Results 261 to 270 of about 300,025 (308)
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The optimum temperature for annealing glass
Glass and Ceramics, 1968Fig. 2. Time to es tablish the equilibrium viscosi ty at var ious tempera tures . Fig. 1. The p rocess of s t ructura l reorganizat ion, c h a r a c t e r ized by the absence of elongation of the specimen with an inc r ease in tempera ture , occurs in this case, at above 400 ~ .
M. V. Okhotin, T. D. Andryukhina
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Influence of the Perfusate Temperature on Lung Preservation: Is There an Optimum?
European Surgical Research, 2008The optimal temperature of the pulmonary flush perfusate is still a matter of controversy. At present, a temperature of 10 °C is favored. This study deals with the structural and functional impact of different perfusate temperatures on lung preservation. In an extracorporeal rat heart-lung model lungs were preserved with Perfadex® solution of 4, 15 and
J M, Albes +5 more
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Effect of humidity on swine at temperatures above optimum
International Journal of Biometeorology, 1969Twenty-seven groups of pigs of three each were raised in controlled-environment houses for 12 to 14 weeks. Three levels of humidity (% RH) were compared at temperatures of 22°, 28° and 33°C. Rate of gain and feed consumption decreased with increasing humidity at any of these temperatures, with effect of humidity increasing with increasing temperature ...
S R, Morrison, H, Heitman, T E, Bond
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Optimum temperature sequences in reactors
Chemical Engineering Science, 1958Resume On passe en revue les travaux anterieurs de plusieurs auteurs sur les profiles de temperature les plus favorables pour des reactions exothermiques reversibles et des reactions de degradation. Quelques nouveaux calculs servent a illustrer les grandes augmentations de rendement qui peuvent etre realisees si l'on emploie la succession la plus ...
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Optimum bubble temperature for the sonochemical production of oxidants
Ultrasonics, 2004Numerical simulations of bubble oscillations in liquid water irradiated by an ultrasonic wave are performed for various acoustic amplitudes and various ambient pressures. In the numerical simulations, effect of non-equilibrium evaporation and condensation of water vapor at the bubble wall and that of chemical reactions of gases and vapor inside a ...
Kyuichi, Yasui +2 more
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Calculating the optimum temperature for serving hot beverages
Burns, 2008Hot beverages such as tea, hot chocolate, and coffee are frequently served at temperatures between 160 degrees F (71.1 degrees C) and 185 degrees F (85 degrees C). Brief exposures to liquids in this temperature range can cause significant scald burns. However, hot beverages must be served at a temperature that is high enough to provide a satisfactory ...
Fredericka, Brown, Kenneth R, Diller
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On Denbigh's optimum temperature sequence
Chemical Engineering Science, 1960Abstract The example of an optimum temperature sequence in stirred tank reactors given by D enbigh is here discussed from the dynamic programming point of view. The notion of dynamic programming was developed to deal with just such optimum problems, in which a decision, in this case a choice of temperature, has to be made at each of N stages that ...
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Optimum Design of Structures at Elevated Temperatures
AIAA Journal, 1979This paper describes optimum design techniques for structures where high temperatures are important design considerations. An improved variant of fully stressed design (FSD), denoted thermal fully stressed design (TFSD), is described which converges significantly faster than FSD for problems where thermal stresses are comparable in magnitude to ...
Howard M. Adelman +2 more
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Optimum Wavelength Intervals for Surface Temperature Radiometry
Applied Optics, 1966Total reflectance measurements of some common surface minerals in the wavelength interval 0.5 micro to 23 micro show pronounced reflection maxima in some regions used for radiometric measurements of planetary surface temperatures. Variations in emissivity in the regions of such maxima could introduce significant errors into such temperature ...
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Optimum temperature for the sensing characteristics of MSMA
2017 36th Chinese Control Conference (CCC), 2017Magnetically controlled shape memory alloy (MSMA) which has fast response, high energy density and other excellent characteristics, have a broad application prospects as a potential intelligent sensor materials. However, the unclear correlation between the environment temperature and the sensing characteristics limits the application of MSMA in the ...
Hui Ouyang +6 more
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