Zobrazeno 1 - 10
of 3 559
pro vyhledávání: '"Zhang Zhimin"'
Publikováno v:
Chengshi guidao jiaotong yanjiu, Vol 27, Iss 10, Pp 39-44 (2024)
Objective As the sand layer located at the launching end of the slurry shield section is connected with seawater during the tunnel construction of Xiamen Metro Line 3, accidents like water and mud gushing, ground collapse may occur when the shield st
Externí odkaz:
https://doaj.org/article/112e9ca65347456b8a7b1fab604d080c
Autor:
ZHANG Zhimin, KANG Tianhe
Publikováno v:
Meikuang Anquan, Vol 52, Iss 12, Pp 54-59 (2021)
In order to clarify the influence of dynamic pressure roadway two sides stiffness softening on roof deformation, the geology and mining conditions of 3405 haulage roadway in Dayang Coal Mine are taken as the engineering background. Based on elastic f
Externí odkaz:
https://doaj.org/article/f6836f2504144f5ebe97806c375b4e5c
Autor:
Wang, Min, Zhang, Zhimin
The Fredholm-Hammerstein integral equations (FHIEs) with weakly singular kernels exhibit multi-point singularity at the endpoints or boundaries. The dense discretized matrices result in high computational complexity when employing numerical methods.
Externí odkaz:
http://arxiv.org/abs/2410.22759
Monge-Amp\`{e}re equation is a prototype second-order fully nonlinear partial differential equation. In this paper, we propose a new idea to design and analyze the $C^0$ interior penalty method to approximation the viscosity solution of the Monge-Amp
Externí odkaz:
http://arxiv.org/abs/2409.00434
Autor:
Wu, Meng, Qiu, Jingkai, Yan, Mingyu, Li, Wenming, Zhang, Yang, Zhang, Zhimin, Ye, Xiaochun, Fan, Dongrui
Heterogeneous graph neural networks (HGNNs) are essential for capturing the structure and semantic information in heterogeneous graphs. However, existing GPU-based solutions, such as PyTorch Geometric, suffer from low GPU utilization due to numerous
Externí odkaz:
http://arxiv.org/abs/2408.08490
In this paper, we propose and analyze both conforming and nonconforming virtual element methods (VEMs) for the fully nonlinear second-order elliptic Hamilton-Jacobi-Bellman (HJB) equations with Cordes coefficients. By incorporating stabilization term
Externí odkaz:
http://arxiv.org/abs/2408.07153
CDR (Cross-Domain Recommendation), i.e., leveraging information from multiple domains, is a critical solution to data sparsity problem in recommendation system. The majority of previous research either focused on single-target CDR (STCDR) by utilizin
Externí odkaz:
http://arxiv.org/abs/2407.00909
The key of the text-to-video retrieval (TVR) task lies in learning the unique similarity between each pair of text (consisting of words) and video (consisting of audio and image frames) representations. However, some problems exist in the representat
Externí odkaz:
http://arxiv.org/abs/2407.12798
Publikováno v:
High Temperature Materials and Processes, Vol 39, Iss 1, Pp 457-465 (2020)
The cylindrical samples of TC4 titanium alloy prepared by spark plasma sintering (SPS) were compressed with hot deformation of 70% on the thermosimulation machine of Gleeble-1500. The temperature of the processes ranged from 850°C to 1,050°C, and t
Externí odkaz:
https://doaj.org/article/b0ea8571e5d14ec8a3fa2a1fa13d7932
Publikováno v:
High Temperature Materials and Processes, Vol 39, Iss 1, Pp 328-339 (2020)
The TC4 titanium alloy powder test piece was prepared by spark plasma sintering. The multi-pass hot deformation of the TC4 titanium alloy was tested by using the Gleeble-1500 experiment machine. Measurement of relative density, X-ray diffraction, opt
Externí odkaz:
https://doaj.org/article/82b9325a1fed40fb973be683db7f9993