Dispersion

Dispersion may refer to:

In physics:

  • The dependence of wave velocity on frequency or wavelength:
    • Dispersion (optics), for light waves
    • Dispersion (water waves)
    • Acoustic dispersion, for sound waves
    • Dispersion relation, the mathematical description of dispersion in a system
    • Modal dispersion, spreading of signals in multimode fibers and waveguides by a distortion mechanism
      • Polarization mode dispersion, a form of modal dispersion
    • Dielectric dispersion, the dependence of the permittivity of a dielectric material on the frequency of an applied electric field
  • Dispersive mass transfer, in fluid dynamics, the spreading of mass from areas of high to low concentration
    • Atmospheric dispersion modeling, mathematical simulation of how air pollutants disperse in the ambient atmosphere
  • London dispersion force, an instantaneous induced dipole-induced dipole

In other sciences:

  • Biological dispersal, the distribution of animals, spores, fruits and their seeds, etc.
  • Dispersion (chemistry), a system in which particles are dispersed in a continuous phase of a different composition
  • Dispersion (geology), a process whereby sodic soil disperses when exposed to water
  • Dispersion (materials science), the fraction of atoms of a material exposed to the surface
  • Velocity dispersion, the statistical variation of velocities about the mean velocity for a group of astronomical objects

Other uses:

  • Dispersion (finance), a measure for the statistical distribution of portfolio returns
  • Statistical dispersion, a quantifiable variation of measurements of differing members of a population
    • Index of dispersion, a normalized measure of the dispersion of a probability distribution
  • Price dispersion, a variation in prices across sellers of the same item
  • Wage dispersion, the amount of variation in wages encountered in an economy

Other articles related to "dispersion":

Multiple-prism Dispersion Theory - Intracavity Dispersion and Laser Linewidth
... The total intracavity angular dispersion plays an important role in the linewidth narrowing of pulsed tunable lasers through the equation where is the beam divergence ... For the special case of zero dispersion from the multiple-prism beam expander, the single-pass laser linewidth is given by where M is the beam magnification ... When the dispersion of the multiple-prism expander is not equal to zero, then the single-pass linewidth is given by where the first differential refers to the ...
Low Dispersion Glass
... Low dispersion glass (LD glass) is a type of glass with low dispersion ... Crown glass is an example of a relatively inexpensive low-dispersion glass ... Special low dispersion glass (SLD glass) and extraordinary low dispersion glass (ELD glass) are glasses with yet lower dispersion (and yet higher price) ...
Turbulent Diffusion - See Also
... Turbulence Atmospheric dispersion modeling Air pollution dispersion terminology List of atmospheric dispersion models Fundamentals of Stack Gas Dispersion Diffusion flame Fick's laws of diffusion Planar laser-induce ...
AUSTAL2000
... Austal2000 is an atmospheric dispersion model for simulating the dispersion of air pollutants in the ambient atmosphere ...
Low Dispersion Glass - Application
... Low dispersion glasses are particularly used to reduce chromatic aberration, most often used in achromatic doublets ... The positive element is made of a low-dispersion glass, the negative element from a high-dispersion glass ... shorter focal length objectives benefit less from low dispersion elements, as their chief problem is spherical aberration instead of chromatic aberration ...

Famous quotes containing the word dispersion:

    The slogan offers a counterweight to the general dispersion of thought by holding it fast to a single, utterly succinct and unforgettable expression, one which usually inspires men to immediate action. It abolishes reflection: the slogan does not argue, it asserts and commands.
    Johan Huizinga (1872–1945)