dispersion

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dispersion

 [dis-per´zhun]
1. the act of scattering or separating; the condition of being scattered.
2. the incorporation of the particles of one substance into the body of another, comprising solutions, suspensions, and colloid systems.
3. a colloid system, particularly an unstable one.

dis·per·sion

(dis-pĕr'zhŭn),
1. The act of dispersing or of being dispersed. Synonym(s): dispersal
2. Incorporation of the particles of one substance into the mass of another, including solutions, suspensions, and colloidal dispersions (solutions).
3. Specifically, what is usually called a colloidal solution.
4. The extent or degree in which values of a statistical frequency distribution are scattered about a mean or median value.
[L. dispersio]

dispersion

/dis·per·sion/ (-per´zhun)
1. the act of scattering or separating; the condition of being scattered.
2. the incorporation of the particles of one substance into the body of another, comprising solutions, suspensions, and colloid systems; used particularly for an unstable colloid system. See colloid (2).

dispersion

[dispur′shən]
the scattering or dissipation of finely divided material, as when particles of a substance are scattered throughout the volume of a fluid. Examples include colloids and gels, such as egg white, soap, and gelatin, which consist of large molecules or clumps of molecules that are able to attract and hold large numbers of water molecules.

dis·per·sion

(dis-pĕr'zhŭn)
1. The act of dispersing or of being dispersed.
2. Incorporation of the particles of one substance into the mass of another, including solutions, suspensions, and colloidal dispersions (solutions).
3. Specifically, what is usually called a colloidal solution
4. The extent or degree to which values of a statistical frequency distribution are scattered about a mean or median value.
[L. dispersio]

dispersion

the distribution of individual organisms once any DISPERSAL has taken place. For example, organisms may be randomly dispersed, under-dispersed (aggregated) or over-dispersed (as in territorial animals). Dispersion should not be confused with DISTRIBUTION which normally refers to a species as a whole and not to individuals.

dispersion

Phenomenon of the change in velocity of propagation of radiation in a medium, as a function of its frequency, which causes a separation of the monochromatic components of a complex radiation. All optical media cause dispersion by virtue of their variation of refractive index with wavelengths. Dispersion is specified by the difference in the refractive index of the medium for two wavelengths. The difference between the blue F (486.1 nm) and the red C (656.3 nm) spectral lines is called the mean dispersion, i.e. nFnC. Dispersion is usually represented by its dispersive power ω or relative dispersion which is equal to the mean dispersion divided by the excess refractive index of the helium d (587.6 nm) spectral line (nd − 1), often called the refractivity of the material,
ω = nFnC/nd − 1
The reciprocal of the dispersive power is called the Abbé's number or constringence (Fig. D8). See aberration longitudinal chromatic; achromatic axis; Fraunhoffer's lines; achromatic prism.
Fig. D8 Dispersion of a white beam of light by a prismenlarge picture
Fig. D8 Dispersion of a white beam of light by a prism

dis·per·sion

(dis-pĕr'zhŭn)
1. Dispersing or being dispersed.
2. Incorporation of the particles of one substance into the mass of another, including solutions, suspensions, and colloidal dispersions (solutions).
3. Specifically, what is usually called a colloidal solution
[L. dispersio]

dispersion

1. the act of scattering or separating; the condition of being scattered.
2. the incorporation of one substance into another.
3. a colloid solution.
References in periodicals archive ?
2) Dispersion-shifted fiber in L-band:Dispersion-shifted fiber (DSF) is a type of single-mode optical fiber that is tailored to shift the zero-dispersion wavelength from 1,310 nm to 1,550 nm, a wavelength in which the transmission loss is smaller.
Compared to other non-zero dispersion-shifted fibers, LEAF fiber, with its large effective area, allows higher levels of optical power to be transmitted while minimizing nonlinear impairments that can degrade transmission-system performance.
Comparing demand and capacity, this report deals with the additional 15-20-million fiber-km growth per year in the amount of fiber being installed as well as the increased demand for non-zero dispersion-shifted fiber (NZDF).
Musser also will announce that Corning has enhanced LEAF(R) fiber, the world's most widely deployed non-zero dispersion-shifted fiber (NZ-DSF), by providing low water peak attenuation, including post-hydrogen aging.
Global Crossing utilizes the most advanced, non-zero dispersion-shifted fiber.
Corning LEAF fiber, the world's most widely deployed non-zero dispersion-shifted fiber (NZ-DSF), is a G.