Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Zhang Jiafan"'
Publikováno v:
Meikuang Anquan, Vol 54, Iss 4, Pp 119-125 (2023)
In order to explore the diffusion law of viscosity time-denatured slurry in a dynamic water environment, taking NF cement-based slurry as the research object, the time-varying test of slurry viscosity was carried out, and the time-varying function of
Externí odkaz:
https://doaj.org/article/fabffb3a193f4e9c8db8b40e7312c786
Temporal image analysis in remote sensing has traditionally centered on change detection, which identifies regions of change between images captured at different times. However, change detection remains limited by its focus on visual-level interpreta
Externí odkaz:
http://arxiv.org/abs/2412.02573
Publikováno v:
Meikuang Anquan, Vol 52, Iss 10, Pp 166-170 (2021)
In order to study the distribution law of the stress field in the rough fractures hiding in coal and rock mass during the grouting process, the two-dimensional rough fracture profile is generated according to the random midpoint displacement method,
Externí odkaz:
https://doaj.org/article/47a740076ef141e7931d9170917a0d2f
Publikováno v:
Meikuang Anquan, Vol 52, Iss 3, Pp 84-89 (2021)
In order to study the dynamic failure characteristics and dynamic damage characteristics of coal rocks, using split Hopkinson pressure bar(SHPB) and stress loading system, impact tests and uniaxial compression experiments were performed on coal rock
Externí odkaz:
https://doaj.org/article/0faf88c0c7ca4cc590951e6ad0e0b406
Publikováno v:
Meikuang Anquan, Vol 51, Iss 8, Pp 23-27 (2020)
In order to study the dynamic mechanical properties of hard coal and rock in northern Shaanxi Province, the basic dynamic and static tests of coal and rock specimens were carried out by using stress loading system and split Hopkinson pressure bar (SH
Externí odkaz:
https://doaj.org/article/09ebf476617c4eacafef8e51454e2241
Autor:
Zhang Jin, Zhang Jiafan
Publikováno v:
Journal of Mathematics, Vol 2021 (2021)
In this paper, we use the analytic methods and the properties of the classical Gauss sums to study the properties of the error term of the fourth power mean of the generalized cubic Gauss sums and give two recurrence formulae for it.
Externí odkaz:
https://doaj.org/article/a1298abd60824423b35268bf01e6795b
Autor:
Zhang, Jiafan1 (AUTHOR), Che, Hubin2 (AUTHOR), Yuan, Chao3 (AUTHOR), Qin, Xiangrui2 (AUTHOR), Chen, Shiguan2 (AUTHOR), Zhang, Huimei1 (AUTHOR) zhanghmktz@xust.edu.cn
Publikováno v:
European Journal of Environmental & Civil Engineering. Aug2024, Vol. 28 Issue 10, p2385-2401. 17p.
Publikováno v:
In Alexandria Engineering Journal October 2024 105:44-55
Publikováno v:
In Energy Conversion and Management 15 August 2024 314
Publikováno v:
In Engineering Failure Analysis July 2024 161