منتجات

function of coal mine

Microbial Community Structure, Metabolic Function, and

The objectives of this study were to (1) characterize the microbial communities and distribution of underground coal mines, (2) determine the effects of Establishment of coal quality information management system: realizing the storage and centralized management of coal quality data, such as raw coal and Development of coal geological information technologies in China

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Evaluation of eco-environmental quality for the coal-mining

1 Altmetric Metrics Abstract The contradiction between the exploitation of coal resources and the protection of the ecological environment in western China is At present, the main participants in the safety regulation work of coal enterprises in China are coal mine owner, safety regulation department and rank-and-file Evolutionary game analysis of coal-mine enterprise internal

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Effect of Shift Work on Cognitive Function in

Aim: Pilot study to examine the impact of shift work on cognitive function in Chinese coal mine workers. Background: Shift work is commonly used in modern industries such as the coal industry, and there Coal is a combustible solid that is formed through complex chemical and physical reactions. As the core technical support for safe and efficient production of the coal mine, the Coal Wall and Roof Segmentation in the Coal Mine Working

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Research on the data validity of a coal mine solid backfill

Solid backfilling in coal mining refers to filling the goaf with solid materials to form a support structure, ensuring safety in the ground and upper mining areas. This In summary, the study of the microbiome in coal mine dust is meaningful for understanding the occupational health risks of coal miners. In this study, PacBio high-throughput sequencing were used to deeply Pathogenic Bacterial Communities of Dust in a

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Security Assessment of Coal Mine Power Grid Voltage Based

The results show that the improved AHP-FCE method can accurately evaluate the current grid voltage level, analyze the voltage development trend, give early warnings regarding coal mine grid voltage operation, and improve the monitoring function of the power monitoring system. 1. Introduction. The power supply quality and reliability of coal, one of the most important primary fossil fuels, a solid carbon -rich material that is usually brown or black and most often occurs in stratified sedimentary deposits. Location of the most-important Coal Uses, Types, Pollution, & Facts Britannica

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Pathogenic Bacterial Communities of Dust in a

The predictive function of coal mine dust mainly participated in seven KEGG pathways at the level 1, including brite hierarchies, cellular processes, environmental information processing, Mining condition of Mumba coal mine. The mine is located in the northwest of Dhaka 26, the capital of Bangladesh, with a geographical location of 25°31′–25°34′ N and 88°57′–88°59A time function-based prediction model of mining

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Research on production capacity planning method of open-pit coal mine

The Chenbaerhuqi coal field in Hulunbuir City, Inner Mongolia Autonomous Region of China, is where the Baorixile open-pit coal mine is situated (as shown in Fig. 2) 7,28.The mine's externalDespite the trend of a transition to “clean” energy, the coal industry still plays a significant role in the global economy. The constant need for raw materials and energy for production leads to an environmental crisis—an increase in the content of greenhouse gases in the atmosphere, especially in the mining regions. The purpose of An Overview of Carbon Footprint of Coal Mining to Curtail

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Unravelling the microbial community structure and function of coal

Section snippets Sample collection. Formation water (FW) samples (total volume 200 L) were collected at one-hour intervals consecutively for two days from a CBM well having depth of 700 m at Moonidih Coal Mines, Bharat Coking Coal Limited (BCCL) located at the West Jharia Coal Basin, Jharkhand (Longitude of 23°39′ − 23°50′; Latitude An eddy-covariance tower is set up near the output flue of a well-characterized high rank coal mine in Changzhi, and used to produce an average observed CH4 flux over two two-month long periods(PDF) Individual Coal Mine Methane Emissions Constrained

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The impact of coal mine dust characteristics on pathways to

However, between 1936 and 1942 the Medical Research Council (MRC) in Britain conducted an epidemiological survey to understand the nature of the resurgence in coal mine dust disease among workers (Fig. 1 timepoints 4–6). During this period, the disease was termed pneumoconiosis of coal workers, a clinically distinctive disease to The overall eco-environmental quality of No. 4 Coal Mine is not as good as No.5 Coal Mine (Fig. 6); the worse area is up to 68.5% of the total No. 4 Coal Mine area, and good to better areas onlyEvaluation of eco-environmental quality for the coal-mining

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Development of coal geological information technologies in China

The history of coalfield geology and mine geology IT applications is over 30 years, which is gaining remarkable achievements. This paper sheds light on the development of geological and surveying spatial management information systems. Specifically, this study proposed the development trend, system structure and function Coal is a combustible solid that is formed through complex chemical and physical reactions. As the core technical support for safe and efficient production of the coal mine, the intelligent coal mine is an important direction for the development of fossil fuel-related fields. Due to the complexity and limitations of the underground environment and the influence of coal dust Coal Wall and Roof Segmentation in the Coal Mine Working

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Sources and succession of microorganisms in industrial coal

The raw coal, mine water, and flotation feeding (RC, MW, FF) were obtained from coal seams in Qinxin Coal Preparation Plant at Changzhi (36°57′N, 112°19′E), To deeply investigate the relationship between microorganisms and metabolism functions of raw coal and flotation feeding, correlation network diagrams (Fig. 9 (b) (c))In recent years, the coal industry has been expanding the scale and output of coal mining in China, yet the safety in production is faced with great challenge. Communication system in coal mines plays a significant role in production safety, and wireless narrowband data communication network technology is a new-type A Network Communication Frequency Routing Protocol of Coal Mine

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Signal Game Analysis on the Effectiveness of Coal Mine

The main cause of coal mine safety accidents is the unsafe behavior of miners who are affected by their emotional state. Therefore, the implementation of effective emotional supervision is important for achieving the sustainable development of coal mining enterprises in China. Assuming rational players, a signaling game between miners In the late 1990s, despite years of efforts to understand and reduce coal worker’s pneumoconiosis (CWP) prevalence from more than 30% in 1970 to less than 4.2%, the level of occurrence among the US coal miners increased unexpectedly. The recent resurgence of lung diseases has raised concerns in the scientific and regulatory Respirable Coal Mine Dust: A Review of Respiratory

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Design and Implementation of Coal Mine Safety

At the software application level of coal mine safety produc-tion monitoring system, the functions of the application system mainly include power environment monitoring, video monitoring, etc. at the same time, it is effectively con-nected with coal mine production scheduling system through data interface to escort coal mine safety In this study, the noise level range of the simulated coal mine environment was set as 45, 65, 85, and 95 dB, and the measurement system of miners' behavior ability and physiological indicators in the noise scene was constructed. The continuous work time of miners was considered quantitatively. Three factors, noise level, education level, andExperimental study of the influence of coal mine noise on

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Quantifying methane emissions from coal mining

The extraction of coal deposits is accompanied by CO 2 as well as CH 4 (Swolkien, 2020), which could explain the large correlation. The calculated slope ranges from 3.54 ± 0.25 [ppm CH4 /ppm CO2] to 5.27 ± 0.07 [ppm CH4 /ppm CO2]. In addition, a flask sample was taken directly from the coal mine ventilation shaft during the span of Wireless sensor networks (WSNs) are a specific type of networks that link sensors and have the potential to greatly benefit monitoring of coal mine applications, underground mine safety and localization of miners. Such systems can monitor the underground environment in real-time, provide information about the localization of Using wireless underground sensor networks for mine and

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