نتایج جستجو برای: mw
تعداد نتایج: 17728 فیلتر نتایج به سال:
Purpose Mobile cell phones are used extensively these days, and their microwave (MW) radiation has been shown to affect the eye. The purpose of the present study was to evaluate the effects of MW radiation on rabbit retina. Methods This experimental study (concluded in 2015) was conducted on 40 adult white New Zealand rabbits. A Global System for Mobile Communications (GSM) cell phone simulat...
A close association between microwave (MW) radiation exposure and neurobehavioral disorders has been postulated but the direct effects of MW radiation on central nervous system still remains contradictory. This study was performed to understand the effect of short (15 days) and long-term (30 and 60 days) low-level MW radiation exposure on hippocampus with special reference to spatial learning a...
OBJECTIVES To investigate the development of post-extraction bacteraemia (PEB) after the prophylactic use of chlorhexidine (CHX). PATIENTS AND METHODS A total of 201 patients who underwent a tooth extraction were randomly distributed into four groups: 52 received no prophylaxis (CONTROL), 50 did a mouthwash with 0.2% CHX before the tooth extraction (CHX-MW), 51 did a mouthwash with 0.2% CHX a...
نیاز به منابع انرژی های تجدید پذیر و تصفیه حجم بسیار زیاد پساب های تولید شده در بخش خانگی وصنعتی از مهمترین مسائل کشور های در حال توسعه و حتی توسعه یافته می باشد. یکی از روش های نوین و سازگار با سیاست های محیط زیستی استفاده از پیل های سوختی میکروبی است که در سال های اخیر کانون توجه بسیاری از محققین بوده است. پیل سوختی میکروبی یک فن آوری نوین جهت تولید الکتریسیته و تصفیه پساب به طور همزمان، از ط...
The integration of renewable wind and pumped storage with thermal power generation allows for dispatch of wind energy by generation companies (GENCOs) interested in participation in energy and ancillary services markets. However, to realize the maximum economic profit, optimal coordination and accounting for reduction in cost for environmental emission is necessary. The goal of this study is to...
In the problems of choosing “aspirations” for coalitional games, we study two axioms, “MW-consistency” and “converse MW-consistency”, introduced by Moldovanu and Winter (1994). We mainly consider two domains: the domain of all NTU games and the domain of all TU games. In particular, we study which subsolutions of the aspiration correspondence satisfy MW-consistency and/or converse MWconsistency...
In [3] Felder and Veselov considered the standard and twisted actions of a finite Coxeter group W on the cohomology H(MW ) of the complement of the complexified hyperplane arrangement MW of W . The twisted action is obtained by combining the standard action with complex conjugation; we refer the reader to [3] for precise statements. In a case by case argument, Felder and Veselov obtain a formul...
For a subgroup W of the hyperoctahedral group On which is generated by reflections, we consider the linear dependence matroid MW on the column vectors corresponding to the reflections in W . We determine all possible automorphism groups of MW and determine when W ∼= Aut(MW ). This allows us to connect combinatorial and geometric symmetry. Applications to zonotopes are also considered. Signed gr...
The work presented describes the characteristics of single stage and severed high-efficiency, high-power traveling-wave tube amplifiers operating in X band at 8.76 GHz. Average amplified output powers of 210 MW have been achieved at 24% efficiency. At high output power levels ( > 100 MW) sidebands develop increasing the average radiated power to over 400 MW with a microwave conversion efficienc...
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