نتایج جستجو برای: air distribution system
تعداد نتایج: 2888936 فیلتر نتایج به سال:
Radon-222 is a good natural tracer of groundwater flow into the coastal ocean. Unfortunately, its usefulness is limited by the time consuming nature of collecting individual samples and traditional analysis schemes. We demonstrate here an automated system which can determine, on a “continuous” basis, the radon activity in coastal ocean waters. The system analyses 222Rn from a constant stream of...
This paper describes an early approach to understanding current air traffic control (ATC) systems. The analysis is based on a distributed cognition analysis of the representations present in air traffic control, and their distribution, manipulation, and propagation through the ATC system. The work is being carried out as part of the Esprit Mefisto project, and has as an eventual aim the explora...
Background and purpose: Dose calculations in trachea HDR brachytherapy treatment planning systems are greatly based on TG-43 protocol in which, all materials including air inside trachea are treated the same as water. The aim of this study was to survey the effect of air on dose calculations of Flexiplan treatment planning system in trachea HDR brachytherapy. Materials and methods: To ev...
There is a demand for reduced power consumption in the vapor compression refrigeration cycle. Coefficient of performance of window-air conditioners considerably decreases and power consumption increases under very hot conditions. These problems have encouragecl studies aimed at improving the performance of window-air-conditioners by enhancing the heat transfer rate in the condenser. In this ar...
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