Showing 261 - 280 results of 13,752 for search '"Coal mining"', query time: 0.65s Refine Results
  1. 261

    Research of coal mine gas disaster risk evaluation method by SHU Lichu

    Published 2015-04-01
    “…The method has great significance to prevent occurrence of coal mine gas accident.…”
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    Article
  2. 262

    Application Research of Image Processing in Gas Monitoring of Coal Mine by WANG Meng, LI Yu-liang, WANG Qing-fei

    Published 2011-07-01
    “…There are problems in gas monitoring using portable gas alarm in working face of coal mine,such as gas concentration reporting is tedious and boring. …”
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    Article
  3. 263

    A new evaluation method for power quality of coal mine by SHI Liping, DU Gang

    Published 2015-06-01
    “…A new evaluation method for power quality of coal mine was proposed. Comprehensive weight of each power quality index is calculated through linear weighting of objective weight determined by rough set theory and subjective weight obtained by analytic hierarchy process. …”
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    Article
  4. 264
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  6. 266

    Research on the application of digital twin in coal mine power grid by ZHAO Jianwen, MENG Xuhui

    Published 2023-02-01
    Subjects: “…coal mine power grid…”
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    Article
  7. 267

    Research of Metering Technology of Pipeline Gas Flow of Coal Mine by LI Tao

    Published 2012-11-01
    “…Development status of metering technology of pipeline gas flow of coal mine was introduced, and advantages and disadvantages of orifice flowmeter, vortex flowmeter, Pitot tube flowmeter, swirlmeter and V-cone flowmeter were analyzed. …”
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    Article
  8. 268
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  10. 270

    Research of Unified Communication Platform of Coal Mine Internet of Things by HUO Zhen-long, BAO Jian-ju

    Published 2011-10-01
    Subjects: “…coal mine internet of things, unified communication platform, wireless sensor network, gateway, protocol system, virtual access, service-oriented…”
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    Article
  11. 271
  12. 272

    Design and implementation of coal mine networking data analysis model by CHEN Qing

    Published 2021-08-01
    Subjects: “…coal mine monitoring system…”
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    Article
  13. 273

    Design of pre-warning system of coal mine water disaster by DUAN Li-hong

    Published 2013-09-01
    “…The paper designed a pre-warning system of coal mine water disaster according to characteristics of complexity and sudden of coal mine water disaster, introduced design objectives and principles of the system, analyzed main influence factors on coal mine water disaster, described design of function modules of the system. …”
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    Article
  14. 274

    Comparison of Methane Control Methods in Polish and Vietnamese Coal Mines by Borowski Marek, Kuczera Zbigniew

    Published 2018-01-01
    “…Methane hazard often occurs in hard coal mines and causes very serious accidents and can be the reason of methane or methane and coal dust explosions. …”
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    Article
  15. 275

    Key technologies for intelligent construction of power supply in coal mines by GAO Qiye, LI Jun

    Published 2021-06-01
    “…At the same time, the “six integration” targeted solution is proposed, which can provide a more comprehensive reference for the intelligent power supply and unattended construction of coal mines. This solution is conducive to realize all-round anti-overstep tripping (including short circuit to prevent leap-level, switch rejection to prevent leap-level, voltage fluctuation to prevent leap-level and fixed value mismatch to prevent leap-level, etc.), accurate grounding fault line selection (accuracy rate 100%), low voltage leakage accurate leakage selection (accuracy rate 100%), leakage remote key test and comprehensive remote control and other functions. …”
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    Article
  16. 276

    Influence of Coal Mining Activities on Soil's Agrochemical and Biochemical Properties by Svetlana Ivanova, Anna Vesnina, Nataly Fotina, Alexander Prosekov

    Published 2023-12-01
    “…The study aimed to examine the impact of the coal mining process on the agrochemical and biochemical parameters of soil. …”
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    Article
  17. 277

    Coal Mine Accidents in Bangladesh: Its Causes and Remedial Measures by MD. MINHAJ UDDIN MONIR, H. M. ZAKIR HOSSAIN

    Published 2012-12-01
    “…Barapukuria coal mine (BCM) is located at Dinajpur district, NW Bangladesh. …”
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    Article
  18. 278

    Effects of overburden characteristics on dynamic failure in underground coal mining by Heather E. Lawson, Douglas Tesarik, Mark K. Larson, Habte Abraham

    Published 2017-01-01
    “…Dynamic failures, or “bumps”, remain an imperative safety concern in underground coal mining, despite significant advancements in engineering controls. …”
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    Article
  19. 279
  20. 280

    Head pillar burst in themechanized stopes of coal mines in Novaky by Miroslav Schvandtner

    Published 2006-09-01
    “…The stability issues of head pillars associated with the introduction of mechanized stopes in the coal mines in Novaky are described in this paper.…”
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    Article