Results 151 to 160 of about 688,532 (200)
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Magnetic Activity in Cool Stars
Space Science Reviews, 1985Aspects of magnetic activity of late-type stars are reviewed: first, results obtained through the comparison of emissions from various temperature regimes in the outer atmospheres of cool stars, then results from stellar soft X-ray spectroscopy. Spectra obtained with different instruments (Imaging Proportional Counter and Solid State Spectrometer ...
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Anomalous Cooling and Overcooling of Active Colloids
Physical Review Letters, 2022The phenomenon that a system at a hot temperature cools faster than at a warm temperature, referred to as the Mpemba effect, has recently been realized for trapped colloids. Here, we investigate the cooling and heating process of a self-propelled active colloid using numerical simulations and theoretical calculations with a model that can be directly ...
Fabian Jan Schwarzendahl, Hartmut Löwen
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High efficiency active cooling system
Sixteenth Annual IEEE Semiconductor Thermal Measurement and Management Symposium (Cat. No.00CH37068), 2002In this paper we present a new method of active cooling of microstructures. The method consists in controlling the active heat sink in relation to the dissipated power in the microstructure and a thermal model of the package. We intend to design an on-chip controller as an ASIC cell.
P. Dziurdzia, A. Kos
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Efficient, Active Radiator-Cooling System
SAE International Journal of Commercial Vehicles, 2013<div class="section abstract"><div class="htmlview paragraph">A new concept for an efficient radiator-cooling system is presented for reducing the size or increasing the cooling capacity of vehicle coolant radiators. Under certain conditions, the system employs active evaporative cooling in addition to conventional finned air cooling.
David France, David Smith, Wenhua Yu
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1997
Space cryogenics tries to solve the problems connected with cooling down components in space missions. Very low temperatures are required in particular to cool radiation detectors used in astrophysics. Up to now the cryogenic problems have been solved by using a reservoir containing a cryogen, say liquid helium, on board satellites.
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Space cryogenics tries to solve the problems connected with cooling down components in space missions. Very low temperatures are required in particular to cool radiation detectors used in astrophysics. Up to now the cryogenic problems have been solved by using a reservoir containing a cryogen, say liquid helium, on board satellites.
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Active cooling heat protection.
Journal of Spacecraft and Rockets, 1969Active cooling systems are of special interest for use in severe thermal and shear stress environments. The active systems of interest include transpiration cooling, distributed film cooling, partial film cooling, and film cooling that utilizes various coolants such as N2, He, H2O, and others for special applications. The performance and feasibility of
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Active Versus Passive Cooling During Neonatal Transport
Pediatrics, 2013BACKGROUND AND OBJECTIVE: Therapeutic hypothermia is now the standard of care for hypoxic-ischemic encephalopathy. Treatment should be started early, and it is often necessary to transfer the infant to a regional NICU for ongoing care.
Rajiv, Chaudhary +4 more
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Air-cooled, active transmit/receive Panel Array
2008 IEEE Radar Conference, 2007An air-cooled, 128 T/R Channel Panel Array that is 7.4 in. times 10.1 in. times 0.21 in. thick and weighs 2.2 lbs. has been designed and fabricated. The Panel Array is the ldquobuilding blockrdquo or Line Replaceable Unit (LRU) for a modular/ scalable Phased Array for Radar or Communications.
Angelo Puzella, Roberto Alm
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Design of Actively-Cooled Microvascular Composites
2022Microvascular networks in composite panels contain channels to circulate fluid allowing the composites to be used for thermal management, electrical applications, and self-healing. Microvascular networks are a useful design for actively-cooled heat transfer applications.
Marykate R. Dugan, Ahmad Raeisi Najafi
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Thermally activated building elements for cooling
International Journal of Environmental Technology and Management, 2005This study presents a new model for the cooling of buildings. It introduces some applications of this model that are designed, constructed and tested. Experimental results show that this model could be applied easily, it could save considerable energy and helps in protecting the environment.
Can A., Buyruk E., Kucuk M.
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