 1.0e2 hertz. hHz kilohertz kilohertz The kilohertz is a unit of frequency defined as 1.0e3 hertz. kHz megahertz megahertz The megahertz is a unit of frequency defined as 1.0e6 hertz. MHz gigahertz gigahertz The gigahertz is a unit of frequency defined as 1.0e9 hertz. GHz terahertz terahertz The terahertz is a unit of frequency defined as 1.0e12 hertz. THz petahertz petahertz The petahertz is a unit of frequency defined as 1.0e15 hertz. PHz exahertz exahertz The exahertz is a unit of frequency defined as 1.0e18 hertz. EHz zettahertz zettahertz The zettahertz is a unit of frequency defined as 1.0e21 hertz. ZHz yottahertz yottahertz The yottahertz is a unit of frequency defined as 1.0e24 hertz. YHz prefixed hertz 1 1 reciprocal minute omgekeerde minuut min-1 -1 reciprocal hour omgekeerd uur h-1 -1 reciprocal day omgekeerde dag d-1 -1 reciprocal year omgekeerd jaar a-1 -1 reciprocal cubic metre omgekeerde kubieke meter m-3 -3 number density unit reciprocal cubic centimetre omgekeerde kubieke centimeter cm-3 -3 reciprocal litre omgekeerde liter l-1 -1 reciprocal metre omgekeerde meter Reciprocal metre is a unit of wavenumber defined as 1 divided by metre. Reciprocal metre is a unit of wavenumber defined as 1 divided by metre. Reciprocal metre is a derived unit in the International System of Units. m-1 -1 wave number unit kayser kayser rydberg rydberg The kayser is a unit of wavenumber defined as 100 reciprocal metre. 100 reciprocal angstrom Å-1 -1 metre per metre meter per meter m/m m m-1 m·m-1 metre per second squared meter per seconde kwadraat Metre per second squared is a unit of acceleration defined as metre divided by second squared. Metre per second squared is a unit of acceleration defined as metre divided by second squared. Metre per second squared is a derived unit in the International System of Units. m/s2 m s-2 m·s-2 acceleration unit yoctometre per second squared yoctometer per seconde kwadraat Yoctometre per second squared is a unit of acceleration defined as yoctometre divided by second squared. ym/s2 ym s-2 ym·s-2 zeptometre per second squared zeptometer per seconde kwadraat Zeptometre per second squared is a unit of acceleration defined as zeptometre divided by second squared. zm/s2 zm s-2 zm·s-2 attometre per second squared attometer per seconde kwadraat Attometre per second squared is a unit of acceleration defined as attometre divided by second squared. am/s2 am s-2 am·s-2 femtometre per second squared femtometer per seconde kwadraat Femtometre per second squared is a unit of acceleration defined as femtometre divided by second squared. fm/s2 fm s-2 fm·s-2 picometre per second squared picometer per seconde kwadraat Picometre per second squared is a unit of acceleration defined as picometre divided by second squared. pm/s2 pm s-2 pm·s-2 nanometre per second squared nanometer per seconde kwadraat Nanometre per second squared is a unit of acceleration defined as nanometre divided by second squared. nm/s2 nm s-2 nm·s-2 micrometre per second squared micrometer per seconde kwadraat Micrometre per second squared is a unit of acceleration defined as micrometre divided by second squared. μm/s2 μm s-2 μm·s-2 millimetre per second squared millimeter per seconde kwadraat Millimetre per second squared is a unit of acceleration defined as millimetre divided by second squared. mm/s2 mm s-2 mm·s-2 centimetre per second squared centimeter per seconde kwadraat Centimetre per second squared is a unit of acceleration defined as centimetre divided by second squared. cm/s2 cm s-2 cm·s-2 decimetre per second squared decimeter per seconde kwadraat Decimetre per second squared is a unit of acceleration defined as decimetre divided by second squared. dm/s2 dm s-2 dm·s-2 decametre per second squared decameter per seconde kwadraat Decametre per second squared is a unit of acceleration defined as decametre divided by second squared. dam/s2 dam s-2 dam·s-2 hectometre per second squared hectometer per seconde kwadraat Hectometre per second squared is a unit of acceleration defined as hectometre divided by second squared. hm/s2 hm s-2 hm·s-2 kilometre per second squared kilometer per seconde kwadraat Kilometre per second squared is a unit of acceleration defined as kilometre divided by second squared. km/s2 km s-2 km·s-2 megametre per second squared megameter per seconde kwadraat Megametre per second squared is a unit of acceleration defined as megametre divided by second squared. Mm/s2 Mm s-2 Mm·s-2 gigametre per second squared gigameter per seconde kwadraat Gigametre per second squared is a unit of acceleration defined as gigametre divided by second squared. Gm/s2 Gm s-2 Gm·s-2 terametre per second squared terameter per seconde kwadraat Terametre per second squared is a unit of acceleration defined as terametre divided by second squared. Tm/s2 Tm s-2 Tm·s-2 petametre per second squared petameter per seconde kwadraat Petametre per second squared is a unit of acceleration defined as petametre divided by second squared. Pm/s2 Pm s-2 Pm·s-2 exametre per second squared exameter per seconde kwadraat Exametre per second squared is a unit of acceleration defined as exametre divided by second squared. Em/s2 Em s-2 Em·s-2 zettametre per second squared zettameter per seconde kwadraat Zettametre per second squared is a unit of acceleration defined as zettametre divided by second squared. Zm/s2 Zm s-2 Zm·s-2 yottametre per second squared yottameter per seconde kwadraat Yottametre per second squared is a unit of acceleration defined as yottametre divided by second squared. Ym/s2 Ym s-2 Ym·s-2 metre per yoctosecond squared meter per yoctoseconde kwadraat Metre per yoctosecond squared is a unit of acceleration defined as metre divided by yoctosecond squared. m/ys2 m ys-2 m·ys-2 metre per zeptosecond squared meter per zeptoseconde kwadraat Metre per zeptosecond squared is a unit of acceleration defined as metre divided by zeptosecond squared. m/zs2 m zs-2 m·zs-2 metre per attosecond squared meter per attoseconde kwadraat Metre per attosecond squared is a unit of acceleration defined as metre divided by attosecond squared. m/as2 m as-2 m·as-2 metre per femtosecond squared meter per femtoseconde kwadraat Metre per femtosecond squared is a unit of acceleration defined as metre divided by femtosecond squared. m/fs2 m fs-2 m·fs-2 metre per picosecond squared meter per picoseconde kwadraat Metre per picosecond squared is a unit of acceleration defined as metre divided by picosecond squared. m/ps2 m ps-2 m·ps-2 metre per nanosecond squared meter per nanoseconde kwadraat Metre per nanosecond squared is a unit of acceleration defined as metre divided by nanosecond squared. m/ns2 m ns-2 m·ns-2 metre per microsecond squared meter per microseconde kwadraat Metre per microsecond squared is a unit of acceleration defined as metre divided by microsecond squared. m/μs2 m μs-2 m·μs-2 metre per millisecond squared meter per milliseconde kwadraat Metre per millisecond squared is a unit of acceleration defined as metre divided by millisecond squared. m/ms2 m ms-2 m·ms-2 metre per centisecond squared meter per centiseconde kwadraat Metre per centisecond squared is a unit of acceleration defined as metre divided by centisecond squared. m/cs2 m cs-2 m·cs-2 metre per decisecond squared meter per deciseconde kwadraat Metre per decisecond squared is a unit of acceleration defined as metre divided by decisecond squared. m/ds2 m ds-2 m·ds-2 metre per decasecond squared meter per decaseconde kwadraat Metre per decasecond squared is a unit of acceleration defined as metre divided by decasecond squared. m/das2 m das-2 m·das-2 metre per hectosecond squared meter per hectoseconde kwadraat Metre per hectosecond squared is a unit of acceleration defined as metre divided by hectosecond squared. m/hs2 m hs-2 m·hs-2 metre per kilosecond squared meter per kiloseconde kwadraat Metre per kilosecond squared is a unit of acceleration defined as metre divided by kilosecond squared. m/ks2 m ks-2 m·ks-2 metre per megasecond squared meter per megaseconde kwadraat Metre per megasecond squared is a unit of acceleration defined as metre divided by megasecond squared. m/Ms2 m Ms-2 m·Ms-2 metre per gigasecond squared meter per gigaseconde kwadraat Metre per gigasecond squared is a unit of acceleration defined as metre divided by gigasecond squared. m/Gs2 m Gs-2 m·Gs-2 metre per terasecond squared meter per teraseconde kwadraat Metre per terasecond squared is a unit of acceleration defined as metre divided by terasecond squared. m/Ts2 m Ts-2 m·Ts-2 metre per petasecond squared meter per petaseconde kwadraat Metre per petasecond squared is a unit of acceleration defined as metre divided by petasecond squared. m/Ps2 m Ps-2 m·Ps-2 metre per exasecond squared meter per exaseconde kwadraat Metre per exasecond squared is a unit of acceleration defined as metre divided by exasecond squared. m/Es2 m Es-2 m·Es-2 metre per zettasecond squared meter per zettaseconde kwadraat Metre per zettasecond squared is a unit of acceleration defined as metre divided by zettasecond squared. m/Zs2 m Zs-2 m·Zs-2 metre per yottasecond squared meter per yottaseconde kwadraat Metre per yottasecond squared is a unit of acceleration defined as metre divided by yottasecond squared. m/Ys2 m Ys-2 m·Ys-2 prefixed metre per second (time) squared 1 1 metre per prefixed second (time) squared 1 1 prefixed metre per prefixed secon (time) squared 1 1 gal gal galileo galileo The gal is a unit of acceleration defined as centimetre per second (time) squared. Gal kilogram per cubic metre kilogram per kubieke meter Kilogram per cubic metre is a unit of density defined as kilogram divided by cubic metre. Kilogram per cubic metre is a unit of density defined as kilogram divided by cubic metre. Kilogram per cubic metre is a derived unit in the International System of Units. kg/m3 kg m-3 kg·m-3 density unit gram per cubic metre gram per kubieke meter Gram per cubic metre is a unit of density defined as gram divided by cubic metre. Gram per cubic metre is a unit of density defined as gram divided by cubic metre. Gram per cubic metre is a derived unit in the International System of Units. g/m3 g m-3 g·m-3 milligram per cubic metre milligram per kubieke meter Milligram per cubic metre is a unit of density defined as milligram divided by cubic metre. Milligram per cubic metre is a unit of density defined as milligram divided by cubic metre. Milligram per cubic metre is a derived unit in the International System of Units. mg/m3 mg m-3 mg·m-3 gram per cubic centimetre gram per kubieke centimeter Gram per cubic centimetre is a unit of density defined as gram divided by cubic centimetre. Gram per cubic centimetre is a unit of density defined as gram divided by cubic centimetre. Gram per cubic centimetre is a derived unit in the International System of Units. g/cm3 g cm-3 g·cm-3 microgram per cubic centimetre microgram per kubieke centimeter Microram per cubic centimetre is a unit of density defined as microgram divided by cubic centimetre. Microgram per cubic centimetre is a unit of density defined as microgram divided by cubic centimetre. Microgram per cubic centimetre is a derived unit in the International System of Units. μg/cm3 μg cm-3 μg·cm-3 kilogram per cubic decimetre kilogram per kubieke decimeter Kilogram per cubic decimetre is a unit of density defined as kilogram divided by cubic decimetre. Kilogram per cubic decimetre is a unit of density defined as kilogram divided by cubic decimetre. Kilogram per cubic decimetre is a derived unit in the International System of Units. kg/dm3 kg dm-3 kg·dm-3 unified atomic mass unit per cubic angstrom u/Å3 u Å-3 u·Å-3 gram per litre gram per liter Gram per litre is a unit of density defined as gram divided by litre. Gram per litre is a unit of density defined as gram divided by litre. Gram per litre is a derived unit in the International System of Units. g/l g l-1 g·l-1 yoctogram per litre yoctogram per liter Yoctogram per litre is a unit of density defined as yoctogram divided by litre. yg/l yg l-1 yg·l-1 zeptogram per litre zeptogram per liter Zeptogram per litre is a unit of density defined as zeptogram divided by litre. zg/l zg l-1 zg·l-1 attogram per litre attogram per liter Attogram per litre is a unit of density defined as attogram divided by litre. ag/l ag l-1 ag·l-1 femtogram per litre femtogram per liter Femtogram per litre is a unit of density defined as femtogram divided by litre. fg/l fm s-1 fm·s-1 picogram per litre picogram per liter Picogram per litre is a unit of density defined as picogram divided by litre. pg/l pg l-1 pg·l-1 nanogram per litre nanogram per liter Nanogram per litre is a unit of density defined as nanogram divided by litre. ng/l ng l-1 ng·l-1 microgram per litre microgram per liter Microgram per litre is a unit of density defined as microgram divided by litre. μg/l μg l-1 μg·l-1 milligram per litre milligram per liter Milligram per litre is a unit of density defined as milligram divided by litre. mg/l mg l-1 mg·l-1 centigram per litre centigram per liter Centigram per litre is a unit of density defined as centigram divided by litre. cg/l cg l-1 cg·l-1 decigram per litre decigram per liter Decigram per litre is a unit of density defined as decigram divided by litre. dg/l dg l-1 dg·l-1 decagram per litre decagram per liter Decagram per litre is a unit of density defined as decagram divided by litre. dag/l dag l-1 dag·l-1 hectogram per litre hectogram per liter Hectogram per litre is a unit of density defined as hectogram divided by litre. hg/l hg l-1 hg·l-1 kilogram per litre kilogram per liter Kilogram per litre is a unit of density defined as kilogram divided by litre. kg/l kg l-1 kg·l-1 megagram per litre megagram per liter Megagram per litre is a unit of density defined as megagram divided by litre. Mg/l Mg l-1 Mg·l-1 gigagram per litre gigagram per liter Gigagram per litre is a unit of density defined as gigagram divided by litre. Gg/l Gg l-1 Gg·l-1 teragram per litre teragram per liter Teragram per litre is a unit of density defined as teragram divided by litre. Tg/l Tg l-1 Tg·l-1 petagram per litre petagram per liter Petagram per litre is a unit of density defined as petagram divided by litre. Pg/l Pg l-1 Pg·l-1 exagram per litre exagram per liter Exagram per litre is a unit of density defined as exagram divided by litre. Eg/l Eg l-1 Eg·l-1 zettagram per litre zettagram per liter Zettagram per litre is a unit of density defined as zettagram divided by litre. Zg/l Zg l-1 Zg·l-1 yottagram per litre yottagram per liter Yottagram per litre is a unit of density defined as yottagram divided by litre. Yg/l Yg l-1 Yg·l-1 gram per yoctolitre gram per yoctoliter Gram per yoctolitre is a unit of density defined as gram divided by yoctolitre. g/yl g yl-1 g·yl-1 gram per zeptolitre gram per zeptoliter Gram per zeptolitre is a unit of density defined as gram divided by zeptolitre. g/zl g zl-1 g·zl-1 gram per attolitre gram per attoliter Gram per attolitre is a unit of density defined as gram divided by attolitre. g/al g al-1 g·al-1 gram per femtolitre gram per femtoliter Gram per femtolitre is a unit of density defined as gram divided by femtolitre. g/fl g fl-1 g·fl-1 gram per picolitre gram per picoliter Gram per picolitre is a unit of density defined as gram divided by picolitre. g/pl g pl-1 g·pl-1 gram per nanolitre gram per nanoliter Gram per nanolitre is a unit of density defined as gram divided by nanolitre. g/nl g nl-1 g·nl-1 gram per microlitre gram per microliter Gram per microlitre is a unit of density defined as gram divided by microlitre. g/μl g μl-1 g·μl-1 gram per millilitre gram per milliliter Gram per millilitre is a unit of density defined as gram divided by millilitre. g/ml g ml-1 g·ml-1 gram per centilitre gram per centiliter Gram per centilitre is a unit of density defined as gram divided by centilitre. g/cl g cl-1 g·cl-1 gram per decilitre gram per deciliter Gram per decilitre is a unit of density defined as gram divided by decilitre. g/dl g dl-1 g·dl-1 gram per decalitre gram per decaliter Gram per decalitre is a unit of density defined as gram divided by decalitre. g/dal g dal-1 g·dal-1 gram per hectolitre gram per hectoliter Gram per hectolitre is a unit of density defined as gram divided by hectolitre. g/hl g hl-1 g·hl-1 gram per kilolitre gram per kiloliter Gram per kilolitre is a unit of density defined as gram divided by kilolitre. g/kl g kl-1 g·kl-1 gram per megalitre gram per megaliter Gram per megalitre is a unit of density defined as gram divided by megalitre. g/Ml g Ml-1 g·Ml-1 gram per gigalitre gram per gigaliter Gram per gigalitre is a unit of density defined as gram divided by gigalitre. g/Gl g Gl-1 g·Gl-1 gram per teralitre gram per teraliter Gram per teralitre is a unit of density defined as gram divided by teralitre. g/Tl g Tl-1 g·Tl-1 gram per petalitre gram per petaliter Gram per petalitre is a unit of density defined as gram divided by petalitre. g/Pl g Pl-1 g·Pl-1 gram per exalitre gram per exaliter Gram per exalitre is a unit of density defined as gram divided by exalitre. g/El g El-1 g·El-1 gram per zettalitre gram per zettaliter Gram per zettalitre is a unit of density defined as gram divided by zettalitre. g/Zl g Zl-1 g·Zl-1 gram per yottalitre gram per yottaliter Gram per yottalitre is a unit of density defined as gram divided by yottalitre. g/Yl g Yl-1 g·Yl-1 prefixed gram per litre 1 1 gram per prefixed litre 1 1 prefixed gram per prefixed litre 1 1 cubic metre per kilogram kubieke meter per kilogram Cubic metre per kilogram is a unit of specific volume defined as cubic metre divided by kilogram. Cubic metre per kilogram is a unit of specific volume defined as cubic metre divided by kilogram. Cubic metre per kilogram is a derived unit in the International System of Units. m3/kg m3 kg-1 m3·kg-1 specific volume unit litre per kilogram liter per kilogram Litre per kilogram is a unit of specific volume defined as litre divided by kilogram. Litre per kilogram is a unit of specific volume defined as litre divided by kilogram. Litre per kilogram is a derived unit in the International System of Units. l/kg l kg-1 l·kg-1 metre per second meter per seconde Metre per second is a unit of speed defined as metre divided by second. Metre per second is a unit of speed defined as metre divided by second. Metre per second is a derived unit in the International System of Units. m/s m s-1 m·s-1 mps speed unit yoctometre per second yoctometer per seconde Yoctometre per second is a unit of speed defined as yoctometre divided by second. ym/s ym s-1 ym·s-1 zeptometre per second zeptometer per seconde Zeptometre per second is a unit of speed defined as zeptometre divided by second. zm/s zm s-1 zm·s-1 attometre per second attometer per seconde Attometre per second is a unit of speed defined as attometre divided by second. am/s am s-1 am·s-1 femtometre per second femtometer per seconde Femtometre per second is a unit of speed defined as femtometre divided by second. fm/s fm s-1 fm·s-1 picometre per second picometer per seconde Picometre per second is a unit of speed defined as picometre divided by second. pm/s pm·s-1 pm s-1 nanometre per second nanometer per seconde Nanometre per second is a unit of speed defined as nanometre divided by second. nm/s nm s-1 nm·s-1 micrometre per second micrometer per seconde Micrometre per second is a unit of speed defined as micrometre divided by second. μm/s μm·s-1 μm s-1 millimetre per second millimeter per seconde Millimetre per second is a unit of speed defined as millimetre divided by second. mm/s mm s-1 mm·s-1 centimetre per second centimeter per seconde Centimetre per second is a unit of speed defined as centimetre divided by second. cm/s cm s-1 cm·s-1 decimetre per second decimeter per seconde Decimetre per second is a unit of speed defined as decimetre divided by second. dm/s dm s-1 dm·s-1 decametre per second decameter per seconde Decametre per second is a unit of speed defined as decametre divided by second. dam/s dam s-1 dam·s-1 hectometre per second hectometer per seconde Hectometre per second is a unit of speed defined as hectometre divided by second. hm/s hm s-1 hm·s-1 kilometre per second kilometer per seconde Kilometre per second is a unit of speed defined as kilometre divided by second. km/s km s-1 km·s-1 megametre per second megameter per seconde Megametre per second is a unit of speed defined as megametre divided by second. Mm/s Mm s-1 Mm·s-1 gigametre per second gigameter per seconde Gigametre per second is a unit of speed defined as gigametre divided by second. Gm/s Gm s-1 Gm·s-1 terametre per second terameter per seconde Terametre per second is a unit of speed defined as terametre divided by second. Tm/s Tm s-1 Tm·s-1 petametre per second petameter per seconde Petametre per second is a unit of speed defined as petametre divided by second. Pm/s