pulsations frequency

См. также в других словарях:

• Naine blanche à pulsations — Une naine blanche à pulsations est une étoile naine blanche à la luminosité variable du fait de pulsations d ondes de gravité non radiales dans sa partie interne. Les types connus de naines blanches à pulsations comprennent les étoiles DAV, ou ZZ …   Wikipédia en Français

• geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …   Universalium

• star — starless, adj. /stahr/, n., adj., v., starred, starring. n. 1. any of the heavenly bodies, except the moon, appearing as fixed luminous points in the sky at night. 2. Astron. any of the large, self luminous, heavenly bodies, as the sun, Polaris,… …   Universalium

• wind instrument — /wind/ a musical instrument sounded by the breath or other air current, as the trumpet, trombone, clarinet, or flute. [1575 85] * * * ▪ music Introduction       any musical instrument that uses air as the primary vibrating medium for the… …   Universalium

• Non-invasive intracranial pressure measurement methods — Increased intracranial pressure (ICP) is one of the major causes of secondary brain ischemia that accompanies a variety of pathological conditions, most notably, traumatic brain injury (TBI), stroke, and intracranial hemorrhages. However, aside… …   Wikipedia

• gasoline engine — Most widely used form of internal combustion engine, found in most automobiles and many other vehicles. Gasoline engines vary significantly in size, weight per unit of power generated, and arrangement of components. The principal type is the… …   Universalium

• electric generator — ▪ instrument Introduction also called  dynamo,         any machine that converts mechanical energy to electricity for transmission and distribution over power lines to domestic, commercial, and industrial customers. Generators also produce the… …   Universalium

• Womersley number — A Womersley number is a dimensionless number in biofluid mechanics. It is a dimensionless expression of the of pulsatile flow frequency in relation to viscous effects. It is named after John R. Womersley (1907 1958).The Womersley number, usually… …   Wikipedia

• Vega — Starbox begin name=Vega Starbox image caption = Location of Vega in the constellation Lyra. Starbox observe epoch=J2000.0 constell=Lyra ra=RA|18|36|56.3364cite web author=Staff date=October 30, 2007 url=http://simbad.u strasbg.fr/simbad/sim… …   Wikipedia

• Hydropneumatic device — North American, European, and other languages refer to hydropneumatic devices such as a hydropneumatic accumulator or pulsation damper using very different words. In many cases this can cause a great deal of word usage confusion. This article… …   Wikipedia

• Pulsating white dwarf — V777 Herculis star redirects here. For the star, see GD 358. A pulsating white dwarf is a white dwarf star whose luminosity varies due to non radial gravity wave pulsations within itself. Known types of pulsating white dwarfs include DAV, or ZZ… …   Wikipedia