Results 61 to 70 of about 815,128 (154)

Research on Underground Coal Mine Production Process Analysis and Informatization

, 2010
This article analyzes the characteristics of underground coal mine production process, and compares underground coal mine production process with discrete type and continuous type production processes.
Li Jie Feng, Jin Feng Wang, Zhen Zhao, Hua Jie Yu   +3 more
core   +1 more source

Application Research of Cognitive Radio Technology in Coal Mine Underground

Gong-kuang zidonghua, 2010
In order to solve the problem of bad reliability of data transmission of wireless communication system of coal mine underground because the system's parameters such as carrier frequency,modulation mode are settled and so it ca't adapted to change of ...
TANG Liang, ZHANG Shen, GAN Ling, DU Ya
doaj  

Design of Personnel-evacuating Warning System of Coal Mine Underground

, 2011
The paper put forward a design scheme of personnel-evacuating warning system of coal mine underground on basis of existing status of underground communication system of Tianzhuang Coal Mine, introduced working principle, functions and realizing method of
LU Shou-ming
core  

Design of remote monitoring terminal in coal mine underground

, 2018
For problems of inflexible layout, high cost, difficult maintenance, short communication distance and high power consumption of existing communication mode of monitoring terminal in coal mine underground, a design scheme of remote monitoring terminal in ...
ZHANG Xi
core   +1 more source

Final geological and mining exploration and reasons for the brown coal mine Laško closure

Geologija, 2003
Final surface and underground geological and mine exploration data of the brown coalmine LaŠko are presented. The data refer to the period between 1978 and 1990 when most intensive and systematic exploration took place.In more than 225 years of activity,
Ivan Strgar
doaj  

Analysis of typical cases and development trends of coalbed methane (coal mine gas) drainage techniques in coal mining areas

Meitian dizhi yu kantan
Background In the coal mining areas of China, coalbed methane (coal mine gas) occurs under complex conditions, rendering it difficult to achieve its efficient resource exploitation and effective hazard control using a single technique.AdvancesAs ...
Shijun HAO, Wenping JIANG, Jing ZHANG, Xinfeng DU, Haitao MO, Huijun DUAN   +5 more
doaj   +1 more source

Coal mine underground water reservoirs: A sustainable water storage solution for mining areas

Mine-based underground water reservoirs exhibit diverse designs and applications worldwide. Such water storage systems, constructed in active or abandoned mines, can significantly reduce water resource wastage and pollution in mining areas while ...
Song, Zhengyang, Zhao, Yue, Wang, Fei, Blöcher, Guido, Tian, Deyan, Khaledi, Kavan, Petrova, Elena   +6 more
core   +1 more source

A ZigBee routing algorithm adapted to underground coal mine

, 2017
For problem of inconvenient energy supplement of node in ZigBee wireless sensor network of underground coal mine, a ZigBee routing algorithm adapted to underground coal mine was proposed.
WU Linyang, WANG Fengying, WEI Aying, LIU Silin, ZHU Yongqian, YIN Lijie, LIANG Quanquan   +6 more
core   +1 more source

Fracture characteristics and failure mechanisms of coal-rock composites under complex true triaxial stress paths

Scientific Reports
Coal-rock composite structures are common in deep roadway roofs and floors, and their instability is strongly affected by excavation-induced unloading and coal-rock relative thicknesses.
Chenyang Zhang, Yang Hao, Hongyuan Ma, Yiqun Zhang, Farun Li, Quanfu Liu   +5 more
doaj   +1 more source

Research of wired broadband information transmission of coal mine underground

Gong-kuang zidonghua, 2013
The paper pointed out that realization of unattended operation of fixed workplace of coal mine underground and limited worker operation of fully mechanized mining face and fully mechanized caving face needs to establish control system of coal mine with ...
SUN Ji-ping
doaj