Pm s-1 Pm·s-1 exametre per second exameter per seconde Exametre per second is a unit of speed defined as exametre divided by second. Em/s Em s-1 Em·s-1 zettametre per second zettameter per seconde Zettametre per second is a unit of speed defined as zettametre divided by second. Zm/s Zm s-1 Zm·s-1 yottametre per second yottameter per seconde Yottametre per second is a unit of speed defined as yottametre divided by second. Ym/s Ym s-1 Ym·s-1 metre per yoctosecond meter per yoctoseconde Metre per yoctosecond is a unit of speed defined as metre divided by yoctosecond. m/ys m ys-1 m·ys-1 metre per zeptosecond meter per zeptoseconde Metre per zeptosecond is a unit of speed defined as metre divided by zeptosecond. m/zs m zs-1 m·zs-1 metre per attosecond meter per attoseconde Metre per attosecond is a unit of speed defined as metre divided by attosecond. m/as m as-1 m·as-1 metre per femtosecond meter per femtoseconde Metre per femtosecond is a unit of speed defined as metre divided by femtosecond. m/fs m fs-1 m·fs-1 metre per picosecond meter per picoseconde Metre per picosecond is a unit of speed defined as metre divided by picosecond. m/ps m ps-1 m·ps-1 metre per nanosecond meter per nanoseconde Metre per nanosecond is a unit of speed defined as metre divided by nanosecond. m/ns m ns-1 m·ns-1 metre per microsecond meter per microseconde Metre per microsecond is a unit of speed defined as metre divided by microsecond. m/μs m μs-1 m·μs-1 metre per millisecond meter per milliseconde Metre per millisecond is a unit of speed defined as metre divided by millisecond. m/ms m ms-1 m·ms-1 metre per centisecond meter per centiseconde Metre per centisecond is a unit of speed defined as metre divided by centisecond. m/cs m cs-1 m·cs-1 metre per decisecond meter per deciseconde Metre per decisecond is a unit of speed defined as metre divided by decisecond. m/ds m ds-1 m·ds-1 metre per decasecond meter per decaseconde Metre per decasecond is a unit of speed defined as metre divided by decasecond. m/das m das-1 m·das-1 metre per hectosecond meter per hectoseconde Metre per hectosecond is a unit of speed defined as metre divided by hectosecond. m/hs m hs-1 m·hs-1 metre per kilosecond meter per kiloseconde Metre per kilosecond is a unit of speed defined as metre divided by kilosecond. m/ks m ks-1 m·ks-1 metre per megasecond meter per megaseconde Metre per megasecond is a unit of speed defined as metre divided by megasecond. m/Ms m Ms-1 m·Ms-1 metre per gigasecond meter per gigaseconde Metre per gigasecond is a unit of speed defined as metre divided by gigasecond. m/Gs m Gs-1 m·Gs-1 metre per terasecond meter per teraseconde Metre per terasecond is a unit of speed defined as metre divided by terasecond. m/Ts m Ts-1 m·Ts-1 metre per petasecond meter per petaseconde Metre per petasecond is a unit of speed defined as metre divided by petasecond. m/Ps m Ps-1 m·Ps-1 metre per exasecond meter per exaseconde Metre per exasecond is a unit of speed defined as metre divided by exasecond. m/Es m Es-1 m·Es-1 metre per zettasecond meter per zettaseconde Metre per zettasecond is a unit of speed defined as metre divided by zettasecond. m/Zs m Zs-1 m·Zs-1 metre per yottasecond meter per yottaseconde Metre per yottasecond is a unit of speed defined as metre divided by yottasecond. m/Ys m Ys-1 m·Ys-1 prefixed metre per second (time) 1 1 metre per prefixed second (time) 1 1 prefixed metre per prefixed second (time) 1 1 knot (international) knoop (internationaal) 海里/小时（国际） international knot The international knot is a unit of speed defined as nautical mile per hour. millimetre per minute millimeter per minuut Millimetre per minute is a unit of speed defined as millimetre divided by minute. mm/min mm min-1 mm·min-1 centimetre per minute centimeter per minuut Centimetre per minute is a unit of speed defined as centimetre divided by minute. cm/min cm min-1 cm·min-1 metre per minute meter per minuut Metre per minute is a unit of speed defined as metre divided by minute. m/min m min-1 m·min-1 millimetre per hour millimeter per uur Millimetre per hour is a unit of speed defined as millimetre divided by hour. mm/h mm h-1 mm·h-1 kilometre per hour kilometer per uur Kilometre per hour is a unit of speed defined as kilometre divided by hour. km/h km h-1 km·h-1 millimetre per day millimeter per dag Millimetre per day is a unit of speed defined as millimetre divided by day. mm/d mm d-1 mm·d-1 centimetre per day centimeter per dag Centimetre per day is a unit of speed defined as centimetre divided by day. cm/d cm d-1 cm·d-1 metre per day meter per dag Metre per day is a unit of speed defined as metre divided by day. m/d m d-1 m·d-1 mile (statute) per hour mijl per uur Mile (statute) per hour is a unit of speed defined as mile (statute) divided by hour. mi/h mi h-1 mi·h-1 nautical mile per hour zeemijl per uur Nautical mile per hour is a unit of speed defined as nautical mile divided by hour. nmi/h nmi h-1 nmi·h-1 M/h M h-1 M·h-1 NM/h NM h-1 NM·h-1 nm/h nm h-1 nm·h-1 metre kilogram per second squared meter kilogram per seconde kwadraat m kg/s2 m·kg/s2 m kg s-2 m·kg·s-2 force unit newton newton 牛顿 The newton is a unit of force defined as kilogram timesmetre divided by second squared. The newton is a unit of force defined as kilogram times metre divided by second squared. The newton is a derived unit in the International System of Units. N yoctonewton yoctonewton yN zeptonewton zeptonewton zN attonewton attonewton aN femtonewton femtonewton fN piconewton piconewton pN nanonewton nanonewton nN micronewton micronewton μN millinewton millinewton mN centinewton centinewton cN decinewton decinewton dN decanewton decanewton daN hectonewton hectonewton hN kilonewton kilonewton kN meganewton meganewton MN giganewton giganewton GN teranewton teranewton TN petanewton petanewton PN exanewton exanewton EN zettanewton zettanewton ZN yottanewton yottanewton YN prefixed newton 1 1 dyne dyne 达因 The dyne is a unit of force defined as 1.0e-5 newton. dyn 0.000010 kip kip The kip is a unit of force defined as 4.448222e3 newton. 4448.222 pound-force The pound-force is a unit of force defined as 4.448222 newton. lbf 4.448222 poundal The poundal is a unit of force defined as 1.382550e-1 newton. 0.1382550 ton-force (short) short ton-force The short ton-force is a unit of force defined as 8.896443e3 newton. 8896.443 newton per square metre newton per vierkante meter N/m2 N m-2 N·m-2 pressure unit stress unit reciprocal metre kilogram second to the power -2 omgekeerde meter kilogram seconde tot de macht -2 m-1 kg s-2 m-1·kg·s-2 pascal pascal The pascal is a unit of pressure and stress defined as newton divided by square metre = joule divided by cubic metre = kilogram divided by metre second squared. The pascal is a unit of pressure and stress defined as newton divided by square metre = joule divided by cubic metre = kilogram divided by metre second squared. The pascal is a derived unit in the International System of Units. Pa yoctopascal yoctopascal yPa zeptopascal zeptopascal zPa attopascal attopascal aPa femtopascal femtopascal fPa picopascal picopascal pPa nanopascal nanopascal nPa micropascal micropascal μPa millipascal millipascal mPa centipascal centipascal cPa decipascal decipascal dPa decapascal decapascal daPa hectopascal hectopascal hPa kilopascal kilopascal kPa megapascal megapascal MPa gigapascal gigapascal GPa terapascal terapascal TPa petapascal petapascal PPa exapascal exapascal EPa zettapascal zettapascal ZPa yottapascal yottapascal YPa prefixed pascal 1 1 bar bar 巴（压力计量单位） The bar is a unit of pressure defined as 100 000 pascal. \barUnit bar 100000 microbar microbar 微巴 The microbar is a unit of pressure defined as 1.0e-6 bar. μbar millibar millibar The millibar is a unit of pressure defined as 1.0e-3 bar. mbar decibar decibar The decibar is a unit of pressure defined as 1.0e-1 bar. dbar metre of mercury meter kwik The metre of mercury is a unit of pressure defined as 133 322 pascal. m Hg 133322 millimetre of mercury millimeter kwik The millimetre of mercury is a unit of pressure defined as 1.0e-3 metre of mercury. mm Hg centimetre of mercury centimeter kwik The centimetre of mercury is a unit of pressure defined as 1.0e-2 metre of mercury. cm Hg atmosphere (standard) atmosfeer (standaard) standard atmosphere The standard atmosphere is a unit of pressure defined as 1.01325e5 pascal. atm 101325 atmosphere (technical) technical atmosphere The technical atmosphere is a unit of pressure defined as 9.80665e4 pascal. at 98066.5 barye barye The barye is a unit of pressure defined as 0.1 pascal. ba 0.10 torr torr The torr is a unit of pressure defined as 1.333224e2 pascal. Torr 133.322368421053 torque unit moment of force unit newton metre newton meter N m N·m energy unit micronewton metre micronewton meter μN m μN·m millinewton metre millinewton meter mN m mN·m joule joule 焦耳 The joule is a unit of energy defined as kilogram times square metre divided by second squared. The joule is a unit of energy defined as kilogram times square metre divided by second squared. The joule is a derived unit in the International System of Units. J yoctojoule yoctojoule The yoctojoule is a unit of energy defined as 1.0e-24 joule. yJ zeptojoule zeptojoule The zeptjoule is a unit of energy defined as 1.0e-21 joule. zJ attojoule attojoule The attojoule is a unit of energy defined as 1.0e-18 joule. aJ femtojoule femtojoule The femtojoule is a unit of energy defined as 1.0e-15 joule. fJ picojoule picojoule The picojoule is a unit of energy defined as 1.0e-12 joule. pJ nanojoule nanojoule The nanojoule is a unit of energy defined as 1.0e-9 joule. nJ microjoule microjoule The microjoule is a unit of energy defined as 1.0e-6 joule. μJ millijoule millijoule The millijoule is a unit of energy defined as 1.0e-3 joule. mJ centijoule centijoule The centijoule is a unit of energy defined as 1.0e-2 joule. cJ decijoule decijoule The decijoule is a unit of energy defined as 1.0e-1 joule. dJ decajoule decajoule The decajoule is a unit of energy defined as 1.0e1 joule. daJ hectojoule hectojoule The hectojoule is a unit of energy defined as 1.0e2 joule. hJ kilojoule kilojoule The kilojoule is a unit of energy defined as 1.0e3 joule. kJ megajoule megajoule The megajoule is a unit of energy defined as 1.0e6 joule. MJ gigajoule gigajoule The gigajoule is a unit of energy defined as 1.0e9 joule. GJ terajoule terajoule The terajoule is a unit of energy defined as 1.0e12 joule. TJ petajoule petajoule The petajoule is a unit of energy defined as 1.0e15 joule. PJ exajoule exajoule The exajoule is a unit of energy defined as 1.0e18 joule. EJ zettajoule zettajoule The zettajoule is a unit of energy defined as 1.0e21 joule. ZJ yottajoule yottajoule The yottajoule is a unit of energy defined as 1.0e24 joule. YJ prefixed joule 1 1 electronvolt electronvolt 电子伏特 The electronvolt is a unit of energy defined as 1.602177e-19 joule. eV 0.0000000000000000001602177 kiloelectronvolt kiloelectronvolt The kiloelectronvolt is a unit of energy defined as 1.0e3 electronvolt. keV megaelectronvolt megaelectronvolt The megaelectronvolt is a unit of energy defined as 1.0e6 electronvolt. MeV gigaelectronvolt gigaelectronvolt The gigaelectronvolt is a unit of energy defined as 1.0e9 electronvolt. GeV prefixed electronvolt 1 1 calorie (mean) mean calorie The mean calorie is a unit of energy defined as 4.19002 joule. cal c 4.19002 kilocalorie (mean) The kilocalorie (mean) is a unit of energy defined as 1.0e3 calorie (mean). kcal prefixed calorie (mean) 1 1 erg erg 尔格 The erg is a unit of energy defined as 1.0e-7 joule. erg 0.00000010 megaerg megalerg The megaerg is a unit of energy defined as 1.0e6 erg. Merg watt hour watt-hour watthour W h W·h Wh kilowatt hour kilowatt-hour kilowatthour kW h kW·h kWh megawatt hour megawatt-hour megawatthour MW h MW·h MWh gigawatt hour gigawatt-hour gigawatthour GW h GW·h GWh terawatt hour terawatt-hour terawatthour TW h TW·h TWh British thermal unit (39 °F) 英国热力单位（39°F） 39 °F British thermal unit \BritishTermalUnitThirtyNineF Btu British thermal unit (59 °F) 英国热力单位（59°F） 59 °F British thermal unit \BritishTermalUnitFiftyNineF Btu British thermal unit (60 °F) 英国热力单位（60°F） 60 °F British thermal unit \BritishTermalUnitSixtyF Btu British thermal unit (International Table) 英国热力单位（国际表） International Table British thermal unit Btu_IT Btu_{IT} British thermal unit (mean) 英国热力单位（平均） mean British thermal unit Btu British thermal unit (thermochemical) 英国热力单位（热力化学） thermochemical British thermal unit Btu_th BTU_{th} calorie (15 °C) calorie (15 °C) 15 °C calorie 15 °C calorie cal_15 cal_{15} calorie (20 °C) calorie (20 °C) 20 °C calorie 20 °C calorie \calorieTwentyC cal_20 cal_{20} calorie (International Table) calorie (International Steam Table) International Table calorie International Steam Table calorie cal_IT cal_{IT} calorie (thermochemical) thermochemical calorie cal_th cal_{th} foot poundal The foot poundal is a unit of energy defined as 4.214011e-2 joule. 0.04214011 quad The quad is a unit of energy defined as 1.0e15 British thermal unit (International Table). 1000000000000000 \quadUnit therm (EC) EC therm The EC therm is a unit of energy defined as 1.05506e8 joule. 105506000 therm (US) US therm The US therm is a unit of energy defined as 1.054804e8 joule. 105480400 ton of TNT The ton of TNT is a unit of energy defined as 4.184e9 joule. 4184000000 joule per second joule per seconde J/s J s-1 J·s-1 power unit watt watt The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3. The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3. The watt is a derived unit in the International System of Units. W yoctowatt yoctowatt yW zeptowatt zeptowatt zW attowatt attowatt aW femtowatt femtowatt fW picowatt picowatt pW nanowatt nanowatt nW microwatt microwatt μW milliwatt milliwatt mW centiwatt centiwatt cW deciwatt deciwatt dW decawatt decawatt daW hectowatt hectowatt hW kilowatt kilowatt kW megawatt megawatt MW gigawatt gigawatt GW terawatt terawatt TW petawatt petawatt PW exawatt exawatt EW zettawatt zettawatt ZW yottawatt yottawatt YW prefixed watt 1 1 horsepower (boiler) boiler horsepower The boiler horsepower is a unit of power defined as 9.80950e3 watt. 9809.50 horsepower (British) British horsepower imperial horsepower The British horsepower is a unit of power defined as 7.4570e2 watt. 745.70 horsepower (electric) electric horsepower The electric horsepower is a unit of power defined as 7.46e2 watt. 746 horsepower (metric) metric horsepower The metric horsepower is a unit of power defined as 7.354988e2 watt. PS 735.4988 horsepower (water) water horsepower The water horsepower is a unit of power defined as 7.46043e2 watt. 746.043 kilocalorie (mean) per day kcal/d kcal d-1 kcal·d-1 ton of refrigeration The ton of refrigeration is a unit of power defined as 3.516853e3 watt. 3516.853 joule per kilogram joule per kilogram 焦耳每千克 J/kg J kg-1 J·kg-1 kilocalorie (mean) per hectogram kilocalorie per 100 gram kcal/hg kcal/100 g kcal hg-1 kcal·hg-1 kilojoule per hectogram kilojoule per hectogram kilojoule per 100 gram kilojoule per 100 gram kJ/hg kJ/100 g kJ hg-1 kJ·hg-1 specific energy unit radian per second radiaal per seconde rad/s rad s-1 rad·s-1 angular speed unit millisecond (angle) per year milliseconde (hoek) per jaar Wordt gebruikt om de waargenomen verandering van de positie van sterren uit te drukken (de proper motion). mas/yr radian per second squared radiaal per seconde kwadraat rad/s2 rad s-2 rad·s-2 angular acceleration unit pascal second pascal seconde Pa s Pa·s dynamic viscosity unit poise poise The poise is a unit of dynamic viscosity defined as 1.0e-1 pascal second (time). P 0.10 centipoise centipoise cP prefixed poise 1 1 square metre per second vierkante meter per seconde m2/s m2 s-1 m2·s-1 kinematic viscosity unit stokes stokes The stokes is a unit of kinematic viscosity defined as 1.0e-4 square metre per second (time). St 0.00010 centistokes centistokes cSt prefixed stokes 1 1 watt per square metre watt per vierkante meter W/m2 W m-2 W·m-2 power density unit watt per steradian watt per steradiaal W/sr W sr-1 W·sr-1 radiant intensity unit watt per square metre steradian watt per vierkante meter steradiaal W/(m2 sr) W/(m2·sr) W m-2 sr-1 W·m-2·sr-1 radiance unit joule per cubic metre joule per kubieke meter J/m3 J m-3 J·m-3 energy density unit joule second joule seconde J s J·s action unit angular momentum unit erg second erg seconde erg s erg·s reciprocal pascal second omgekeerde pascal seconde Pa-1 s-1 Pa-1·s-1 (Pa s)-1 (Pa·s)-1 -1 fluidity unit rhe rhe The rhe is a unit of fluidity defined as 10 reciprocal pascal second (time). 10 gram per gram gram per gram g/g g g-1 g·g-1 gram per kilogram gram per kilogram g/kg g kg-1 g·kg-1 0.001 gram per hectogram gram per hectogram gram per 100 gram gram per 100 gram g/hg g/100 g g hg-1 g·hg-1 kilogram per kilogram kilogram per kilogram kg/kg kg kg-1 kg·kg-1 milligram per kilogram milligram per kilogram mg/kg mg kg-1 mg·kg-1 milligram per hectogram milligram per hectogram milligram per 100 gram milligram per 100 gram mg/hg mg/100 g mg hg-1 mg·hg-1 microgram per hectogram microgram per hectogram microgram per 100 gram microgram per 100 gram μg/hg μg/100 g μg hg-1 μg·hg-1 metre kilogram per second meter kilogram per seconde m kg/s m·kg/s m kg s-1 m·kg·s-1 momentum unit kilogram square metre kilogram vierkante meter kg m2 kg·m2 moment of inertia unit shear rate unit newton per metre newton per meter N/m N m-1 N·m-1 surface tension unit cubic metre per second kubieke meter per seconde m3/s m3 s-1 m3·s-1 volumetric flow rate unit cubic metre per year kubieke meter per jaar litre per hour liter per uur l/h l h-1 l·h-1 cubic metre per cubic metre kubieke meter per kubieke meter m3/m3 m3 m-3 m3·m-3 cubic millimetre per cubic millimetre kubieke millimeter per kubieke millimeter mm3/mm3 mm3 mm-3 mm3·mm-3 cubic centimetre per cubic centimetre kubieke centimeter per kubieke centimeter cm3/cm3 cm3 cm-3 cm3·cm-3 reciprocal watt omgekeerde watt W-1 -1 detectivity unit kilogram per second kilogram per seconde kg/s kg s-1 kg·s-1 gram per day gram per dag g/d g d-1 g·d-1 milligram per day milligram per dag mg/d mg d-1 mg·d-1 mass flow unit metre kilogram meter kilogram m kg m·kg prefixed metre prefixed gram 1 1 reciprocal gram omgekeerde gram g-1 -1 kilogram second to the power -2 kilogram seconde tot de macht -2 kg s-2 kg·s-2 gram per joule gram per joule Gram per joule is a unit of mass per energy. Gram per joule is a unit of mass per energy defined as gram divided by joule. Gram per joule is a derived unit in the International System of Units. g/J g J-1 g·J-1 kilogram per gigajoule kilogram per gigajoule Kilogram per gigajoule is a unit of mass per energy. Kilogram per gigajoule is a unit of mass per energy defined as kilogram divided by gigajoule. Kilogram per gigajoule is a derived unit in the International System of Units. kg/GJ kg GJ-1 kg·GJ-1 microgram per joule microgram per joule μg/J μg J-1 μg·J-1 mass per energy unit gram per metre gram per meter g/m g m-1 g·m-1 milligram per kilometre milligram per kilometer mg/km mg km-1 mg·km-1 gram per square metre gram per vierkante meter g/m2 g m-2 g·m-2 area density unit kilogram per square metre kilogram per vierkante meter kg/m2 kg m-2 kg·m-2 kilogram per hectare kilogram per hectare kg/ha kg ha-1 kg·ha-1 ounce (avoirdupois) per square yard (international) oz/yd2 oz yd-2 oz·yd-1 hectare day hectare dag ha d ha·d kilogram per hectare day kilogram per hectare dag kg/(ha d) kg ha-1 d-1 kg·ha-1·d-1 area density rate unit joule per square metre joule per vierkante meter J/m2 J m-2 J·m-2 megajoule per square metre megajoule per vierkante meter MJ/m2 MJ m-2 MJ·m-2 joule per square metre second joule per vierkante meter seconde J/(m2 s) J m-2 s-1 J·m-2·s-1 joule per square metre day joule per vierkante meter dag J/(m2 d) J m-2 d-1 J·m-2·d-1 kilojoule per square metre day kilojoule per vierkante meter dag kJ/(m2 d) kJ m-2 d-1 kJ·m-2·d-1 megajoule per square metre day megajoule per vierkante meter dag MJ/(m2 d) MJ m-2 d-1 MJ·m-2·d-1 gram per square metre second gram per vierkante meter seconde g/(m2 s) g m-2 s-1 g·m-2·s-1 gram per square metre day gram per vierkante meter dag g/(m2 d) g m-2 d-1 g·m-2·d-1 microgram per square metre second microgram per vierkante meter seconde μg/(m2 s) μg m-2 s-1 μg·m-2·s-1 tonne per cubic metre ton per kubieke meter t/m3 t m-3 t·m-3 watt square metre watt vierkante meter W m2 W·m2 reciprocal square metre reciprocal gram omgekeerde vierkante meter omgekeerde gram m-2 g-1 m-2·g-1 gram per megajoule gram per megajoule g/MJ g MJ-1 g·MJ-1 watt per cubic metre watt per kubieke meter W/m3 W m-3 W·m-3 watt per hertz watt per hertz W/Hz W Hz-1 W·Hz-1 watt per nanometre watt per nanometer W/nm W nm-1 W·nm-1 watt per square metre hertz watt per vierkante meter hertz W/(m2 