Results 41 to 50 of about 34,337 (295)
Meikuang Anquan, 2020 In order to improve the top coal resources at both ends of fully mechanized top coal caving face in extra-thick seam and the recovery rate of coal resources during the initial caving, reduce the impact of initial weighting on the working face during the
SUN Zhenping
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Meitan kexue jishu, 2023 The excavation thickness of the coal seam and the corresponding motion space of the overlying strata are so large in the fully-mechanized top coal caving face, that roof accidents are occur easily.
XU Gang +8 more
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Research status of intelligent technology of shearer in fully mechanized working face
Gong-kuang zidonghua, 2022 This paper introduces the research status of intelligent technology of shearer at home and abroad. Since the 1990s, the intelligent technology of shearers has entered a mature stage of development abroad, and leading innovations have been made in shearer memory cutting, coal and rock identification, airborne main control software and remote monitoring.
ZHAO Yihui, ZHAO Youjun, ZHOU Zhan
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Analysis of the factors influencing the level of professional health and the biological age of miners during underground mining of coal seams [PDF]
, 2018 Purpose. Setting of the work environment of workers at mining enterprises during thin coal seams extraction influence on the character and the rate of their aging by determination of the biological age and estimation of the occupational diseases ...
Cheberiachko, S +3 more
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Massive data mining and analysis platform design for fully mechanized working face
Gong-kuang zidonghua, 2023 The current real-time and integrity of massive data acquisition in fully mechanized working faces are poor. The abnormal data cleaning takes a long time. The data mining delays are large. This leads to low utilization rate of fully mechanized working data and incapability to assist management in issuing decision-making instructions in real-time.
WANG Hongwei +4 more
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Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories
Advanced Energy Materials, EarlyView.In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen +4 more
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Agribusiness, EarlyView.Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
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Strategic Management Journal, EarlyView., 2023 Abstract Research Summary Using detailed plant‐ and individual‐level data from a major Japanese cotton spinning company in the early 20th century, we examine the within‐firm allocation of skilled human capital in conjunction with investment in physical capital, accompanying the firm's evolving strategic priorities.
Shotaro Yamaguchi +3 more
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Study of Abutment Pressure on Fully Mechanized Working Face Advancing Speed
Mine Engineering, 2016 在煤矿生产中，工作面的推进速度是影响支撑压力的重要因素之一。文章基于火铺矿21126综采工作面生产技术及地质条件，采用现场矿压实测及FlAC3D数值模拟，研究了不同推进速度时的矿压显现规律。研究表明，工作面前方35~80 m区段内，应力变化较大，受采动影响较为强烈;工作面前方35 m范围内应力变化剧烈，受采动影响十分严重。推进速度大于7 m/d时石门右侧塑性区范围加大，右侧围岩松散垮落现象明显，支护工作难度加大，所以工作面推进速度为5~7 m/d较为合理。 In coal mine production, the speed of working face advancing is one of the important factors affecting the support pressure.
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Target detection of the fully mechanized working face based on improved YOLOv4
Gong-kuang zidonghua, 2023 The accurate detection of key equipment and personnel in the fully mechanized working face is an important link to realize the information perception of intelligent coal mining. The traditional target detection algorithm realizes the target detection by extracting the features manually.
WANG Keping +3 more
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