Results 11 to 20 of about 9,481,871 (303)
Study on Hydrological Calculation Model of Flood Control in the Middle and Lower Reaches of the Chuhe River under the Background of Urbanization [PDF]
E3S Web of Conferences, 2023 The traditional method of hydrology and water conservancy calculation is based on the assumption of natural runoff, while the applicability of method has weakened in the urbanization-affected river basins.
Hu Jian +4 more
doaj +1 more source
Frontiers in Energy Research, 2022 The energy efficiency characteristics of the turbine, cavitation performance of the runner, and operation stability of the unit are the three major concerns of a hydropower field, the latter two factors leading to the units’ cavitation and stability ...
Ye Zhou +3 more
doaj +1 more source
Support state perception and data processing technology of hydraulic support
Gong-kuang zidonghua, 2021 The support state perception and data processing of hydraulic support are the key factors to realize adaptive support of hydraulic support and advance prediction and early warning of roof disasters.
PANG Yihui1,2
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Hydraulic support straightening method based on maximum correntropy Kalman filtering algorithm
Gong-kuang zidonghua, 2022 The existing hydraulic support straightening method is affected by the sensor measurement error and the hydraulic support moving error, which make the straightening error larger.
SONG Danyang +6 more
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Sustainability, 2023 The hydraulic support is the key equipment of surrounding rock support in a stope, and thus monitoring the attitude of the hydraulic support has an important guiding role in the support selection, operation control and rock pressure analysis of the ...
Ningning Chen +6 more
semanticscholar +1 more source
Posture and Dynamics Analysis of Hydraulic Support with Joint Clearance under Impact Load
Machines, 2023 A hydraulic support is one of the key pieces of equipment in a fully mechanized coal-mining face. The shaft is seriously worn due to repeated support shifting in coal-mining operations, and the hydraulic support bears a large amount of impact load in the
Q. Zeng +4 more
semanticscholar +1 more source
Frontiers in Earth Science, 2023 Introduction: In the coal mining process, the intense mining pressure is an important factor hindering the safe and efficient production of the working face.
Jianjun Dong +3 more
semanticscholar +1 more source
Applied Sciences, 2023 In longwall top coal caving (LTCC), due to the fracture and migration of top coal, the roof will break and collapse, which causes serious impact damage to hydraulic support.
Q. Zeng, Zhaoji Li, L. Wan, Dejian Ma
semanticscholar +1 more source
Gong-kuang zidonghua, 2022 The intelligent working face has abnormal working conditions such as lost support, uneven straightness, and support skew after the automatic following of hydraulic support. Therefore, manual regulation and control are needed.
ZHANG Jintao +3 more
doaj +1 more source
Machines, 2023 Uniform wall thickness plays an essential role in avoiding forming failure in incremental sheet forming. However, it is challenging to promote the uniform distribution of wall thickness in single-pass forming of high wall angle and complex three ...
Miao Shang +5 more
semanticscholar +1 more source