Hz) W m-2 Hz-1 W·m-2·Hz-1 watt per square metre nanometre watt per vierkante meter nanometer W/(m2 nm) W m-2 nm-1 W·m-2·nm-1 watt per steradian square metre watt per steradiaal vierkante meter W/(sr m2) W sr-1 m-2 W·sr-1·m-2 watt per steradian square metre hertz watt per steradiaal vierkante meter hertz W/(sr m2 Hz) W sr-1 m-2 Hz-1 W·sr-1·m-2·Hz-1 square metre per gram vierkante meter per gram m2/g m2 g-1 m2·g-1 megametre per kilojoule 1000 kilometre per kilojoule 1000 km/kJ Mm/kJ megaeuro per petajoule megaeuro per megawatt gram per square metre metre g/(m2 m) g m-2 m-1 g·m-2·m-1 gram per square metre centimetre g/(m2 cm) g m-2 cm-1 g·m-2·cm-1 tonne per hectare t/ha t ha-1 t·ha-1 metre per second per metre meter per seconde per metre m/s/m metre per cubic metre meter per kubieke meter m/m3 m m-3 m·m-3 centimetre per cubic centimetre centimeter per kubieke centimeter cm/cm3 cm cm-3 cm·cm-3 square metre second vierkante meter seconde m2 s m2·s square metre day vierkante meter dag m2 d m2·d second per day seconde per dag s/d s d-1 s·d-1 reciprocal square metre reciprocal metre omgekeerde vierkante meter omgekeerde meter m-2 m-1 m-2·m-1 square metre hertz vierkante meter hertz m2 Hz m2·Hz square metre nanometre vierkante meter nanometer m2 nm m2·nm reciprocal square metre omgekeerde vierkante meter m-2 -2 reciprocal square centimetre omgekeerde vierkante centimeter cm-2 -2 column number density unit parts per million per year ppm/a ppm a-1 ppm·a-1 ppm/y ppm y-1 ppm·y-1 ppm/yr ppm yr-1 ppm·yr-1 reciprocal parts per million ppm-1 -1 second per square metre s/m2 s m-2 s·m-2 square metre per square metre day m2/(m2 d) m2 m-2 d-1 m2·m-2·d-1 square metre per square metre vierkante meter per vierkante meter m2/m2 m2 m-2 m2·m-2 second squared seconde kwadraat s2 2 yoctosecond squared yoctoseconde kwadraat ys2 2 zeptosecond squared zeptoseconde kwadraat zs2 2 attosecond squared attoseconde kwadraat as2 2 femtosecond squared femtoseconde kwadraat fs2 2 picosecond squared picoseconde kwadraat ps2 2 nanosecond squared nanoseconde kwadraat ns2 2 microsecond squared microseconde kwadraat μs2 2 millisecond squared milliseconde kwadraat ms2 2 centisecond squared centiseconde kwadraat cs2 2 decisecond squared deciseconde kwadraat ds2 2 decasecond squared decaseconde kwadraat das2 2 hectosecond squared hectoseconde kwadraat hs2 2 kilosecond squared kiloseconde kwadraat ks2 2 megasecond squared megaseconde kwadraat Ms2 2 gigasecond squared gigaseconde kwadraat Gs2 2 terasecond squared teraseconde kwadraat Ts2 2 petasecond squared petaseconde kwadraat Ps2 2 exasecond squared exaseconde kwadraat Es2 2 zettasecond squared zettaseconde kwadraat Zs2 2 yottasecond squared yottaseconde kwadraat Ys2 2 prefixed second (time) squared 1 2 1 second to the power -2 seconde tot de macht -2 s-2 -2 steradian square metre steradiaal vierkante meter sr m2 sr·m2 steradian square metre hertz steradiaal vierkante meter hertz sr m2 Hz sr·m2·Hz square metre steradian vierkante meter steradian m2 sr m2·sr litre per 100 kilometre liter per 100 kilometer litre per 100 kilometre liter per 100 kilometer l/100 km 100 kilometre 100 kilometer 100 km 100 time dimension dimensie van tijd T 0 0 1 0 0 0 0 mass dimension massadimensie M 0 1 0 0 0 0 0 number density dimension -3 0 0 0 0 0 0 column number density dimension -2 0 0 0 0 0 0 wavenumber dimension golfgetaldimensie -1 0 0 0 0 0 0 frequency dimension 0 0 -1 0 0 0 0 acceleration dimension versnellingdimensie 1 0 -2 0 0 0 0 density dimension dichtheiddimensie -3 1 0 0 0 0 0 specific volume dimension 3 -1 0 0 0 0 0 speed dimension snelheiddimensie 1 0 -1 0 0 0 0 force dimension krachtdimensie 1 1 -2 0 0 0 0 pressure dimension -1 1 -2 0 0 0 0 energy dimension 2 1 -2 0 0 0 0 power dimension 2 1 -3 0 0 0 0 specific energy, absorbed dose, or dose equivalent dimension 2 0 -2 0 0 0 0 angular speed dimension 0 0 -1 0 0 0 0 angular acceleration dimension 0 0 -2 0 0 0 0 dynamic viscosity dimension -1 1 -1 0 0 0 0 kinematic viscosity dimension 2 0 -1 0 0 0 0 power density dimension 0 1 -3 0 0 0 0 energy density dimension -1 1 -2 0 0 0 0 action or angular momentum dimension 2 1 -1 0 0 0 0 fluidity dimension 1 -1 1 0 0 0 0 volumetric flow rate dimension 3 0 -1 0 0 0 0 mass flow dimension 0 1 -1 0 0 0 0 thermodynamics thermodynamica temperature temperatuur 温度 Temperature is the extent to which an object is hot. temp T t θ thermodynamic temperature absolute temperatuur thermodynamische temperatuur Thermodynamic temperature is the absolute measure of temperature. Its zero point is the temperature at which the particle constituents of matter have minimal motion and can be no colder. Thermodynamic temperature is a base quantity in the International System of Units. T Celsius temperature Celsiustemperatuur t θ Fahrenheit temperature Fahrenheittemperatuur T Rankine temperature Rankinetemperatuur T Réaumur temperature Réaumurtemperatuur T heat warmte quantity of heat Heat is any flow of energy from one body or system to another due to a difference in temperature. Q internal energy inwendige energie The internal energy of a thermodynamic system, or a body with well-defined boundaries is the total of the kinetic energy due to the motion of molecules (translational, rotational, vibrational) and the potential energy associated with the vibrational and electric energy of atoms within molecules or crystals. U heat flux density entropy entropie 熵单位 Entropy is a measure of the unavailability of a system’s energy to do work. S heat capacity warmtecapaciteit 热容量 Heat capacity is the heat required to increase the temperature of a system or substance one unit temperature. C_p C_v specific heat capacity soortelijke warmte specifieke warmte specifieke warmtecapaciteit c_p c_v heat flow rate Φ q specific entropy thermal conductivity thermische geleidbaarheid Termal conductivity indicates the ability of a material to conduct heat. κ k K λ thermal diffusivity thermal diffusivity unit thermal insulance thermal resistance temperature rate temperatuur-rate heating rate heat transfer coefficient volumetric heat capacity kelvin kelvin 开 K triple point of water 1/273.16 of the thermodynamic temperature of the triple point of water The kelvin is a unit of temperature defined as 1/273.16 of the thermodynamic temperature of the triple point of water. The kelvin is a unit of temperature defined as 1/273.16 of the thermodynamic temperature of the triple point of water. The kelvin is a base unit in the International System of Units. thermodynamic temperature unit temperature unit yoctokelvin yoctokelvin The yoctokelvin is a unit of temperature defined as 1.0e-24 kelvin. yK zeptokelvin zeptokelvin The zeptkelvin is a unit of temperature defined as 1.0e-21 kelvin. zK attokelvin attokelvin The attokelvin is a unit of temperature defined as 1.0e-18 kelvin. aK femtokelvin femtokelvin The femtokelvin is a unit of temperature defined as 1.0e-15 kelvin. fK picokelvin picokelvin The picokelvin is a unit of temperature defined as 1.0e-12 kelvin. pK nanokelvin nanokelvin The nanokelvin is a unit of temperature defined as 1.0e-9 kelvin. nK microkelvin microkelvin The microkelvin is a unit of temperature defined as 1.0e-6 kelvin. μK millikelvin millikelvin The millikelvin is a unit of temperature defined as 1.0e-3 kelvin. mK centikelvin centikelvin The centikelvin is a unit of temperature defined as 1.0e-2 kelvin. cK decikelvin decikelvin The decikelvin is a unit of temperature defined as 1.0e-1 kelvin. dK decakelvin decakelvin The decakelvin is a unit of thermodynamic temperature defined as 1.0e1 kelvin. daK hectokelvin hectokelvin The hectokelvin is a unit of thermodynamic temperature defined as 1.0e2 kelvin. hK kilokelvin kilokelvin The kilokelvin is a unit of thermodynamic temperature defined as 1.0e3 kelvin. kK megakelvin megakelvin The megakelvin is a unit of thermodynamic temperature defined as 1.0e6 kelvin. MK gigakelvin gigakelvin The gigakelvin is a unit of thermodynamic temperature defined as 1.0e9 kelvin. GK terakelvin terakelvin The terakelvin is a unit of thermodynamic temperature defined as 1.0e12 kelvin. TK petakelvin petakelvin The petakelvin is a unit of thermodynamic temperature defined as 1.0e15 kelvin. PK exakelvin exakelvin The exakelvin is a unit of thermodynamic temperature defined as 1.0e18 kelvin. EK zettakelvin zettakelvin The zettakelvin is a unit of thermodynamic temperature defined as 1.0e21 kelvin. ZK yottakelvin yottakelvin The yottakelvin is a unit of thermodynamic temperature defined as 1.0e24 kelvin. YK prefixed kelvin 1 1 degree Celsius graad Celsius 摄氏度 centigrade The degree Celsius is a unit of temperature defined as 1 kelvin. The degree Celsius is a unit of temperature defined as 1 kelvin. The degree Celsius is a derived unit in the International System of Units. °C Celsius temperature unit yoctodegree Celsius yoctograad Celsius The yoctodegree Celsius is a unit of temperature defined as 1.0e-24 degree Celsius. y°C zeptodegree Celsius zeptograad Celsius The zeptdegree Celsius is a unit of temperature defined as 1.0e-21 degree Celsius. z°C attodegree Celsius attograad Celsius The attodegree Celsius is a unit of temperature defined as 1.0e-18 degree Celsius. a°C femtodegree Celsius femtograad Celsius The femtodegree Celsius is a unit of temperature defined as 1.0e-15 degree Celsius. f°C picodegree Celsius picograad Celsius The picodegree Celsius is a unit of temperature defined as 1.0e-12 degree Celsius. p°C nanodegree Celsius nanograad Celsius The nanodegree Celsius is a unit of temperature defined as 1.0e-9 degree Celsius. n°C microdegree Celsius micrograad Celsius The microdegree Celsius is a unit of temperature defined as 1.0e-6 degree Celsius. μ°C millidegree Celsius milligraad Celsius The millidegree Celsius is a unit of temperature defined as 1.0e-3 degree Celsius. m°C centidegree Celsius centigraad Celsius The centidegree Celsius is a unit of temperature defined as 1.0e-2 degree Celsius. c°C decidegree Celsius decigraad Celsius The decidegree Celsius is a unit of temperature defined as 1.0e-1 degree Celsius. d°C prefixed degree Celsius 1 1 degree Fahrenheit graad Fahrenheit The degree Fahrenheit is a unit of temperature defined as 5.555556e-1 kelvin. °F 0.5555556 degree Rankine graad Rankine The degree Rankine is a unit of temperature defined as 5.555556e-1 kelvin. °R °Ra 0.5555556 degree Réaumur graad Réaumur The degree Réaumur is a unit of temperature defined as 1.25 kelvin. °Ré °Re °R 1.25 Fahrenheit temperature unit Rankine temperature unit Réaumur temperature unit joule per kelvin joule per kelvin J/K J K-1 J·K-1 entropy unit heat capacity unit joule per kelvin kilogram joule per kelvin kilogram J/(K kg) J/(K·kg) J K-1 kg-1 J·K-1·kg-1 specific entropy unit specific heat capacity unit watt per metre kelvin watt per meter kelvin W/(m K) W/(m·K) W m-1 K-1 W·m-1·K-1 thermal conductivity unit square metre kelvin vierkante meter kelvin m2 K m2·K square metre kelvin per watt vierkante meter kelvin per watt m2 K/W m2·K/W m2 K W-1 m2·K·W-1 thermal insulance unit kelvin per watt kelvin per watt K/W K W-1 K·W-1 thermal resistance unit watt per square metre kelvin watt per vierkante meter kelvin W/m2 K W/(m2·K) W m-2 K-1 W·m-2·K-1 heat transfer coefficient unit degree Celsius per hour graad Celsius per uur °C/h °C h-1 °C·h-1 degree Celsius per minute graad Celsius per minuut °C/min °C min-1 °C·min-1 degree Celsius per second graad Celsius per seconde °C/s °C s-1 °C·s-1 temperature rate unit kelvin kilogram kelvin kilogram K kg K·kg metre kelvin meter kelvin m K m·K pascal second square metre pascal seconde vierkante meter Pa s m2 Pa·s·m2 reciprocal atmosphere (standard) omgekeerde atmosfeer (standaard) atm-1 -1 degree Celsius day graad Celsius dag °C d °C·d reciprocal kelvin omgekeerde kelvin K-1 -1 reciprocal degree Celsius omgekeerde graad Celsius °C-1 -1 reciprocal degree Celsius day omgekeerde graad Celsius dag (°C d)-1 -1 cubic metre kelvin m3 K m3·K joule per cubic metre kelvin joule per kubieke meter kelvin J/m3 K J/(m3·K) J m-3 K-1 J·m-3·K-1 volumetric heat capacity unit Kelvin scale Kelvinschaal 开氏温标 International Kelvin Temperature scale of 1990 triple point of water thermodynamic temperature 3 to 5 on the Kelvin scale 3 to 5 13.8033 on the Kelvin scale 13.8033 ~17 on the Kelvin scale ~17 ~20.3 on the Kelvin scale ~20.3 24.5561 on the Kelvin scale 24.5561 54.3584 on the Kelvin scale 54.3584 83.8058 on the Kelvin scale 83.8058 234.3156 on the Kelvin scale 234.3156 273.16 on the Kelvin scale 273.16 302.9146 on the Kelvin scale 302.9146 429.7485 on the Kelvin scale 429.7485 505.078 on the Kelvin scale 505.078 692.677 on the Kelvin scale 692.677 933.473 on the Kelvin scale 933.473 1234.93 on the Kelvin scale 1234.93 1337.33 on the Kelvin scale 1337.33 1357.77 on the Kelvin scale 1357.77 thermodynamic temperature scale Celsius scale Celsiusschaal 摄氏温标 International Celsius Temperature scale of 1990 -270.15 to -268.15 on the Celsius scale -270.15至-268.15摄氏度 One of the fixed points defining the Celsius scale -270.15 to -268.15 -259.3467 on the Celsius scale -259.3467摄氏度 -259.3467 ~-256.15 on the Celsius scale 〜-256.15摄氏度 ~-256.15 ~-252.85 on the Celsius scale 〜-252.85摄氏度 ~-252.85 -248.5939 on the Celsius scale -248.5939摄氏度 -248.5939 -218.7916 on the Celsius scale -218.7916摄氏度 -218.7916 -189.3442 on the Celsius scale -189.3442摄氏度 -189.3442 -38.8344 on the Celsius scale -38.8344摄氏度 -38.8344 0.01 on the Celsius scale 0.01摄氏度 0.01 29.7646 on the Celsius scale 29.7646摄氏度 29.7646 156.5985 on the Celsius scale 156.5985摄氏度 156.5985 231.928 on the Celsius scale 231.928摄氏度 231.928 419.527 on the Celsius scale 419.527摄氏度 419.527 660.323 on the Celsius scale 660.323摄氏度 660.323 961.78 on the Celsius scale 961.78摄氏度 961.78 1064.18 on the Celsius scale 1064.18摄氏度 1064.18 1084.62 on the Celsius scale 1084.62摄氏度 1084.62 1 -273.15 Celsius temperature scale Fahrenheit scale Fahrenheitschaal 华氏温标 1.8 -459.67 Rankine scale Rankineschaal 兰金规模 1.8 0 Réaumur scale Réaumurschaal 列氏温标 1 -218.52 Fahrenheit temperature scale Rankine temperature scale Réaumur temperature scale thermodynamic temperature dimension absolute-temperatuurdimensie Θ 0 0 0 0 1 0 0 entropy or heat capacity dimension 2 1 -2 0 -1 0 0 specific entropy or specific heat capacity dimension 2 0 -2 0 -1 0 0 thermal conductivity dimension 1 1 -3 0 -1 0 0 thermal insulance dimension 0 -1 3 0 1 0 0 thermal resistance dimension -2 -1 3 0 1 0 0 heat transfer coefficient dimension 0 1 -3 0 -1 0 0 volumetric heat capacity dimension -1 1 -2 0 -1 0 0 electromagnetism elektromagnetisme electric current current Electric current is the flow of electric charge. It is a base quantity in the International System of Units. Electric current is electric charge divided by time. I i current density Current density is the density of flow of a conserved charge. It is a derived quantity in the International System of Units. Current density is electric current divided by area. J j electric charge electrische lading quantity of electricity lading Electric charge is a conserved property of some subatomic particles, which determines their electromagnetic interaction. It is a derived quantity in the International System of Units. Electric charge is electric current times time. Q q electric potential electrische potentiaal voltage voltage Electric potential is the potential energy per unit charge associated with static (time-invariant) electric field. V φ electromotive force Electromotive force is that which causes a flow of current. E emf potential difference potentiaalverschil U V capacitance capaciteit electric capacitance electrische capaciteit Capacitance is the ability to hold electrical charge. It is a derived quantity in the International System of Units. Capacitance is electric charge divided by electric potential. C electrical resistance electric resistance resistance Electrical resistance is the degree to which an object opposes an electric current through it. It is a derived quantity in the International System of Units. Electrical resistance is electric potential divided by electric current. R electrical conductance electric conductance conductance Electrical conductance is a measure of how easily electricity flows along a certain path through an electrical element. G electric field electrisch veld electric field strength Electric field is a property of the space surrounding an electric charge or in the presence of a time-varying magnetic field which exerts a forceon other electrically charged objects. E electric charge density charge density Electric charge density is the amount of electric charge in a volume. It is a derived quantity in the International System of Units. Electric charge density is electric charge divided by volume. electric flux density magnetic flux Magnetic flux through any area perpendicular to a magnetic field is the product of the area by the field strength. Φ magnetic field magnetic field strength magnetic field intensity magnetizing field H magnetic flux density magnetic field magnetic induction B permeance (electromagnetic) electromagnetic permeance Electromagnetic permeance is a measure of flux for a number of current-turns in magnetic circuit. Λ inductance Inductance is that property in an electrical circuit where a change in the current flowing through that circuit induces an electromotive force that opposes the change in current. permeability of free space vacuum permeability μ permittivity ε electric dipole moment Electric dipole moment is a measure of the polarity of a system of electric charges. p reluctance τ admittance Admittance is a measure of how easily a circuit or device will allow a current to flow. It is electric current divided by electric potential. Y electrical resistivity electrical conductivity magnetomotive force F ampere ampère A constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum The ampere is a unit of electric current defined as the constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum. The ampere is a unit of electric current defined as the constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum. The ampere is a base unit in the International System of Units. electric current unit magnetomotive force unit yoctoampere yoctoampère The yoctoampere is a unit of electric current defined as 1.0e-24 ampere. yA zeptoampere zeptoampère The zeptampere is a unit of electric current defined as 1.0e-21 ampere. zA attoampere attoampère The attoampere is a unit of electric current defined as 1.0e-18 ampere. aA femtoampere femtoampère The femtoampere is a unit of electric current defined as 1.0e-15 ampere. fA picoampere picoampère The picoampere is a unit of electric current defined as 1.0e-12 ampere. pA nanoampere nanoampère The nanoampere is a unit of electric current defined as 1.0e-9 ampere. nA microampere microampère The microampere is a unit of electric current defined as 1.0e-6 ampere. μA milliampere milliampère The milliampere is a unit of electric current defined as 1.0e-3 ampere. mA centiampere centiampère The centiampere is a unit of electric current defined as 1.0e-2 ampere. cA deciampere deciampère The deciampere is a unit of electric current defined as 1.0e-1 ampere. dA decaampere decaampère The decaampere is a unit of electric current defined as 1.0e1 ampere. daA hectoampere hectoampère The hectoampere is a unit of electric current defined as 1.0e2 ampere. hA kiloampere kiloampère The kiloampere is a unit of electric current defined as 1.0e3 ampere. kA megaampere megaampère The megaampere is a unit of electric current defined as 1.0e6 ampere. MA gigaampere gigaampère The gigaampere is a unit of electric current defined as 1.0e9 ampere. GA teraampere teraampère The teraampere is a unit of electric current defined as 1.0e12 ampere. TA petaampere petaampère The petaampere is a unit of electric current defined as 1.0e15 ampere. PA exaampere exaampère The exaampere is a unit of electric current defined as 1.0e18 ampere. EA zettaampere zettaampère The zettaampere is a unit of electric current defined as 1.0e21 ampere. ZA yottaampere yottaampère The yottaampere is a unit of electric current defined as 1.0e24 ampere. YA prefixed ampere 1 1 abampere abampère The abampere is a unit of electric current defined as 10 ampere. abA 10 biot biot The biot is a unit of electric current defined as 10 ampere. Bi 10 statampere statampère The statampere is a unit of electric current defined as 3.335641e-10 ampere. statA 0.0000000003335641 gilbert gilbert The gilbert is a unit of electric current defined as 7.957747e-1 ampere. Gb 0.7957747 ampere per square metre ampère per vierkante meter Ampere per square metre is a unit of current density defined as ampere divided by square metre. Ampere per square metre is a unit of current density defined as ampere divided by square metre. Ampere per square metre