Results 11 to 20 of about 6,997,530 (249)
Inverse kinematics analysis of hydraulic support
For problem that existing forward kinematics analysis methods of hydraulic support could not predict attitude of top beam accurately, an inverse kinematics analysis method of hydraulic support was put forward.
LU Xuliang, YAN Haifeng, ZHANG Li
doaj +2 more sources
SUPPORT VECTOR MACHINE FOR HYDRAULIC SUPPORT RELIABILITY PREDICTION
In order to enhance the competitiveness of the domestic hydraulic support. It is imperative to carry out reliability engineering. The reliability evaluation of the hydraulic support in service can effectively provide reference for the development and ...
DING Fei +3 more
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Design of an automated tension infiltrometer for unsaturated hydraulic conductivity measurement [PDF]
A tension infiltrometer for field use, where both water level changes measurement and tension settings could be automated, was built in-house. Differential pressure transducers were used to automate the water level measurement in the reservoir.
Špongrová, Kamila
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The intelligence of fully mechanized working face is a key link in the intelligence of coal mines. The perception and analysis of hydraulic support state is the premise and foundation of intelligent control of fully mechanized working face.
LI Jian, REN Huaiwei, GONG Shixin
doaj +1 more source
Stone stability in breakwater toes based on local hydraulic conditions [PDF]
This study investigates the stability of rocks in breakwater toes. Previous studies have coupled the toe stability directly to the wave height, which is not physically accurate.
Peters, R.B.M. (Ruben) +1 more
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Research on principle of supporting status classification and sensing of hydraulic support
Aiming at problem that single attitude measurement of hydraulic support can not fully reflect comprehensive state of hydraulic support, and can not realize accurate perception of supporting state of hydraulic support, taking two column shield hydraulic ...
ZHANG Desheng +5 more
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The hydraulic support automatic follow-up control should have the performance of high support, fast support moving, large moving distance, etc. Among these performance, under the premise of ensuring stope safety, shortening the time of working face empty
ZHOU Rulin, QIAO Zishi, MENG Lingyu
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Uncertainty in the determination of soil hydraulic parameters and its influence on the performance of two hydrological models of different complexity [PDF]
Data of soil hydraulic properties forms often a limiting factor in unsaturated zone modelling, especially at the larger scales. Investigations for the hydraulic characterization of soils are time-consuming and costly, and the accuracy of the results ...
Facchi, A. +18 more
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Memory attitude monitoring method for hydraulic support based on grey theory
Existing hydraulic support monitoring methods can only monitor single support without fusion analysis of monitoring data of united hydraulic supports and have low utilization ratio of monitoring data.
WANG Yafei +3 more
doaj +1 more source
Intelligent cooperative control of hydraulic support inspired by driveless car
For problems such as low control accuracy, poor coordination and uneven pushing of hydraulic support in fully-mechanized coal mining face, an intelligent cooperative control method of hydraulic support is proposed based on driverless car technology ...
NIU Jianfeng
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