A function which specifies the average density of atoms, molecules etc in three dimensions from a given point

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• Radial distribution function — In computational mechanics and statistical mechanics, a radial distribution function (RDF), g ( r ), describes how the density of surrounding matter varies as a function of the distance from a distinguished point.Suppose, for example, that we… …   Wikipedia

• Pair distribution function — The atomic pair distribution function (PDF) describes the density of interatomic distances in a material. Of special practical importance is the radial pair distribution function, which is independent of orientation. It is a major descriptor for… …   Wikipedia

• Correlation function — For other uses, see Correlation function (disambiguation). A correlation function is the correlation between random variables at two different points in space or time, usually as a function of the spatial or temporal distance between the points.… …   Wikipedia

• Correlation function (statistical mechanics) — For other uses, see Correlation function (disambiguation). In statistical mechanics, the correlation function is a measure of the order in a system, as characterized by a mathematical correlation function, and describes how microscopic variables… …   Wikipedia

• Distribution mangagement system — SCADA systems have been a part of utility automation for at least 15 years and contributing to the decision making process of the control rooms. However, majority of the existing solutions are closely related to distribution network data… …   Wikipedia

• Multivariate stable distribution — multivariate stable Probability density function Heatmap showing a Multivariate (bivariate) stable distribution with α = 1.1 parameters: exponent shift/location vector …   Wikipedia

• Point spread function — The point spread function (PSF) describes the response of an imaging system to a point source or point object. A related but more general term for the PSF is a system s impulse response. The PSF in many contexts can be thought of as the extended… …   Wikipedia

• Electricity distribution — is the penultimate stage in the delivery (before retail) of electricity to end users. It is generally considered to include medium voltage (less than 50 kV) power lines, electrical substations and pole mounted transformers, low voltage (less than …   Wikipedia

• liquid — liquidly, adv. liquidness, n. /lik wid/, adj. 1. composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid. 2. of, pertaining to, or consisting of liquids: a liquid diet. 3 …   Universalium

• Hypernetted-chain equation — In statistical mechanics the hypernetted chain equation is a closure relation to solve the Ornstein–Zernike equation which relates the direct correlation function to the total correlation function. It is commonly used in fluid theory to obtain… …   Wikipedia