is a derived unit in the International System of Units. A/m2 A m-2 A·m-2 current density unit second ampere seconde ampère s A s·A electric charge unit coulomb coulomb The coulomb is a unit of electric charge defined as ampere times second = farad times volt. The coulomb is a unit of electric charge defined as ampere times second = farad times volt. The coulomb is a derived unit in the International System of Units. C yoctocoulomb yoctocoulomb The yoctocoulomb is a unit of electric charge defined as 1.0e-24 coulomb. yC zeptocoulomb zeptocoulomb The zeptcoulomb is a unit of electric charge defined as 1.0e-21 coulomb. zC attocoulomb attocoulomb The attocoulomb is a unit of electric charge defined as 1.0e-18 coulomb. aC femtocoulomb femtocoulomb The femtocoulomb is a unit of electric charge defined as 1.0e-15 coulomb. fC picocoulomb picocoulomb The picocoulomb is a unit of electric charge defined as 1.0e-12 coulomb. pC nanocoulomb nanocoulomb The nanocoulomb is a unit of electric charge defined as 1.0e-9 coulomb. nC microcoulomb microcoulomb The microcoulomb is a unit of electric charge defined as 1.0e-6 coulomb. μC millicoulomb millicoulomb The millicoulomb is a unit of electric charge defined as 1.0e-3 coulomb. mC centicoulomb centicoulomb The centicoulomb is a unit of electric charge defined as 1.0e-2 coulomb. cC decicoulomb decicoulomb The decicoulomb is a unit of electric charge defined as 1.0e-1 coulomb. dC decacoulomb decacoulomb The decacoulomb is a unit of electric charge defined as 1.0e1 coulomb. daC hectocoulomb hectocoulomb The hectocoulomb is a unit of electric charge defined as 1.0e2 coulomb. hC kilocoulomb kilocoulomb The kilocoulomb is a unit of electric charge defined as 1.0e3 coulomb. kC megacoulomb megacoulomb The megacoulomb is a unit of electric charge defined as 1.0e6 coulomb. MC gigacoulomb gigacoulomb The gigacoulomb is a unit of electric charge defined as 1.0e9 coulomb. GC teracoulomb teracoulomb The teracoulomb is a unit of electric charge defined as 1.0e12 coulomb. TC petacoulomb petacoulomb The petacoulomb is a unit of electric charge defined as 1.0e15 coulomb. PC exacoulomb exacoulomb The exacoulomb is a unit of electric charge defined as 1.0e18 coulomb. EC zettacoulomb zettacoulomb The zettacoulomb is a unit of electric charge defined as 1.0e21 coulomb. ZC yottacoulomb yottacoulomb The yottacoulomb is a unit of electric charge defined as 1.0e24 coulomb. YC prefixed coulomb 1 1 abcoulomb abcoulomb The abcoulomb is a unit of electric charge defined as 10 coulomb. abC 10 faraday faraday The faraday is a unit of electric charge defined as 9.648531e4 coulomb. franklin franklin The franklin is a unit of electric charge defined as 3.335641e-10 coulomb. Fr 0.0000000003335641 statcoulomb statcoulomb The statcoulomb is a unit of electric charge defined as 3.335641e-10 coulomb. statC 0.0000000003335641 ampere hour ampère-uur A h A·h Ah milliampere hour milliampère-uur mA h mA·h mAh watt per ampere watt per ampère W/A W A-1 W·A-1 electric potential unit volt volt The volt is a unit of electric potential defined as watt divided by ampere = joule divided by coulomb = newton times metre divided by ampere times second = kilogram times square metre divided by ampere times second to the power 3. The volt is a unit of electric potential defined as watt divided by ampere = joule divided by coulomb = newton times metre divided by ampere times second = kilogram times square metre divided by ampere times second to the power 3. The volt is a derived unit in the International System of Units. V yoctovolt yoctovolt yV zeptovolt zeptovolt zV attovolt attovolt aV femtovolt femtovolt fV picovolt picovolt pV nanovolt nanovolt nV microvolt microvolt μV millivolt millivolt mV centivolt centivolt cV decivolt decivolt dV decavolt decavolt daV hectovolt hectovolt hV kilovolt kilovolt kV megavolt megavolt MV gigavolt gigavolt GV teravolt teravolt TV petavolt petavolt PV exavolt exavolt EV zettavolt zettavolt ZV yottavolt yottavolt YV prefixed volt 1 1 abvolt abvolt The abvolt is a unit of electric potential defined as 1.0e-8 volt. abV 0.000000010 statvolt statvolt The statvolt is a unit of electric potential defined as 2.997925e2 volt. statV 299.7925 coulomb per volt coulomb per volt C/V C V-1 C·V-1 capacitance unit farad farad The farad is a unit of capacitance defined as ampere times second divided by volt = coulomb divided by volt = coulomb squared divided by joule = coulomb squared divided by newton times metre = second squared times coulomb squared divided by square metre times kilogram = second to the power 4 times ampere squared divided by square metre times kilogram. The farad is a unit of capacitance defined as ampere times second divided by volt = coulomb divided by volt = coulomb squared divided by joule = coulomb squared divided by newton times metre = second squared times coulomb squared divided by square metre times kilogram = second to the power 4 times ampere squared divided by square metre times kilogram. The farad is a derived unit in the International System of Units. F yoctofarad yoctofarad The yoctofarad is a unit of capacitance defined as 1.0e-24 farad. yF zeptofarad zeptofarad The zeptfarad is a unit of capacitance defined as 1.0e-21 farad. zF attofarad attofarad The attofarad is a unit of capacitance defined as 1.0e-18 farad. aF femtofarad femtofarad The femtofarad is a unit of capacitance defined as 1.0e-15 farad. fF picofarad picofarad The picofarad is a unit of capacitance defined as 1.0e-12 farad. pF nanofarad nanofarad The nanofarad is a unit of capacitance defined as 1.0e-9 farad. nF microfarad microfarad The microfarad is a unit of capacitance defined as 1.0e-6 farad. μF millifarad millifarad The millifarad is a unit of capacitance defined as 1.0e-3 farad. mF centifarad centifarad The centifarad is a unit of capacitance defined as 1.0e-2 farad. cF decifarad decifarad The decifarad is a unit of capacitance defined as 1.0e-1 farad. dF decafarad decafarad The decafarad is a unit of capacitance defined as 1.0e1 farad. daF hectofarad hectofarad The hectofarad is a unit of capacitance defined as 1.0e2 farad. hF kilofarad kilofarad The kilofarad is a unit of capacitance defined as 1.0e3 farad. kF megafarad megafarad The megafarad is a unit of capacitance defined as 1.0e6 farad. MF gigafarad gigafarad The gigafarad is a unit of capacitance defined as 1.0e9 farad. GF terafarad terafarad The terafarad is a unit of capacitance defined as 1.0e12 farad. TF petafarad petafarad The petafarad is a unit of capacitance defined as 1.0e15 farad. PF exafarad exafarad The exafarad is a unit of capacitance defined as 1.0e18 farad. EF zettafarad zettafarad The zettafarad is a unit of capacitance defined as 1.0e21 farad. ZF yottafarad yottafarad The yottafarad is a unit of capacitance defined as 1.0e24 farad. YF prefixed farad 1 1 abfarad abfarad The abfarad is a unit of capacitance defined as 1.0e9 farad. abF 1000000000 statfarad statfarad The statfarad is a unit of capacitance defined as 1.112650e-12 farad. statF 0.000000000001112650 volt per ampere volt per ampère V/A V A-1 V·A-1 electrical resistance unit ohm ohm The ohm is a unit of electrical resistance defined as volt divided by ampere = square metre times kilogram divided by second to the power 3 times ampere squared. The ohm is a unit of electrical resistance defined as volt divided by ampere = square metre times kilogram divided by second to the power 3 times ampere squared. The ohm is a derived unit in the International System of Units. Ω yoctoohm yoctoohm yΩ zeptoohm zeptoohm zΩ attoohm attoohm aΩ femtoohm femtoohm fΩ picoohm picoohm pΩ nanoohm nanoohm nΩ microohm microohm μΩ milliohm milliohm mΩ centiohm centiohm cΩ deciohm deciohm dΩ decaohm decaohm daΩ hectoohm hectoohm hΩ kilohm kilohm kiloohm kΩ megohm megohm megaohm MΩ gigaohm gigaohm GΩ teraohm teraohm TΩ petaohm petaohm PΩ exaohm exaohm EΩ zettaohm zettaohm ZΩ yottaohm yottaohm YΩ prefixed ohm 1 1 abohm abohm The abohm is a unit of electrical resistance defined as 1.0e-9 ohm. abΩ 0.0000000010 statohm statohm The statohm is a unit of electrical resistance defined as 8.987552e11 ohm. statΩ 898755200000 ampere per volt ampère per volt A/V A V-1 A·V-1 electrical conductance unit siemens siemens The siemens is a unit of electrical conductance defined as 1 divided by ohm = ampere divided by volt = coulomb squared times second divided by kilogram times square metre = ampere squared times second to the power 3 divided by kilogram times square metre. The siemens is a unit of electrical conductance defined as 1 divided by ohm = ampere divided by volt = coulomb squared times second divided by kilogram times square metre = ampere squared times second to the power 3 divided by kilogram times square metre. The siemens is a derived unit in the International System of Units. S yoctosiemens yoctosiemens yS zeptosiemens zeptosiemens zS attosiemens attosiemens aS femtosiemens femtosiemens fS picosiemens picosiemens pS nanosiemens nanosiemens nS microsiemens microsiemens μS millisiemens millisiemens mS centisiemens centisiemens cS decisiemens decisiemens dS decasiemens decasiemens daS hectosiemens hectosiemens hS kilosiemens kilosiemens kS megasiemens megasiemens MS gigasiemens gigasiemens GS terasiemens terasiemens TS petasiemens petasiemens PS exasiemens exasiemens ES zettasiemens zettasiemens ZS yottasiemens yottasiemens YS prefixed siemens 1 1 abmho abmho absiemens absiemens The abmho is a unit of electrical conductance defined as 1.0e9 siemens. 1000000000 mho mho The mho is a unit of electrical conductance defined as 1 siemens. \mhoUnit statmho statmho statsiemens statsiemens The statmho is a unit of electrical conductance defined as 1.112650e-12 siemens. 0.000000000001112650 newton per coulomb newton per coulomb N/C N C-1 N·C-1 electric field unit volt per metre volt per meter V/m V m-1 V·m-1 coulomb per cubic metre coulomb per kubieke meter C/m3 C m-3 C·m-3 electric charge density unit coulomb per square metre coulomb per vierkante meter C/m2 C m-2 C·m-2 electric flux density unit volt second volt seconde V s V·s magnetic flux unit weber weber The weber is a unit of magnetic flux defined as kilogram times square metre divided by second squared times ampere = volt times second = joule divided by ampere. The weber is a unit of magnetic flux defined as kilogram times square metre divided by second squared times ampere = volt times second = joule divided by ampere. The weber is a derived unit in the International System of Units. Wb yoctoweber yoctoweber yWb zeptoweber zeptoweber zWb attoweber attoweber aWb femtoweber femtoweber fWb picoweber picoweber pWb nanoweber nanoweber nWb microweber microweber μWb milliweber milliweber mWb centiweber centiweber cWb deciweber deciweber dWb decaweber decaweber daWb hectoweber hectoweber hWb kiloweber kiloweber kWb megaweber megaweber MWb gigaweber gigaweber GWb teraweber teraweber TWb petaweber petaweber PWb exaweber exaweber EWb zettaweber zettaweber ZWb yottaweber yottaweber YWb prefixed weber 1 1 maxwell maxwell The maxwell is a unit of magnetic flux defined as 1.0e-8 weber. Mx 0.000000010 statweber statweber The statweber is a unit of magnetic flux defined as 2.9979e2 weber. statWb 299.79 unit pole The unit pole is a unit of magnetic flux defined as 1.256637e-7 weber. 0.0000001256637 ampere per metre ampère per meter Ampere per metre is a unit of magnetic field defined as ampere divided by metre. Ampere per metre is a unit of magnetic field defined as ampere divided by metre. Ampere per metre is a derived unit in the International System of Units. A/m A m-1 A·m-1 magnetic field unit oersted The oersted is a unit of magnetic field defined as 7.957747e1 ampere per metre. Oe 79.57747 weber per square metre weber per vierkante meter Wb/m2 Wb m-2 Wb·m-2 magnetic flux density unit tesla tesla The tesla is a unit of magnetic flux density defined as volt times second divided by square metre = newton divided by ampere times metre = weber divided by square metre = kilogram divided by coulomb times second = kilogram divided by ampere times second squared. The tesla is a unit of magnetic flux density defined as volt times second divided by square metre = newton divided by ampere times metre = weber divided by square metre = kilogram divided by coulomb times second = kilogram divided by ampere times second squared. The tesla is a derived unit in the International System of Units. T yoctotesla yoctotesla yT zeptotesla zeptotesla zT attotesla attotesla aT femtotesla femtotesla fT picotesla picotesla pT nanotesla nanotesla nT microtesla microtesla μT millitesla millitesla mT centitesla centitesla cT decitesla decitesla dT decatesla decatesla daT hectotesla hectotesla hT kilotesla kilotesla kT megatesla megatesla MT gigatesla gigatesla GT teratesla teratesla TT petatesla petatesla PT exatesla exatesla ET zettatesla zettatesla ZT yottatesla yottatesla YT prefixed tesla 1 1 gamma gamma The gamma is a unit of magnetic flux density defined as 1.0e-9 tesla. \gammaUnit γ 0.0000000010 gauss gauss abtesla abtesla The gauss is a unit of magnetic flux density defined as 1.0e-4 tesla. G Gs 0.00010 milligauss milligauss The milligauss is a unit of magnetic flux density defined as 1.0e-3 gauss. mG stattesla stattesla The stattesla is a unit of magnetic flux density defined as 2.9979e6 tesla. statT 2997900 weber per ampere weber per ampère Wb/A Wb A-1 Wb·A-1 inductance unit permeance (electromagnetic) unit henry henry The henry is a unit of inductance defined as square metre times kilogram divided by second squared times ampere squared = weber divided by ampere = volt second divided by ampere = (joule divided by coulomb) times second divided by (coulomb divided by second) = joule times second squared divided by coulomb squared = square metre times kilogram divided by coulomb squared. The henry is a unit of inductance defined as square metre times kilogram divided by second squared times ampere squared = weber divided by ampere = volt second divided by ampere = (joule divided by coulomb) times second divided by (coulomb divided by second) = joule times second squared divided by coulomb squared = square metre times kilogram divided by coulomb squared. The henry is a derived unit in the International System of Units. H yoctohenry yoctohenry The yoctohenry is a unit of inductance defined as 1.0e-24 henry. yH zeptohenry zeptohenry The zepthenry is a unit of inductance defined as 1.0e-21 henry. zH attohenry attohenry The attohenry is a unit of inductance defined as 1.0e-18 henry. aH femtohenry femtohenry The femtohenry is a unit of inductance defined as 1.0e-15 henry. fH picohenry picohenry The picohenry is a unit of inductance defined as 1.0e-12 henry. pH nanohenry nanohenry The nanohenry is a unit of inductance defined as 1.0e-9 henry. nH microhenry microhenry The microhenry is a unit of inductance defined as 1.0e-6 henry. μH millihenry millihenry The millihenry is a unit of inductance defined as 1.0e-3 henry. mH centihenry centihenry The centihenry is a unit of inductance defined as 1.0e-2 henry. cH decihenry decihenry The decihenry is a unit of inductance defined as 1.0e-1 henry. dH decahenry decahenry The decahenry is a unit of inductance defined as 1.0e1 henry. daH hectohenry hectohenry The hectohenry is a unit of inductance defined as 1.0e2 henry. hH kilohenry kilohenry The kilohenry is a unit of inductance defined as 1.0e3 henry. kH megahenry megahenry The megahenry is a unit of inductance defined as 1.0e6 henry. MH gigahenry gigahenry The gigahenry is a unit of inductance defined as 1.0e9 henry. GH terahenry terahenry The terahenry is a unit of inductance defined as 1.0e12 henry. TH petahenry petahenry The petahenry is a unit of inductance defined as 1.0e15 henry. PH exahenry exahenry The exahenry is a unit of inductance defined as 1.0e18 henry. EH zettahenry zettahenry The zettahenry is a unit of inductance defined as 1.0e21 henry. ZH yottahenry yottahenry The yottahenry is a unit of inductance defined as 1.0e24 henry. YH prefixed henry 1 1 abhenry abhenry The abhenry is a unit of inductance defined as 1.0e-9 henry. abH 0.0000000010 stathenry stathenry The stathenry is a unit of inductance defined as 8.987552e11 henry. statH 898755200000 henry per metre henry per meter H/m H m-1 H·m-1 permeability of free space unit farad per metre farad per meter F/m F m-1 F·m-1 permittivity unit coulomb metre coulomb meter C m C·m electric dipole moment unit debye debye D The debye is a unit of electric dipole moment defined as 3.33564e-30 coulomb metre. 0.00000000000000000000000000000333564 reciprocal henry omgekeerde henry H-1 -1 reluctance unit ohm metre ohm meter Ω m Ω·m electrical resistivity unit siemens per metre siemens per meter S/m S m-1 S·m-1 electrical conductivity unit electric current dimension I 0 0 0 1 0 0 0 current density dimension -2 0 0 1 0 0 0 electric charge dimension 0 0 1 1 0 0 0 electric potential dimension 2 1 -3 -1 0 0 0 capacitance dimension -2 -1 4 2 0 0 0 electrical resistance dimension 2 1 -3 -2 0 0 0 electrical conductance dimension -2 -1 3 2 0 0 0 electric field dimension 1 1 -3 -1 0 0 0 electric charge density dimension -3 0 1 1 0 0 0 electric flux density dimension -2 0 1 1 0 0 0 magnetic flux dimension 2 1 -2 -1 0 0 0 magnetic field dimension -1 0 0 1 0 0 0 magnetic flux density dimension 0 1 -2 -1 0 0 0 inductance or permeance (electromagnetic) dimension 2 1 -2 -2 0 0 0 permeability of free space dimension 1 1 -2 -2 0 0 0 permittivity dimension -3 -1 4 2 0 0 0 electric dipole moment dimension 1 0 1 1 0 0 0 reluctance dimension -2 -1 2 2 0 0 0 electrical resistivity dimension 3 1 -3 -2 0 0 0 electrical conductivity dimension -3 -1 3 2 0 0 0 fluid mechanics vloeistofmechanica contact angle wetting angle stress mechanische spanning Stress is a force that produces or tends to produce deformation in a body measured by the force applied per unit area. σ compressive stress Compressive stress is a stress that, when applied, acts towards the center of a material. normal stress normaalspanning shear stress schuifspanning Shear stress is a stress that is applied parallel or tangential to a face of a material. τ stress tensor mechanische-spanningstensor τ_ij shear rate S strain vervorming ε γ strain unit linear strain lineaire vervorming e volume strain bulk strain θ normal strain normaalvervorming shear strain schuifvervorming Shear strain is a strain that acts parallel to the surface of a material that it acts on. strain tensor vervormingstensor rektensor ε_ij dynamic modulus E shear modulus schuifmodulus Shear modulus is the ratio of shear stress to shear strain. G S μ storage modulus E' shear storage modulus G' loss modulus E'' shear loss modulus G'' bulk modulus compressiemodulus Bulk modulus is a substance's resistance to uniform compression. K κ modulus of elasticity elasticiteitsmodulus Young's modulus E Y elasticity tensor elasticiteitstensor stiffness tensor c_ijkl surface tension oppervlaktespanning Surface tension is an attractive property of the surface of a liquid. γ σ surface tension dimension oppervlaktespanningdimensie 0 1 -2 0 0 0 0 fluid mechanics dimensionless numbers vloeistofmechanica dimensieloze getallen Alfvén number Al Alfvén number unit Cowling number second Cowling number Co Co2 Cowling number unit Euler number getal van Euler The Euler number is a dimensionless number that expresses the relationship between a local pressure drop e.g. over a restriction and the kinetic energy per unit volume. Eu Euler number unit first Cowling number Co_1 first Cowling number unit Fourier number getal van Fourier The Fourier number is a dimensionless number that characterises heat conduction. It is the ratio of heat conduction rate to rate of thermal energy storage. The Fourier number is a dimensionless time. Fo Fourier number unit Fourier number for mass transfer Fo* Fourier number for mass transfer unit Froude number getal van Froude The Froude number is a dimensionless number that compares inertial and gravitational forces. It may be used to quantify the resistance of an object moving through water, and compare objects of different sizes. Fr Froude number unit Grashof number getal van Grashof The Grashof number is a dimensionless number that approximates the ratio of buoyancy to viscous force that acts on a fluid. Gr Grashof number unit Grashof number for mass transfer Gr* Grashof number for mass transfer unit Hartmann number getal van Hartmann Ha Hartmann number unit Knudsen number getal van Knudsen The Knudsen number is a dimensionless number defined as the ratio of the molecular mean free path length to a representative physical length scale. Kn Knudsen number unit Lewis number getal van Lewis The Lewis number is a dimensionless number defined as the ratio of thermal diffusivity to mass diffusivity. Le Lewis