emission processes

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• emission control — emission control, regulation of the amount of pollutants released into the air, as from the exhaust of a motor vehicle, the smoke from manufacturing processes of a factory, or the heat from air conditioning units of a building: »Emission… …   Useful english dictionary

• Emission inventory — An emission inventory is an accounting of the amount of pollutants discharged into the atmosphere. An emission inventory usually contains the total emissions for one or more specirfic greenhouse gases or air pollutants, originating from all… …   Wikipedia

• Emission factor — An emission factor can be defined as the average emission rate of a given pollutant for a given source, relative to the intensity of a specific activity. Emission factors are used to derive estimates of air pollutant or greenhouse gas emissions… …   Wikipedia

• Spontaneous emission — is the process by which a light source such as an atom, molecule, nanocrystal or nucleus in an excited state undergoes a transition to the ground state and emits a photon. Spontaneous emission of light or luminescence is a fundamental process… …   Wikipedia

• Soft X-ray emission spectroscopy — is an experimental technique for determining the electronic structure of materials. It is a form of X ray spectroscopy.UsesX ray emission spectroscopy (XES) provides a means of probing the partial occupied density of electronic states of a… …   Wikipedia

• Photoelectrochemical processes — Photons emitted in a coherent beam from a laser Composition {{{composition}}} Interactions Electromagnetic, Optical, C …   Wikipedia

• Mechanically Stimulated Gas Emission — Contents 1 Phenomenology 2 Terminology 3 Experimental observations 4 References 5 …   Wikipedia

• Positron emission tomography — (PET) is a nuclear medicine imaging technique which produces a three dimensional image or map of functional processes in the body. The system detects pairs of gamma rays emitted indirectly by a positron emitting radionuclide (tracer), which is… …   Wikipedia

• Proton emission — (also known as proton radioactivity) is a type of radioactive decay in which a proton is ejected from a nucleus. The decay of a proton rich nucleus A populates excited states of a daughter nucleus B by β+ emission or electron capture (EC). Those… …   Wikipedia

• Neutron emission — Neutron emitters to left of lower dashed line Z → 0 1 2 n ↓ n H He 3 4 0 1H Li Be 5 6 1 …   Wikipedia

• Field electron emission — It is requested that a diagram or diagrams be included in this article to improve its quality. For more information, refer to discussion on this page and/or the listing at Wikipedia:Requested images. Field emission (FE) (also known as field… …   Wikipedia