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longitudinal study of lung function in coal-miners,longitudinal study of lung function in coal-miners. rg love, bg miller. from the institute of occupational medicine, edinburgh. abstract longitudinal loss .ventilatory function in nigerian coal miners.,ventilatory function in nigerian coal miners. free. loading men with current respiratory symptoms were excluded, as were ex-miners. the faceworkers were a .
their relationship is as shown in figure 1. direct unsafe act of coal mine accidents caused by rescue is the act that cause the accident. a distinctive feature of this
coal mining industry is observed in the economic policy of the state. if the main objective the basis for the break-even functioning of coal mine as a whole is a
keywords: pneumoconiosis, coal miners, environmental health (a type of lung function test), since coal mine dust can cause chronic obstructive pulmonary
methods: the early pattern of lung function changes in 317 newly hired chinese underground coal miners was compared to 132 referents. this three year
the social function of post-reclamation mining activities aims to improve the social function of communities around the mine. in indonesia coal mining practices
the three main types of surface coal mining are strip mining, open-pit mining, and mountaintop coal plays a vital role in the steel industry.
mountaintop removal mining (mtr), also known as mountaintop mining (mtm), is a form of surface mining at the summit or summit ridge of a mountain. coal seams are extracted from a mountain by removing the land, efforts by educating and training members of the coal industry on their role in promoting and adopting
from 2005 to 2009, 6373 underground coal miners completed a health survey, including spirometry testing and chest radiography. coal workers' pneumoconiosis
underground u.s. coal miners were studied cross-sectionally for the association of respirable coal mine dust exposure with pulmonary function and symptoms of
it ensures that coal mining operations are conducted in an mining on lands within their jurisdiction, with osmre performing an oversight role.
coal mine closure to governments, enterprises, workers and their communities. table 2: phases for managing coal mine closure: government roles and
the counterpart role at pit bottom is the onsetter. bell. a bell, bell stone or pan was a loose, roughly bell-shaped stone in the mine roof, liable to fall without
this study of 7139 u.s. coal miners used linear regression analysis to relate estimates of cumulative dust exposure to several pulmonary
design of multi-function sensor detection system in coal mine based on arm. to cite this article: yan-xiang ge et al 2017 iop conf. ser.: earth environ. sci.
in a series of working coal miners, accelerated lung function declines were associated with air trapping and evidence of small airways
clean coal tackling emissions coal mining technologies coal-derived fuels, as well as coal-based electricity, play a significant role in responding to the
non-zero intercept in this functional relationship is that methane emissions can occur at underground coal mines even at very low or at zero production rates.
pump was used to pump water from a coal mine ; it was only 1j h.p., but there was then only very little mechanical power used for any purpose below ground.
coal is primarily used as fuel to generate electric power in the united states. in coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned.
a longitudinal study of pulmonary function and radiological change has been conducted on 141 nonsmoking coal miners and 256 smoking coal miners from
owing to coal's strategic role as a primary fuel, coal miners have figured strongly in labour and political movements since that time. after the late 19th century
the multi-objective optimization model of water resources in the mining area has two objective functions. objective 1: to meet the maximum water