— Open pit coal mining is widespread in Ethiopia where there are more than 430 million tons of coal deposits found in the country of which Yayu coal mining being the largest site [28] About 200
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— The research aimed to identify predictors of dangerous risk taking in the Australian coal mining industry the models by Fogarty and Shaw 2010 and Clarke 2010 do not consider workers age or any other demographic variables Instead their primary predictor variables are management attitude and psychological climate
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— The annual incidence rate 20 year prevalence rate and incidence rate of coal miners pneumoconiosis per million tons in China from 1949 to 2021 were calculated by using the data of annual number of coal miners pneumoconiosis diagnosed and reported from the coal mining and dressing industry the number of coal miners and the raw coal
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— Mining of coal around the world is being continued to meet the ever growing energy demand Mining involves extensive clearing of ground cover change in physiography generation of massive solid and liquid wastes to reach coal and thereby alters ecology and environment of the mining site as well as the neighboring areas Depending
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Exposure to dust from the mining environment has historically resulted in epidemic levels of mortality and morbidity from pneumoconiotic diseases such as silicosis coal workers pneumoconiosis CWP and asbestosis Studies have shown that CWP remains a critical issue at collieries across the globe with some countries facing resurgent patterns of the
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— The operation optimization problem of this system is characterized by multi scenario multi variable multi objective and strong constraints making it difficult to be solved such as mine wastewater can significantly reduce their operation costs Integrated coal mine energy systems ICMESs typical examples of integrated regional energy
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— installed in the coal mine Figure 2 shows that the burst sources are mainly distributed in the area around the open off cut; this area had been damaged repeatedly when rock bursts occurred Longwall mining in this mine had revealed that the thin ning of the coal seam had an adverse effect on mining activ ities by inducing dynamic phenomena
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— In the study of Javadi et al 2016 on the Tabas coal mine falling on the roof of the extraction workshop and falling in the corridors of the extraction zones were identified as the major hazards
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— In summary compaction and seepage properties of BCR are crucial for safe mining and resource recovery and utilization in coal mines However due to the often closed state of BCR in coal mines the physical and mechanical properties and seepage characteristics are difficult to directly detect Zhang et al 2020c 2021e; Wang et al
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— Coal mining activities of China and their TWS trends Since 2010 the Chinese government has implemented coal phase out policies initially targeting low efficient coal production capacity and
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— In underground coal mining the working environment is completely enclosed by the geologic medium which consists of the coal seam and overlying and underlying strata Depillaring is one of the most dangerous phases of underground coal mining Even after centuries of experience in underground coal mining there is no well
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Underground coal mining in the North China Plain has created large scale subsidence wetlands that may attract waterbirds that use them as complementary habitats However no study has been conducted to understand avian use of these created wetlands inhibiting the formulation of effective management plans
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— Given that the global fleet of coal fired power plants is mostly new coal biomass co firing power plants with retrofitted carbon capture and storage CBECCS are regarded as a promising option
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— Underground coal mining has a strong disturbance on surrounding rock strata causing inevitable water inflow into mined spaces which seriously affects safety production Mine water disaster is regarded as one of the most critical problems in coal mining and thus has been a research hotspot in coal mining This review focuses on
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— Semantic Scholar extracted view of "Shifts in arbuscular mycorrhizal fungal community composition and edaphic variables during reclamation chronosequence of an open cast coal mining dump" by Y Bi et al as well as their relationships with edaphic factors in planted forests which can be used to provide insight on the utilization and
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— Major coal producers are increasing their output Energy security has moved further up the political agenda after the market disruptions sparked by the Covid19 pandemic and Russia s invasion of Ukraine For China and India domestic coal production has long been the cornerstone of energy security policy
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3 — Coal mining extraction of coal deposits from the surface of Earth from underground Coal has been used since the Bronze Age 3 000 to 4 000 years ago and was the basic energy source that fueled the Industrial Revolution of the 18th and 19th centuries Surface stacks above the shaft increased the efficiency of ventilation; their use
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— Major coal producers are increasing their output Energy security has moved further up the political agenda after the market disruptions sparked by the Covid19 pandemic and Russia s invasion of Ukraine For China and India domestic coal production has long been the cornerstone of energy security policy
— Coal mining is a leading industry causing PCA is a multivariate statistical technique that creates new variables commonly known as principal components PCs that are orthogonal and uncorrelated to each other Heavy metal concentrations in PM 10 were also estimated to understand their variations related with different mining
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