Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Jiakun Lv"'
Autor:
Keke Xing, Jingyi Cheng, Zheng Zhen, Zhijun Wan, Zepeng Han, Wanzi Yan, Jiakun Lv, Yifei Yang
Publikováno v:
Heliyon, Vol 10, Iss 18, Pp e37441- (2024)
Mining strip coal pillars left due to strip mining is important to resource-exhausted coal mines in eastern China. Backfilling mining is an effective means to mine strip coal pillars, which could decrease high stress and high energy release. However,
Externí odkaz:
https://doaj.org/article/434eac7d9d7340b2a552115ee3aef7cd
Publikováno v:
Sensors, Vol 23, Iss 21, p 8853 (2023)
The safety valves of powered supports control the maximum working resistance, and their statuses must be known to ensure the safety of both the support and the overlying strata. However, the inspection of powered support valves involves manual or sem
Externí odkaz:
https://doaj.org/article/dff575da8c774512a5c62a92d4cc5160
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
In this paper, we employ the direct discontinuous Galerkin (DDG) method for the first time to extrapolate the coronal potential magnetic field (PF) with the source surface (SS) and call the developed numerical model as the DDG-PFSS solver. In this so
Externí odkaz:
https://doaj.org/article/dc123ed9bb2b40e8b4e5af4accdb1137
Publikováno v:
Geofluids, Vol 2022 (2022)
Thermal stimulation is a supplementary technique for enhancing gas recovery from coalbed methane (CBM) reservoirs that has received considerable attention worldwide. Investigating gas and heat transfer in coal seams during thermally enhanced CBM reco
Externí odkaz:
https://doaj.org/article/3461c91a0c904b5eab8d06a16a885000
Publikováno v:
Mathematics, Vol 10, Iss 19, p 3545 (2022)
Measuring the straightness of the scraper conveyor, which is an indispensable piece of equipment in a fully mechanized coal face, can prevent accidents such as derailment of the shearer and is also important for the precise positioning of the shearer
Externí odkaz:
https://doaj.org/article/8bbd5b5c1ae24e519817a45628c70c99
Publikováno v:
Geofluids, Vol 2021 (2021)
Cutting force is the key signal to realize intelligent control of shearer and mastering the change process of cutting force is helpful to improve the adaptive cutting of shearer. In this paper, full scale rock cutting tests are used to carry out sing
Externí odkaz:
https://doaj.org/article/10ae47f7058d40dcb59eb986f6ca1d07
Publikováno v:
Applied Sciences, Vol 10, Iss 6, p 2176 (2020)
Automation and intelligent coal mining comprise the most important fields in coal mining technology research. The key to automation and intelligent coal mining is the automated mining of the working face, and accurate positioning of the shearer is on
Externí odkaz:
https://doaj.org/article/54cd9bda24f44c9487aabd9b79d94068
Publikováno v:
Advances in Civil Engineering, Vol 2018 (2018)
This paper presents an experimental investigation of the fatigue properties of limestone subjected to triaxial compression with axial cyclic loading. Tests were conducted on intact limestone samples with a loading frequency of 0.5 Hz and a confining
Externí odkaz:
https://doaj.org/article/347ebb44daad4f3aa1c95e652bbe79b4
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 519:6297-6332
The development of an efficient and accurate method for boundary condition treatments is of fundamental importance to data-driven magnetohydrodynamic (MHD) modelling of the global solar corona and solar active region. Particularly, in a 3D spherical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef38b6f4530a3338a5457f4b860b3b17
https://doi.org/10.1093/mnras/stac3818
https://doi.org/10.1093/mnras/stac3818
As a renewable clean energy associated with coal measures, mine geothermal is being widely developed. Accurate evaluation of coal measures associated geothermal resources can help us realize the effective development and utilization of deep minerals
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::631a155f02249c5e135fca429d16871e
https://doi.org/10.21203/rs.3.rs-2134259/v1
https://doi.org/10.21203/rs.3.rs-2134259/v1
