field energy density

См. также в других словарях:

• Energy density — For energy density in the sense of energy per unit mass, see specific energy. For energy density of foods, see specific energy. Energy density is a term used for the amount of energy stored in a given system or region of space per unit volume.… …   Wikipedia

• Sound energy density — The sound energy density or sound density (symbol E or w ) is an adequate measure to describe the sound field at a given point as a sound energy value. The letter lower case w sign w is easily mixed with the sign omega (omega), therefore we… …   Wikipedia

• Distortion free energy density — The Distortion free energy density is a quantity that describes the distortion of a liquid crystal from its preferred state in which all of the liquid crystal molecules are aligned parallel to one common axis. It also commonly goes by the name… …   Wikipedia

• Orders of magnitude (specific energy density) — This is a table of specific energy densities by magnitude. Unless otherwise noted, these values assume standard ambient temperature and pressure. List of orders of magnitude for specific energy density Order of magnitude J/(kg) Specific energy… …   Wikipedia

• Energy harvesting — (also known as Power harvesting or energy scavenging ) is the process by which energy is captured and stored. Frequently this term is applied when speaking about small autonomous devices, like those used in sensor networks. A variety of different …   Wikipedia

• Density functional theory — Electronic structure methods Tight binding Nearly free electron model Hartree–Fock method Modern valence bond Generalized valence bond Møller–Plesset perturbation theory …   Wikipedia

• Energy condition — In relativistic classical field theories of gravitation, particularly general relativity, an energy condition is one of various alternative conditions which can be applied to the matter content of the theory, when it is either not possible or… …   Wikipedia

• Energy — This article is about the scalar physical quantity. For other uses, see Energy (disambiguation). Energetic redirects here. For other uses, see Energetic (disambiguation) …   Wikipedia

• Energy (signal processing) — In signal processing, the energy E s of a continuous time signal x ( t ) is defined as:E {s} = langle x(t), x(t) angle = int { infty}^{infty}{|x(t)|^2}dtenergy in this context is not, strictly speaking, the same as the conventional notion of… …   Wikipedia

• Density — This article is about mass density. For other uses, see Density (disambiguation). The mass density or density of a material is defined as its mass per unit volume. The symbol most often used for density is ρ (the Greek letter rho). In some cases… …   Wikipedia

• Field emission — (FE) is the emission of electrons from the surface of a condensed phase into another phase due to the presence of high electric fields. In this phenomenon, electrons with energies below the Fermi level tunnel through the potential barrier at the… …   Wikipedia