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Diffusion is the net
movement of
anything (for example, atoms, ions, molecules, energy)
generally from a
region of
higher concentration to a
region of...
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Diffusion of
innovations is a
theory that s****s to
explain how, why, and at what rate new
ideas and
technology spread.
Everett Rogers, a
professor of...
- Fick's laws of
diffusion describe diffusion and were
derived by
Adolf Fick in 1855. They can be used to
solve for the
diffusion coefficient, D. Fick's...
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Diffusion pumps use a high
speed jet of
vapor to
direct gas
molecules in the pump
throat down into the
bottom of the pump and out the exhaust. They were...
- The
diffusion equation is a
parabolic partial differential equation. In physics, it
describes the
macroscopic behavior of many micro-particles in Brownian...
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Diffusion-weighted
magnetic resonance imaging (DWI or DW-MRI) is the use of
specific MRI
sequences as well as
software that
generates images from the...
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Molecular diffusion,
often simply called diffusion, is the
thermal motion of all (liquid or gas)
particles at
temperatures above absolute zero. The rate...
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Diffusion current Density is a
current in a
semiconductor caused by the
diffusion of
charge carriers (holes and/or electrons). This is the
current which...
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Demic diffusion, as
opposed to trans-cultural
diffusion, is a
demographic term
referring to a
migratory model,
developed by
Luigi Luca Cavalli-Sforza...
- Diffusivity, m****
diffusivity or
diffusion coefficient is a
proportionality constant between the
molar flux due to
molecular diffusion and the
gradient in the...
