Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Meichen, Zhang"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-26 (2024)
Abstract The cutting and crushing of coal and rock containing gangue is the result of the coupling effect of multiple factors. The geometric parameters of the working mechanism, the kinematic parameters of the shearer, and the physical and mechanical
Externí odkaz:
https://doaj.org/article/b4ed112ab7dc45ea96f47829681339fc
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 3, Pp 200-216 (2024)
In order to study the vibration characteristics of shearer’s spiral drum under various occurrence conditions，the coal-rock contact model was optimized by taking the MG2×55/250–BWD thin seam shearer as the engineering object, and discrete eleme
Externí odkaz:
https://doaj.org/article/cc59602e1dd942549ad642b685a5380e
Autor:
Quanrun Chen, Yuning Gao, Chen Pan, Dingyi Xu, Kun Cai, Dabo Guan, Qi He, Shantong Li, Wanqi Liu, Bo Meng, Zhi Wang, Yang Wang, Xianchun Xu, Peihao Yang, Meichen Zhang, Yuanqi Zhou
Publikováno v:
Scientific Data, Vol 10, Iss 1, Pp 1-25 (2023)
Abstract Input-Output (IO) data describing supply-demand relationships between buyers and sellers for goods and services within an economy have been used not only in economics but also in scientific, environmental, and interdisciplinary research. How
Externí odkaz:
https://doaj.org/article/86e2663315134aa0bee702c1fd5e4fdc
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-32 (2023)
Abstract The recognition of cutting state of coal-rock is the key technology to realize “unmanned” mining in coal face. In order to realized real-time perception and accurate judgment of coal-rock cutting state information, this paper combined th
Externí odkaz:
https://doaj.org/article/03ad868086bd4b99ac2569909d858817
Autor:
Kunyu Zhang, Yunyi Yin, Man Lv, Xin Zhang, Meichen Zhang, Jia Cui, Ziqiao Guan, Xiaona Liu, Yang Liu, Yanhui Gao, Yanmei Yang
Publikováno v:
Toxics, Vol 12, Iss 1, p 83 (2024)
Limited studies have demonstrated that inorganic arsenic exposure is positively associated with serum vitamin D levels, although the correlation between urinary arsenic species and serum vitamin D has not been investigated in areas of water-borne ars
Externí odkaz:
https://doaj.org/article/dfe912d85a084a9e988d2f4358745687
Publikováno v:
Jixie chuandong, Vol 46, Pp 148-155 (2022)
The cutting part planet carrier is the key part of the shearer，and its time-varying reliability has an important influence on the comprehensive performance of shearer. Rigid-flexible coupling model of shearer with planetary carrier as modal neutral
Externí odkaz:
https://doaj.org/article/305f9893a13e4499a521c77693febac1
Autor:
Meichen Zhang, Haiyan Xu
Publikováno v:
Frontiers in Chemistry, Vol 11 (2023)
Tumor cells and corrupt stromal cells in the tumor microenvironment usually overexpress cancer-specific markers that are absent or barely detectable in normal cells, providing available targets for inhibiting the occurrence and development of cancers
Externí odkaz:
https://doaj.org/article/37b90633b5b14cb3a201dfc9cc907a38
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
Abstract The high-precision 3D simulation model for geomechanics of a complex coal seam is the necessary premise for the research on intelligent shearer and unmanned mining. However, at present, a simulation model for geomechanics of a complex coal s
Externí odkaz:
https://doaj.org/article/66d2ba3c16e64f028c64b0c87eb5339b
Autor:
Shilin Xu, Meichen Zhang, Xiaocui Fang, Jie Meng, Haiyan Xing, Doudou Yan, Jian Liu, Yanlian Yang, Tao Wen, Weiqi Zhang, Jianxiang Wang, Chen Wang, Haiyan Xu
Publikováno v:
Journal of Hematology & Oncology, Vol 14, Iss 1, Pp 1-5 (2021)
Abstract Acute myeloid leukemia (AML) is a common malignant heterogeneous hematopoietic disease with very low average 5-year survival rate due to the refractory feature and high rate of relapse. CD123 is highly expressed on multiple types of AML cell
Externí odkaz:
https://doaj.org/article/0e60652edd234b4d9ef71d32a712ed41
Autor:
Wei Dai, Enchao Qiu, Yun Chen, Xinbo Xing, Wei Xi, Meichen Zhang, Ke Li, Lixia Tian, Zhao Dong, Shengyuan Yu
Publikováno v:
The Journal of Headache and Pain, Vol 22, Iss 1, Pp 1-9 (2021)
Abstract Background Medication-overuse headache (MOH) is a relatively frequently occurring secondary headache caused by overuse of analgesics and/or acute migraine medications. It is believed that MOH is associated with dependence behaviors and subst
Externí odkaz:
https://doaj.org/article/e4eb1063124342c49dfe7234ccf8e20c