نتایج جستجو برای: r123
تعداد نتایج: 114 فیلتر نتایج به سال:
Numerical simulation of bubble growth during pool boiling under the influence of low frequency vibration was performed to understand the influence of common vibrations such as those induced by wind, highway transportation, and nearby mechanical devices on the performance of thermal systems that rely on boiling. The simulations were done for saturated R123 boiling at 277.6 K with a 15 K wall sup...
Weiland, Tracey J., Nicholas J. Voudouris, and Stephen Kent. CCK2 receptor nullification attenuates lipopolysaccharide-induced sickness behavior. Am J Physiol Regul Integr Comp Physiol 292: R112–R123, 2007. First published July 20, 2006; doi:10.1152/ajpregu.00156.2006.—Systemic infection produces a highly regulated set of responses such as fever, anorexia, adipsia, inactivity, and cachexia, col...
It is now widely recognized that the three-dimensional (3D) system integration is a key enabling technology to achieve the performance needs of future microprocessor integrated circuits (ICs). To provide modular thermal management in 3D-stacked ICs, the interlayer microfluidic cooling scheme is adopted and analyzed in this study focusing on a single cooling layer performance. The effects of coo...
Mitochondrial dysfunction has been proposed as a mediator of neurodegeneration in diabetes complications. The aim of this study was to determine whether deficits in insulin-dependent neurotrophic support contributed to depolarization of the mitochondrial membrane in sensory neurons of streptozocin (STZ)-induced diabetic rats. Whole cell fluorescent video imaging using rhodamine 123 (R123) was u...
In the present study the potential benefit of reactive oxygen species (ROS)-scavenging enzymes superoxide dismutase (SOD) and catalase (CAT) when cryopreserving boar spermatozoa was evaluated. Pooled ejaculate sperm-rich fractions collected from 3 fertile boars were frozen in a split design, after being extended in a conventional freezing extender (control) or the same extender supplemented wit...
Organic Rankine Cycle power plants use organic, high molecular mass fluids to allow heat recovery from lower temperature sources such as industrial waste heat, geothermal heat, solar etc. The expansion process is usually carried out by axial or radial turbines. However, when the available thermal power is less than 1000 kW, the usage of positive-displacement expander becomes more suitable. In t...
یکی از کاربردهای معادله حالت محاسبه خواص ترمودینامیکی می باشد که در این پایان نامه با استفاده از معادله حالت جدید، آنتالپی(h)، آنتروپی(s) و انرژی آزاد گیبس(g) محاسبه گردید که با نتایج حاصل از معادلات حالت دیگر مقایسه گردید که از نتایج حاصل به این نتیجه رسیدیم که معادله حالت جدید نتایج بهتری نسبت به معادلات حالت دیگر بدست آورده است، که در دمای زیر بحرانی با فاصله گرفتن از دمای بحرانی نتایج بهتری...
In modern condensers of air conditioning systems, heat pumps, evaporators seawater desalination and heaters power plants, the process vapour condensation is carried out mainly inside horizontal tubes channels. Heat transfer processes occurring in have a significant effect on overall energy efficiency mentioned systems. this paper, experimental investigation during freons R22, R406a, R407c plain...
سیستمهای تولید توان از انرژیهای تجدید پذیر باعث کاهش مصرف انرژی اولیه و انتشار آلایندهها میشوند. چرخه رانکین آلی با استفاده از انرژی خورشیدی میتواند راه حلی مناسب برای تولید توان باشد. در این چرخهها، سیالات عامل آلی جایگزین آب میشود. مطالعه فوق با استفاده از شبیه سازی ترمودینامیکی به تحلیل عملکرد چرخه رانکین آلی، انتخاب سیال عامل مناسب برای این چرخهها میپردازد. در این مطالعه، منبع گرم...
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