number unit Mach number Machgetal The Mach number is the speed of an object that moves through air, or any fluid substance, divided by the speed of sound as it is in that substance. Ma Mach number unit magnetic Reynolds number magnetisch getal van Reynolds Rm magnetic Reynolds number unit Nusselt number getal van Nusselt The Nusselt number is the ratio of convective to conductive heat transfer across (normal to) the boundary. Nu Nusselt number unit Nusselt number for mass transfer Nu* Nusselt number for mass transfer unit Péclet number getal van Péclet The Péclet number is a dimensionless number that relates the rate of advection of a flow to its rate of diffusion, often thermal diffusion. Pe Péclet number unit Péclet number for mass transfer Pe* Péclet number for mass transfer unit Prandtl number getal van Prandtl Pr Prandtl number unit Rayleigh number getal van Rayleigh The Rayleigh number for a fluid is a dimensionless number associated with buoyancy driven flow. Ra Rayleigh number unit Reynolds number getal van Reynolds The Reynolds number is a dimensionless number that gives a measure of the ratio of inertial forces to viscous forces and, consequently, quantifies the relative importance of these two types of forces for given flow conditions. Re Reynolds number unit Schmidt number getal van Schmidt Sc Schmidt number unit Stanton number getal van Stanton The Stanton number is a dimensionless number that measures the ratio of heat transferred into a fluid to the thermal capacity of fluid. St Stanton number unit Stanton number for mass transfer St* Stanton number for mass transfer unit Strouhal number getal van Strouhal The Strouhal number is a dimensionless number that describes oscillating flow mechanisms. Sr Strouhal number unit Weber number getal van Weber We Weber number unit chemical physics fysische chemie amount of substance stofhoeveelheid Amount of substance is the number of elementary entities such as atoms, molecules, electrons, particles, etc. present in a phenomenon. It is a base quantity in the International System of Units. n amount of substance concentration molar concentration molaire concentratie C amount of substance fraction amount-of-substance fraction mole fraction molfractie x y molar energy molaire energie resonance energy molar entropy molaire entropie molar heat capacity molaire warmtecapaciteit gas constant gasconstante universal gas constant universele gasconstante R amount of substance flow amount-of-substance flow molar flow molality molaliteit molality of solution Molality is the number of moles of solute per kilogram of solvent. b m molar mass molaire massa M molar volume molair volume V_m amount of substance fraction flow amount-of-substance fraction flow mole fraction flow mole mol mol system that contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 122 amount of substance of a system that contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12 The mole is a unit of amount of substance defined as the amount of substance of a system that contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12. The mole is a unit of amount of substance defined as the amount of substance of a system that contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12. The mole is a base unit in the International System of Units. amount of substance unit yoctomole yoctomol ymol zeptomole zeptomol zmol attomole attomol amol femtomole femtomol fmol picomole picomol pmol nanomole nanomol nmol micromole micromol μmol millimole millimol mmol centimole centimol cmol decimole decimol dmol decamole decamol damol hectomole hectomol hmol kilomole kilomol kmol megamole megamol Mmol gigamole gigamol Gmol teramole teramol Tmol petamole petamol Pmol examole examol Emol zettamole zettamol Zmol yottamole yottamol Ymol prefixed mole 1 1 mole per cubic metre mol per kubieke meter Mole per cubic metre is a unit of amount of substance concentration defined as mole divided by cubic metre. Mole per cubic metre is a unit of amount of substance concentration defined as mole divided by cubic metre. Mole per cubic metre is a derived unit in the International System of Units. mol/m3 mol m-3 mol·m-3 amount of substance concentration unit mole per litre mole per liter Mole per litre is a unit of amount of substance concentration defined as mole divided by litre. Mole per litre is a unit of amount of substance concentration defined as mole divided by litre. Mole per litre is a derived unit in the International System of Units. mol/l mol l-1 mol·l-1 yoctomole per litre yoctomole per liter Yoctomole per litre is a unit of amount of substance concentration defined as yoctomole divided by litre. ymol/l ymol l-1 ymol·l-1 zeptomole per litre zeptomole per liter Zeptomole per litre is a unit of amount of substance concentration defined as zeptomole divided by litre. zmol/l zmol l-1 zmol·l-1 attomole per litre attomole per liter Attomole per litre is a unit of amount of substance concentration defined as attomole divided by litre. amol/l amol l-1 amol·l-1 femtomole per litre femtomole per liter Femtomole per litre is a unit of amount of substance concentration defined as femtomole divided by litre. fmol/l fm s-1 fm·s-1 picomole per litre picomole per liter Picomole per litre is a unit of amount of substance concentration defined as picomole divided by litre. pmol/l pmol l-1 pmol·l-1 nanomole per litre nanomole per liter Nanomole per litre is a unit of amount of substance concentration defined as nanomole divided by litre. nmol/l nmol l-1 nmol·l-1 micromole per litre micromole per liter Micromole per litre is a unit of amount of substance concentration defined as micromole divided by litre. μmol/l μmol l-1 μmol·l-1 millimole per litre millimole per liter Millimole per litre is a unit of amount of substance concentration defined as millimole divided by litre. mmol/l mmol l-1 mmol·l-1 centimole per litre centimole per liter Centimole per litre is a unit of amount of substance concentration defined as centimole divided by litre. cmol/l cmol l-1 cmol·l-1 decimole per litre decimole per liter Decimole per litre is a unit of amount of substance concentration defined as decimole divided by litre. dmol/l dmol l-1 dmol·l-1 decamole per litre decamole per liter Decamole per litre is a unit of amount of substance concentration defined as decamole divided by litre. damol/l damol l-1 damol·l-1 hectomole per litre hectomole per liter Hectomole per litre is a unit of amount of substance concentration defined as hectomole divided by litre. hmol/l hmol l-1 hmol·l-1 kilomole per litre kilomole per liter Kilomole per litre is a unit of amount of substance concentration defined as kilomole divided by litre. kmol/l kmol l-1 kmol·l-1 megamole per litre megamole per liter Megamole per litre is a unit of amount of substance concentration defined as megamole divided by litre. Mmol/l Mmol l-1 Mmol·l-1 gigamole per litre gigamole per liter Gigamole per litre is a unit of amount of substance concentration defined as gigamole divided by litre. Gmol/l Gmol l-1 Gmol·l-1 teramole per litre teramole per liter Teramole per litre is a unit of amount of substance concentration defined as teramole divided by litre. Tmol/l Tmol l-1 Tmol·l-1 petamole per litre petamole per liter Petamole per litre is a unit of amount of substance concentration defined as petamole divided by litre. Pmol/l Pmol l-1 Pmol·l-1 examole per litre examole per liter Examole per litre is a unit of amount of substance concentration defined as examole divided by litre. Emol/l Emol l-1 Emol·l-1 zettamole per litre zettamole per liter Zettamole per litre is a unit of amount of substance concentration defined as zettamole divided by litre. Zmol/l Zmol l-1 Zmol·l-1 yottamole per litre yottamole per liter Yottamole per litre is a unit of amount of substance concentration defined as yottamole divided by litre. Ymol/l Ymol l-1 Ymol·l-1 mole per yoctolitre mole per yoctoliter Mole per yoctolitre is a unit of amount of substance concentration defined as mole divided by yoctolitre. mol/yl mol yl-1 mol·yl-1 mole per zeptolitre mole per zeptoliter Mole per zeptolitre is a unit of amount of substance concentration defined as mole divided by zeptolitre. mol/zl mol zl-1 mol·zl-1 mole per attolitre mole per attoliter Mole per attolitre is a unit of amount of substance concentration defined as mole divided by attolitre. mol/al mol al-1 mol·al-1 mole per femtolitre mole per femtoliter Mole per femtolitre is a unit of amount of substance concentration defined as mole divided by femtolitre. mol/fl mol fl-1 mol·fl-1 mole per picolitre mole per picoliter Mole per picolitre is a unit of amount of substance concentration defined as mole divided by picolitre. mol/pl mol pl-1 mol·pl-1 mole per nanolitre mole per nanoliter Mole per nanolitre is a unit of amount of substance concentration defined as mole divided by nanolitre. mol/nl mol nl-1 mol·nl-1 mole per microlitre mole per microliter Mole per microlitre is a unit of amount of substance concentration defined as mole divided by microlitre. mol/μl mol μl-1 mol·μl-1 mole per millilitre mole per milliliter Mole per millilitre is a unit of amount of substance concentration defined as mole divided by millilitre. mol/ml mol ml-1 mol·ml-1 mole per centilitre mole per centiliter Mole per centilitre is a unit of amount of substance concentration defined as mole divided by centilitre. mol/cl mol cl-1 mol·cl-1 mole per decilitre mole per deciliter Mole per decilitre is a unit of amount of substance concentration defined as mole divided by decilitre. mol/dl mol dl-1 mol·dl-1 mole per decalitre mole per decaliter Mole per decalitre is a unit of amount of substance concentration defined as mole divided by decalitre. mol/dal mol dal-1 mol·dal-1 mole per hectolitre mole per hectoliter Mole per hectolitre is a unit of amount of substance concentration defined as mole divided by hectolitre. mol/hl mol hl-1 mol·hl-1 mole per kilolitre mole per kiloliter Mole per kilolitre is a unit of amount of substance concentration defined as mole divided by kilolitre. mol/kl mol kl-1 mol·kl-1 mole per megalitre mole per megaliter Mole per megalitre is a unit of amount of substance concentration defined as mole divided by megalitre. mol/Ml mol Ml-1 mol·Ml-1 mole per gigalitre mole per gigaliter Mole per gigalitre is a unit of amount of substance concentration defined as mole divided by gigalitre. mol/Gl mol Gl-1 mol·Gl-1 mole per teralitre mole per teraliter Mole per teralitre is a unit of amount of substance concentration defined as mole divided by teralitre. mol/Tl mol Tl-1 mol·Tl-1 mole per petalitre mole per petaliter Mole per petalitre is a unit of amount of substance concentration defined as mole divided by petalitre. mol/Pl mol Pl-1 mol·Pl-1 mole per exalitre mole per exaliter Mole per exalitre is a unit of amount of substance concentration defined as mole divided by exalitre. mol/El mol El-1 mol·El-1 mole per zettalitre mole per zettaliter Mole per zettalitre is a unit of amount of substance concentration defined as mole divided by zettalitre. mol/Zl mol Zl-1 mol·Zl-1 mole per yottalitre mole per yottaliter Mole per yottalitre is a unit of amount of substance concentration defined as mole divided by yottalitre. mol/Yl mol Yl-1 mol·Yl-1 prefixed mole per litre 1 1 mole per prefixed litre 1 1 prefixed mole per prefixed litre 1 1 molar molair Molar is a unit of amount of substance concentration defined as 1 mole per litre. M yoctomolar yoctomolair The yoctomolar is a unit of amount of substance concentration defined as 1.0e-24 molar. yM zeptomolar zeptomolair The zeptmolar is a unit of amount of substance concentration defined as 1.0e-21 molar. zM attomolar attomolair The attomolar is a unit of amount of substance concentration defined as 1.0e-18 molar. aM femtomolar femtomolair The femtomolar is a unit of amount of substance concentration defined as 1.0e-15 molar. fM picomolar picomolair The picomolar is a unit of amount of substance concentration defined as 1.0e-12 molar. pM nanomolar nanomolair The nanomolar is a unit of amount of substance concentration defined as 1.0e-9 molar. nM micromolar micromolair The micromolar is a unit of amount of substance concentration defined as 1.0e-6 molar. μM millimolar millimolair The millimolar is a unit of amount of substance concentration defined as 1.0e-3 molar. mM centimolar centimolair The centimolar is a unit of amount of substance concentration defined as 1.0e-2 molar. cM decimolar decimolair The decimolar is a unit of amount of substance concentration defined as 1.0e-1 molar. dM decamolar decamolair The decamolar is a unit of amount of substance concentration defined as 1.0e1 molar. daM hectomolar hectomolair The hectomolar is a unit of amount of substance concentration defined as 1.0e2 molar. hM kilomolar kilomolair The kilomolar is a unit of amount of substance concentration defined as 1.0e3 molar. kM megamolar megamolair The megamolar is a unit of amount of substance concentration defined as 1.0e6 molar. MM gigamolar gigamolair The gigamolar is a unit of amount of substance concentration defined as 1.0e9 molar. GM teramolar teramolair The teramolar is a unit of amount of substance concentration defined as 1.0e12 molar. TM petamolar petamolair The petamolar is a unit of amount of substance concentration defined as 1.0e15 molar. PM examolar examolair The examolar is a unit of amount of substance concentration defined as 1.0e18 molar. EM zettamolar zettamolair The zettamolar is a unit of amount of substance concentration defined as 1.0e21 molar. ZM yottamolar yottamolair The yottamolar is a unit of amount of substance concentration defined as 1.0e24 molar. YM prefixed molar 1 1 mole per mole mol per mol mol/mol mol mol-1 mol·mol-1 micromole per mole micromol per mol μmol/mol μmol mol-1 μmol·mol-1 amount of substance fraction unit joule per mole joule per mol J/mol J mol-1 J·mol-1 molar energy unit joule per kelvin mole joule per kelvin mol J/(K mol) J/(K·mol) J K-1 mol-1 J·K-1·mol-1 molar entropy unit molar heat capacity unit gas constant unit mole per kilogram mol per kilogram mol/kg mol kg-1 mol·kg-1 molality unit kilogram per mole kilogram per mol kg/mol kg mol-1 kg·mol-1 molar mass unit cubic metre per mole kubieke meter per mol m3/mol m3 mol-1 m3·mol-1 molar volume unit litre per mole liter per mol l/mol l mol-1 l·mol-1 mole micrometre mol micrometer mol μm mol·μm mole micrometre reciprocal square centimetre mol micrometer omgekeerde vierkante centimeter mol μm cm-2 mol·μm·cm-2 mole micrometre reciprocal square centimetre reciprocal second mol micrometer omgekeerde vierkante centimeter omgekeerde seconde mol μm cm-2 s-1 mol·μm·cm-2·s-1 mole per metre mole per meter mol/m mol m-1 mol·m-1 yoctomole per metre yoctomole per meter ymol/m ymol m-1 ymol·m-1 zeptomole per metre zeptomole per meter zmol/m zmol m-1 zmol·m-1 attomole per metre attomole per meter amol/m amol m-1 amol·m-1 femtomole per metre femtomole per meter fmol/m fm s-1 fm·s-1 picomole per metre picomole per meter pmol/m pmol m-1 pmol·m-1 nanomole per metre nanomole per meter nmol/m nmol m-1 nmol·m-1 micromole per metre micromole per meter μmol/m μmol m-1 μmol·m-1 millimole per metre millimole per meter mmol/m mmol m-1 mmol·m-1 centimole per metre centimole per meter cmol/m cmol m-1 cmol·m-1 decimole per metre decimole per meter dmol/m dmol m-1 dmol·m-1 decamole per metre decamole per meter damol/m damol m-1 damol·m-1 hectomole per metre hectomole per meter hmol/m hmol m-1 hmol·m-1 kilomole per metre kilomole per meter kmol/m kmol m-1 kmol·m-1 megamole per metre megamole per meter Mmol/m Mmol m-1 Mmol·m-1 gigamole per metre gigamole per meter Gmol/m Gmol m-1 Gmol·m-1 teramole per metre teramole per meter Tmol/m Tmol m-1 Tmol·m-1 petamole per metre petamole per meter Pmol/m Pmol m-1 Pmol·m-1 examole per metre examole per meter Emol/m Emol m-1 Emol·m-1 zettamole per metre zettamole per meter Zmol/m Zmol m-1 Zmol·m-1 yottamole per metre yottamole per meter Ymol/m Ymol m-1 Ymol·m-1 mole per yoctometre mole per yoctometer mol/ym mol ym-1 mol·ym-1 mole per zeptometre mole per zeptometer mol/zm mol zm-1 mol·zm-1 mole per attometre mole per attometer mol/am mol am-1 mol·am-1 mole per femtometre mole per femtometer mol/fm mol fm-1 mol·fm-1 mole per picometre mole per picometer mol/pm mol pm-1 mol·pm-1 mole per nanometre mole per nanometer mol/nm mol nm-1 mol·nm-1 mole per micrometre mole per micrometer mol/μm mol μm-1 mol·μm-1 mole per millimetre mole per millimeter mol/mm mol mm-1 mol·mm-1 mole per centimetre mole per centimeter mol/cm mol cm-1 mol·cm-1 mole per decimetre mole per decimeter mol/dm mol dm-1 mol·dm-1 mole per decametre mole per decameter mol/dam mol dam-1 mol·dam-1 mole per hectometre mole per hectometer mol/hm mol hm-1 mol·hm-1 mole per kilometre mole per kilometer mol/km mol km-1 mol·km-1 mole per megametre mole per megameter mol/Mm mol Mm-1 mol·Mm-1 mole per gigametre mole per gigameter mol/Gm mol Gm-1 mol·Gm-1 mole per terametre mole per terameter mol/Tm mol Tm-1 mol·Tm-1 mole per petametre mole per petameter mol/Pm mol Pm-1 mol·Pm-1 mole per exametre mole per exameter mol/Em mol Em-1 mol·Em-1 mole per zettametre mole per zettameter mol/Zm mol Zm-1 mol·Zm-1 mole per yottametre mole per yottameter mol/Ym mol Ym-1 mol·Ym-1 prefixed mole per metre 1 1 mole per prefixed metre 1 1 prefixed mole per prefixed metre 1 1 kelvin mole kelvin mol K mol K·mol micromole per second gram μmol/(s g) μmol s-1 g-1 μmol·s-1·g-1 nanomole per hour nmol/h nmol h-1 nmol·h-1 nanomole per hour millilitre nmol/(h ml) nmol h-1 ml-1 nmol·h-1·ml-1 amount of substance dimension stofhoeveelheiddimensie N 0 0 0 0 0 1 0 amount of substance concentration dimension -3 0 0 0 0 1 0 molar energy dimension molaire-energiedimensie 2 1 -2 0 0 -1 0 molar entropy, molar heat capacity, or gas constant dimension 2 1 -2 0 -1 -1 0 chemistry chemie collision frequency Collision frequency is the average number of collisions between reacting molecules per unit time. ν_coll ν_c catalytic activity catalytic activity concentration catalytic concentration specific catalytic activity specific amylase activity specific protease activity acidity pH amphiphilicity amfifiliciteit hydrophilicity hydrofiliciteit hydrophobicity hydrofobiciteit lipophilicity lipofiliciteit salt strength zoutsterkte mole per second mol per seconde mol/s mol s-1 mol·s-1 micromole per second micromol per seconde μmol/s μmol s-1 μmol·s-1 amount of substance flow unit catalytic activity unit katal katal The katal is a unit of catalytic activity defined as mole divided by second. The katal is a unit of catalytic activity defined as mole divided by second. The katal is a derived unit in the International System of Units. kat yoctokatal yoctokatal The yoctokatal is a unit of catalytic activity defined as 1.0e-24 katal. ykat zeptokatal zeptokatal The zeptkatal is a unit of catalytic activity defined as 1.0e-21 katal. zkat attokatal attokatal The attokatal is a unit of catalytic activity defined as 1.0e-18 katal. akat femtokatal femtokatal The femtokatal is a unit of catalytic activity defined as 1.0e-15 katal. fkat picokatal picokatal The picokatal is a unit of catalytic activity defined as 1.0e-12 katal. pkat nanokatal nanokatal The nanokatal is a unit of catalytic activity defined as 1.0e-9 katal. nkat microkatal microkatal The microkatal is a unit of catalytic activity defined as 1.0e-6 katal. μkat millikatal millikatal The millikatal is a unit of catalytic activity defined as 1.0e-3 katal. mkat centikatal centikatal The centikatal is a unit of catalytic activity defined as 1.0e-2 katal. ckat decikatal decikatal The decikatal is a unit of catalytic activity defined as 1.0e-1 katal. dkat decakatal decakatal The decakatal is a unit of catalytic activity defined as 1.0e1 katal. dakat hectokatal hectokatal The hectokatal is a unit of catalytic activity defined as 1.0e2 katal. hkat kilokatal kilokatal The kilokatal is a unit of catalytic activity defined as 1.0e3 katal. kkat megakatal megakatal The megakatal is a unit of catalytic activity defined as 1.0e6 katal. Mkat gigakatal gigakatal The gigakatal is a unit of catalytic activity defined as 1.0e9 katal. Gkat terakatal terakatal The terakatal is a unit of catalytic activity defined as 1.0e12 katal. Tkat petakatal petakatal The petakatal is a unit of catalytic activity defined as 1.0e15 katal. Pkat exakatal exakatal The exakatal is a unit of catalytic activity defined as 1.0e18 katal. Ekat zettakatal zettakatal The zettakatal is a unit of catalytic activity defined as 1.0e21 katal. Zkat yottakatal yottakatal The yottakatal is a unit of catalytic activity defined as 1.0e24 katal. Ykat prefixed katal 1 1 amylase unit The amylase unit is a unit of catalytic activity. AU U delta A450 delta A450 per second delta A450 per seconde katal per cubic metre katal per