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Longwall Top Coal Caving Method and Its Future in China

Zhao Jingche

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 9-16

Abstract:

This paper gives a brief introduction of the longwall top coal caving (LTCC) method which has hada strong impact on China´s coal mining industry since 1980 s.Great contribution to LTCC has been

Keywords： coal mining     longwall top coal caving     roof control     recovery     coalmine safety    

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Full-mechanized caving mining technology of extremely thick and hard coal-seam with hard roof in shallow

Zhang Zhongwen,Wu Jinan

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 107-112

Abstract:

Top-coal caving difficulty degree and rational mining method were analyzedby theoretical method on the basis of the 4th coal-seam condition of Pingshuo Mining area.For improving top-coal caving degree, the parameters of full-mechanized caving mining face were obtainedratio would be realized by lengthening mining face and adding mining height in shallow buried hard coal-seam

Keywords： shallow buried depth     hard coal-seam with hard roof     top-coal caving difficulty degree     full-mechanizedcaving mining with large mining-height    

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Technology of Coal-Rock Mass Hydraulic Fracture Weakeningand Its Development

Huang Bingxiang,Deng Guangzhe,Liu Changyou

Strategic Study of CAE 2007, Volume 9, Issue 4,   Pages 83-88

Abstract:

Technologic problems of top coal recovery ratio, rock burst, coal spontaneouscombustion and gas accumulation induced by hard top-coal or roof's fall in coal mining were introducedCurrent research and development trend of hydraulic fracture weakening for hard top-coal or roof was

Keywords： hard top-coal(roof)     hydraulic fracture     crack expanding     mescoscopic structure    

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The Recent Technological Development of Intelligent Mining in China

Jinhua Wang,Zenghua Huang

Engineering 2017, Volume 3, Issue 4,   Pages 439-444 doi: 10.1016/J.ENG.2017.04.003

Abstract: years, China has seen the technological development of intelligent mining and the application of the longwallautomation technology developed by the Longwall Automation Steering Committee.the surface control center, since intelligent mining can be applied to extract middle-thick or thick coal

Keywords： Coal mine     Intelligent mining     Mechanized mining work face     Longwall Automation Steering Committee     Intelligent    

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Two-dimensional modeling of sintering of a powder layer on top of nonporous substrate

Tiebing CHEN, Yuwen ZHANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 143-148 doi: 10.1007/s11465-010-0006-0

Abstract: Selective laser sintering (SLS) of a two-component metal powder layer on the top of multiple sintered

Keywords： laser     sintering     melting     solidification     heat transfer    

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Classification Model and Its Application of Stability of Roadway Driving Along Next Goaf for Fully-mechanized Caving

Zhu Chuanqu,Wang Weijun,Shi Shiliang

Strategic Study of CAE 2006, Volume 8, Issue 3,   Pages 35-38

Abstract:

The stability of roadway driving along next goaf for fully-mechanized caving face is syntheticallyinfluenced by many factors such as intensity of surrounding rock, intensity of coal, mining depth, jointand crack of surrounding rock, mining operation, top coal thickness, width of pillar and roadway sectionfunctions of the factors influencing the stability of roadway driving along next goaf for fully-mechanized cavingsupport design, construction and management of roadway driving along next goaf for fully-mechanized caving

Keywords： roadway driving along next goaf for fully-mechanized caving face     stability of surrounding rock     classification    

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The most influential “Top 10 Events” in carbon neutrality and climate change in 2022

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 1-4 doi: 10.1007/s11708-023-0869-5

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Analysis of catchment evapotranspiration at different scales using bottom-up and top-down approaches

Xiangyu XU, Dawen YANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 65-77 doi: 10.1007/s11709-010-0002-9

Abstract: ., top-down approach) are used to predict actual evapotranspiration in nine sub-catchments, and the wholeFrom the analysis at different time scales through comparison of the top-down and the bottom-up methods

Keywords： catchment evapotranspiration     distributed hydrological model     water-energy balance model     top-down and bottom-up    

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Development of clean energy and environmental technologies to address humanity’s top problems

Geoff G. X. Wang

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 1,   Pages 1-2 doi: 10.1007/s11705-011-1145-5

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GENOME EDITING: A GROUND BREAKING RESEARCH HAS BEEN RANKED TOP 10 ENGINEERING FRONTS FROM 2017 TO 2021

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 2,   Pages 309-311 doi: 10.15302/J-FASE-2022440

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Analysis and Insights from the MIT Technology Review “Top 10 Breakthrough Technologies” in the Past Six

Tu Hailing,Sun Zongtan,Yao Yuan and Xu Yuan

Strategic Study of CAE 2017, Volume 19, Issue 5,   Pages 85-91 doi: 10.15302/J-SSCAE-2017.05.015

Abstract:

