section gradient
1Gradient geothermique — Gradient géothermique On nomme gradient géothermique l augmentation de température constatée dans le sous sol à mesure que l on s éloigne de la surface. Le gradient moyen en Europe est d environ 1°C tous les 33 mètres. Sommaire 1 Cause 2 Origine… …
2Gradient géothermique — On nomme gradient géothermique l augmentation de température constatée dans le sous sol à mesure que l on s éloigne de la surface. Le gradient moyen en Europe est d environ 1°C tous les 33 mètres, soit 3.3°C tous les 100 mètres. Sommaire 1 Cause… …
3Ruling gradient — The ruling gradient (or ruling grade) of a section of railway line is the steepest section of that line. The ruling gradient is important in assigning locomotives to trains, as the locomotives must have sufficient power to pull the train over the …
4Drainage gradient — Water pooling at the entrance of a banked outercurve in the opposite lane (Photo taken in Sweden) Drainage gradient (DG) is a term in road technology, defining the resulting vector of a road surface cross slope (CS) and longitudinal gradient… …
5Wind gradient — In common usage, wind gradient, more specifically wind speed gradientcite book | last = Hadlock | first = Charles | title = Mathematical Modeling in the Environment | publisher = Mathematical Association of America | location = Washington | year …
6Nonlinear conjugate gradient method — In numerical optimization, the nonlinear conjugate gradient method generalizes the conjugate gradient method to nonlinear optimization. For a quadratic function : The minimum of f is obtained when the gradient is 0: . Whereas linear conjugate… …
7Conjugate gradient method — A comparison of the convergence of gradient descent with optimal step size (in green) and conjugate vector (in red) for minimizing a quadratic function associated with a given linear system. Conjugate gradient, assuming exact arithmetic,… …
8Histogramme de gradient orienté — Une image de piéton (gauche) et son gradient (droite) Un histogramme de gradient orienté (HOG) est une caractéristique utilisée en vision par ordinateur pour la détection d objet. La technique calcule des histogrammes locaux de l orientation du… …
9Multicolumn countercurrent solvent gradient purification — (MCSGP) is a form of chromatography that is used to separate or purify biomolecules from complex mixtures. It was developed at the Swiss Federal Institute of Technology Zürich by Aumann and Morbidelli.[1] The process consists of three to six… …
10Curvilinear coordinates — Curvilinear, affine, and Cartesian coordinates in two dimensional space Curvilinear coordinates are a coordinate system for Euclidean space in which the coordinate lines may be curved. These coordinates may be derived from a set of Cartesian… …