kubieke meter kat/m3 kat m-3 kat·m-3 catalytic activity concentration unit nanokatal per milligram nanokatal per milligram nkat/mg nkat mg-1 nkat·mg-1 delta A450 per second per milligram delta A450 per seconde per milligram specific catalytic activity unit catalytic activity dimension 0 0 -1 0 0 1 0 catalytic activity concentration dimension -3 0 -1 0 0 1 0 specific catalytic activity dimension 0 -2 -1 0 0 1 0 photometry fotometrie luminous intensity lichtsterkte Luminous intensity is the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle. It is a base quantity in the International System of Units. Luminous intensity is luminous flux divided by solid angle. I I_v luminance Luminous flux is the total visible energy emitted by a source per unit time. L L_v luminous flux Luminous flux is the total visible energy emitted by a source per unit time. F luminous energy F illuminance illumination Illuminance is the total luminous flux incident on a surface per unit area. Φ Φ_v exposure luminous efficacy candela candela 坎德拉 cd luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540e12 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian The candela is a unit of luminous intensity defined as the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540e12 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian. The candela is a unit of luminous intensity defined as the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540e12 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian. The candela is a base unit in the International System of Units. luminous intensity unit yoctocandela yoctocandela The yoctocandela is a unit of luminous intensity defined as 1.0e-24 candela. ycd zeptocandela zeptocandela The zeptcandela is a unit of luminous intensity defined as 1.0e-21 candela. zcd attocandela attocandela The attocandela is a unit of luminous intensity defined as 1.0e-18 candela. acd femtocandela femtocandela The femtocandela is a unit of luminous intensity defined as 1.0e-15 candela. fcd picocandela picocandela The picocandela is a unit of luminous intensity defined as 1.0e-12 candela. pcd nanocandela nanocandela The nanocandela is a unit of luminous intensity defined as 1.0e-9 candela. ncd microcandela microcandela The microcandela is a unit of luminous intensity defined as 1.0e-6 candela. μcd millicandela millicandela The millicandela is a unit of luminous intensity defined as 1.0e-3 candela. mcd centicandela centicandela The centicandela is a unit of luminous intensity defined as 1.0e-2 candela. ccd decicandela decicandela The decicandela is a unit of luminous intensity defined as 1.0e-1 candela. dcd decacandela decacandela The decacandela is a unit of luminous intensity defined as 1.0e1 candela. dacd hectocandela hectocandela The hectocandela is a unit of luminous intensity defined as 1.0e2 candela. hcd kilocandela kilocandela The kilocandela is a unit of luminous intensity defined as 1.0e3 candela. kcd megacandela megacandela The megacandela is a unit of luminous intensity defined as 1.0e6 candela. Mcd gigacandela gigacandela The gigacandela is a unit of luminous intensity defined as 1.0e9 candela. Gcd teracandela teracandela The teracandela is a unit of luminous intensity defined as 1.0e12 candela. Tcd petacandela petacandela The petacandela is a unit of luminous intensity defined as 1.0e15 candela. Pcd exacandela exacandela The exacandela is a unit of luminous intensity defined as 1.0e18 candela. Ecd zettacandela zettacandela The zettacandela is a unit of luminous intensity defined as 1.0e21 candela. Zcd yottacandela yottacandela The yottacandela is a unit of luminous intensity defined as 1.0e24 candela. Ycd prefixed candela 1 1 candela per square metre candela per vierkante meter Candela per square metre is a unit of luminance defined as candela divided by square metre. Candela per square metre is a unit of luminance defined as candela divided by square metre. Candela per square metre is a derived unit in the Internationa; System of Units. cd/m2 cd m-2 cd·m-2 luminance unit candela per square centimetre candela per vierkante centimeter cd/cm2 cd cm-2 cd·cm-2 footlambert The footlambert is a unit of luminance defined as 3.426259 candela per square metre. 3.426259 lambert lambert The lambert is a unit of luminance defined as 3.183099e3 candela per square metre. 3183.099 stilb stilb The stilb is a unit of luminance defined as 1.0e4 candela per square metre. sb 10000 candela steradian candela steradiaal cd sr cd·sr luminous flux unit lumen lumen The lumen is a unit of luminous flux defined as candela times steradian = lux times square metre. The lumen is a unit of luminous flux defined as candela times steradian = lux times square metre. The lumen is a derived unit in the International System of Units. lm yoctolumen yoctolumen ylm zeptolumen zeptolumen zlm attolumen attolumen alm femtolumen femtolumen flm picolumen picolumen plm nanolumen nanolumen nlm microlumen microlumen μlm millilumen millilumen mlm centilumen centilumen clm decilumen decilumen dlm decalumen decalumen dalm hectolumen hectolumen hlm kilolumen kilolumen klm megalumen megalumen Mlm gigalumen gigalumen Glm teralumen teralumen Tlm petalumen petalumen Plm exalumen exalumen Elm zettalumen zettalumen Zlm yottalumen yottalumen Ylm prefixed lumen 1 1 lumen second lumen seconde lm s lm·s luminous energy unit lumen per square metre lumen per vierkante meter lm/m2 lm m-2 lm·m-2 illuminance unit lux lux The lux is a unit of illuminance defined as lumen divided by square metre = candela times steradian divided by square metre. The lux is a unit of illuminance defined as lumen divided by square metre = candela times steradian divided by square metre. The lux is a derived unit in the International System of Units. lx yoctolux yoctolux ylx zeptolux zeptolux zlx attolux attolux alx femtolux femtolux flx picolux picolux plx nanolux nanolux nlx microlux microlux μlx millilux millilux mlx centilux centilux clx decilux decilux dlx decalux decalux dalx hectolux hectolux hlx kilolux kilolux klx megalux megalux Mlx gigalux gigalux Glx teralux teralux Tlx petalux petalux Plx exalux exalux Elx zettalux zettalux Zlx yottalux yottalux Ylx prefixed lux 1 1 footcandle The footcandle is a unit of illuminance defined as 1.076391e1 lux. 10.76391 phot phot The phot is a unit of illuminance defined as 1.0e4 lux. ph 10000 lux second lux seconde lx s lx·s exposure unit lumen per watt lumen per watt lm/W lm W-1 lm·W-1 luminous efficacy unit luminous intensity dimension lichtsterktedimensie J 0 0 0 0 0 0 1 luminance dimension -2 0 0 0 0 0 1 luminous flux dimension 0 0 0 0 0 0 1 luminous energy dimension 0 0 1 0 0 0 1 illuminance dimension -2 0 0 0 0 0 1 exposure dimension -2 0 1 0 0 0 1 luminous efficacy dimension -2 -1 3 0 0 0 1 radiometry and radiobiology radiometrie en radiobiologie absorbed dose total ionizing dose Absorbed dose is the energy deposited in a medium by ionizing radiation. It is a derived quantity in the International System of Units. Absorbed dose is energy divided by mass. absorbed dose unit kerma specific energy imparted specific energy (imparted) dose equivalent Dose equivalent is a measure of the radiation dose to tissue where an attempt has been made to allow for the different relative biological effects of different types of ionizing radiation. ambient dose equivalent directional dose equivalent organ dose equivalent personal dose equivalent activity activiteit activity (of a radionuclide) activity of a radionuclide Activity is the decay rate of a radioactive substance. It is a derived quantity in the International System of Units. Activity is 1 divided by time. A radiant flux radiant energy flux radiant power Radiant flux is the measure of the total power of electromagnetic radiation. Φ Φ_e P irradiance Irradiance is the power of electromagnetic radiation at a surface per unit area. E E_e radiant intensity I I_e radiance Radiance is a radiometric measure that describes the amount of light that passes through or is emitted from a particular area and falls within a given solid angle in a specified direction. L L_e exposure to x and γ rays exposure to x and gamma rays exposure (to x and γ rays) exposure (to x and gamma rays) exposure absorbed dose rate radiant energy Q Q_e W gray gray The gray is a unit of absorbed dose defined as joule divided by kilogram = square metre divided by second squared. The gray is a unit of absorbed dose defined as joule divided by kilogram = square metre divided by second squared. The gray is a derived unit is the International System of Units. Gy yoctogray yoctogray The yoctogray is a unit of absorbed dose defined as 1.0e-24 gray. yGy zeptogray zeptogray The zeptgray is a unit of absorbed dose defined as 1.0e-21 gray. zGy attogray attogray The attogray is a unit of absorbed dose defined as 1.0e-18 gray. aGy femtogray femtogray The femtogray is a unit of absorbed dose defined as 1.0e-15 gray. fGy picogray picogray The picogray is a unit of absorbed dose defined as 1.0e-12 gray. pGy nanogray nanogray The nanogray is a unit of absorbed dose defined as 1.0e-9 gray. nGy microgray microgray The microgray is a unit of absorbed dose defined as 1.0e-6 gray. μGy milligray milligray The milligray is a unit of absorbed dose defined as 1.0e-3 gray. mGy centigray centigray The centigray is a unit of absorbed dose defined as 1.0e-2 gray. cGy decigray decigray The decigray is a unit of absorbed dose defined as 1.0e-1 gray. dGy decagray decagray The decagray is a unit of absorbed dose defined as 1.0e1 gray. daGy hectogray hectogray The hectogray is a unit of absorbed dose defined as 1.0e2 gray. hGy kilogray kilogray The kilogray is a unit of absorbed dose defined as 1.0e3 gray. kGy megagray megagray The megagray is a unit of absorbed dose defined as 1.0e6 gray. MGy gigagray gigagray The gigagray is a unit of absorbed dose defined as 1.0e9 gray. GGy teragray teragray The teragray is a unit of absorbed dose defined as 1.0e12 gray. TGy petagray petagray The petagray is a unit of absorbed dose defined as 1.0e15 gray. PGy exagray exagray The exagray is a unit of absorbed dose defined as 1.0e18 gray. EGy zettagray zettagray The zettagray is a unit of absorbed dose defined as 1.0e21 gray. ZGy yottagray yottagray The yottagray is a unit of absorbed dose defined as 1.0e24 gray. YGy prefixed gray 1 1 rad rad The rad is a unit of absorbed dose defined as 1.0e-2 gray. rad 0.010 sievert sievert The sievert is a unit of dose equivalent defined as joule divided by kilogram = square metre divided by second squared. The sievert is a unit of dose equivalent defined as joule divided by kilogram = square metre divided by second squared. The sievert is a derived unit is the International System of Units. Sv dose equivalent unit yoctosievert yoctosievert ySv zeptosievert zeptosievert zSv attosievert attosievert aSv femtosievert femtosievert fSv picosievert picosievert pSv nanosievert nanosievert nSv microsievert microsievert μSv millisievert millisievert mSv centisievert centisievert cSv decisievert decisievert dSv decasievert decasievert daSv hectosievert hectosievert hSv kilosievert kilosievert kSv megasievert megasievert MSv gigasievert gigasievert GSv terasievert terasievert TSv petasievert petasievert PSv exasievert exasievert ESv zettasievert zettasievert ZSv yottasievert yottasievert YSv prefixed sievert 1 1 rem rem The rem is a unit of dose equivalent defined as 1.0e-2 sievert. rem 0.010 becquerel becquerel The becquerel is a unit of activity defined as the activity of a quantity of radioactive material in which one nucleus decays per second. Algebraically it is defined as 1 divided by second. The becquerel is a unit of activity defined as the activity of a quantity of radioactive material in which one nucleus decays per second. Algebraically it is defined as 1 divided by second. The becquerel is a derived unit in the International System of Units. Bq activity unit yoctobecquerel yoctobecquerel The yoctobecquerel is a unit of activity defined as 1.0e-24 becquerel. yBq zeptobecquerel zeptobecquerel The zeptbecquerel is a unit of activity defined as 1.0e-21 becquerel. zBq attobecquerel attobecquerel The attobecquerel is a unit of activity defined as 1.0e-18 becquerel. aBq femtobecquerel femtobecquerel The femtobecquerel is a unit of activity defined as 1.0e-15 becquerel. fBq picobecquerel picobecquerel The picobecquerel is a unit of activity defined as 1.0e-12 becquerel. pBq nanobecquerel nanobecquerel The nanobecquerel is a unit of activity defined as 1.0e-9 becquerel. nBq microbecquerel microbecquerel The microbecquerel is a unit of activity defined as 1.0e-6 becquerel. μBq millibecquerel millibecquerel The millibecquerel is a unit of activity defined as 1.0e-3 becquerel. mBq centibecquerel centibecquerel The centibecquerel is a unit of activity defined as 1.0e-2 becquerel. cBq decibecquerel decibecquerel The decibecquerel is a unit of activity defined as 1.0e-1 becquerel. dBq decabecquerel decabecquerel The decabecquerel is a unit of activity defined as 1.0e1 becquerel. daBq hectobecquerel hectobecquerel The hectobecquerel is a unit of activity defined as 1.0e2 becquerel. hBq kilobecquerel kilobecquerel The kilobecquerel is a unit of activity defined as 1.0e3 becquerel. kBq megabecquerel megabecquerel The megabecquerel is a unit of activity defined as 1.0e6 becquerel. MBq gigabecquerel gigabecquerel The gigabecquerel is a unit of activity defined as 1.0e9 becquerel. GBq terabecquerel terabecquerel The terabecquerel is a unit of activity defined as 1.0e12 becquerel. TBq petabecquerel petabecquerel The petabecquerel is a unit of activity defined as 1.0e15 becquerel. PBq exabecquerel exabecquerel The exabecquerel is a unit of activity defined as 1.0e18 becquerel. EBq zettabecquerel zettabecquerel The zettabecquerel is a unit of activity defined as 1.0e21 becquerel. ZBq yottabecquerel yottabecquerel The yottabecquerel is a unit of activity defined as 1.0e24 becquerel. YBq prefixed becquerel 1 1 curie curie The curie is a unit of activity defined as 3.7e10 becquerel. Ci 37000000000 coulomb per kilogram coulomb per kilogram C/kg C kg-1 C·kg-1 röntgen röntgen The röntgen is a unit of exposure to x and γ rays defined as 2.58e-4 coulomb per kilogram. R 0.000258 exposure to x and γ rays unit gray per second gray per seconde Gy/s Gy s-1 Gy·s-1 milligray per second milligray per seconde mGy/s mGy s-1 mGy·s-1 absorbed dose rate unit exposure to x and γ rays dimension 0 -1 1 1 0 0 0 absorbed dose rate dimension 2 0 -3 0 0 0 0 radiance dimension 0 1 -3 0 0 0 0 half-life t_½ T_{\frac{1}{2}} \Halflife t_1/2 T_½ τ_½ astronomy and astrophysics astronomie en astrofysica co-rotation radius The radius (distance from the galaxy's centre) at which the stars move at the same speed as the spiral pattern or bar in a galaxy. r_c cut-off wavelength Either: wavelengths at which the detectivity (D) falls to 0, or the wavelengths at which the detectivity falls to 1% of the peak value, or the wavelengths at which the normalised detectivity (D*) has fallen to half its peak value. λ_c peak wavelength Wavelength for which the detectivity is at a maximum. λ_m scale height The scale height of a feature (such as the thin galactic disk) is the height (or position) at which the number density of the feature (for instance of the number of Population II stars) is equal to 1/e times the number density at the origin (for instance the Galactic Plane). h_z scale length scale radius The radial distance from a galaxy's core at which the average intensity has fallen to 1/e of the intensity at the centre of the galaxy. r epoch epoch at maximum brightness A moment when the object (i.e. a variable star) was at maximum brightness. period of variability The duration of one cycle in a (semi) periodical star. P light time The time electromagnetic radiation takes to reach Earth from a distant source. Often the correction in light time is needed to accurately calculate the apparent position of solar system objects or to calculate the period of variable stars (different times are observed when the Earth is at a different position in its orbit). τ time constant Time required to approach (1-1/e) of the final output value of a detector (about 63%) (Kitchin, Astrophysical Techniques, IoP, Table 1.1.2). τ Jeans mass The critical mass of a molecular cloud, above which it will be unstable to collapse. M_J brightness temperature The temperature that a blackbody would need to have in order to emit radiation of the observed intensity at a given wavelength (mostly used in radio astronomy). colour temperature The temperature of a blackbody that has the same colour index as a given star. electron temperature kinetic temperature The temperature determined by the mean kinetic energy of free electrons in a plasma; also known as kinetic temperature. T_e T_k ionization temperature The temperature of a gas or plasma derived from the relative numbers of neutral atoms and ions. Specifically, it is the temperature for which the Saha equations would predict these relative numbers, assuming the atoms and ions are in thermodynamic equilibrium. T_ion albedo albedo Ratio between radiation falling onto an object and the radiation reflected or scattered back. Or the ratio between the illumination and observed brightness. α normal albedo Ratio between radiation falling vertically onto an object and the radiation radiated back vertically. visual albedo The albedo only for radiation in the visual part of the spectrum. geometrical albedo astronomical albedo physical albedo Ratio between the brightness of an object as seen from the direction of a hypothetical white, diffusely reflecting sphere of the same size and at the same distance. A bond albedo spherical albedo Is the fraction of the total incident solar radiation - the radiation at all wavelengths - that is reflected or scattered by an object in all directions. ellipticity oblateness flattening A measure of the amount by which an object, such as a planet or a galaxy, deviates from a perfect sphere. f eccentricity eccentriciteit A measure of the deviation from a circle for an orbit. e metallicity The log of the ratio between the ratios of the observed Fe and H quantities in a star and the same ratio in the Sun. This is a very important quantity that is often used in astronomy as an indicator of the age of a star. dynamic range unit quantum efficiency unit radius (angle) radius (hoek) diameter (angle) diameter (hoek) altitude elevation The angular distance of a celestial body above or below the horizon, measured along the great circle passing through the body and the zenith. h Alt apparent diameter The angle that the actual diameter of an object makes in the sky; also known as angular size. Most often small, so units are mostly arcminutes, arcseconds, or even milli- or microarcseconds. azimuth azimut The angular distance measured clockwise along the horizon from a specified reference point (usually north) to the intersection with the great circle drawn from the zenith through a body on the celestial sphere. A Az declination declinatie The angular distance on the celestial sphere north or south of the celestial equator. It is measured along the hour circle passing through the celestial object. Declination is usually given in combination with right ascension or hour angle. δ dec ecliptic latitude The angular distance on the celestial sphere north or south of the ecliptic (the path of the Sun on the celestial sphere during one year). It is measured along the great circle passing through the object and the ecliptic poles and perpendicular to the ecliptic. β ecliptic longitude The angular distance on the celestial sphere measured clockwise from the vernal equinox along the ecliptic (the path of the Sun on the celestial sphere during one year) to the intersection with the great circle drawn from the ecliptical north pole through the object. λ galactic cylindrical polar angle coordinate The angle from the Galactic centre between the perpendicular projection of the Sun on the Galactic plane and the projection of the object. This is one of the three Galactic Cylindrical Polar Coordinates. φ galactic latitude The angular distance on the celestial sphere north or south of the galactic equator. It is measured along the great circle passing through the object and the galactic poles and perpendicular to the galactic equator. b galactic longitude The angular distance on the celestial sphere measured clockwise from the galactic centre (as defined by the International Astronomical Union (IAU)) along the galactic equator to the intersection with the great circle drawn from the galactic north pole through the object. l hour angle uurhoek The angular distance on the celestial sphere measured westward along the celestial equator from the meridian to the hour