Results 1 to 10 of about 3,323,356 (286)

Study of the Roof Deformation Characteristics of Roadway Excavation Face and Unsupported Roof Distance

Advances in Civil Engineering, 2023
In order to address the issue of slow excavation speed caused by various factors affecting the stability of the roof in the excavation face and the unreasonable distance of the unsupported roof, a mechanical model of the roof in the excavation face area ...
Jie Zhang, Shoushi Gao, Yifeng He, Tao Yang, Bing Wang, Li Wang, Haibo Pang, Bing Peng   +7 more
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Hydrodynamic and Geostress Controls on CBM Enrichment in the Anze Block, Southern Qinshui Basin, North China

Geofluids, 2022
The coalbed methane (CBM) resource in the southern Qinshui Basin, North China, is abundant. Proper understanding of the geological control factors on CBM enrichment in Anze Block of southern Qinshui Basin is critical to design efficient CBM development ...
Dameng Liu, Zheng Zhao, Xiaoming Jin, Chao Yang, Wei Chen, Yidong Cai, Yongkai Qiu, Yuejian Lu, Yingfang Zhou   +8 more
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Russian Policy in the Mediterranean: Historical Continuity and International Context

Vestnik RUDN. International Relations, 2021
The article considers the main directions of the Russian Federations foreign policy in the Mediterranean region in the period from 2015 to autumn 2021. The authors present a historical analysis of Russias military presence in the Mediterranean Sea since ...
Konstantin P. Kurylev, Nickolay P. Parkhitko   +1 more
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AB-Net: A Novel Deep Learning Assisted Framework for Renewable Energy Generation Forecasting

Mathematics, 2021
Renewable energy (RE) power plants are deployed globally because the renewable energy sources (RESs) are sustainable, clean, and environmentally friendly.
Noman Khan, Fath U Min Ullah, Ijaz Ul Haq, Samee Ullah Khan, Mi Young Lee, Sung Wook Baik   +5 more
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Coupling Analysis of Water Injection Softening-Precursor Information Prediction of Coal-Rock Mass Based on Energy Conduction

Geofluids, 2022
To further refine the rationality of pressure relief measures, the pressure relief measures are transformed from engineering scale to laboratory scale.
Haidong Xu, Xingping Lai, Jiantao Cao, Huicong Xu, Shuai Zhang   +4 more
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Lower Cambrian Organic-Rich Shales in Southern China: A Review of Gas-Bearing Property, Pore Structure, and Their Controlling Factors

Geofluids, 2022
The Lower Cambrian shales are widely developed in southern China, with greater thicknesses and higher TOC contents. Although the shale gas resource potential has been suggested to be huge, the shale gas exploration and development is not satisfactory. At
Gang Li, Ping Gao, Xianming Xiao, Chengang Lu, Yue Feng   +4 more
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Study on the Upper Limit of Roof Failure in Soft Rock Roadway

Shock and Vibration, 2023
This study addresses the issue of large deformation in soft rock roadways, using the 50213 tailgate of Guantun Coal Mine as a case study. Field investigations were conducted to assess the condition of roadway bolts, anchor cables, and the internal damage
Jie Zhang, Shoushi Gao, Yifeng He, Tao Yang, Tong Li, Yihui Yan, Jianping Sun   +6 more
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Comparative Analysis of the Natural Gas Sector in Ukraine and the Czech Republic, Threats and Development Prospects

GeoScience Engineering, 2021
The natural gas sector plays a significant role in the energy sector. In Ukraine, natural gas accounts for about 30 % of the total consumption of energy resources, while in the Czech Republic only about 16 %.
Oleksandr BOIKO, Antonín KUNZ, Martin KLEMPA, Petr BUJOK   +3 more
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Parallel Water Column Technique for Obtaining a Smooth Output Power of the Pump as a Turbine at a Variable Water Flow Rate

Applied Sciences, 2023
Hydro generation is the simplest and oldest method of electricity generation, with a century of successful operation. Using a pump as a turbine (PAT) is an optimal solution for minimizing the cost, particularly in low-head and small-scale hydro plants ...
Sajjad Hussain, Muhammad Humza, Tanveer Yazdan, Ghulam Abbas, Han-Wook Cho   +4 more
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Social impacts of energy resource planning: assessment methodology and case study

International Journal of Sustainable Energy, 2023
This paper presents an Accounting and Valuation (AV) method within the scope of Integrated Resource Planning (IRP) to analyze social impacts when implementing new energy resources.
Isabella Marchetti, Erik Eduardo Rego
doaj   +1 more source