The MIT Technology Review has published "the world's top 10

Keywords： technology review     “top 10 breakthrough technologies”     commerce     industry     society    

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Top-geoherbs of traditional Chinese medicine: common trait, quality characteristics and formation

Luqi Huang, Lanping Guo, Chaoyi Ma, Wei Gao, Qingjun Yuan

Frontiers of Medicine 2011, Volume 5, Issue 2,   Pages 185-194 doi: 10.1007/s11684-011-0141-y

Abstract: Top-geoherbs used in China are always featured with high qualities, and they grow in specified areasRecently, researches on top-geoherbs have attracted increasing attention in China and other countries, common trait and quality characteristics of top-geoherbs, and explains the forming mechanism includingIn addition, it introduces the influence of human factors on the quality of top-geoherbs.Finally, it proposes some problems that should be paid attention to in the researches on top-geoherbs

Keywords： top-geoherbs     common trait     quality characteristics     formation     biological mechanism    

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Status and Suggestion for Modern Coal Chemical Industry and Clean Coal Technology

Xie Kechang

Strategic Study of CAE 2003, Volume 5, Issue 6,   Pages 15-24

Abstract:

The important role of coal played in TPES was described, and the status of modern coal chemical industryand clean coal technologies was analyzed.on the scientific research experiences of the author, strategy and suggestion for the development of coalchemical industry and elcan coal technology in China were proposed.

Keywords： coal chemical industry     clean coal technology     strategy    

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Performance of a bi-layer solar steam generation system working at a high-temperature of top surface

Jinxin ZHONG, Congliang HUANG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 141-148 doi: 10.1007/s11708-021-0725-4

Abstract: Many efforts have been focused on enhancing the vapor generation in bi-layer solar steam generation systems for obtaining as much pure water as possible. However, the methods to enhance the vapor temperature is seldom studied although the high-temperature vapor has a wide use in medical sterilization and electricity generation. In this work, to probe the high-temperature vapor system, an improved macroscopic heat and mass transfer model was proposed. Then, using the finite element method to solve the model, the influences of some main factors on the evaporation efficiency and vapor temperature were discussed, including effects of the vapor transport conditions and the heat dissipation conditions. The results show that the high-temperature vapor could not be obtained by enhancing the heat-insulating property of the bi-layer systems but by applying the optimal porosity and proper absorbers. This paper is expected to provide some information for designing a bi-layered system to produce high-temperature vapor.

Keywords： solar steam generation     solar energy     numerical method     porous material    

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Title Author Date Type Operation

Longwall Top Coal Caving Method and Its Future in China

Zhao Jingche

Journal Article

Full-mechanized caving mining technology of extremely thick and hard coal-seam with hard roof in shallow

Zhang Zhongwen,Wu Jinan

Journal Article

Technology of Coal-Rock Mass Hydraulic Fracture Weakeningand Its Development

Huang Bingxiang,Deng Guangzhe,Liu Changyou

Journal Article

The Recent Technological Development of Intelligent Mining in China

Jinhua Wang,Zenghua Huang

Journal Article

Two-dimensional modeling of sintering of a powder layer on top of nonporous substrate

Tiebing CHEN, Yuwen ZHANG,

Journal Article

Classification Model and Its Application of Stability of Roadway Driving Along Next Goaf for Fully-mechanized Caving

Zhu Chuanqu,Wang Weijun,Shi Shiliang

Journal Article

The most influential “Top 10 Events” in carbon neutrality and climate change in 2022

Journal Article

Analysis of catchment evapotranspiration at different scales using bottom-up and top-down approaches

Xiangyu XU, Dawen YANG,

Journal Article

Development of clean energy and environmental technologies to address humanity’s top problems

Geoff G. X. Wang

Journal Article

GENOME EDITING: A GROUND BREAKING RESEARCH HAS BEEN RANKED TOP 10 ENGINEERING FRONTS FROM 2017 TO 2021

Journal Article

Analysis and Insights from the MIT Technology Review “Top 10 Breakthrough Technologies” in the Past Six

Tu Hailing,Sun Zongtan,Yao Yuan and Xu Yuan

Journal Article

Innovative approach of low carbon and efficient utilization of coal resources: The polygeneration systemof a combination of the gasified coal gas and the pyrolyzed coal gas to form the synthetic gas

Kechang XIE, Fan LI

Journal Article

Top-geoherbs of traditional Chinese medicine: common trait, quality characteristics and formation

Luqi Huang, Lanping Guo, Chaoyi Ma, Wei Gao, Qingjun Yuan

Journal Article

Status and Suggestion for Modern Coal Chemical Industry and Clean Coal Technology

Xie Kechang

Journal Article

Performance of a bi-layer solar steam generation system working at a high-temperature of top surface

Jinxin ZHONG, Congliang HUANG

Journal Article