نتایج جستجو برای: heat rejection
تعداد نتایج: 236358 فیلتر نتایج به سال:
Background and Objectives: Serum amylase increases and its excretion fraction decreases in patients with renal failure. Excretion fraction can be used as a diagnostic way in individuals with acute renal transplant rejection. In this study, the association between amylase excretion fraction and acute renal transplant rejection, was investigated in pediatrics. Methods: in this case - control s...
The High-Energy Antimatter Telescope (HEAT) instrument has been own successfully by high-altitude balloon in 1994 and 1995, in a connguration optimized for the detection and identiication of cosmic-ray electrons and positrons at energies from about 1 GeV up to 50 GeV and beyond. It consists of a two-coil superconducting magnet and a precision drift-tube tracking hodoscope, complemented with a t...
A thermal control architecture design study is conducted for a novel robotic planetary and lunar surface exploration concept. The concept is based on the deployment of a large number of small spherical mobile robots over large areas, which employ hopping, bouncing and rolling as means of locomotion. The aim of the research is to prevent freezing and overheating of the robots, without compromisi...
The current paper examines the application of finite-time thermodynamics in order to compare the performance between air-standard cycles, i.e. Atkinson, Diesel and Otto cycles with constant specific heats of working fluid. The effects of input temperature and compression ratio on the net output work and efficiency of the Atkinson cycle, Diesel cycle and Otto cycle are analyzed. It is assumed th...
A critical approach to the determination of optimal heat rejection pressure in transcritical systems
A novel heat exchanger design method using a delayed rejection adaptive metropolis hasting algorithm
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