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penetration distance

См. также в других словарях:

  • Penetration diving — or no clear surface diving is a type of diving where the scuba diver enters a space from which there is no direct, purely vertical ascent to the safety of breathable air of the atmosphere at the surface. Several types of dive meet this condition …   Wikipedia

  • Distance line — 50 metres of line on a reel A distance line, penetration line or guideline is an item of diving equipment used by SCUBA divers as a means of returning to a safe starting point in conditions of low visibility, water currents or where pilotage is… …   Wikipedia

  • Penetration (weapons) — Strictly speaking, penetration refers to a projectile entering a target without passing through it and perforation refers to a projectile completely passing through the target, but penetration is commonly used to refer to both. Penetration into a …   Wikipedia

  • Standard penetration test — The standard penetration test (SPT) is an in situ dynamic penetration test designed to provide information on the geotechnical engineering properties of soil. The test procedure is described in the British Standard BS 1377 9:1990 and ASTM D1586.… …   Wikipedia

  • Cone penetration test — A CPT truck operated by the USGS. The cone penetration test (CPT) is an in situ testing method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. It was initially developed in the 1950s at the… …   Wikipedia

  • Optimum HDTV viewing distance — is the distance that provides the viewer with the optimum immersive visual HDTV experience. Although opinions vary on the exact screen size to distance relationship, formal research and recommendations suggest closer is preferred to further[not… …   Wikipedia

  • London penetration depth — In superconductivity, London penetration depth (usually denoted as lambda, or lambda L,) characterizes the typical distance to which a weak magnetic field penetrates into a superconductor.Typical values of lambda L, are between 50 and 500 nm.… …   Wikipedia

  • radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium

  • Hydrostatic shock — The term hydrostatic shock describes the theory that a penetrating projectile produces remote wounding and incapacitating effects in living targets, in addition to local effects in tissue caused by direct impact, through a hydraulic effect in… …   Wikipedia

  • Type-II superconductor — A Type II superconductor is a superconductor characterised by its gradual transition from the superconducting to the normal state within an increasing magnetic field. Typically they superconduct at higher temperatures and magnetic fields than… …   Wikipedia

  • Atwood number — The Atwood number is a dimensionless number in fluid dynamics used in the study of hydrodynamic instabilities in density stratified flows. It is a dimensionless density ratio defined as: A = frac{ ho 1 ho 2} { ho 1 + ho 2} where: ho 1 = density… …   Wikipedia

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