Zobrazeno 1 - 10
of 15 565
pro vyhledávání: '"seam"'
Autor:
Shaoping Hu, Tianbiao Yu
Publikováno v:
Alexandria Engineering Journal, Vol 105, Iss , Pp 578-587 (2024)
In order to reveal the failure morphology and mine pressure behavior of overlying strata during shallow buried close multi-coal seam mining, this research takes the Shenmu Zhangjiamao mining area as the engineering background, the study of overlying
Externí odkaz:
https://doaj.org/article/f84184a4e5db46fb89cf2974ee931f78
Autor:
Kumar, Abhishek, Manshahia, Manpreet
Publikováno v:
International Journal of Clothing Science and Technology, 2024, Vol. 36, Issue 5, pp. 803-821.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/IJCST-02-2024-0035
Publikováno v:
Cailiao gongcheng, Vol 52, Iss 12, Pp 37-43 (2024)
For Ni3Al-based superalloy IC10 turbine blades, some defects, such as cracks and ablations, would appear after long-term service. To shorten the overhaul period, the turbine blades can be repaired using the brazing technology. In this study
Externí odkaz:
https://doaj.org/article/09ec3c04accf4c60af29d680dc7fd2c2
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 12, Pp 5602-5616 (2024)
ABSTRACT During cross‐fault mining, the stress concentration in the surrounding rock of thick coal seam gob‐side entry was prone to dynamic disasters. Based on the in‐site geological conditions of the No. 6305 coal face of the Xinjulong coal mi
Externí odkaz:
https://doaj.org/article/ae3d33fb954e43fda6f242127c817005
Publikováno v:
Meikuang Anquan, Vol 55, Iss 12, Pp 63-71 (2024)
The effects of different geological parameters, construction parameters, fracturing sequence and other factors on the propagation patterns of multiple cracks and stress interference between cracks in indirect fracturing were analyzed by the extended
Externí odkaz:
https://doaj.org/article/21c34c2f3b02482d831d9038ca335534
Publikováno v:
Meikuang Anquan, Vol 55, Iss 12, Pp 48-56 (2024)
The high-intensity mining in the western mining area has led to severe damage to the overlying rock structure and surface of the working face, resulting in the deterioration of the surface ecological environment. Taking Daliuta Mine as the engineerin
Externí odkaz:
https://doaj.org/article/7cf7ed0749f44cbcade5114658cd78a7
Publikováno v:
AUTEX Research Journal, Vol 24, Iss 1, Pp 805-810 (2024)
The mechanical properties of seaming stitch have been frequently reported. However, the frictional characteristics of seaming stitch have long been ignored. In this article, to reveal the influence of sewing process on the fabric’s friction, we mea
Externí odkaz:
https://doaj.org/article/63073de349cb4108b6b8a0e489ad5418
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract Effective coalbed methane extraction from soft coal seams is essential for mine safety and energy supply. To enhance the extraction efficiency of coal mine methane (CMM) and reduce the risk of gas outbursts in coal mining areas, we developed
Externí odkaz:
https://doaj.org/article/b5bb57392389498fa42b186c069634d1
Autor:
Chuanwei ZHANG, Zhengwei HE, Zhengxiong LU, Linyue LI, Lingxiao GONG, Gangqiang ZHANG, Qiaona PAN
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 11, Pp 103-116 (2024)
Coal rock recognition is one of the core technologies to realize intelligent mining in the integrated mining face of extremely thin coal seam. Aiming at the special situation that the coal-rock boundary is naturally exposed during the mining of extre
Externí odkaz:
https://doaj.org/article/fb0c599493f548658d71acbccbc23388