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In particular, if there is a Content Dictionary Group whose name is, for example, `math' containing Content Dictionaries named `math1', `math2' etc., then you should not name a derived Content Dictionary `mathN' where N is an integer. However you are free to name it `private_mathN' or some such. This is because the names `mathN' may be used by the OpenMath Society for future extensions. c) The derived work is distributed under terms that allow the compilation of derived works, but keep paragraphs a) and b) intact. The simplest way to do this is to distribute the derived work under the OpenMath license, but this is not a requirement. If you have questions about this license please contact the OpenMath society at http://www.openmath.org. Author: Joseph B. Collins (2009), Naval Research Laboratory, Washington, DC. Copyright Notice: This is a work of the U.S. Government and is not subject to copyright protection in the United States. Foreign copyrights may apply. SI_DerivedQuantities1 http://www.openmath.org/cd/SI_DerivedQuantities1.ocd 2009-04-01 experimental 2009-01-10 1 0 angle constant This symbol represents the quantity of a geometric planar angle. A variable representing an arbitrary quantity of angle is commonly represented with the italic, lower case greek variable, e.g., "\theta;". dim(angle) = one solid angle constant This symbol represents the quantity of a two dimensional, geometric solid angle. A variable representing an arbitrary quantity of solid angle is commonly represented with the italic, upper case greek variable, "\Omega;". dim(solid angle) = one frequency constant This symbol represents the physical quantity of frequency. A variable representing an arbitrary quantity of frequency is commonly represented with the italic, lower case greek variable, "\omega;". dim(frequency) = one/time force constant This symbol represents the physical quantity of force. A variable representing an arbitrary quantity of force is commonly represented with the italic, upper case letter, "F". dim(force) = mass*length/(time^2) 2 pressure constant This symbol represents the physical quantity of pressure. A variable representing an arbitrary quantity of pressure is commonly represented with the italic, lower case letter, "p". dim(pressure) = dim(force)/dim(area) = mass/(length*time*time) energy constant This symbol represents the physical quantity of energy. A variable representing an arbitrary quantity of energy is commonly represented with the italic, upper case letter, "E". dim(energy) = dim(force)*length = mass*length^2/(time^2) power constant This symbol represents the physical quantity of power, or energy divided by time. A variable representing an arbitrary quantity of power is commonly represented with the italic, upper case letter, "P". dim(power) = dim(energy)/time = mass*length^2/(time^3) charge constant This symbol represents the physical quantity of electric charge. A variable representing an arbitrary quantity of charge is commonly represented with the italic, upper case letter, "Q". dim(charge) = current*time voltage constant This symbol represents the physical quantity of voltage or electric tension. A variable representing an arbitrary quantity of voltage is commonly represented with the italic, upper case letter, "V". dim(voltage) = dim(energy/charge) = mass*length^2/(current*time^3) capacitance constant This symbol represents the physical quantity of electric capacitance. A variable representing an arbitrary quantity of capacitance is commonly represented with the italic, upper case letter, "C". dim(capacitance) = dim(charge/voltage) = current^2*time^4/(mass*length^2) resistance constant This symbol represents the physical quantity of electrical resistance, the resistance that an electrical circuit has to electrical current. A variable representing an arbitrary quantity of electrical resistance is commonly represented with the italic, upper case letter, "R". dim(resistance) = dim(voltage/current) = mass*length^2/(current^2*time^3) conductance constant This symbol represents the physical quantity of electrical conductance, the inverse of resistance. A variable representing an arbitrary quantity of conductance is commonly represented with the italic, upper case letter, "G" or "S". dim(conductance) = dim(current/voltage) = current^2*time^3/(mass*length^2) magnetic flux constant This symbol represents the physical quantity of magnetic flux. A variable representing an arbitrary quantity of magnetic flux is commonly represented with the italic, upper case greek letter, "\Phi;". dim(magnetic flux) = dim(energy/current) = mass*length^2/(current*time^2) magnetic flux density constant This symbol represents the physical quantity of magnetic flux density. A variable representing an arbitrary quantity of magnetic flux density is commonly represented with the italic, upper case letter, "B". dim(magnetic flux density) = dim(magnetic flux)/(length^2) = mass/(current*time^2) 2 inductance constant This symbol represents the physical quantity of electrical inductance. A variable representing an arbitrary quantity of inductance is commonly represented with the italic, upper case letter, "L". dim(inductance) = dim(voltage)*time/current = mass*length^2/(current^2*time^2) Celsius temperature constant This symbol represents the physical quantity of Celsius temperature. A variable representing an arbitrary quantity of temperature is commonly represented with the italic, upper case letter, "T". dim(Celsius temperature) = temperature num(Celsius temperature) + 273.15 = num(temperature) luminous flux constant This symbol represents the physical quantity of luminous flux. A variable representing an arbitrary quantity of luminous flux is commonly represented with the italic, upper case letter, "Φv" (\phi; sub V). dim(luminous flux) = (luminous intensity)*dim(solid angle) = (luminous intensity) illuminance constant This symbol represents the physical quantity of illuminance. A variable representing an arbitrary quantity of illuminance is commonly represented with the italic, upper case letter, "E". dim(illuminance) = dim(luminous flux)/(length^2) = (luminous intensity)/(length^2) radioactivity constant This symbol represents the physical quantity of radio nuclide activity, or radioactivity. A variable representing an arbitrary quantity of radioactivity is commonly represented with the italic, upper case letter, "A". dim(radioactivity) = dim(1/time) 1 absorbed dose constant This symbol represents the physical quantity of absorbed dose of ionizing radiation. A variable representing an arbitrary quantity of absorbed dose is commonly represented with the italic, upper case letter, "D". dim(absorbed dose) = dim(energy/mass) equivalent dose constant This symbol represents the physical quantity of equivalent dose of ionizing radiation. Equivalent dose is similar to absorbed dose but is weighted to reflect differing biological effects and different radiation types. A variable representing an arbitrary quantity of equivalent dose is commonly represented with the italic, upper case letter, "H". dim(equivalent dose) = dim(energy/mass) catalytic activity constant This symbol represents the physical quantity of catalytic activity, an amount of catalyst that effects a rate of catalytic conversion of an amount of substance. dim(catalytic activity) = (amount of substance)/time area constant This symbol represents the physical quantity of area. dim(area) = length*length volume constant This symbol represents the physical quantity of volume. It has the short symbol form, "V". dim(volume) = length^3 3 speed constant This symbol represents the physical quantity of speed. It is the size of the derivative of position with respect to time. dim(speed) = length/time momentum constant This symbol represents the physical quantity of momentum. dim(momentum) = mass*length/time moment of force constant This symbol represents the physical quantity of force. dim(moment of force) = length*dim(force) = mass*length^2/(time^2) density constant This symbol represents the physical quantity of volumic mass density. dim(density) = mass/(length^3) 3 concentration constant This symbol represents the physical quantity of concentration, the amount of a substance in a volume. dim(concentration) = (amount of substance)/length^3 3 heat constant This symbol represents the physical quantity of energy that is transferred from one object to another due to a difference in temperature. dim(heat) = dim(energy) = mass*length^2/(time^2) entropy constant This symbol represents the physical quantity of entropy, a measure of the disorder of a system. dim(entropy) = dim(energy/temperature)