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Cryocrystallography: effect of cooling medium on sample cooling rate
Journal of Applied Crystallography, 1998The rates of cooling of small samples with cold N2gas (100 K), liquid N2(77 K) and liquid propane (100 K) have been measured. The samples were one bare Cu-constantan thermocouple and one coated with a 0.25 mm layer of silicone rubber cement. Gas cooling yielded the lowest rate, liquid N2the highest.
Linda J. Walker +2 more
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Cost-effective passive cooling
Physics Today, 2017Inexpensive ingredients and scalable processes produce a material that can emit more energy than it absorbs, even under direct sunlight.
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Measuring the Physiological Effects of Cooling
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1971Men wear cooling garments to reduce external heat load and to remove metabolic heat. The effects of cooling can be seen in physiological measurements made with and without cooling, and the question is: what are the meaningful measurements to make? The following measurements are described and illustrated with experimental data: tolerance times to a ...
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2010
Direct sun can generate the same heat as a single bar radiator over each square meter of a surface. Shading can cool up to 90% of this heat. The big problem is that sunlight is a direct source of heat and the radiant heat from the sun passes through glass and is absorbed by building elements and furnishings, which then re-radiate it.
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Direct sun can generate the same heat as a single bar radiator over each square meter of a surface. Shading can cool up to 90% of this heat. The big problem is that sunlight is a direct source of heat and the radiant heat from the sun passes through glass and is absorbed by building elements and furnishings, which then re-radiate it.
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Effects of Curvature on the Film Cooling Effectiveness of Double-Jet Film Cooling
Volume 5B: Heat Transfer, 2014The effect of curvature on the film cooling characteristics of Double-Jet Film Cooling (DJFC) was numerically investigated using three-dimensional Reynolds-Averaged Navier-Stokes (RANS). The low-Reynolds number shear stress transport (SST) model was employed as the turbulence closure model.
Gaoliang Liao +3 more
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Therapeutic Effects of Postburn Cooling
Journal of Biomechanical Engineering, 1978The use of cooling as first aid in burn injury has been widely justified and employed although, at present, there exists no defined scientific verification of its physiological benefit or a rational therapeutic protocol to follow. The objective of this study was to identify and to quantify the primary parameters which control cooling therapy ...
D. C. Ross, K. R. Diller
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Effect of Array Jet on Cooling Effectiveness on Full-Coverage Film Cooled Surface
Volume 2: Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Computational Heat Transfer, 2009In this study, the cooling effectiveness (Φ) was measured on full-coverage film cooled surface with and without array jet impingement cooing using an infra-red thermographic technique. Measurements were conducted with two test plates of different thermal conductivities.
Dong Hyun Lee +4 more
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Confirmation of shutdown cooling effects
AIP Conference Proceedings, 2015After the Fukushima accidents, all nuclear power plants in Japan have gradually stopped their operations and have long periods of shutdown. During those periods, reactivity of fuels continues to change significantly especially for high-burnup UO2 fuels and MOX fuels due to radioactive decays. It is necessary to consider these isotopic changes precisely,
Kotaro Sato +3 more
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