P_3 approximation theory considering phase function,which is the high-order approximation of light transport theory, can describe theradiance in highly absorbing media or close to sources with accuracy superior to thatof diffusion theory.
Aqueous and organic solvent extracts tested by agar-well diffusion method against 12 human pathogenic bacteria and 3 fungal strains showed activity to most of the organisms.
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The Alternating Segment Crank-Nicolson scheme for one-dimensional diffusion equation has been developed in [1], and the Alternating Block Crank-Nicolson method for two-dimensional problem in [2].
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In this paper for the two-dimensional diffusion equation, the net region is divided into bands, a special kind of block.
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This paper analyses a mathematical model of the pattern formation on the shell of molluscs which is actually a kind of reaction-diffusion system.
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Exact solutions for Belousov-Zhabotinskii reaction-diffusion system
Equations determining the velocity and density distributions within the mixing region of two incompressible gases with different densities are set up, their temperatures being assumed to be the same. For incompressible mixing the total number of gas molecules per unit volume is constant, although the density of the gaseous mixture varies from point to point due to diffusion of matter. As an illustration we consider the plane jet and steady motion. The boundary layer method of approximation can still b...
It is well-known that the stress-induced rotation of the magnetic domains in nickel gives rise to an internal friction peak (when internal friction is plotted as a function of temperature of measurement). An internal friction peak associated with the presence of carbon in nickel was recently observed in our laboratory. In this paper are described further experiments which demonstrate conclusively that this new internal friction peak is not connected with ferromagnetism of nickel but depends upon the amount ...
It is now well-established that stress-induced micro-diffusion of carbon atoms in the interstitial lattice points will take place in body-centred cubic lattices such as in α-iron. This is the result of the lattice asymmetry introduced by an oscillating strain in the crystal. In a pure face-centred cubic metal, this phenomenon could not happen, namely, not in -γ-iron. Nevertheless experimental evidences show to the contrary.