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Mass flow, numerical dispersion and diffusion
1993If water containing dissolved salts (e.g. fertilizer) infiltrates into the soil, a gradual increase in salt concentration will be observed at a certain depth. The curve of the change in salt concentration against time at a certain depth is called the breakthrough curve. The rounded shape of this curve can partly be explained by diffusion of the salt in
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An asymptomatic diffuse palatal mass
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology, 2018Ahmed S, Sultan, Sook-Bin, Woo
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An Aggressive Diffuse Supraorbital Mass
JAMA Otolaryngology–Head & Neck Surgery, 2019Cang T, Nguyen +2 more
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Heat conduction and mass diffusion
1998In this chapter we will deal with steady-state and transient (or non steady-state) heat conduction in quiescent media, which occurs mostly in solid bodies. In the first section the basic differential equations for the temperature field will be derived, by combining the law of energy conservation with Fourier’s law.
Hans Dieter Baehr, Karl Stephan
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Mass Transfer by Diffusion and Convection
2018Transfer of mass, in the sense of chemical or biological species, is the third and last physical mechanism we encounter: with the analysis of diffusion and mass convection a preliminary outlook on transfer phenomena is completed. Strong similarities exist between heat and species transport: we will use our acquired knowledge to describe the species ...
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Mass Transport by Diffusion and Migration
2016Whenever the concentration of a species j like \(\left [H^{+}\right ]\) becomes the rate controlling, an electrochemical cell is cathodically polarized. This is attributed to the cathodic reactions due to ionic mass transfer [1]. In this case, the concentration of the species j at the cathode electrode surface is lower than the bulk concentration ...
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Diffuse Hyperpigmentation in a Patient With an Axillary Mass
JAMA Oncology, 2019Shruti, Bhandari +2 more
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