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function quantity |
A FunctionQuantity is a PhysicalQuantity that is returned by a Function that maps from one or more instances of ConstantQuantity to another instance of ConstantQuantity. For example, the velocity of a particle would be represented by a FunctionQuantity relating values of time (which are instances of ConstantQuantity) to values of distance (also instances of ConstantQuantity). Note that all elements of the range of the Function corresponding to a FunctionQuantity have the same physical dimension as the FunctionQuantity itself.
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unit of measure |
A standard of measurement for some dimension. For example, the Meter is a UnitOfMeasure for the dimension of length, as is the Inch. There is no intrinsic property of a UnitOfMeasure that makes it primitive or fundamental, rather, a system of units (e.g. SystemeInternationalUnit) defines a set of orthogonal dimensions and assigns units for each.
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unit of area | Every instance of this Class is a UnitOfMeasure that can be used with MeasureFn to form instances of AreaMeasure. |
| | unit of atmospheric pressure | UnitOfAtmosphericPressure includes those instances of UnitOfMeasure used to measure atmospheric pressure (barometricPressure), e.g., InchMercury. |
| | unit of energy | |
| | unit of frequency | UnitOfFrequency is a unit for describing a number of occurances of an event in a unit of time, e.g. RPM (Revolutions per minute). |
| | unit of power | |
| | unit of volume | Every instance of this Class is a UnitOfMeasure that can be used with MeasureFn to form instances of VolumeMeasure. |
| Instances | ampere | SI electric current measure. Symbol: s. It is one of the base units in SI. It is defined as follows: the Ampere is that constant current which, if maintained in two straight parallel conductors of infinite length, of negligible circular cross-section, and placed 1 Meter apart in a vacuum, would produce between these conductors a force equal to 2*10^(-7) Newton per Meter of length. |
| | becquerel | SI radioactivity measure. Symbol: Bq. It measures the amount of radioactivity contained in a given sample of matter. It is that quantity of a radioactive element in which there is one atomic disintegration per SecondDuration. Becquerel = s^(-1). |
| | bits per second | The measurement of the speed of data transfer in a communications system. |
| | british thermal unit | An energy measure. |
| | calorie | A Calorie is an energy measure. |
| | candela | SI luminosity intensity measure. Symbol: cd. It is one of the base units in SI, and it is currently defined as follows: the Candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540*10^12 Hertz and that has a radiant intensity in that direction of 1/683 Watt per Steradian. |
| | coulomb | SI electric charge measure. Symbol: C. It is the quantity of electric charge transported through a cross section of a conductor in an electric circuit during each SecondDuration by a current of 1 Ampere. Coulomb = s*A. |
| | electron volt | The ElectronVolt is an energy measure. Symbol: eV. It is the kinetic energy acquired by an electron in passing through a potential difference of 1 Volt in a vacuum. |
| | farad | SI capacitance measure. Symbol: F. It is the capacitance of a capacitator between the plates of which there appears a difference of potential of 1 Volt when it is charged by a quantity of electricity equal to 1 Coulomb. Farad = C/V = m^(-2)*kg(-1)*s^4*A^2. |
| | gray | SI absorbed dose measure. Symbol: Gy. It measures the dose of radiation absorbed in living tissue. It is equal approximately to the absorbed dose delivered when the energy per unit mass imparted to matter by ionizing radiation is 1 Joule per kilogram. Gray = J/kg = m^2*s^(-2). |
| | henry | SI inductance measure. Symbol: H. One Henry is equivalent to one Volt divided by one Ampere per SecondDuration. If a current changing at the rate of one Ampere per SecondDuration induces an electromotive force of one Volt, the circuit has an inductance of one Henry. Henry = Wb/A = m^2*kg*s^(-2)*A^(-2). |
| | horsepower | A power measure that is equal to 746 Watts. |
| | instructions per second | The measure of the processing speed of a Computer's CPU. |
| | joule | SI energy measure. Symbol: J. It is the work done when the point of application of 1 Newton is displaced a distance of 1 Meter in the direction of the force. Joule = N*m = m^2*kg*s^(-2). |
| | kilogram force | (The kilogram-force (kgf or kgF), or kilopond (kp, from Latin: pondus, lit. 'weight'), is a non-standard gravitational metric unit of force. The kilogram-force is equal to the magnitude of the force exerted on one kilogram of mass in a 9.80665 m/s2 gravitational field.That is, it is the weight of a kilogram under standard gravity. One kilogram-force is defined as 9.80665 N. [Wikipedia] |
| | kilometer per hour | KiloMeterPerHour is a unit of speed, expressing the number of Kilometer travelled in one Hour.[Wikipedia]. |
| | kilowatt_hour | The KilowattHour is an energy measure unit. Symbol: kWh, kW h, or kWh. It is equal to energy 3600000 Joule which is equivalent of energy produced at 1000 Watt during one HourDuration. |
