Results 61 to 70 of about 8,555 (228)
Energy Science &Engineering, EarlyView.This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin +4 more
wiley +1 more source
Health Monitoring of Carbon Fiber Reinforced Building Materials Based on Phase Unwrapping Algorithm
IEEE AccessDuring the construction process, building structures are affected by environmental factors such as earthquakes. Engineers cannot monitor real-time data related to the status of building materials, such as whether the structure is complete, whether nodes ...
Min Yan +3 more
doaj +1 more source
Recovery Factor of Pure Helium Injection in Depleted Gas Reservoirs and Its Influencing Factors
Energy Science &Engineering, EarlyView.This study employs compositional numerical simulation to systematically investigate the effects of injection rate, production rate, storage duration, and injection‐production scheme on pure helium recovery in depleted gas reservoirs. Low injection rates reduce viscous fingering while high production rates maximize near‐wellbore helium extraction ...
Shijie Zhu +6 more
wiley +1 more source
Meikuang AnquanThe western Inner Mongolia region is characterized by widespread weakly cemented soft rock strata, where the presence of thick overlying gravel layers exerts a significant influence on roof failure and stress distribution.
Chuang ZHANG +9 more
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Energy Science &Engineering, EarlyView.This study mainly explores the instability characteristics of roadways near faults in the working face. Taking the 51104 transportation roadway of the 51104 working face in Shengxin Coal Mine as the main research object, through theoretical analysis, borehole inspection, numerical simulation and on‐site mine pressure observation, the instability ...
Shuaifeng Yin +4 more
wiley +1 more source
Frontiers in PediatricsBackgroundMycoplasma pneumoniae (MP) is a leading cause of community-acquired pneumonia in children, with a significant increase in incidence following the COVID-19 pandemic. The emergence of macrolide-resistant M.
Hui Liu +5 more
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Clinical and Experimental Hypertension, 2023 Background Fibroblast growth factor receptor (FGFR)2 expression was decreased in hypertension patients while its role in hypertension was not explored. This experiment aimed to investigate the expression ofFGFR2 in angiotensin II (Ang II)-induced human ...
Kun Jiao, Ping Su, Yongling Li
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Energy Science &Engineering, EarlyView.论文陈述 Paper Statement 本研究揭示了不同宏观煤岩类型的差异化控气机制:半亮煤是主要“储气核心,” 光亮煤为关键“渗流通道,” 暗淡煤则是“初期高产贡献者”。这为深层煤层气甜点优选与定制开发提供了关键理论依据。 This study reveals the differentiated gas‐controlling mechanisms of different macroscopic coal lithotypes: semibright coal acts as the primary “gas storage core,” bright coal serves as the critical “seepage channel,” and dull coal functions
Heng Li +6 more
wiley +1 more source
Mixture-proportioning design of cement soil containing Pisha sandstone for mine filling
Case Studies in Construction MaterialsThe Ordos area, known for its abundant coal reserves, faces significant environmental challenges annually due to coal mining. This mining activity not only leads to extensive mining subsidence and environmental pollution but also exacerbates soil erosion,
Yu Jing +6 more
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Application of Improved Interactive Multimodel Algorithm in Player Trajectory Feature Matching
Complexity, 2021 The original target tracking algorithm based on a single model has long been unable to meet the complex and changeable characteristics of the target, and then there are problems such as poor tracking accuracy, target loss, and model mismatch.
Xi Du, Qi Ao, Lu Qi
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