Zobrazeno 1 - 10
of 298
pro vyhledávání: '"QingLiang Zeng"'
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 11, Pp 74-88 (2024)
Coal is the key energy source in China, and it is of great strategic significance to ensure the safe and efficient mining of coal resources in China. China’s coal resources are mainly mined by shaft mining, the production environment is harsh and t
Externí odkaz:
https://doaj.org/article/b2dcbf2b66f34ae6b40bcaf839c01458
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract The reliability and longevity of the guiding shoe are crucial for the proper functioning of coal mining machines. The heavy wear of the sliding surface under thermal stress coupling is the primary factor influencing the service life of the g
Externí odkaz:
https://doaj.org/article/ec9e0fdeebcc4758947ba12754288b98
Publikováno v:
Alexandria Engineering Journal, Vol 105, Iss , Pp 783-797 (2024)
The disturbance of the coal caving mechanism is the main method to solve the problem of coal falling into an arch during the top coal caving process, and the clearance in the caving mechanism is an important factor affecting its disturbance. To study
Externí odkaz:
https://doaj.org/article/a22e0face3874622a86c14c45508762b
Publikováno v:
ACS Omega, Vol 9, Iss 22, Pp 23451-23461 (2024)
Externí odkaz:
https://doaj.org/article/424f467595b44f5f8a68de16f224050d
Autor:
He Li, Yuanbo Li, Zhanpeng Zhang, Xuan Wang, Chaoning Cao, Shengqi Cui, Yi Shen, Qingliang Zeng
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 56, Iss , Pp 101788- (2024)
When precision materials or components are moved or transported, traditional contact transport methods inevitably lead to some trouble such as wear, scarification, pollution and stress concentration. To solve these problems, a novel contact-free tran
Externí odkaz:
https://doaj.org/article/08514de1f96d467392d64b3174edb436
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract In view of the problem of poor coupling adaptability and easy rib spalling of coal wall in large mining height comprehensive mining, based on the effective inhibition effect of face guard mechanism on coal wall spalling, the structural chara
Externí odkaz:
https://doaj.org/article/84385b1baefc48f3b7c676ed67ab6b1c
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-21 (2023)
Abstract Aiming at the problem of easy misdetection and omission of small targets of long-distance vehicles in detecting vehicles in traffic scenes, an improved YOLOX_S detection model is proposed. Firstly, the redundant part of the original YOLOX_S
Externí odkaz:
https://doaj.org/article/05ec4ee8fa754c0d86ce21c321e838cd
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-17 (2023)
Abstract The combined rock breaking method with the saw blade and conical pick is proposed to improve the rock breaking efficiency. The numerical simulation of combined rock breaking with the saw blade and conical pick is established to investigate t
Externí odkaz:
https://doaj.org/article/49c223cccd5e492580f51a6d037ea8d2
Publikováno v:
Energy Science & Engineering, Vol 11, Iss 11, Pp 4077-4091 (2023)
Abstract The problems of insufficient recognition accuracy, poor real‐time performance and lack of consideration of actual working conditions in the process of intelligent construction of coal mines make this technology still in the research stage
Externí odkaz:
https://doaj.org/article/fb4c8584f7d4403b8b1ffef64015f7a3
Publikováno v:
Machines, Vol 12, Iss 10, p 676 (2024)
The hydraulic support face guard system is essential for supporting the exposed coal wall at the working face. However, the hydraulic support face guard system approaching the coal wall may cause impact disturbances, reducing the load-bearing capacit
Externí odkaz:
https://doaj.org/article/b97a9a961301422d9f4d90dd8715a47b