Results 251 to 260 of about 3,127,055 (267)
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Diffuse Panbronchiolitis

Seminars in Respiratory and Critical Care Medicine, 2003
Diffuse panbronchiolitis (DPB) was first distinguished from chronic obstructive pulmonary diseases in the early 1960s and recorded as a new clinicopathologic entity. This disease affects East Asians for the major part, and is characterized by chronic sinobronchial infection together with diffuse bilateral micronodular pulmonary lesions consisting of ...
Shoji, Kudoh, Naoto, Keicho
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Diffusion

2002
We may describe multicomponent diffusion by (1) the Maxwell–Stefan equation where flows and forces are mixed, (2) the Chapman–Cowling and Hirschfelder-Curtiss-Bird approaches where the diffusion of all the components are treated in a similar way, and (3) reference to a particular component, for example, the solvent or mass average (barycentric ...
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Diffusion, the Diffusion Coefficient, and Mechanisms of Diffusion

1970
Diffusion is the way in which matter is transported through matter. It occurs by approximately random motions of the atoms in a crystal lattice. The net result of many such random movements of a large number of atoms is actual displacement of matter, the movement being activated by the thermal energy of the crystal.
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Diffusive Search for Diffusing Targets with Fluctuating Diffusivity and Gating

Journal of Nonlinear Science, 2019
The time that it takes a diffusing particle to find a small target has emerged as a critical quantity in many systems in molecular and cellular biology. In this paper, we extend the theory for calculating this time to account for several ubiquitous biological features which have largely been ignored in the mathematics and physics literature on this ...
Sean D. Lawley, Christopher E. Miles
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Gas Diffusivity

2002
In general, the diffusion velocities of gas mixtures in porous media are related to each other in a complex manner dependent upon the mole fraction of each gas, the molar fluxes of each gas, and the binary diffusion coefficient of each gas pair. Soil-type effects on gas diffusivity in sieved and repacked soils appear to be minor and can probably be ...
Rolston, D. E., Møldrup, Per
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The Diffusibility of Diffusion [PDF]

open access: possibleThe Journal of Experimental Education, 1980
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From Diffusion to the Diffusion Tensor

2016
The term “diffusion tensor imaging” (DTI) is used on many occasions to informally refer to anything related to diffusion-weighted imaging (DWI). From a formal point of view, however, DTI is the practice of fitting a tensor model to the DWI data. It is one of the simplest ways to model the DWI data that accounts, up to some extent, for the anisotropy in
Thijs Dhollander, Thijs Dhollander
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