نتایج جستجو برای: industrial noise
تعداد نتایج: 339217 فیلتر نتایج به سال:
introduction: noise is one of the hazardous factors in work places such as textile industries. the objective of this study is to determine noise pollution in textile industries in kermanshah (2001). materials & methods: this study is an analytical-descriptive one. the study was done in 2 steps. in the first step the characteristics of the work place & buildings were completely determined; the...
Background and aims: Exposure to excessive noise is a serious threat to the health of industrial workers' hearing. This is a study of hearing problems among workers in the sugar cane industry in Khoozestan Province. Methods: In this descriptive-analytical study, the hearing status of 265 employees, including workers in different sectors and administrative employees, was checked in terms o...
background : noise pollution is one of the important issues of pollutant in workplaces and is almost one of the harmful agents for workers. at present, instrumental based inspections for determining the index levels of noise in workshops is performed. this method is requiring a time consuming and ex-pensive in large scale inspection for workplaces. classification of workplaces based on noise po...
Owing to noise in industrial environment, wireless signal is seriously interfered in industrial environment, and wireless communication quality will be affected seriously. Requirements of industrial wireless network and the wireless network standards are analyzed in this paper. The wireless communication quality model of IEEE 802.15.4 and IEEE802.11b is deduced. The simulation system based on t...
Introduction: Based on the results of some studies, concurrent exposure to organic solvents and noise in industrial areas can accelerate the amount of hearing loss. The aim of this study was to assess the effect of concurrent exposure to organic solvents and noise on high frequency hearing loss. Method: This was a cross-sectional analytic study conducted on 1029 tire manufacturing company wo...
Background and Objectives: Over the last three decades environmental pollutions became a more noticeable problem in all around of the world. In many countries, noise pollution as a basic problem has a great importance.Development of the city, increasing of industrial centers, increasing vehicles, other annoying noise resources and also little information about the noise pollution of Tabriz city...
Noise simulators and noise avoidance tools are playing an increasingly critical role in the design of deep submicron circuits. However, noise estimates produced by these simulators are often very pessimistic. For large, high-performance industrial ICs, which can contain hundreds of thousands of nets, the worst case estimates of the noise results in thousands of reported violations, without any ...
Background : Noise-induced hearing loss is among the most common cause of occupational-related hearing loss. Nowadays, noise-induced hearing loss is a disastrous event of industrial world that may influence all races, ethnics and age groups. Methods : This cross sectional study was performed on 100 workers exposed to noisy environment (greater 85db) in Azmayesh factory. Having excluded all con...
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