Results 311 to 320 of about 1,073,601 (348)

Cryocrystallography: effect of cooling medium on sample cooling rate [PDF]

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.
Phillip O. Moreno, Linda J. Walker, Hakon Hope   +2 more
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Rate of runaway evaporative cooling

Physical Review A, 2011
Evaporative cooling is a process that is essential in creating Bose-Einstein condensates in dilute atomic gasses. This process has often been simulated based on a model using a truncated Boltzmann distribution. This model assumes that the energy distribution up to the threshold energy can still be described by a Boltzmann distribution: it assumes ...
J. M. Vogels, J. van de Groep, P. van der Straten   +2 more
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On the rates of emplacement, crystallization and cooling [PDF]

, 1993
We know very little with certainty about the times required to melt, segregate, crystallize and cool granitic magmas. Calculation is bedevilled by imponderables such as the effect of crustal depth, tectonic environment and mode of emplacement, and the extent to which fresh draughts of magma thermally recharge the system. It is extremely unlikely that a
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Cooling rates of seven hexahedrites

Geochimica et Cosmochimica Acta, 1978
Abstract Cooling rates for seven hexahedrites, (Uwet, Coahuila, Walker County, Lombard, Quillagua, Hex River Mountains and Tocopilla) have been determined using a ternary diffusion controlled phase growth analysis developed by the authors. The model is applied to the exsolution and growth of plate phosphides in the kamacite phase of hexahedrites ...
Joseph I. Goldstein, E. Randich
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Statically controlled cooling rate device

Cryobiology, 1979
Abstract A new statically controlled cooling rate device consists of metal plates and insulators which can be modified so as to control heat flow and achieve a considerable range of specific cooling rates. It can thus be adapted to give the desired cooling rates for the cryopreservation of various biological materials.
James H. Pert, George Dayian
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Sizes of crystallites as a function of cooling rate

Scripta Metallurgica et Materialia, 1994
The effect function model of phase transitions has been applied to the process of crystallization of the segregating solid solutions Pb[sub 1[minus]x]Sn[sub x]Te and Ge[sub 1[minus]x]Si[sub x] in order to determine the values of the maximum sizes of crystallites and the effective diffusion coefficients for the liquid phase.
Bakin, A.S.*, Romanenko, V.N.**, Schilz, J., Nikitina, G.V.*, Ivanov, D.I.**   +4 more
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Cooling-rates in splat-cooling [PDF]

Journal of Materials Science, 1972
Nicholas J. Grant, J. Vitek
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The Flow Rate in a Self-Cooled Transformer

IEEE Transactions on Power Apparatus and Systems, 1981
This paper presents a method for calculating the flow rate of circulating oil in self-cooled transformers.
Kumasaka, Inui, Yamaguchi, Ono
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Is freezer cooling rate equal to sample cooling rate?

Cryobiology, 2018
Birgit Glasmacher, T. Rittinghaus
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Cryopreservation: Vitrification and Controlled Rate Cooling

2017
Cryopreservation is the application of low temperatures to preserve the structural and functional integrity of cells and tissues. Conventional cooling protocols allow ice to form and solute concentrations to rise during the cryopreservation process. The damage caused by the rise in solute concentration can be mitigated by the use of compounds known as ...
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