Results 61 to 70 of about 800 (179)

Research and application of key technology of intelligent coal caving in high gas fully-mechanized top coal caving face [PDF]

, 2023
At present, intelligent coal caving in high gas fully mechanized top coal caving face is facing many problems, mainly including poor recognition accuracy of coal gangue, incomplete control research on coal flow and gas concentration, cumbersome design ...
Yao CUI, Senlang ZHANG, Zhuang YE, Jinghong WU   +3 more
core   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source

Research on key technologies of intelligent fully mechanized mining on working face with large mining height

, 2018
In order to solve problems of large number of workers and high labor intensity on fully mechanized mining face with large mining height, according to actual situation of No.2 Coal Mine of Huangling Mining Group Co., Ltd., technical difficulties such as ...
FAN Jingdao
core   +1 more source

Structure Optimization and Signal Enhancement of Three Coil Electromagnetic Abrasive Particle Sensor

Taiyuan Ligong Daxue xuebao
Purposes In order to improve the detection accuracy of electromagnetic abrasive particles on small particles, the influencing factors of the induced signal of one-excitation, two-in-ductive three-coil electromagnetic abrasive sensor are studied, and ...
WANG Yuewei, PANG Xinyu, QIN Guojun, GUAN Chongyang, HU Shouxin, LYU Kaibo, ZHANG Xuemei   +6 more
doaj   +1 more source

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Research and application of automatic mining technology of unmanned fully-mechanized coal mining face

, 2015
In view of requirement of high efficient mining for unmanned fully-mechanized coal mining face, an automatic mining technology scheme of unmanned fully-mechanized coal mining face was proposed which takes cooperative control technology as core, automatic
WANG Feng
core   +1 more source

Intelligent Fault Diagnosis of Rolling Bearing Based on the Depth Feature Fusion Network

IEEE Access
An intelligent fault diagnosis method of rolling bearings based on a depth feature fusion network was proposed to solve the problems of a single original signal, large noise interference and difficult diagnosis of varying working conditions of rolling ...
Zihan Feng, Hua Ding, Ning Li, Guoshu Pu, Wenbo Gong   +4 more
doaj   +1 more source

National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas

Sustainable Development, EarlyView.
ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne, Adis Dzebo, Zoha Shawoo, Mario Cardenas, Pierrick Chalaye, Alexia Faus Onbargi, Cassilde Muhoza, Patricia Nicdao, Nokwethaba Makhanya, Navam Niles, Priyatma Singh   +10 more
wiley   +1 more source

Straightness solution of the fully mechanized working face based on VR and DT technology

, 2023
The straightness problem is one of the neck problems in the intelligent construction of the fully mechanized working face. The key to solve this problem is to obtain the position and posture of the scraper conveyor or hydraulic support group. At present,
XIE Jiacheng, YAN Zewen, SHEN Weidong, WANG Xuewen, LI Suhua, WANG Yirong   +5 more
core   +1 more source

The Economic and Ecological Impact of Soy in Brazil: A Synthetic Control Method Approach

Journal of Agricultural Economics, EarlyView.
ABSTRACT In recent decades, soy expansion in Brazil has generated significant environmental, social and economic impacts. However, there is no consensus about benefits and drawbacks, calling for a more careful account of the economic and ecological diversity of the territories where this phenomenon has been unfolding.
Stefano Ghinoi, Simone Piras, Luca Tasciotti, Valdemar João Wesz Junior   +3 more
wiley   +1 more source