Results 201 to 210 of about 1,164,350 (247)

Theoretical (Ideal) Module Cooling and Module Cooling Effectiveness

Volume 3: Advanced Fabrication and Manufacturing; Emerging Technology Frontiers; Energy, Health and Water- Applications of Nano-, Micro- and Mini-Scale Devices; MEMS and NEMS; Technology Update Talks; Thermal Management Using Micro Channels, Jets, Sprays, 2015
When contemplating processor module cooling, the notion of maximum cooling capability is not simple or straight forward to estimate. There are a multitude of variables and constraints to consider; some more rigid or fixed than others. This paper proposes a theoretical maximum cooling capability predicated on the treatment of the module heat sink or ...
Michael J. Ellsworth, Levi A. Campbell
openaire   +1 more source

New cooling effect

Physics Letters A, 1973
Abstract Adiabatic rotation of 4 He in packed powder is shown to provide a new cooling effect. Using a simplified model and some experimental parameters it is estimated that (Δ T / T ) 1°K ≈-0.25°K.
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Surface roughness effects on film-cooling effectiveness in a fan-shaped cooling hole

Aerospace Science and Technology, 2021
Abstract Large eddy simulations (LES) were carried out to investigate the influence of surface roughness, which was applied to the inner walls of a cooling hole, on cooling performance and flow structures. The cooling hole was a 30-degree inclined, baseline 7-7-7 fan-shaped hole relative to a turbulent flat plate boundary layer of the mainstream ...
Ali Zamiri, Sung Jin You, Jin Taek Chung
openaire   +1 more source

The effects of cooling mouse oocytes

Journal of Assisted Reproduction and Genetics, 1992
The effects of cooling and warming on meiotic spindles of mouse oocytes have been assessed by transmission electron microscopy. Intact cumulus-oocyte complexes were immediately cooled from 37 to 15, 4, 0, and -7 degrees C (seeding temperature) for 15 min in a programmed biological freezer and fixed at these temperatures.
Sathananthan, A. Henry, Kirby, Carol, Trounson, Alan, Philipatos, Dennis, Shaw, Jill   +4 more
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The effects of cooling human oocytes*

Human Reproduction, 1988
Preovulatory human oocytes were cooled to 0 degrees C at 1 degree C/min, with or without the cryoprotectant dimethyl sulphoxide (DMSO), to assess the effects of cooling on the meiotic spindles and on oocyte structure. Batches of oocytes, cultured for 3-9 h, were held at 0 degrees C for 20 or 60 min and then fixed for transmission electron microscopy ...
A H, Sathananthan, A, Trounson, L, Freemann, T, Brady   +3 more
openaire   +2 more sources

Effects of chemical reaction caused by cooling stream on film cooling effectiveness

Journal of Thermal Science, 2012
With the increase of inlet temperature of gas turbines, the benefits by using the conventional methods are likely to approach their limits. Therefore, it is essential to study novel film cooling methods for surpassing these current limits. Based on the theory of heat transfer enhancement, a film cooling method with chemical reaction by cooling stream ...
Keyong Cheng, Shiqiang Liang, Xiulan Huai, Wei Chen, Yongxian Guo   +4 more
openaire   +1 more source

Effects of Showerhead Cooling on Turbine Vane Suction Side Film Cooling Effectiveness

Heat Transfer: Volume 3, 2000
Abstract The process of film cooling is known to severely disturb the boundary layer around a turbine airfoil. Since most film-cooled airfoils have more than one injection station, the flow field approaching a row of film cooling holes could be altered by the presence of an upstream cooling station.
Marcia I. Ethridge, J. Michael Cutbirth, David G. Bogard   +2 more
openaire   +1 more source

Cryocrystallography: effect of cooling medium on sample cooling rate

Journal of Applied Crystallography, 1998
The 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, Phillip O. Moreno, Håkon Hope   +2 more
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Cost-effective passive cooling

Physics Today, 2017
Inexpensive 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, 1971
Men 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 ...
openaire   +2 more sources