Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Dongmin MA"'
Publikováno v:
Meitan xuebao, Vol 49, Iss 9, Pp 3859-3871 (2024)
The study on the evolution characteristics of coal permeability is of great significance for rationally determining gas extraction parameters and increasing gas extraction efficiency. In order to study the effects of different coal stresses and gas p
Externí odkaz:
https://doaj.org/article/018bd63cb39e414ab0b5d70f53291d00
Publikováno v:
International Review of Research in Open and Distributed Learning, Vol 25, Iss 3 (2024)
Artificial intelligence (AI) has undergone considerable advancement in the contemporary period and represents an emerging technology in higher education. Cultural contexts significantly shape individuals’ perceptions, attitudes, and behaviors, par
Externí odkaz:
https://doaj.org/article/95cfdf0302be4df5931858e0036a2f22
Publikováno v:
Energies, Vol 17, Iss 10, p 2358 (2024)
There was an error in the original publication [...]
Externí odkaz:
https://doaj.org/article/dd41dd3f17b849958d1bd63d4934f569
Study on gas content variation and main controlling of low-rank coal in Huanglong Jurassic coalfield
Autor:
Yusong Ji, Dongmin Ma, Yue Chen, Weibo Li, Guofu Li, Chao Zheng, Zhuoyuan Ma, Liya Wang, Xin Wang
Publikováno v:
Energy Exploration & Exploitation, Vol 41 (2023)
In order to study the controlled factors and variation of gas content in deep low-rank coal reservoirs, taking No.4 coal of Jurassic Yan’an Formation in Huanglong coalfield as an example, collects the production data and prepares the coal samples.
Externí odkaz:
https://doaj.org/article/d52e7c359d7d49d7a913c5412a812275
Publikováno v:
Energies, Vol 16, Iss 13, p 4864 (2023)
Numerical well testing is used mostly in oil/gas, geothermal, and coalbed methane injection/falloff well-testing interpretations while few published studies have been presented on how to adjust the models and numerical experiments parameters. Meanwhi
Externí odkaz:
https://doaj.org/article/36dff700fd894d078838726f2ba5837e
Autor:
Dongmin Ma
Publikováno v:
Frontiers in Psychology, Vol 13 (2022)
Teachers’ professional identity is a feature of an educator that must be planned in an extended, steady, and continuing procedure and typically forms in any particular academic and social setting. As the education profession is largely stressful, i
Externí odkaz:
https://doaj.org/article/cfaa396205fb4001b490d760ad08b005
Publikováno v:
ACS Omega, Vol 6, Iss 1, Pp 702-714 (2020)
Externí odkaz:
https://doaj.org/article/5b9c38f0e3934da68d4f6b3104c93a9d
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
Continental shale is investigated for potential shale gas reservoirs in the Tongchuan area, southern Ordos Basin. The kerogen macerals of Upper Triassic Chang 7 Shale are vitrinite 28–43%, exinite 4–7%, and inertinite 52–69%, and Ro is 0.85–0
Externí odkaz:
https://doaj.org/article/1860dc8578e644fb96724f18b8ae7ac2
Publikováno v:
ACS Omega, Vol 5, Iss 43, Pp 28124-28135 (2020)
Externí odkaz:
https://doaj.org/article/c57614e77d274b62843b98f276e18ba7
Publikováno v:
International Journal of Coal Science & Technology, Vol 7, Iss 2, Pp 263-272 (2020)
Abstract The Early Cretaceous is an important coal accumulation period in China. Abundant coal resources were formed in the southeastern margin of Songliao Basin. Sequence stratigraphy and coal accumulation of the Early Cretaceous in the southeastern
Externí odkaz:
https://doaj.org/article/0d634ca82ac0432f84a512c14945e38c