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EPANET's computational engine is available for download as a separate dynamic link library for incorporation into other applications. [7] The source code for EPANET 2 is available on the EPA's EPANET website. [8] In 2012, Baseform released a rewrite of the EPANET toolkit in Java under the GNU GPLv3 license. [9]
Unit prefixes are common base-10 or base-2 powers multiples and submultiples of units. While a base unit is one that has been explicitly so designated, [2] a derived unit is unit for a derived quantity, involving the combination of quantities with different units; [1] several SI derived units are specially named.
"The kelvin, symbol K, is the SI unit of thermodynamic temperature. It is defined by taking the fixed numerical value of the Boltzmann constant k to be 1.380 649 × 10 −23 when expressed in the unit J K −1, which is equal to kg m 2 s −2 K −1, where the kilogram, metre and second are defined in terms of h, c and ∆ν Cs." [1]
The base stock model is a statistical model in inventory theory. [1] In this model inventory is refilled one unit at a time and demand is random . If there is only one replenishment, then the problem can be solved with the newsvendor model .
The base load [2] (also baseload) is the minimum level of demand on an electrical grid over a span of time, for example, one week. This demand can be met by unvarying power plants [ 3 ] or dispatchable generation , [ 4 ] depending on which approach has the best mix of cost, availability and reliability in any particular market.
The theory of the least objectionable program (LOP) is a mediological theory explaining television audience behavior. [1] It was developed in the 1960s by then executive of audience measurement at NBC , Paul L. Klein , [ 2 ] [ 3 ] who was greatly influenced by the media theorist Marshall McLuhan 's Understanding Media .
The unit commitment problem (UC) in electrical power production is a large family of mathematical optimization problems where the production of a set of electrical generators is coordinated in order to achieve some common target, usually either matching the energy demand at minimum cost or maximizing revenue from electricity production.
In economics, a unit demand agent is an agent who wants to buy a single item, which may be of one of different types. A typical example is a buyer who needs a new car. There are many different types of cars, but usually a buyer will choose only one of them, based on the quality and the