• Surface Mining Methods and Equipment

    2020-8-25 · UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol. II - Surface Mining Methods and Equipment - J. Yamatomi and S. Okubo ©Encyclopedia of Life Support Systems (EOLSS) Figure 2. Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs.

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  • Research progress in coal and gas co‐mining modes in …

    2020-5-25 · With the development and engineering application of coal and gas co-mining modes in recent years, three modes have gradually formed: the Huainan mode, based on pressure relief mining of the protective seam; the Jincheng mode, based on directional long borehole mining; and the Yangquan/Songzao mode, based on cross-layer borehole mining.

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  • . 《》20214. 《》《 (WJCI) (2020)》. 《》. 《》3. 《》"".

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  • Investigation on Geotechnical Engineering Properties of ...

    2017-8-4 · understand the importance of the height and slope of coal mine spoils. For high value commodities such as coking-coal, economic depths in excess of 275 metres are currently underway in Australian coal mines, with plans to progress to 350m, potentially reaching heights of up to 450m (Bradfield, Simmons, & Fityus, 2013).

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  • Applications of Genetic Engineering in Industry ...

    2021-12-17 · Application # 2. Metabolic Engineering: Application of genetic engineering in protein industry has progressed so much that an entirely new field has merged, called metabolic enginee­ring. In this application of recombinant …

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  • Application of Geophysical Technique in the Coal Mining ...

    2015-8-31 · Although coal is one of the most prevalent energy resources in the world, coal production has been a high risk industry due to its frequent accidents, especially in the developing nations. As well known, the main reason for that problem is that the potential disaster sources are not prospected before coal mining. Hence, it is very necessary to be advanced prospecting …

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  • Environmental Biotechnology: Meaning, Applications and ...

    2021-12-17 · Genetic Engineering: Biotechnology, which is expected to make a great contribution to the welfare of mankind, is an important technology that should be steadily developed. The application of DNA technology, among the different kinds of biotechnology, has the possibility to create new gene combinations that have not previously existed in nature.

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  • International Journal of Coal Science & Technology | Home

    2021-11-19 · The International Journal of Coal Science & Technology is a peer-reviewed open access journal. It focuses on key topics of coal scientific research and mining development, serving as a forum for scientists to present research findings and discuss challenging issues.

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  • Application of Sliding Window-Genetic Programming ...

    SW-GP (Sliding Window-Genetic Programming) algorithm is provided to implement dynamic forecast of monitoring data in order to more effectively utilize coal mine monitoring data to alert and forecast safety accident. In the program, sampling data is obtained by sliding window technology and model is founded automatically by GP algorithm. The result of instance shows …

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  • Application of hybrid artificial intelligence model to ...

    CO 2 geological sequestration in coal seams has gradually become one of the effective means to deal with the global greenhouse effect. However, the injection of CO 2 into the coal seam can have an important impact on the physical and chemical properties of coal, which in turn affects the CO 2 sequestration performance in coal seams and causes a large number of environmental …

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  • Application of Data Mining in Coal Mine Safety Decision ...

    2012-7-25 · The coal mine safety decision systems, such as ventilation safety monitoring system, underground water inrush monitoring system, underground coal and gas emission monitoring system, have been established in many large and medium-sized coal mines. A large amount of original data had accumulated in these systems.

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  • Genetic Engineering: 20 Pros & Cons You Have To Know

    Genetic engineering can be defined as manipulation of an organism''s genes with the help of biotechnology. The first official genetic manipulation happened in 1972 by Paul Berg when he combined the DNA from a monkey virus with the lambda virus. Genetic engineering is a very controversial topic in our society.

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  • CHAPTER 11 Mining Technology

    2007-3-19 · derground coal mining technologies in the West, including:1) capital require- ments, 2) resource recovery, 3) labor, 4) production and productivity, 5) envi-ronmental impacts, and 6) health and safety. A number of technological innovations have been developed recently for under-ground coal mining, but the greatest near-

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  • [PDF] Fault Diagnosis of Coal Mine Equipment Based on ...

    2016-5-31 · The proposed algorithm improves the accuracy and stability compared to the traditional BP neural network and the improved fitness function is applied to the selection operation, and the accuracy of operation is improved by mutation probability and crossover probability. In the face of more and more faults in coal mine equipment, this paper presents …

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  • Genetic Algorithm Optimization of a Large U.K. Coal Mine ...

    Overview on the application of geophysics in coal mining ...

