directional variation

См. также в других словарях:

• Directional Characteristic — F/A/V The variation in response or perception for different angles of sound incidence. (Acoustics) …   Audio and video glossary

• Power dividers and directional couplers — A 10 dB 1.7–2.2 GHz directional coupler. From left to right: input, coupled, isolated (terminated with a load), and transmitted port …   Wikipedia

• Antenna (radio) — Whip antenna on car …   Wikipedia

• Anisotropy — (pronounced with stress on the third syllable, IPAEng|ˌænaɪˈsɒtrəpi) is the property of being directionally dependent, as opposed to isotropy, which means homogeneity in all directions. It can be defined as a difference in a physical property… …   Wikipedia

• Crystallographic point group — In crystallography, a crystallographic point group is a set of symmetry operations, like rotations or reflections, that leave a central point fixed while moving other directions and faces of the crystal to the positions of features of the same… …   Wikipedia

• evolution — evolutional, adj. evolutionally, adv. /ev euh looh sheuhn/ or, esp. Brit., /ee veuh /, n. 1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane. 2. a product of such development; something… …   Universalium

• Derivative — This article is an overview of the term as used in calculus. For a less technical overview of the subject, see Differential calculus. For other uses, see Derivative (disambiguation) …   Wikipedia

• Natural selection — For other uses, see Natural Selection (disambiguation). Part of a series on Evolutionary Biology …   Wikipedia

• Mapping of Unicode characters — Unicode’s Universal Character Set has a potential capacity to support over 1 million characters. Each UCS character is mapped to a code point which is an integer between 0 and 1,114,111 used to represent each character within the internal logic… …   Wikipedia

• Evolution — This article is about evolution in biology. For other uses, see Evolution (disambiguation). For a generally accessible and less technical introduction to the topic, see Introduction to evolution. Part of a series on …   Wikipedia

• Pipil grammar — This article provides a grammar sketch of the Nawat or Pipil language, an endangered language spoken by the Pipils of western El Salvador, belonging to the Nahua group within the Uto Aztecan language family. There also exists a brief typological… …   Wikipedia