نتایج جستجو برای: separation area
تعداد نتایج: 700709 فیلتر نتایج به سال:
Background: Municipal solid waste is a serious environmental issue in human societies. The source separation is a necessity for efficient municipal waste management (MSW). Objective: The aim of this study was to evaluate the source separation rate of MSW in several Iranian cities, as well as to identify the determinance of the participation level in source separation. Methods: In this study, ...
A polypropylene hollow fiber membrane module is used for separating dissolved gases which contain dissolved oxygen from water. These dissolved gases can be used for underwater breathing. To be used for a human, the minimum amount of oxygen is essential. To increase separation of dissolved gases, much water and high surface area of hollow fibers are requested. For efficient separation system, pe...
applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...
The presence of an area of reversed blood flow due to flow separation in the interval carotid artery is a normal finding in Doppler ultrasound studies in vivo as well as in model carotid bifurcations. This flow separation phenomenon is caused by the geometry of the carotid bifurcation and the fluid dynamics of blood. We demonstrated the flow separation phenomenon on lateral-projection intra-art...
Recycling and reuse of municipal solid waste is one of the most important components of waste management. In this regards, education plays an important role in people motivation and changing their behavior. The aim of this study was to identify effect of education on people participation in source separation of municipal solid waste in district 5 of Tehran municipality. In this experimental st...
Wireless Local Area Networks (WLAN) has attracted significant interest to support real-time communication. The most promising solution was recently published as IEEE 802.11e, which provide traffic differentiation. However, that solution still has an inadequate behavior to support real-time applications. In this paper, we propose a new traffic separation mechanism for IEEE 802.11e networks. Such...
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