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  • Genetic Algorithm and its application to Big Data Analysis

    2016-9-9 · Genetic Algorithm and its application to Big Data Analysis . Munawar Hasan . Abstract – In this paper, I have described Genetic Algorithm for combinatorial data leading to establishment of mathematical modeling for Information Theory.

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  • GA-Based Early Warning Method for Rock Burst with ...

    Aiming at problem of low efficacy of early warning of rock burst in coal mine, a multisystem and multiparameter integrated early warning method based on genetic algorithm (GA) is proposed. In this method, firstly, the temporal-spatial-intensity information of energy incubation process of rock burst is deeply mined, and the multidimensional precursory characteristic parameter system of …

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  • Hydraulic Fracturing in Underground Coal Mines

    2019-1-18 · Hydraulic Fracturing In Underground Coal Mines . D. J. BLACK1. and N .I. AZIZ Department of Civil, Mining and Environmental Engineering . University of Wollongong . Wollongong NSW 2522 Australia. ABSTRACT . The success of hydraulic fracturing application in stimulating gas drainage from coal seams is influenced by the ground

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  • Application of Hydraulic Flushing in Coal Seams To Reduce ...

    Application of Hydraulic Flushing in Coal Seams To Reduce Hazardous Outbursts in the Mengjin Mine, China ... China, and National Engineering Research Center for Coal and Gas Control, Faculty of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China. Search for other works by this author on: GSW.

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  • Application of Transient Electromagnetic in Detection of ...

    In view of the problem of serious water accumulation and frequent accidents in the coal mine mining area, the distribution range of Yuzhou Shenhuo Kuanfa Mining Coal (hereinafter referred to as Kuanfa Coal Mine) is detected by transient electromagnetic method. The transient electromagnetic emission wire frame is 480m × 480m, frequency is 8Hz, power supply current …

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  • Fuzzy genetic programming method for analysis of ground ...

    2007-9-1 · According to the results of the statistical analysis of a large amount of measured data in underground mining engineering in the metal and non-metal mining area, when the horizontal tensile deformation value E + > 5.00 – 7.00 mm / m, the ground building failure will occur in the mining area. The field engineering measurements show that the ...

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  • Application of Genetic Algorithm to Optimize the …

    2009-12-13 · Abstract: Based on the optimization problem of the number and size in coal mine equipment the principle and procedure of genetic algorithm is introduced. The case of application proves that the genetic algorithm can better optimize …

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  • Numerical Simulation and Application of Mine TEM …

    A hidden water-bearing collapse column (WBCC), directly exposed during coal mining, is a potential source of serious mine flooding. Presently, the transient electromagnetic method (TEM) is widely used, which shows good performance in detecting WBCCs in coal mines.

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  • Chapter 7 The Useof Genetically

    2007-3-19 · dissolved metals could be recovered from mine and coal wastes. Active mining operations cur-rently based on this process (such as those in Rio Tinto, Spain) date back to the 18th century. Presently, large-scale operations in the United States use bacterial leaching to recover copper "rem waste material. Estimates for the contri-

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  • Application of Genetic Algorithm to Optimize the …

    The case of application proves that the genetic algorithm can better optimize the number and size of equipments in coal mine. Discover the world''s research 20+ million members

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  • Estimation of some coal parameters depending on ...

    2021-7-8 · Estimation of some coal parameters depending on petrographic and inorganic analyses by using Genetic algorithm and adaptive neuro-fuzzy inference systems S. Chehreh Chelgani1*, F. Dehghan2 and James C. Hower3 1Department of Mining Engineering, Science and Research Branch, Islamic Azad University, Poonak, Hesarak, Tehran, Iran

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  • Genesis, controls and risk prediction of H2S in coal mine ...

    2021-3-11 · Abnormal H2S concentration in coal mine gas is a serious threat to normal mining activities, which has caused serious loss of life and property in many coal mines. This study explores the genesis ...

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  • Genetic Algorithm Optimization of a Large U.K. Coal …

    2020-11-4 · genetic algorithm, have been developed at the University of Nottingham (Yang, eta/., 1998a, 1998b). The methods have the capability to search large spaces and converge quickly to optimal solutions The paper discusses the application of genetic algo­ rithm techniques to an extensive U.K. coal mine ventilation

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  • Overview on the application of geophysics in coal mining ...

    2013-7-30 · Coal mining is now conducted in a context where there are social concerns about the environmental impacts of coal mining — both in terms of the impact of the mining in the immediate area (e.g. aquifer breaching, surface subsidence effects and loss of amenity and land use) and the more global effects of carbon emissions and climate change.

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