| | knot unit of speed | KnotUnitOfSpeed is a unit for measuring speed. One KnotUnitOfSpeed is equal to one NauticalMile per one HourDuration. |
| | lumen | SI luminous flux measure. Symbol: lm. It is the amount streaming outward through one solid angle of 1 Steradian from a uniform point source having an intensity of one Candela. Lumen = cd*sr = cd * 1. |
| | lux | SI illuminance measure. Symbol: lx. It is the amount of illumination provided when one Lumen is evenly distributed over an area of 1 square Meter. This is also equivalent to the illumination that would exist on a surface all points of which are one Meter from a point source of one Candela. Lux = lm/m^2 = m^(-2)*cd. |
| | Mach number | MachNumber is a measure of the compressbility characteristics of Fluid flow. It is a dimensionless Quantity in Fluid dynamics representing the ratio of air speed to the local speedOfSound. When the speed of sound is known, the Mach number at which an aircraft is flying can be calculated by the equation of M = u /c , where M is the Mach number, u is the velocity of the moving aircraft and c is the speed of sound at the given altitude and temperature. [Wikipedia] |
| | meter per second | MeterPerSecond is the unit for of both speed and velocity in the International System of Units (SI), equal to the speed of a body covering a distance of one metre in a time of one second. [Wikipedia]. |
| | micrograms per kilogram | McgPerKg refers to a microgram of BiologicallyActiveSubstance per Kilogram of the body weight of the Organism taking the Substance. |
| | miles per hour | MilesPerHour is a unit for measuring speed, expressed in the number of Miles travelled in a one HourDuration. |
| | newton | SI force measure. Symbol: N. It is that force which gives to a mass of 1 kilogram an acceleration of 1 Meter per SecondDuration. Newton = m*kg*s^(-2). |
| | ohm | SI electric resistance measure. It is the electric resistance between two points of a conductor when a constant difference of potential of 1 Volt, applied between these two points, produces in this conductor a current of 1 Ampere, this conductor not being the force of any electromotive force. Ohm = V/A = m^2*kg*s^(-3)*A^(-2). |
| | packets per second | The rate or speed of Packet_Networks transferred in a second. |
| | pascal | SI pressure measure. Symbol:Pa. It is the pressure of one Newton per square Meter. Pascal = N/m^2 = m^(-1)*kg*s^(-2). |
| | pound force | English pound of force. The conversion factor depends on the local value of the acceleration of free fall. A mean value is used in the conversion axiom associated with this constant. |
| | rad | A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material. |
| | revolutions per minute | The number of complete revolutions in one plane of motion for a given object. |
| | richter magnitude | A RichterMagnitude is a measure of the severity of an EarthTremor. For example, (MeasureFn 6.5 RichterMagnitude) denotes the value of 6.5 on the Richter scale. |
| | siemens | SI electric conductance measure. Symbol: S. In the case of direct current, the conductance in Siemens is the reciprocal of the resistance in Ohms, in the case of alternating current, it is the reciprocal of the impedance in ohms. siemens = A/V = m^(-2)*kg(-1)*s^(3)*A^2. |
| | sievert | SI dose equivalent measure. Symbol: Sv. It is a unit of biologic dose of ionizing radiation. The Sievert makes it possible to normalize doses of different types of radiation. It takes into account the relative biologic effectiveness of ionizing radiation, since each form of such radiation--e.g., X rays, gamma rays, neutrons-- has a slightly different effect on living tissue for a given absorbed dose. The dose equivalent of a given type of radiation (in Sievert) is the dose of the radiation in Gray multiplied by a quality factor that is based on the relative biologic effectiveness of the radiation. Accordingly, one Sievert is generally defined as the amount of radiation roughly equivalent in biologic effectiveness to one Gray of gamma radiation. Sievert = J/kg = m^2*s^(-2). |
| | tesla | SI magnetic flux density measure. Symbol: T. One Tesla equals one Weber per square Meter. Tesla = Wb/m^2 = kg*s^(-2)*A^(-1). |
| | Vickers pyramid number | (VickersPyramidNumber (HV) or Diamond Pyramid Hardness (DPH) is the unit of hardness given by Vickers Hardness test.The HV number is then determined by the ratio F/A, where F is the force applied to the diamond in KilogramForce and A is the surface area of the resulting indentation in square millimeters. Vickers hardness number (usually given without units), which is in fact one kilogram-force per square millimeter (1 kgf/mm2).[Wikipedia] |
| | volt | SI electric potential measure. Symbol: V. It is the difference of electric potential between two points of a conducting wire carrying a constant current of 1 Ampere, when the power dissipated between these points is equal to 1 Watt. Volt = W/A = m^2*kg*s^(-3)*A^(-1). |
| | watt | The Watt is an UnitOfPower. Symbol: W. One watt is equal to energy of one Joule produced during one second. |
| | weber | SI magnetic flux measure. Symbol: Wb. It is the magnetic flux which, linking a circuit of one turn, produces in it an electromotive force of 1 Volt as it is reduced to zero at a uniform rate in 1 SecondDuration. Weber = V*s = m^2*kg*s^(-2)*A^(-1). |