Gradient De Concentration

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• Gradient de concentration — Lorsque la concentration d un composé chimique ou d un ion est différente d un côté à l autre d une membrane, cela crée un gradient de concentration. Le gradient de concentration est indispensable à la cellule. La cellule utilise beaucoup d… …   Wikipédia en Français

• gradient — [ gradjɑ̃ ] n. m. • 1876; du rad. du lat. gradus « degré », d apr. quotient I ♦ Sc. Taux de variation (d une grandeur physique) en fonction de la distance. 1 ♦ Météor., géogr. Gradient de température : variation de la température en fonction de l …   Encyclopédie Universelle

• concentration gradient — noun a gradient in concentration of a solute as a function of distance through a solution the movement of a solute down its concentration gradient is called diffusion • Hypernyms: ↑gradient …   Useful english dictionary

• Gradient — Gra di*ent, n. 1. The rate of regular or graded ascent or descent in a road; grade. [1913 Webster] 2. A part of a road which slopes upward or downward; a portion of a way not level; a grade. [1913 Webster] 3. The rate of increase or decrease of a …   The Collaborative International Dictionary of English

• gradient maker — Gradient Gra di*ent, n. 1. The rate of regular or graded ascent or descent in a road; grade. [1913 Webster] 2. A part of a road which slopes upward or downward; a portion of a way not level; a grade. [1913 Webster] 3. The rate of increase or… …   The Collaborative International Dictionary of English

• Gradient post — Gradient Gra di*ent, n. 1. The rate of regular or graded ascent or descent in a road; grade. [1913 Webster] 2. A part of a road which slopes upward or downward; a portion of a way not level; a grade. [1913 Webster] 3. The rate of increase or… …   The Collaborative International Dictionary of English

• Gradient (disambiguation) — Gradient may refer to:* Gradient, in vector calculus, a vector field representing the maximum rate of increase of the scalar field direction of the maximum change. * Slope or grade, referring to the inclination of a road or other geographic… …   Wikipedia

• concentration gradient — koncentracijos gradientas statusas T sritis fizika atitikmenys: angl. concentration gradient vok. Konzentrationsgradient, m rus. градиент концентрации, m pranc. gradient de la concentration, m …   Fizikos terminų žodynas

• gradient de la concentration — koncentracijos gradientas statusas T sritis fizika atitikmenys: angl. concentration gradient vok. Konzentrationsgradient, m rus. градиент концентрации, m pranc. gradient de la concentration, m …   Fizikos terminų žodynas

• Concentration cell — A concentration cell is a limited form of a galvanic cell that has two equivalent half cells of the same material differing only in concentrations. One can calculate the potential developed by such a cell using the Nernst Equation. A… …   Wikipedia