نتایج جستجو برای: coal miners
تعداد نتایج: 34103 فیلتر نتایج به سال:
Miners fitness test was assessed in terms of determination of maximum aerobic capacity by an indirect method following a standard step test protocol before going down to mine by taking into consideration of heart rates (Telemetric recording) and oxygen consumption of the subjects (Oxylog-II) during exercise at different working rates. Maximal heart rate was derived as 220-age. Coal miners repor...
Effective gas management in coal mines, as well as proper ventilation design, is very important for maintaining the safety of underground coal miners. Advances in numerical modeling techniques have enabled evaluations of the coal mining environment using advanced grid designs and computed gas distributions through detailed mathematical models. These models help engineers to “see” the “unseen” a...
Introduction What can the canary in the coal mine tell us? Historically, canaries accompanied coal miners deep underground. Their small lung capacity and unidirectional lung ventilation system made them more vulnerable to small concentrations of carbon monoxide and methane gas than their human companions. As late as 1986, the acute sensitivity of these birds served as a biological indicator of ...
Surveillance videos of coal mining faces have close relation to the safety of coal miners and mining efficiency. However, surveillance videos are always disturbed by some severe conditions such as atomization, low illumination, glare, and so on. Therefore, this paper proposed a hybrid algorithm (SSR-BF) based on the integration of single-scale Retinex (SSR) and bilateral filtering (BF) to enhan...
Coal mining is a hazardous profession in India that exposes workers to range of health risks, including respiratory diseases, skin disorders, hearing loss, and injuries. The coal miner's day, observed on May 4th every year, commemorates the hard work sacrifices miners. mines act, 1952, its associated regulations mandate provision medical facilities, safety measures, rescue stations trained pers...
Occupational exposure to high levels of respirable quartz can result in respiratory and other diseases in humans. The Mine Safety and Health Adminstration (MSHA) regulates exposure to respirable quartz in coal mines indirectly through reductions in the respirable coal mine dust exposure limit based on the content of quartz in the airborne respirable dust. This reduction is implemented when the ...
AIM To determine whether kneeling or squatting for prolonged periods is sufficiently causally associated with an increased risk of injury or degenerative disease of the knee joint as to meet the classic criteria to be considered an occupational disease of coal miners for whom these are or have been routine working postures. METHOD Systematic literature searches were made for studies relating ...
BACKGROUND Occupational injuries cause major health problems in all nations. Coal mining is one of the largest, oldest industries in the world. However, there is relatively little available literature concerning the health status of coal miners. The purpose of this work is to assess the prevalence of periodontal disease among coal miners and provide a basis for planning and evaluating the data ...
Coal extraction releases pollutants to the air that affect health and well-being of not only coal communities but also societies at large. However, provides people with stable livelihoods. Given this, how do workers perceive pollution is produced by their own industry? To answer this question, I interviewed miners in China. My findings present a paradox: Although identify certain sources pollut...
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