Results 11 to 20 of about 7,042,121 (243)
Shock and Vibration, 2020 Hydraulic punching technology has recently developed into an effective pressure relief measure and permeability enhancement method for soft and low permeability coalbeds.
Dongdong Xu +3 more
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The Effect of Wick Permeability and Porous Radius on Capillary and Entrainment Limit in A Heat Pipe Reactor [PDF]
Hittite Journal of Science and Engineering, 2023 For heat extraction in nuclear systems, interest in the design of nuclear reactors with heat pipes has increased. The determination of heat limitations is one of the remarkable factors for safety when heat pipes are used for nuclear systems.
Gizem Bakır
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Proton charge radius extraction from muon scattering at MUSE using dispersively improved chiral effective field theory [PDF]
, 2023 The MUSE experiment at Paul Scherrer Institute will perform the first measurement of low-energy muon-proton elastic scattering (muon lab momenta 115-210 MeV) with the aim of determining the proton charge radius.
Gil-Domínguez, Fernando +2 more
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Gong-kuang zidonghua, 2021 The effect of a single hydraulic cutting is not very ideal for thick coal seam with low permeability or coal seam with gangue to increase the permeability and release the pressure.
DU Jinlei1 +8 more
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Gong-kuang zidonghua, 2020 Current research on hydraulic punching technology seldom considers that pressure relief range of hydraulic punching in inclined coal seam varies with direction and influence of coal seam inclination on the effective radius of hydraulic punching pressure ...
HUA Mingguo, YAO Banghua, LI Jianwei
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Gong-kuang zidonghua, 2022 In order to solve the problem of difficult prevention and control of coal and gas outburst in thin coal seam, the distribution characteristics of effective extraction area in thin coal seam are analyzed. Due to the limitation of the thickness of the thin
ZHANG Nan, XU Jiuzhou, QIU Liming
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Research on the prediction of liquid CO2 phase transition cracking radius in coal seams
Gong-kuang zidonghua, 2023 Predicting cracking radius is a prerequisite for determining the holes spacing of gas extraction technology by liquid CO2 phase transition cracking and permeability improvement, which directly affects the gas extraction effect.
WANG Changlu +4 more
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Morphological characteristics and permeability evolution of deep mine gas drainage boreholes
Frontiers in Earth Science, 2022 Structural coal has low permeability and high gas content. The increase of mining depth seriously restricts the safe mining of deep mines. Hydraulic flushing is the main means of gas extraction.
Xiao Liu +5 more
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Research on determination method of effective drainage radius of gas drainage borehole
Gong-kuang zidonghua, 2020 In order to solve the problems of complex process and lower accuracy in current determination method of effective drainage radius of gas drainage borehole, a determination method of effective drainage radius was put forward, which is based on the law of ...
LIU Dianping, MA Wenwei
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Meitan xuebao, 2023 The instability and collapse of drainage boreholes is one of the key problems that hinder the efficient extraction of coal-bed methane (CBM). In order to solve the problem of instability and collapse of extraction boreholes in soft coal seams, based on ...
Xuebo ZHANG +4 more
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