Results 21 to 30 of about 441,091 (198)
Gong-kuang zidonghua, 2023 In the process of hydraulic cutting in low permeability and high gas coal seams, there are problems such as unclear cutting disturbance range and unclear optimal hole spacing for cutting drilling.
NI Xing
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Numerical simulation study on gas drainage by interval hydraulic flushing in coal seam working face
Energy Exploration & Exploitation, 2021 In order to solve the problem of difficult gas extraction in coal mine, a method of gas extraction from coal seam by interval hydraulic flushing is put forward.
Shengrong Xie +3 more
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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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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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Composite Vector Particles in External Electromagnetic Fields [PDF]
, 2015 Lattice quantum chromodynamics (QCD) studies of electromagnetic properties of hadrons and light nuclei, such as magnetic moments and polarizabilities, have proven successful with the use of background field methods.
Davoudi, Zohreh, Detmold, William
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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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Threshold and jet radius joint resummation for single-inclusive jet production [PDF]
, 2017 We present the first threshold and jet radius jointly resummed cross section for single-inclusive hadronic jet production. We work at next-to-leading logarithmic accuracy and our framework allows for a systematic extension beyond the currently achieved ...
Liu, Xiaohui +2 more
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Extraction of the Neutron Charge Radius from a Precision Calculation of the Deuteron Structure Radius. [PDF]
Physical Review Letters, 2019 We present a high-accuracy calculation of the deuteron structure radius in chiral effective field theory. Our analysis employs the state-of-the-art semilocal two-nucleon potentials and takes into account two-body contributions to the charge density ...
A. Filin +5 more
semanticscholar +1 more source