circle that passes through the celestial object. H right ascension rechte klimming The angular distance on the celestial sphere measured eastward along the celestial equator from the equinox to the great circle passing through the celestial object and the celestial north pole. α ra supergalactic latitude The angular distance on the celestial sphere north or south of the supergalactic equator. It is measured along the great circle passing through the object and the supergalactic poles and perpendicular to the supergalactic equator. SGB supergalactic longitude The angular distance on the celestial sphere measured clockwise from the supergalactic centre (as defined by the International Astronomical Union (IAU)) along the supergalactic equator to the intersection with the great circle drawn from the supergalactic north pole through the object. SGL zenith distance zenitafstand zenith angle zenithoek The angular distance on the celestial sphere measured along the great circle from the zenith to the celestial object. z = 90° - h. z aberration The apparent angular displacement of the observed position of a celestial object from its geometric position, caused by the finite velocity of light in combination with the motions of the observer and of the observed object. planetary aberration The apparent angular displacement of the observed position of a celestial object produced by the motion of the observer and the actual motion of the observed object. stellar aberration The apparent angular displacement of the observed position of a celestial object resulting from the motion of the observer. Stellar aberration is divided into diurnal, annual, and secular components. annual aberration The component of the stellar abberation resulting from the motion of the Earth about the Sun. The abberation is the apparent angular displacement of the observed position of a celestial object from its geometric position, caused by the finite velocity of light in combination with the motions of the observer and of the observed object. diurnal aberration The component of the stellar abberation resulting from the diurnal motion of the observer around the centre of the Earth. The abberation is the apparent angular displacement of the observed position of a celestial object from its geometric position, caused by the finite velocity of light in combination with the motions of the observer and of the observed object. secular aberration The component of the stellar abberation resulting from the motion of the solar system in space. This component is usually ignored. The abberation is the apparent angular displacement of the observed position of a celestial object from its geometric position, caused by the finite velocity of light in combination with the motions of the observer and of the observed object. aberration in longitude The apparent angular displacement in ecliptical longitude of the observed position of a celestial object from its geometric position, caused by the finite velocity of light in combination with the motions of the observer and of the observed object. Δλ aberration in latitude The apparent angular displacement in ecliptical latitude of the observed position of a celestial object from its geometric position, caused by the finite velocity of light in combination with the motions of the observer and of the observed object. Δβ initial mass function The number of stars in mass fraction dM around mass M. Used in Salpeter's Initial Mass Function (IMF). IMF luminosity function The number of stars of absolute magnitudes between Mv and Mv+ΔMv per cubic parsec. noise equivalent power Radiative flux on a detector needed for a signal/noise ratio of 1 (Kitchin, Astrophysical Techniques, IoP, Table 1.1.2). NEP cold gas mass fraction The fraction of the mass of a galaxy that is in the form of cold gas ~10s K. detectivity Reciprocal of Noise equivalent power. The signal-to-noise ratio for incident radiation of unit intensity. D dynamic range Ratio between the saturation output and the dark signal, sometimes only over the region of linearity. spectral response The change in output signal as a function of changes in the wavelength of the input signal. magnitude magnitude Reverse logarithmic measure of the brightness of an object. The magnitude scale was originally created by Hipparchos of Nicea (160-127 BCE) and was measured by comparing the brightness between stars. Initially this was done inaccurately by eye but is currently done by using photoelectric photometers or even more recently by CCDs. Hipparchos divided the stars into six magnitude (brightness classes), the brightest stars being assigned to the first class and the faintest to the sixth class. By about the middle 1800s it became apparent that the traditional magnitude scale is close to a logarithmic scale with base 2.5. This is due to the fact that the response of the eye is nearly logarithmic. N.R. Pogson formalised the magnitude scale to closely match the traditional (visual) scale. It is now defined as: m₁ - m₂ = - 2.5 log (f₁ / f₂) where m₁ - m₂ is the magnitude difference between two objects, and f₁ and f₂ are the luminous fluxes of the two objects. The magnitude of Vega (α Lyrae, HD 172167) is defined to be 0 in all wavelengths and passbands, although in practice this can only be an approximation. The zero point is now defined using multiple standard stars from the north polar sequence (non-variable stars within 2 degrees of the north celestial pole) or secondary standard stars from other parts of the sky. Please note that the scale is inverted, objects of magnitude 1 have a higher luminous flux than objects of magnitude 5. Stars of magnitude 6 are just visible to the naked eye under good observing conditions. The units of magnitude, also called magnitude, are usually not indicated except when indicating small magnitude differences when milli- or micromagnitudes are used. m apparent distance modulus absolute magnitude absolute magnitude Logarithmic measure of the brightness of an object as seen from a standard distance of 10 pc. Units usually not indicated (http://en.wikipedia.org/wiki/Magnitude_(astronomy). M amplitude The difference between the maximum and minimum magnitudes of a variable star, i.e., the total range of its brightness. apparent magnitude schijnbare magnitude Logarithmic measure of the apparent brightness of an object. Units usually not indicated(http://en.wikipedia.org/wiki/Magnitude_(astronomy). m B magnitude Johnson B magnitude. The Johnson B band is a standard filter in the blue area. The central wavelength is 440nm and the bandwidth is 100nm. The filter to be used is the Corning 5030 filter plus the Schott GG13 filter. B m_B B magnitude at maximum brightness Johnson B magnitude at maximum brightness (i.e. for a variable star). The Johnson B band is a standard filter in the blue area. The central wavelength is 440nm and the bandwidth is 100nm. The filter to be used is the Corning 5030 filter plus the Schott GG13 filter. B_max B magnitude at minimum brightness Johnson B magnitude at minimum brightness (i.e. for a variable star). The Johnson B band is a standard filter in the blue area. The central wavelength is 440nm and the bandwidth is 100nm. The filter to be used is the Corning 5030 filter plus the Schott GG13 filter. B_min bolometric magnitude The magnitude of a star measured across all wavelengths, so that it takes into account the total amount of energy radiated. If a star is a strong infrared or ultraviolet emitter, its bolometric magnitude will differ greatly from its visual magnitude. m_bol absolute bolometric magnitude The absolute magnitude (see absolute magnitude) of a star is a measure of its total energy emission per second, or luminosity, i.e., the bolometric magnitude from a standard distance (10 pc). M_bol bolometric correction The visual magnitude of an object minus its bolometric magnitude. BC colour index kleurindex The difference between the apparent magnitude of a star at two different wavelengths (always the shorter-wavelength magnitude minus the longer-wavelength magnitude) to give a quantification of the star's colour. The magnitude of an object at different wavelengths are measured by using different filters before the detector. Often the Johnson system with UBV passbands are used. Other passbands may also be used (for instance g-r). intrinsic colour index The colour index a star would have in the absence of interstellar extinction (reddening). It is assumed that all stars of the same spectral type and luminosity class have the same colour index. distance modulus The difference between the apparent magnitude (m) of an astronomical object, such as a star, and its absolute magnitude (M), used as a distance measurement. Distances can be expressed in distance modulii as $$m-M = 5\log d + 10 = 10-5 log \varpi$$ where \(d\) is the distance in kiloparsec and \(\varpi\) is the parallax in milliarcseconds. m-M extinction extinctie Total extinction at a specific wavelength. The extinction is caused by dust and gas between a star and the observer. It is the difference between the observed magnitude and the magnitude the source would have had if no extinction had taken place. A extinction at wavelength A_λ extinction at waveband A_X extinction in V A_V extinction in B A_B extinction in U A_U integrated magnitude The apparent magnitude that an extended object, such as a nebula or galaxy, would have if all its light were concentrated at a starlike point. limiting magnitude The magnitude of the faintest object (star) that can be detected by a telescope or other instrument. Depends not only on the telescope but also on the detector and on the observing method. magnitude at maximum brightness The magnitude at maximum brightness of a variable star. m_max magnitude at minimum brightness The magnitude at minimum brightness of a variable star. m_min photographic amplitude Amplitude of the light variation in photographic magnitude. A_V photographic magnitude m_photo photographic magnitude at maximum brightness m_p,max photographic magnitude at minimum brightness m_p,min red magnitude A red magnitude not specified for a specific photometric system. r m_r reddening colour excess wavelength-selective extinction Reddening causes the star to appear redder if more dust or gas is between the star and the observer. E reddening (B-V) colour excess (B-V) wavelength-selective extinction (B-V) Reddening causes the star to appear redder if more dust or gas is between the star and the observer. The standard reddening is measured using the B and V passbands. E_B-V E_{\mathit{B-V}} reddening (U-B) colour excess (U-B) wavelength-selective extinction (U-B) Reddening measured with the U and B passbands. E_U-B E_{\mathit{U-B}} true distance modulus Tycho broadband magnitude Broadband Tycho magnitude (formed from B and V magintude measurements. T m_T Johnson magnitude A magnitude measured in one of Johnson's standard passbands (using a standard filter, i.e. U, B, or V). For accurate photometry the magnitude needs to be determined over well-defined spectral regions as the spectrum of to objects may be quite different. These magnitudes are measured using filters that allows only radiation within specific spectral regions (passbands) to pass through to the detector. These filters have accurately defined transmission curves characterised by a central wavelength and a bandwidth. The UBV system devised by Harold Johnson and William Morgan has been the most important general system until recently. The precise definition requires a reflecting telescope with aluminised mirrors fitted with an RCA 1P21 photomultiplier. The U region corresponds to a region in the violet and ultraviolet, the B region corresponds to typical photographic response and the V region to the visual response region (approximating the eye's response curve). Strömgren magnitude A magnitude measured in one of Strömgren's standard passbands (using a standard filter, u, b, v, or y) or in the passbands defined by Crawford (β_narrow or β_wide). Cousins magnitude A magnitude measured in one of Cousins standard passbands (using a standard filter, i.e. I or R). Thuan and Gunn magnitude A magnitude measured in one of Thuan and Gunn's standard passbands (using a standard filter, i.e. g). U magnitude Johnson U magnitude. The Johnson U band is a standard passband in the ultraviolet area. The central wavelength is 365nm and the bandwidth is 70nm. The filter to be used is the Corning 9863 filter. U m_U V amplitude Amplitude of the light variation in Johnson V magnitude. The Johnson V band is a standard passband in the visual area, matching the response curve of the human eye. The central wavelength is 550nm and the bandwidth is 90nm. The filter to be used is the Corning 3384 filter. A_V V magnitude Johnson V magnitude. The Johnson V band is a standard passband in the visual area, matching the response curve of the human eye. The central wavelength is 550nm and the bandwidth is 90nm. The filter to be used is the Corning 3384 filter. V m_V V magnitude at maximum brightness Johnson V magnitude (apparent) at maximum brightness (i.e. for a variable star). The Johnson V band is a standard filter in the visual area, matching the response curve of the human eye. The central wavelength is 550nm and the bandwidth is 90nm. The filter to be used is the Corning 3384 filter. V_max V magnitude at minimum brightness Johnson V magnitude (apparent) at minimum brightness (i.e. for a variable star). The Johnson V band is a standard filter in the visual area, matching the response curve of the human eye. The central wavelength is 550nm and the bandwidth is 90nm. The filter to be used is the Corning 3384 filter. V_min white light magnitude m white light magnitude at maximum brightness m_max white light magnitude at minimum brightness m_min 1040 nm Lockwood magnitude A magnitude in the 1.04 micrometre band of the photometric system introduced by G.W. Lockwood. m_L1040 u magnitude u Magnitude in the Strömgren photometric system with a peak wavelength at 350 nm and a peak-half-width of 30 nm. u m_u v magnitude v Magnitude in the Strömgren photometric system with a peak wavelength at 411 nm and a peak-half-width of 19 nm. v m_v b magnitude b Magnitude in the Strömgren photometric system with a peak wavelength at 467 nm and a peak-half-width of 18 nm. b m_b y magnitude y Magnitude in the Strömgren photometric system with a peak wavelength at 547 nm and a peak-half-width of 23 nm. y m_y β_narrow magnitude β_narrow Magnitude in the Strömgren-Crawford photometric system with a peak wavelength at 485.8 nm and a peak-half-width of 2.9 nm. β_n β_narrow β_wide magnitude β_wide Magnitude in the Strömgren-Crawford photometric system with a peak wavelength at 485 nm and a peak-half-width of 12.9 nm. β_w β_wide I magnitude I magnitude in the Cousins photometric system. I m_I R magnitude R magnitude in the Cousins photometric system. R m_R g magnitude g Magnitude in the Thuan and Gunn photometric system. g m_g quantum efficiency Ratio (of a detector such as a CCD) of actual number of detected photons and the number of incident photons. QE detective quantum efficiency Square of ratio between the output signal noise ratio and the input signal noise ratio. DQE dark noise Output from a detector when unilluminated - usually as RMS voltage or current (Kitchin, Astrophysical Techniques, IoP, Table 1.1.2). normalised detectivity The detectivity normalised by multiplying by the square root of the detector area, and by the electrical bandwidth. The units cm Hz(1/2)/W are commonly used and it then represents the signal-to-noise ratio when 1 W of radiation is incident on a detector with an area of 1 cm2, and the electrical bandwidth is 1 Hz. D* responsivity Detector output for unit intensity input. Units are usually volts per watt or amps per watt. R hour (hour angle) uur (uurhoek) Wordt gebruikt als hoek (360°=24) voor o.a. rechte klimming. De h wordt meestal als superscript achter de waarde gezet gevolgd door de verdere opdeling naar minuten en seconden. Zoals in 5h34m12s09. Vaak wordt de fractie in seconden zonder punt geschreven, de s wordt als afscheiding gebruikt (http://en.wikipedia.org/wiki/Right_ascension). h 15 minute (hour angle) minuut (uurhoek) Wordt gebruikt als hoek (360°=1440) voor o.a. rechte klimming. De m wordt meestal als superscript achter de waarde gezet gevolgd door de verdere opdeling naar seconden. Zoals in 5h34m12s09. Vaak wordt de fractie in seconden zonder punt geschreven, de s wordt als afscheiding gebruikt (http://en.wikipedia.org/wiki/Right_ascension). m 0.25 second (hour angle) seconde (uurhoek) Wordt gebruikt als hoek (360°=864000) voor o.a. rechte klimming. De s wordt meestal als superscript achter de waarde gezet. Zoals in 5h34m12s09. Vaak wordt de fractie in seconden zonder punt geschreven, de s wordt als afscheiding gebruikt (http://en.wikipedia.org/wiki/Right_ascension). s 0.0041666667 astronomical unit The atronomical unit is a unit of length defined as 149 597 870 700 metre (IAU 2012 Resolution). au AU 149597870700 light year lichtjaar lightyear The light year is a unit of length defined as 9.46073e15 metre. ly 9460730000000000 parsec The parsec is a unit of length defined as 3.08567758149137e16 metre. pc 30856775814913700 kiloparsec kiloparsec The kiloparsec is a unit of length defined as 1.0e3 parsec. Gebruikt voor afstanden op de schaal van het melkwegstelsel. kpc megaparsec megaparsec The megaparsec is a unit of length defined as 1.0e6 parsec. Gebruikt voor afstanden op de schaal van clusters. Mpc gigaparsec gigaparsec The gigaparsec is a unit of length defined as 1.0e9 parsec. Gebruikt voor de afstand op de schaal van het heelal. Gpc solar radius Solar radius is a unit used in astronomy to denote stellar or stellar system radii (http://en.wikipedia.org/wiki/solarRadius). R_☉ R_{\astrosun} 695500000 gigayear gigajaar Gyr day (sidereal) sidereal day The sidereal day is a unit of time defined as 8.616409e4 second. 86164.09 hour (sidereal) sidereal hour 3590.170 minute (sidereal) sidereal minute The sidereal minute is a unit of time defined as 5.983617e1 second. 59.83617 second (sidereal) sidereal second second (sidereal) The sidereal second is a unit of time defined as 9.972696e-1 second. 0.9972696 year (sidereal) sidereal year The sidereal year is a unit of time defined as 3.155815e7 second. 31558150 year (tropical) tropical year The tropical year is a unit of time defined as 3.155693e7 second. 31556930 solar mass zonsmassa Solar mass is a unit used in astronomy to denote stellar or galactic masses (http://en.wikipedia.org/wiki/SolarMass). M_☉ M_{\astrosun} 1988920000000000000000000000000 cubic parsec kubieke parsec pc3 3 cubic kiloparsec kubieke kiloparsec kpc3 3 magnitude magnitude Eenheid waarmee de helderheid van sterren wordt aangegeven. Meestal wordt het symbool niet aangeduid (http://en.wikipedia.org/wiki/Magnitude_(astronomy)). mag magnitude unit millimagnitude millimagnitude The millimagnitude is a unit of magnitude defined as 1.0e-3 magnitude. mmag micromagnitude micromagnitude The micromagnitude is a unit of magnitude defined as 1.0e-6 magnitude. μmag solar mass per cubic parsec zonsmassa per kubieke parsec The mass (in solar masses) per cubic parsec. M_☉/pc3 M_☉ pc-3 M_☉·pc-3 M_{\astrosun} pc^{-3} solar luminosity Solar luminosity is a unit used in astronomy to denote stellar or galactic radiant fluxes (http://en.wikipedia.org/wiki/SolarLuminosity). L_☉ L_{\astrosun} 383900000000000000000000000 volt per watt volt per watt V/W V W-1 V·W-1 responsivity unit ampere per watt ampere per watt A/W A W-1 A·W-1 jansky jansky flux unit Jy magnitude per second (angle) squared The brightness (in magnitudes) of an area on the celestial sphere of 1 arcsecond by 1 arcsecond. mag/arcsec2 mag arcsec-2 mag·arcsec-2 watt per second (angle) squared The radiative intensity (in watts) of an area on the celestial sphere of 1 arcsecond by 1 arcsecond. W/arcsec2 W arcsec-2 W·arcsec-2 reciprocal cubic parsec omgekeerde kubieke parsec pc-3 -3 gigayear cubic parsec gigajaar kubieke parsec Gyr pc3 Gyr·pc3 gigayear cubic kiloparsec gigajaar kubieke kiloparsec Gyr kpc3 Gyr·kpc3 solar mass per gigayear cubic parsec The amount of stellar mass created per cubic parsec in each billion years. M_☉/(Gyr pc3) M_☉ Gyr-1 pc-3 M_☉·Gyr-1·pc-3 solar mass per gigayear cubic kiloparsec The amount of stellar mass created per cubic kiloparsec in each billion years. M_☉/(Gyr kpc3) M_☉ Gyr-1 kpc-3 M_☉·Gyr-1·kpc-3 M_{\astrosun}Gyr^{-1}kpc^{-1} cosmology kosmologie critical density kritieke dichtheid The density needed for a closed universe. ρ_c curvature constant The curvature constant k=-1, 0, or 1. k curvature constant unit deceleration parameter q deceleration parameter unit density parameter Ratio of the average density and the critical density. Ω density parameter unit density parameter for matter The density parameter for matter (either baryonic or dark). Ω_M density parameter for baryonic matter The density parameter for baryonic (oridnary) matter. Ω_B density parameter for radiation The density parameter for radiation. Ω_R density parameter for vacuum The density parameter for vacuum. Ω_Λ total density parameter The total density parameter. Ω_T Hubble constant constante van Hubble The Hubble constant (NOT a constant over time). Hubble constant unit Hubble constant at present epoch constante van Hubble tijdens het huidige epoch The Hubble constant at the present epoch (a constant). H_0 cosmological constant kosmologische constante The cosmological constant. Λ scale factor schaalfactor kilometre per second per megaparsec kilometer per seconde per megaparsec De eenheid van de Hubble constante (die niet constant is!) (http://en.wikipedia.org/wiki/Hubble_constant). km s-1 Mpc-1 permeability (earth science) permeabiliteit (aardwetenschappen) intrinsic permeability intrinsieke permeabiliteit κ k darcy darcy The darcy is a unit of area defined as 9.869233e-13 square metre. 