polyhedral structure

См. также в других словарях:

• Polyhedral combinatorics — is a branch of mathematics, within combinatorics and discrete geometry, that studies the problems of counting and describing the faces of convex polyhedra and higher dimensional convex polytopes.A key question in polyhedral combinatorics is to… …   Wikipedia

• Polyhedral skeletal electron pair theory — In chemistry the polyhedral skeletal electron pair theory provides electron counting rules useful for predicting the structures of clusters such as borane and carborane clusters. The electron counting rules were originally formulated by Kenneth… …   Wikipedia

• Polyhedral space — In mathematics, specifically in metric geometry, a polyhedral space is a certain metric space. A (Euclidean) polyhedral space is a (usually finite) simplicial complex in which every simplex has a flat metric. (Other spaces of interest are… …   Wikipedia

• Soil structure — is determined by how individual soil granules clump or bind together and aggregate, and therefore, the arrangement of soil pores between them. Soil structure has a major influence on water and air movement, biological activity, root growth and… …   Wikipedia

• Weaire-Phelan structure — The Weaire Phelan structure is a complex 3 dimensional structure. In 1993, Denis Weaire and Robert Phelan, two physicists based at Trinity College Dublin found that in computer simulations of foam, this structure was a better solution of the… …   Wikipedia

• Kepler–Poinsot polyhedron — In geometry, a Kepler–Poinsot polyhedron is any of four regular star polyhedra. They may be obtained by stellating the regular convex dodecahedron and icosahedron, and differ from these in having regular pentagrammic faces or vertex figures.… …   Wikipedia

• capsid — capsid1 /kap sid/, n. the coiled or polyhedral structure, composed of proteins, that encloses the nucleic acid of a virus. Also called protein coat. [1960 65; < F capside, equiv. to L caps(a) CASE2 + ide ID1] capsid2 /kap sid/, n. See plant bu …   Universalium

• carborane — noun Any of a class of organic compounds of boron, mostly having a polyhedral structure. Syn: carbaborane …   Wiktionary

• capsid — cap•sid [[t]ˈkæp sɪd[/t]] n. mcr the coiled or polyhedral structure, composed of proteins, that encloses the nucleic acid of a virus Also called protein coat • Etymology: 1960–65; < F capside= L caps(a) case II+ ide id I …   From formal English to slang

• Polyhedron — Polyhedra redirects here. For the relational database system, see Polyhedra DBMS. For the game magazine, see Polyhedron (magazine). For the scientific journal, see Polyhedron (journal). Some Polyhedra Dodecahedron (Regular polyhedron) …   Wikipedia

• Periodic graph (crystallography) — For other uses, see Periodic graph. A (large) unit cell of Diamond crystal net; the balls represent carbon atoms and the sticks represent covalent bonds …   Wikipedia