diagonal surface
41Œil de poisson — Objectif fisheye Cet article fait partie de la série Photographie …
42DeFRaG — For other uses, see Defrag (disambiguation). DeFRaG All maps share the common objective of finishing in the fastest time possible. Developer(s) DeFRaG team …
43Principal component analysis — PCA of a multivariate Gaussian distribution centered at (1,3) with a standard deviation of 3 in roughly the (0.878, 0.478) direction and of 1 in the orthogonal direction. The vectors shown are the eigenvectors of the covariance matrix scaled by… …
44Seismic retrofit — Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Other retrofit techniques are applicable to areas subject to tropical cyclones,… …
45Color balance — This article is about the process applied to still images. For the equivalent process applied to video, see Color grading. The left half shows the photo as it came from the digital camera. The right half shows the photo adjusted to make a gray… …
46Octahedral symmetry — The cube is the most common shape with octahedral symmetry A regular octahedron has 24 rotational (or orientation preserving) symmetries, and a symmetry order of 48 including transformations that combine a reflection and a rotation. A cube has… …
47More O'Ferrall-Jencks plot — More O’Ferrall Jencks plots are two dimensional representations of multiple reaction coordinate potential energy surfaces for chemical reactions that involve simultaneous changes in two bonds. As such, they are a useful tool to explain or predict …
48band — 1. Any appliance or part of an apparatus that encircles or binds a part of the body. SEE ALSO: zone. 2. Any ribbon shaped or cordlike anatomic structure that encircles or binds another structure or that connects two or more parts. See fascia,… …
49Section — 1) In anatomy, a slice of tissue. A biopsy obtained by surgery is usually sectioned (sliced), and these sections are inspected under a microscope. 2) In obstetrics, short for Caesarian section. 3) In surgery, the division of tissue during an… …
50solids, mechanics of — ▪ physics Introduction science concerned with the stressing (stress), deformation (deformation and flow), and failure of solid materials and structures. What, then, is a solid? Any material, fluid or solid, can support normal forces.… …