0.0000000000009869233 permeability (earth science) unit permeance (materials science) Permeance is the degree to which a material transmits another substance. Λ kilogram per pascal second square metre kilogram per pascal seconde vierkante meter kg Pa-1 s-1 m-2 kg·Pa-1·s-1·m-2 kg/(Pa s m2) kg/(Pa·s·m2) permeance (materials science) unit perm (0 °C) perm (0 °C) 0 °C perm 0 °C perm The 0 °C perm is a unit ofpermeance defined as 5.72135e-11 kilogram per pascal second (time) square metre. 0.0000000000572135 perm (23 °C) perm (23 °C) 23 °C perm 23 °C perm The 23 °C perm is a unit of permeance defined as 5.74525e-11 kilogram per pascal second (time) square metre. 0.0000000000574525 permeance (materials science) dimension -1 0 1 0 0 0 0 viable count viable count (volumetric) coliform bacteria count (volumetric) Corynebacterium count (volumetric) Arcanobacterium count (volumetric) Corynebacterium bovis count (volumetric) Enterobacteriaceae count (volumetric) Enterococcus count (volumetric) Escherichia coli count (volumetric) Klebsiella count (volumetric) Listeria monocytogenes count (volumetric) Salmonella count (volumetric) Serratia marcescens count (volumetric) Staphylococcus aureus count (volumetric) Streptococcus agalactiae count (volumetric) Streptococcus dysgalactiae count (volumetric) Streptococcus uberis count (volumetric) yeast and fungi count (volumetric) viable count (specific) coliform bacteria count (specific) Corynebacterium count (specific) Arcanobacterium count (specific) Corynebacterium bovis count (specific) Enterobacteriaceae count (specific) Enterococcus count (specific) Escherichia coli count (specific) Klebsiella count (specific) Listeria monocytogenes count (specific) Salmonella count (specific) Serratia marcescens count (specific) Staphylococcus aureus count (specific) Streptococcus agalactiae count (specific) Streptococcus dysgalactiae count (specific) Streptococcus uberis count (specific) yeast and fungi count (specific) colony forming unit CFU 1000 colony forming unit 1000 CFU 1000 colony forming unit per gram CFU/g colony forming unit per millilitre CFU/ml colony forming unit per 25 millilitre CFU/ml 1000 colony forming unit per millilitre 1000 CFU/ml 1000 CFU/ml viable count unit volumetric viable count unit specific viable count unit acoustics akoestiek bel bel B decibel decibel dB sustainability duurzaamheid carbon dioxide equivalent mass carbon dioxide equivalent mass per energy gram of carbon dioxide equivalent gCO2eq 0.0010 kilogram of carbon dioxide equivalent kgCO2eq tonne of carbon dioxide equivalent tCO2eq 1000 carbon dioxide equivalent mass unit gram of carbon dioxide equivalent per kilowatt hour gCO2eq/kWh kilogram of carbon dioxide equivalent per megawatt hour kgCO2eq/MWh tonne of carbon dioxide equivalent per gigawatt hour tCO2eq/GWh carbon dioxide equivalent mass per energy unit economics economie amount of money cost specific amount of money specific cost euro 欧元 megaeuro United States dollar 美国美元 Japanese yen 日元 pound sterling 英镑 Australian dollar 澳元 Swiss franc 瑞士法郎 Canadian dollar 加元 Mexican peso 墨西哥比索 Chinese yuan 中国元 New Zealand dollar 新西兰美元 Swedish krona 瑞典克朗 RussianRuble 俄罗斯卢布 Hong Kong dollar 港元 Norwegian krone 挪威克朗 Singapore dollar 新加坡元 Turkish lira 土耳其里拉 South Korean won 韩元 South African rand 南非兰特 Brazilian real 巴西里拉 Indian rupee 印度卢比 amount of money unit euro per tonne megaeuro per megatonne specific amount of money unit information technology informatietechnologie information capacity informatiecapaciteit symbol rate baud rate modulation rate Symbol rate is the number of symbol changes (signalling events) made to the transmission medium per second using a digitally modulated signal or a line code. pixel count binary prefix IEC prefix kibi kibi kilobinary IEC prefix Ki 1024 mebi mebi megabinary IEC prefix Mi 1048576 gibi gibi gigabinary IEC prefix Gi 1073741824 tebi tebi terabinary IEC prefix Ti 1099511627776 pebi pebi petabinary IEC prefix Pi 1125899906842624 exbi exbi exabinary IEC prefix Ei 1152921504606846976 zebi zebi IEC prefix Zi 1180591620717411303424 yobi yobi IEC prefix Yi 1208925819614629174706176 bit bit 指二进制中的一位 bit one binary digit information capacity of one binary digit The bit is a unit of information capacity defined as the information capacity of one binary digit. information capacity unit kibibit kibibit Kibit mebibit mebibit Mibit gibibit gibibit Gibit tebibit tebibit Tibit pebibit pebibit Pibit exbibit exbibit Eibit zebibit zebibit Zibit yobibit yobibit Yibit kilobit kilobit kbit megabit megabit Mbit gigabit gigabit Gbit terabit terabit Tbit petabit petabit Pbit exabit exabit Ebit zettabit zettabit Zbit yottabit yottabit Ybit prefixed bit 1 1 byte byte 字节 The byte is a unit of information capacity defined as 8 bit. B 8 kibibyte kibibyte KiB mebibyte mebibyte MiB gibibyte gibibyte GiB tebibyte tebibyte TiB pebibyte pebibyte PiB exbibyte exbibyte EiB zebibyte zebibyte ZiB yobibyte yobibyte YiB kilobyte kilobyte kB megabyte megabyte 百万字节 MB gigabyte gigabyte GB terabyte terabyte 10^12字节 TB petabyte petabyte 10^15字节 PB exabyte exabyte 千兆兆字节 EB zettabyte zettabyte 10^21字节 ZB yottabyte yottabyte 10^24字节 YB prefixed byte 1 1 hartley hartley The hartley is a unit of information capacity defined as 3.321928095 bit. Hart 3.321928095 shannon shannon The shannon is a unit of information capacity defined as 1 bit. Sh baud baud Bd The baud is a unit of symbol rate defined as one distinct symbol change or signalling event made to the transmission medium per second in a digitally modulated signal or a line code. symbol rate unit bit per second bit per seconde bit/s bit s-1 bit·s-1 pixel pixel pixel count unit typography typografie font size fontgrootte cicero cicero The cicero is a unit of length defined as 12 point (Didot). 12 pica (ATA) ATA pica The ATA pica is a unit of length defined as 12 point (ATA). 12 pica (Postscript) Postscript pica The Postscript pica is a unit of length defined as 12 point (Postscript). 12 pica (TeX) TeX pica The TeX pica is a unit of length defined as 12 point (TeX). 12 point (ATA) ATA point The ATA point is a unit of length defined as 0.3514598e-3 metre. pt 0.0003514598 point (Didot) Didot point The Didot point is a unit of length defined as 0.3759e-3 metre. pt 0.0003759 point (Postscript) Postscript point The Postscript point is a unit of length defined as 0.013888888888888888888888888888889 inch. pt 0.013888888888888888888888888888889 point (TeX) TeX point The TeX point is a unit of length defined as 0.01383700013837000138370001383 inch. pt 0.013837000138370001383700013837 font size unit shipping shipping acetic acid mass fraction The fraction of the mass of acetic acid in a phenomenon disodium ethylene diamine tetra acetate mass fraction NaEDTA mass fraction The fraction of the mass of disodium ethylene diamine tetra acetate in a phenomenon dry matter mass fraction The fraction of the mass of dry matter in a phenomenon egg mass fraction The fraction of the mass of egg in a phenomenon fat mass fraction The fraction of the mass of fat in a phenomenon gelatin mass fraction The fraction of the mass of gelatin in a phenomenon guar gum mass fraction The fraction of the mass of guar gum in a phenomenon lactose mass fraction The fraction of the mass of lactose in a phenomenon locust bean gum mass fraction The fraction of the mass of locust bean gum in a phenomenon moderated starch mass fraction The fraction of the mass of moderated starch in a phenomenon mustard powder mass fraction The fraction of the mass of mustard powder in a phenomenon potassium sorbate mass fraction The fraction of the mass of potassium sorbate in a phenomenon protein mass fraction The fraction of the mass of protein in a phenomenon salt mass fraction The fraction of the mass of salt in a phenomenon soy bean mass fraction The fraction of the mass of soy bean oil in a phenomenon starch mass fraction The fraction of the mass of starch in a phenomenon starch VA40 mass fraction The fraction of the mass of starch VA40 in a phenomenon starch VA85 mass fraction The fraction of the mass of starch VA85 in a phenomenon sugar mass fraction The fraction of the mass of sugar in a phenomenon tween mass fraction The fraction of the mass of tween in a phenomenon water mass fraction The fraction of the mass of water in a phenomenon whey protein mass fraction The fraction of the mass of whey protein in a phenomenon whey protein aggregate mass fraction The fraction of the mass of whey protein aggregate in a phenomenon whey protein beads mass fraction The fraction of the mass of whey protein beads in a phenomenon xanthan mass fraction The fraction of the mass of xanthan in a phenomenon vase life vaasleven Aantal dagen op de vaas tot onvoldoende. number bud stadium aantal knopstadium number bud stadium 1 aantal knopstadium 1 s1 Roos aantal in knopstadium 1: spitse knop. number bud stadium 2 aantal knopstadium 2 s2 Roos aantal in knopstadium 2: spitse knop. number bud stadium 3 aantal knopstadium 3 s3 Roos aantal in knopstadium 3: spitse knop. number bud stadium 4 aantal knopstadium 4 s4 Roos aantal in knopstadium 4: spitse knop. number bud stadium 5 aantal knopstadium 5 s5 Roos aantal in knopstadium 5: spitse knop. bud stadium knopstadium bud stadium day 0 knopstadium dag 0 sday0 Knopstadium vaasdag 0 (start vaasleven) (code). bud stadium day 4 knopstadium dag 4 sday4 Knopstadium vaasdag 4 (code). bud stadium day 7 knopstadium dag 7 sday7 Knopstadium vaasdag 7 (code). 1-5 1-5 number Botrytis aantal Botrytis number Botrytis 0 aantal Botrytis 0 b0 Aantal bloemen zonder Botrytis. number Botrytis 1 aantal Botrytis 1 b1 Aantal bloemen met Botrytis 1: enkele laesies: max 3 op één petaal of max 5 op meerdere plekken. number Botrytis 2 aantal Botrytis 2 b2 Aantal bloemen met Botrytis 2: grotere vlek(ken) op één petaal. number Botrytis 3 aantal Botrytis 3 b3 Aantal bloemen met Botrytis 3: één bruin petaal of vlekken op meer petalen. number Botrytis 4 aantal Botrytis 4 b4 Aantal bloemen met Botrytis 4: minimaal één bruin petaal en hart aangetast. cause end of vase life Botrytis oorzaak einde vaasleven Botrytis bot Oorzaak einde vaasleven Botrytis (b3 of b4) (1/0). 1/0 1/0 number flowers aantal bloemen total number flowers totaal aantal bloemen #flowers Totaal aantal bloemen. number blue-discolored flowers aantal blauwverkleurde bloemen #blue flowers Aantal blauwverkleurde bloemen. number abscised flowers aantal gevallen bloemen #abscised flowers Aantal gevallen bloemen. number wilted flowers aantal verwelkte bloemen #wilted flowers Aantal verwelkte bloemen. number rotten flowers aantal rotte bloemen #rotten flowers Aantal rotte bloemen. number dry flowers aantal verdroogde bloemen #dry flowers Aantal verdroogde bloemen. number malformed flowers aantal misvormde bloemen #malformed flowers Aantal misvormde bloemen. number nonturgid flowers aantal slappe bloemen #nonturgid flowers Aantal slappe bloemen. cause end of vase life blue flowers oorzaak einde vaasleven blauwe bloemen blue flowers Oorzaak einde vaasleven blauwe bloemen (1/0). cause end of vase life abscised flowers oorzaak einde vaasleven bloemval abscised flowers Oorzaak einde vaasleven bloemval (1/0). cause end of vase life wilted flowers oorzaak einde vaasleven bloemverwelking wilted flowers Oorzaak einde vaasleven bloemverwelking (1/0). cause end of vase life rotten flowers oorzaak einde vaasleven bloemrot rotten flowers Oorzaak einde vaasleven bloemrot (1/0). cause end of vase life dry flowers oorzaak einde vaasleven bloemverdroging dry flowers Oorzaak einde vaasleven bloemverdroging (1/0). cause end of vase life malformed flowers oorzaak einde vaasleven misvormde bloemen malformed flowers Oorzaak einde vaasleven misvormde bloemen (1/0). cause end of vase life nonturgid flowers oorzaak einde vaasleven slappe bloemen nonturgid flowers Oorzaak einde vaasleven slappe bloemen (1/0). number leaves aantal bladeren total number leaves totaal aantal bladeren #leaves Totaal aantal bladeren. number dry leaves aantal verdroogde bladeren #dry leaves Aantal verdroogde bladeren. number yellow leaves aantal vergeelde bladeren #yellow leaves Aantal yellow bladeren. number abscised leaves aantal gevallen bladeren #abscised leaves Aantal gevallen bladeren. number wilted leaves aantal verwelkte bladeren #wilted leaves Aantal verwelkte bladeren. number rotten leaves aantal rotte bladeren #rotten leaves Aantal rotte bladeren. number nonturgid leaves aantal slappe bladeren #nonturgid leaves Aantal slappe bladeren. cause end of vase life dry leaves oorzaak einde vaasleven bladverdroging dry leaves Oorzaak einde vaasleven bladverdroging (1/0). cause end of vase life yellow leaves oorzaak einde vaasleven bladvergeling yellow leaves Oorzaak einde vaasleven bladvergeling (1/0). cause end of vase life abscised leaves oorzaak einde vaasleven bladval abscised leaves Oorzaak einde vaasleven bladval (1/0). cause end of vase life wilted leaves oorzaak einde vaasleven bladverwelking wilted leaves Oorzaak einde vaasleven bladverwelking (1/0). cause end of vase life rotten leaves oorzaak einde vaasleven rotte bladeren rotten leaves Oorzaak einde vaasleven rotte bladeren (1/0). cause end of vase life nonturgid leaves oorzaak einde vaasleven slappe bladeren nonturgid leaves Oorzaak einde vaasleven slappe bladeren (1/0). number buds aantal knoppen total number buds totaal aantal knoppen #buds Totaal aantal knoppen. number dry buds aantal verdroogde knoppen #dry buds Aantal verdroogde knoppen. number malformed buds aantal misvormde knoppen #malformed buds Aantal misvormde knoppen. number abscised buds aantal gevallen knoppen #abscised buds Aantal gevallen knoppen. cause end of vase life dry buds oorzaak einde vaasleven knopverdroging dry buds Oorzaak einde vaasleven knopverdroging (1/0). cause end of vase life malformed buds oorzaak einde vaasleven misvormde knoppen malformed buds Oorzaak einde vaasleven misvormde knoppen (1/0). cause end of vase life abscised buds oorzaak einde vaasleven knopval abscised buds Oorzaak einde vaasleven knopval (1/0). quality mark kwaliteitscijfer Qcijfer quality mark flower(s) kwaliteitscijfer bloem(en) Qcijfer flower quality mark leafs kwaliteitscijfer bladeren Qcijfer leaf quality mark total kwaliteitscijfer total Qcijfer total 1-10 1-10 0-100 0-100 vase plus water mass vaas- plus watermassa vase plus water weight weight vase Gewicht vaas plus water. vase plus water plus flower mass vaas- plus water- plus bloemmassa vase plus water plus flower weight weight flo and vase Gewicht vaas plus water plus bloem (= steel plus blad plus bloem). number color aantal kleur number color 1 aantal kleur 1 color_1 Voorbeeld avocado Hass: code 1 poster (vrijwel) geheel groen. number color 2 aantal kleur 2 color_2 Voorbeeld avocado Hass: code 2 poster meer groen dan donker. number color 3 aantal kleur 3 color_3 Voorbeeld avocado Hass: code 3 poster 50% groen. number color 4 aantal kleur 4 color_4 Voorbeeld avocado Hass: code 4 poster meer donker dan groen. number color 5 aantal kleur 5 color_5 Voorbeeld avocado Hass: code 5 poster (vrijwel) geheel donker. color area fraction kleuroppervlaktefractie color% Voorbeeld avocado Hass: percentage oppervlak donker. number external browning number external browning 1 ext_brown_1 Voorbeeld avocado Hass: code 1 poster. number external browning 2 ext_brown_2 Voorbeeld avocado Hass: code 2 poster. number external browning 3 ext_brown_3 Voorbeeld avocado Hass: code 3 poster. number external browning 4 ext_brown_4 Voorbeeld avocado Hass: code 4 poster. number external browning 5 ext_brown_5 Voorbeeld avocado Hass: code 5 poster. external browning ext_brown Voorbeeld avocado Hass: poster (code). number vascular browning number vascular browning 1 vascular_1 Voorbeeld avocado Hass: code 1 poster vascular browning. number vascular browning 2 vascular_2 Voorbeeld avocado Hass: code 2 poster vascular browning. number vascular browning 3 vascular_3 Voorbeeld avocado Hass: code 3 poster vascular browning. number vascular browning 4 vascular_4 Voorbeeld avocado Hass: code 4 poster vascular browning. number vascular browning 5 vascular_5 Voorbeeld avocado Hass: code 5 poster vascular browning. vascular browning vascular Voorbeeld avocado Hass: poster (code). number pulp browning number pulp browning 1 pulp_1 Voorbeeld avocado Hass: code 1 poster pulp browning. number pulp browning 2 pulp_2 Voorbeeld avocado Hass: code 2 poster pulp browning. number pulp browning 3 pulp_3 Voorbeeld avocado Hass: code 3 poster pulp browning. number pulp browning 4 pulp_4 Voorbeeld avocado Hass: code 4 poster pulp browning. number pulp browning 5 pulp_5 Voorbeeld avocado Hass: code 5 poster pulp browning. pulp browning pulp Voorbeeld avocado Hass: poster (code). stem end rot stemendrot Aanwezigheid stem end rot (1/0). stem end rot area fraction stem-end-rot-oppervlaktefractie stemendrot% Percentage van het oppervlak stem end rot. stick stone stickstone Kleefpit of niet (1/0). acoustic firmness akoestische stevigheid firmness_ac Stevigheid gemeten met AWETA (acoustic firmness value). AFS value. AFS firmness (penetrometer) (method 1) stevigheid (penetrometer) (methode 1) firmness_pen_1 Stevigheid gemeten met penetrometer methode 1. firmness (penetrometer) (method 2) stevigheid (penetrometer) (methode 2) firmness_pen_2 Stevigheid gemeten met penetrometer methode 2. number manual firmness aantal manuele stevigheid number manual firmness 0 aantal manuele stevigheid 0 firmness_m_0 Firmness manueel: 0 = steenhard. number manual firmness 0.5 aantal manuele stevigheid 0.5 firmness_m_0.5 Firmness manueel: 0.5 = hard. number manual firmness 1 aantal manuele stevigheid 1 firmness_m_1 Firmness manueel: 1 = zeer stevig. number manual firmness 1.5 aantal manuele stevigheid 1.5 firmness_m_1.5 Firmness manueel: 1.5 = stevig. number manual firmness 2 aantal manuele stevigheid 2 firmness_m_2 Firmness manueel: 2 = halfzacht. number manual firmness 2.5 aantal manuele stevigheid 2.5 firmness_m_2.5 Firmness manueel: 2.5 = eetrijp. number manual firmness 3 aantal manuele stevigheid 3 firmness_m_3 Firmness manueel: 3 = zacht. number manual firmness 3.5 aantal manuele stevigheid 3.5 firmness_m_3.5 Firmness manueel: 3.5 = te zacht. number manual firmness 4 aantal manuele stevigheid 4 firmness_m_4 Firmness manueel: 4 = week. number manual firmness 4.5 aantal manuele stevigheid 4.5 firmness_m_4.5 Firmness manueel: 4.5 = vies. number manual firmness 5 aantal manuele stevigheid 5 firmness_m_5 Firmness manueel: 5 = zeer vies. manual firmness manuele stevigheid firmness_m Firmness manueel: code 0 - 5. 0-5 0-5 x range y range z range total 3D start-end distance xy 2D start-end distance total distance travelled xy distance travelled body mass body weight cap mass cap weight carton mass carton weight dry mass dry weight dry body mass dry body weight flowpack mass flowpack weight label mass label weight body label mass body label weight neck ring mass neck ring weight straw mass straw weight top mass top weight common application area algemeen toepassingsgebied reference Hajo Rijgersberg Vrije Universiteit Amsterdam, The Netherlands Semantic Support of Quantitative Research 2013 http://www.openisbn.com/isbn/9789462280618/ 978-94-6228-061-8 Jean Meeus Willmann-Bell Inc. 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Crawford Two-dimensional spectral classification by narrow-band photometry for B stars in clusters and associations 1958 Astronomy Distance Measurement 128 185 206 http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1958ApJ...128..185C&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf Astrophysical Journal ApJ http://iopscience.iop.org/0004-637X/