Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Junjun FENG"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 8, Pp 116-123 (2024)
The digital image correlation (DIC) technology was used to investigate the evolution law of the coal surface strain field under different loading rates and to analyze the influence of loading rate on the evolution of the deformation field, deformatio
Externí odkaz:
https://doaj.org/article/7424f87e8ff24885a984ae3e33cc2ed6
Publikováno v:
Meitan xuebao, Vol 49, Iss 4, Pp 1882-1893 (2024)
Frequent mining disturbance or periodic rupture of far-field roof in coal seam mining will produce multiple vibration loads, which have an important influence on the micro pore-fissure structure and macro mechanical behavior of coal. In order to expl
Externí odkaz:
https://doaj.org/article/9bdac53008894b6087b8ed0813bae594
Autor:
Yingtong Feng, Zhiqiang Ma, Minghong Pan, Liqun Xu, Junjun Feng, Yimeng Zhang, Changjian Shao, Kai Guo, Hongtao Duan, Yujing Zhang, Yuxi Zhang, Jiao Zhang, Di Lu, Xiaoya Ren, Jing Han, Xiaofei Li, Xiaolong Yan
Publikováno v:
Cell Death and Disease, Vol 13, Iss 5, Pp 1-12 (2022)
Abstract Esophageal squamous cell carcinoma (ESCC) is one of the most common cancers worldwide, with high incidence and mortality rates and low survival rates. However, the detailed molecular mechanism of ESCC progression remains unclear. Here, we fi
Externí odkaz:
https://doaj.org/article/78217798fef944009581740051575b1d
Autor:
Huiqi Wang, Hui Zhang, Mangxian Liu, Jianqun Liu, Zhipeng Yan, Changming Zhang, Yapeng Li, Junjun Feng
Publikováno v:
Materials, Vol 16, Iss 12, p 4319 (2023)
In this paper, FeCrCoW alloys with different W contents (0.4, 2.1 and 3.4 at%) are designed and studied in order to overcome the existing shortcomings of resistance materials. These resistance materials have high resistivity and a low temperature coe
Externí odkaz:
https://doaj.org/article/d699049526d74493bc43754bafaf3273
Publikováno v:
International Journal of Mining Science and Technology, Vol 30, Iss 5, Pp 613-621 (2020)
A comprehensive understanding of the failure behavior and mechanism of coal is a prerequisite for dealing with dynamic problems in mining space. In this study, the failure behavior and mechanism of coal under uniaxial dynamic compressive loads were e
Externí odkaz:
https://doaj.org/article/e16b6343e28941caa119a8d0e81dfc5e
Publikováno v:
Materials Research Express, Vol 9, Iss 9, p 096511 (2022)
In order to know the influence of laser power on the steel (27SiMn) used for repairing the column with Inconel 718 powder materials, and to obtain the optimal laser power parameters with the best mechanical properties of cladding layer, the microstru
Externí odkaz:
https://doaj.org/article/0d05f93482fa49d09efbab878a8f94ff
Publikováno v:
International Journal of Mining Science and Technology, Vol 28, Iss 3, Pp 397-406 (2018)
Dynamic disasters in Chinese coal mines pose a significant threat to coal productivity. Thus, a thorough understanding of the deformation and failure processes of coal is necessary. In this study, the energy dissipation rate is proposed as a novel in
Externí odkaz:
https://doaj.org/article/fa251dd0345b45299ac31f9a2f192581
Publikováno v:
Polymers, Vol 8, Iss 3, p 35 (2016)
In this contribution, high ortho novolac resins modified with phenylboronic acid were synthesized. The thermal stability of novolac resins cured with hexamethylenetetramine (HMTA) and chemical states of B and N via a pyrolysis process were studied. F
Externí odkaz:
https://doaj.org/article/d91f44c1b569450f9bf90132f8b5995a
Publikováno v:
International Journal of Geomechanics. 22
Publikováno v:
Rock Mechanics and Rock Engineering. 54:6105-6121
Underground rock is often subjected to the coupled action of acid sulfate, chloride ion corrosion, and external dynamic disturbance: the degree of corrosion and dynamic load can significantly affect the pore structure and mechanical behavior of rock.