Results 31 to 40 of about 41,682 (296)
The critical frequency in the Stellar pulsation theory [PDF]
Space Science Reviews, 1980 AbstractThe standing oscillation in an isothermal semi-infinite plane-parallel atmosphere has a critical frequency. The significance of critical frequency in the stellar pulsation is discussed briefly. The critical period is calculated for the cepheid instability strip.
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Communications Medicine, 2022 Abstract Background Narcolepsy is a chronic neurological disease characterized by daytime sleep attacks, cataplexy, and fragmented sleep. The disease is hypothesized to arise from destruction or dysfunction of hypothalamic hypocretin-producing cells that innervate wake-promoting systems including the ascending arousal ...
Matti Järvelä +5 more
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Asynchronous performance analysis of a single-phase capacitor-start, capacitor-run permanent magnet motor [PDF]
, 2005 This work presents a detailed analysis of the asynchronous torque components (average cage, magnet braking torque and pulsating) for a single-phase capacitor-start, capacitor-run permanent magnet motor.
McGilp, M. +5 more
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Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроениеAn analysis of methods for converting acoustic energy generated in a thermoacoustic engine into electrical energy was carried out. A method of calculating an axial pulsation turbine for converting acoustic energy into electrical energy was presented.
A. I. Dovgyallo +3 more
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Application of pulsating jet concept for efficiency improvement of solar-based air heaters
Cleaner Engineering and TechnologyThis study employs transient numerical analysis to investigate the hydraulic and thermal performance of a jet solar air heater (JSAH) operating under turbulent pulsating flow conditions, juxtaposed with a conventional solar air heater (SAH). The absorber
Sameer Ali Alsibiani
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Pulse and pulsating supercharging phenomena in a semi-enclosed pipe
Scientific Reports, 2023 Considering the discontinuous square pulse wave and continuous sine pulsating wave, we report a distinctive supercharging phenomenon of fluid in a water-filled semi-enclosed pipe and reveal the supercharging regularity.
Fei Wang, Heng Li
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Hot DAVs : a probable new class of pulsating white dwarf stars [PDF]
, 2013 We have discovered a pulsating DA white dwarf at the lower end of the temperature range 45 000–30 000 K where a few helium atmosphere white dwarfs are known. There are now three such pulsators known, suggesting that a new class of theoretically predicted
B. T. Gänsicke +42 more
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The Distribution and Vibration Mechanism of Pulsating Pressure in the Spillway of Arch Dam
Taiyuan Ligong Daxue xuebao[Purposes] The study on flood discharge safety of high arch dam involves the design of spillways, the strength of structure, the distribution of flow pressure, and the characteristics of flow pattern during flood discharge. [Methods] The study focuses on
GONG Chengyong +5 more
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Frequency of spontaneous pulsations of the central retinal vein [PDF]
British Journal of Ophthalmology, 2007 The central retinal vein is the only structure in the body which can be examined non-invasively, runs through the cerebrospinal fluid space, and has a shape that depends on the relationship between its internal pressure and the pressure in the space surrounding it.
Bjoern, Harder, Jost B, Jonas
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A new eclipsing binary system with a pulsating component detected by CoRoT
, 2010 We report the discovery of CoRoT 102980178 (R.A.= 06:50:12.10, Dec.= -02:41:21.8, J2000) an Algol-type eclipsing binary system with a pulsating component (oEA).
Balaguer-Nunez, L. +5 more
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