Zobrazeno 1 - 10
of 229
pro vyhledávání: '"ShiXiang Xu"'
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03805- (2024)
Explosive blasting in tunnel construction may provoke damage to the surrounding rocks, leading to economic and safety concerns. While studies on rock fragmentation mechanisms exist, the innovative mechanism of shaped charge hydrostatic blasting remai
Externí odkaz:
https://doaj.org/article/71549a82cba742c4ba6f08bc0fa5328c
Autor:
Qinggang Lin, Fu Feng, Yi Cai, Xiaowei Lu, Xuanke Zeng, Congying Wang, Shixiang Xu, Jingzhen Li, Xiaocong Yuan
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-7 (2024)
Abstract Traditionally, manipulation of spatiotemporal coupling (STC) of the ultrafast light fields can be actualized in the space-spectrum domain with some 4-f pulse shapers, which suffers usually from some limitations, such as spectral/pixel resolu
Externí odkaz:
https://doaj.org/article/8824324b01b0417cb619479953dbf6de
Autor:
Yi Cai, Mingyu Guo, Congying Wang, Xiaowei Lu, Xuanke Zeng, Yiling Sun, Yuexia Ai, Shixiang Xu, Jingzhen Li
Publikováno v:
Sensors, Vol 24, Iss 14, p 4733 (2024)
This work presents TTFDNet, a transformer-based and transfer learning network for end-to-end depth estimation from single-frame fringe patterns in fringe projection profilometry. TTFDNet features a precise contour and coarse depth (PCCD) pre-processo
Externí odkaz:
https://doaj.org/article/c5cbade2bd674e9ca65d1085084d90d5
Publikováno v:
Heliyon, Vol 10, Iss 4, Pp e26152- (2024)
To solve the problems of untimely and low accuracy of tunnel project collapse risk prediction, this study proposes a method of multi-source information fusion. The method uses the PSO-SVM model to predict the surrounding rock displacement. With the p
Externí odkaz:
https://doaj.org/article/643620062bbe48849c8a2b454e2d8d01
Publikováno v:
Applied Sciences, Vol 14, Iss 12, p 5163 (2024)
In view of the problem that mountain tunnel construction is prone to collapse risk and disaster accidents, this paper proposes a fuzzy comprehensive evaluation method based on CRITIC and D-AHP combined weighting, which can effectively improve the acc
Externí odkaz:
https://doaj.org/article/b6f58d6fab5a494ca61c779bef8c3bdb
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-14 (2023)
Abstract In the process of cyclic blasting during tunnel excavation, the reserved surrounding rock sustains irreparable damage accumulation. For safe tunnel construction, it is imperative to understand the characteristics of blasting dynamic cumulati
Externí odkaz:
https://doaj.org/article/758f68518bef41d0887a325e52108666
Publikováno v:
International Journal of Extreme Manufacturing, Vol 6, Iss 3, p 035505 (2024)
Surface-enhanced Raman scattering (SERS) platform, which enables trace analyte detection, has important application prospects. By structuring/modifying the surface of the SERS substrate, analyte in highly diluted solutions can be concentrated into lo
Externí odkaz:
https://doaj.org/article/79ca78bdbbb046e8a11fc239af5781e8
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-14 (2022)
Abstract On the western plateau of China, ventilation problems brought on by low atmospheric pressure must be overcome. And CO migration after blasting in high-altitude tunnel by inclined shaft has become a significant scientific issue. In this study
Externí odkaz:
https://doaj.org/article/832503981f7b45229926feeac0d771e9
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-17 (2022)
Abstract The tunneling collapse is the main engineering hazard in the construction of the drilling-and-blasting method. The accurate assessment of the tunneling collapse risk has become a key issue in tunnel construction. As for assessing the tunneli
Externí odkaz:
https://doaj.org/article/a4f6ec557644454fa0e62c4612e567a3
Publikováno v:
Mathematical Biosciences and Engineering, Vol 19, Iss 1, Pp 309-330 (2022)
The tunnel collapse is one of the most frequent and harmful geological hazards during the construction of highway rock tunnels. As for reducing the occurrence probability of tunnel collapse, a new dynamic risk assessment methodology for the tunnel co
Externí odkaz:
https://doaj.org/article/5fcaaecfb7594649ab3b065881270da2