Results 41 to 50 of about 2,530 (155)

Experimental study on energy dissipation and fragmentation characteristics of gas-bearing coal under combined dynamic and static loading

open access: yesMeitan xuebao
To explore the energy dissipation and fragmentation characteristics of gas-bearing coal under combined dynamic and static load, the impact experiment of gas-bearing coal under different impact velocities and axial compressive stress ratios was carried ...
Huaiqian LIU   +6 more
doaj   +1 more source

Application status and development tendency of automation control technology for fully mechanized working face

open access: yesGong-kuang zidonghua, 2013
The paper introduced research development and actual application status of automation control technology for fully mechanized working face at home and abroad, indicated development tendency of automation control technology for fully mechanized working ...
HUANG Zeng-hua
doaj   +1 more source

Research and application of explosion-proof special encapsulation lithium battery power supply for mining industry

open access: yesMeitan kexue jishu
Electrification and intellectualization are the inevitable trends in the development of mining equipment, and explosion-proof lithium battery power supplies represent a critical technical approach for the “oil-to-electricity” conversion of mobile heavy ...
Caiyun ZANG   +5 more
doaj   +1 more source

Discussion on Realization of Unmanned Fully Mechanized Mining Technology

open access: yesDEStech Transactions on Materials Science and Engineering, 2017
This paper pointed out the key technology and existing problems of intelligent and unmanned fully-mechanized mining face. The solution to the key technical problems was given. The study proved that intelligent production model was an effective means of the unmanned mining in fully mechanized coal mining face, and had the application value of promotion ...
Hong-mei LIN, Xue-wen LI
openaire   +2 more sources

The Effect of Organic Acid Modification on the Pore Structure and Fractal Features of 1/3 Coking Coal

open access: yesFractal and Fractional
The acidification modification of coal seams is a significant technical measure for transforming coalbed methane reservoirs and enhancing the permeability of coal seams, thereby improving the extractability of coalbed methane.
Jiafeng Fan, Feng Cai
doaj   +1 more source

Enhancement method of degraded images in complex environment of coal mine comprehensive excavation working face

open access: yesMeitan kexue jishu
To solve the problem of visual imaging degradation caused by the environmental factors of high dust and fog and low illumination in coal mine comprehensive excavation working face, the enhancement method for coal mine degraded images is proposed. Firstly,
Dongyang ZHAO   +5 more
doaj   +1 more source

Onboard Decision-making System of Unmanned Mine Truck

open access: yesKongzhi Yu Xinxi Jishu, 2022
At present, the research on unmanned mine truck system on-board decision system in mine scenarios at home and abroad is still in the initial stage, and its research focus is mainly on global planning and scheduling to improve overall safety and efficiency of the system, while ignoring the research on the mine truck independent decision method based on ...
WANG Jia   +4 more
openaire   +1 more source

Experimental study of the static mechanical response of impact-damaged coal

open access: yesAin Shams Engineering Journal
The intense dynamic loading induced by mechanical coal cutting and blasting pre-damage the bearing capacity of surrounding rock. To examine the influence of impact pressure on the evolution of damage to the coal and the effects on its static mechanical ...
Chuan-qi Zhu   +3 more
doaj   +1 more source

Model-Based Design of the 5-DoF Light Industrial Robot

open access: yesRobotics
With the application and rapid development of light industrial robots, it is vital to accelerate the prototype design to fulfill the demands of shortening the robot’s production cycle, owing to rapid update iterations. Since the traditional design method
Yongping Shi   +6 more
doaj   +1 more source

Development path of intelligent, safe, green coal mining and clean, efficient utilization technology

open access: yesInternational Journal of Coal Science & Technology
Energy security is the cornerstone of national security and stable development. Coal is the safest, most economical, and most reliable energy source that China can utilize to achieve intelligent green development and clean, efficient energy use at this ...
Guofa Wang   +10 more
doaj   +1 more source

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