Results 11 to 20 of about 41,310 (228)

Proton charge radius extraction from muon scattering at MUSE using dispersively improved chiral effective field theory

open access: yesPhysical Review D, 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. We study the prospects for the proton radius extraction using the theoretical framework of Dispersively Improved Chiral Effective Field Theory
JOSÉ Manuel Alarcón Soriano   +1 more
exaly   +4 more sources

Response surface analysis of influencing factors of borehole gas extraction effect

open access: yesMeikuang Anquan, 2022
In order to investigate influence of different factors on borehole gas drainage performance, in-situ stress field test in targeted mining area was carried out.
GONG Xuanping   +5 more
doaj   +1 more source

Optimization of multi-hole hydraulic cutting combined extraction parameters under superposition effect

open access: yesGong-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
doaj   +1 more source

Numerical simulation study on gas drainage by interval hydraulic flushing in coal seam working face

open access: yesEnergy 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
doaj   +1 more source

The Effect of Wick Permeability and Porous Radius on Capillary and Entrainment Limit in A Heat Pipe Reactor

open access: yesHittite 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
doaj   +1 more source

Hydraulic cutting cooperative pressure relief and permeability enhancement technology in low permeability outburst coal seam

open access: yesGong-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
doaj   +1 more source

Numerical simulation research on effective influence radius of hydraulic punching in inclined coal seam

open access: yesGong-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
doaj   +1 more source

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