diffusion pressure

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• diffusion pressure — difuzinis slėgis statusas T sritis fizika atitikmenys: angl. diffusion pressure vok. Diffusionsdruck, m rus. диффузионное давление, n pranc. pression de diffusion, f …   Fizikos terminų žodynas

• diffusion pressure deficit — noun : the algebraic sum of all the forces tending to cause water to move into a plant cell …   Useful english dictionary

• Diffusion capacity — Diagnostics MeSH D011653 In biology, diffusion capacity is a measurement of the lung s ability to transfer gases. Oxygen uptake may be limited by diffusion in circumstances of low ambient oxygen or high pul …   Wikipedia

• Diffusion creep — refers to the deformation of crystalline solids by the diffusion of vacancies through their crystal lattice.[1] Diffusion creep results in plastic deformation rather than brittle failure of the material. Diffusion creep is more sensitive to… …   Wikipedia

• Diffusion pump — Six inch oil diffusion pump. 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. Presented in 1915 by Wolfgang Gaede[1] and using mercury vapor, they were… …   Wikipedia

• Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …   Wikipedia

• Pressure Flow Hypothesis — The Pressure Flow Hypothesis, also known as the Mass Flow Hypothesis, is the best supported theory to explain the movement of food through the phloem.[1] It was proposed by Ernst Münch, a German plant physiologist in 1930.[2] A high concentration …   Wikipedia

• Diffusion welding — Animation of the Diffusion Welding process Diffusion welding (DFW) is a solid state welding process by which two metals (which may be dissimilar) can be bonded together. Diffusion involves the migration of atoms across the joint, due to… …   Wikipedia

• diffusion pump — noun vacuum pump used to obtain a high vacuum • Syn: ↑condensation pump • Hypernyms: ↑air pump, ↑vacuum pump * * * noun : a vacuum pump for producing extremely high vacuums by diffusing gas into a jet of vapor of mercury or some heavy oil by… …   Useful english dictionary

• diffusion coefficient — the number of milliliters of a gas that will diffuse at a distance of 0.001 mm over a square centimeter surface per minute, at 1 atm of pressure. The diffusion coefficient for any given gas is proportional to the solubility and molecular weight… …   Medical dictionary

• Suction pressure — The term diffusion pressure deficit (DPD) was coined by B.S Meyer in 1938. Originally DPD was described as suction pressure by Renner(1915). It is reduction in the diffusion pressure of water in solution or cell over its pure state due to… …   Wikipedia