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Turbulent diffusion is the transport of mass, heat, or momentum within a system due to random and chaotic time dependent motions. [1] It occurs when turbulent fluid systems reach critical conditions in response to shear flow , which results from a combination of steep concentration gradients, density gradients, and high velocities.
Facilitated diffusion may occur through three mechanisms: uniport, symport, or antiport. The difference between each mechanism depends on the direction of transport, in which uniport is the only transport not coupled to the transport of another solute. [4] Uniporter carrier proteins work by binding to one molecule or substrate at a time ...
The convection–diffusion equation can be derived in a straightforward way [4] from the continuity equation, which states that the rate of change for a scalar quantity in a differential control volume is given by flow and diffusion into and out of that part of the system along with any generation or consumption inside the control volume: + =, where j is the total flux and R is a net ...
Passive diffusion across a cell membrane.. Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes. [1] [2] Instead of using cellular energy, like active transport, [3] passive transport relies on the second law of thermodynamics to drive the movement of substances across cell membranes.
The resulting system of linear algebraic equations Linear equation can then be solved to obtain at the nodal points. The matrix of higher order can be solved in MATLAB. This method can also be applied to a 2D situation. See Finite volume method for two dimensional diffusion problem.
Balochistan [1] (Balochi: گۏریچی بلۏچستان) or Afghan Baluchistan is an arid, mountainous region that includes part of southern and southwestern Afghanistan. It extends into southeastern Iran and western Pakistan and is named after the Baloch of Afghanistan .
The Orange Line Metro Train is an automated rapid transit system in Lahore. [ 14 ] [ 15 ] The Orange line is the first of the three proposed rail lines proposed for the Lahore Metro . The line spans 27.1 km (16.8 mi) with 25.4 km (15.8 mi) elevated and 1.72 km (1.1 mi) underground and have a cost of 251.06 billion Rupees ($1.6 billion). [ 16 ]
Facilitated diffusion in cell membrane, showing ion channels and carrier proteins. Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins. [1]