Zobrazeno 1 - 10
of 1 484
pro vyhledávání: '"XU Xuefeng"'
Publikováno v:
Haiyang Kaifa yu guanli, Vol 41, Iss 6, Pp 151-161 (2024)
Aiming at the problems of siltation promotion and siltation return in the beach area of Hangzhou Bay, a numerical calculation model of hydrodynamic and scour and siltation in the south bank of Ningbo Bay was constructed, and the reliability of the sh
Externí odkaz:
https://doaj.org/article/055529fe1078423c887ad3ed249d128a
Publikováno v:
Cailiao gongcheng, Vol 51, Iss 12, Pp 134-142 (2023)
In order to improve the mechanical and tribological properties of polytetrafluoroethylene (PTFE), carbon nanotubes (CNTs) nano-capsules loaded with the isobutene sulfide (T321) in the internal cavity (CNTs@T321) were proposed as the reinforcing phase
Externí odkaz:
https://doaj.org/article/f58dd456d23e467eace5144fc303fa79
Autor:
Xu, Xuefeng
This paper is devoted to the convergence theory of two-grid methods for symmetric positive semidefinite linear systems, with particular focus on the singular case. In the case where the Moore--Penrose inverse of coarse-grid matrix is used as a coarse
Externí odkaz:
http://arxiv.org/abs/2409.09442
When XPS analyses are performed on insulator surfaces, shift and deformation of spectra peaks typically take place due to the surface charging. To achieve reliable XPS measurements, neutralization techniques have been widely adopted but their effecti
Externí odkaz:
http://arxiv.org/abs/2409.00663
Autor:
Xu Xuefeng, Ali Tayyeb, Wang Lin, Cheng Huanwu, Zhou Zhe, Ning Zixuan, Liu Xiaopin, Liu Anjin, Zhang Binbin, Cheng Xingwang
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 5, Pp 11509-11516 (2020)
This research reports detailed investigations on the dynamic compression properties and the deformation mechanism in Ti6321 titanium alloy subjected to high strain rate loading by using the split Hopkinson pressure bar (SHPB). Microstructures of defo
Externí odkaz:
https://doaj.org/article/175de9bbafb9472bbb7348e4c8e9651c
Publikováno v:
Zhongguo Jianchuan Yanjiu, Vol 14, Iss 3, Pp 172-178 (2019)
[Objectives]This study aims to solve the problem of the track control for submarine in the horizontal plane.[Methods]Firstly,the paper builds dynamics and kinematics model of the submarine in the horizontal plane,then builds the error model of the tr
Externí odkaz:
https://doaj.org/article/2faf215512ce41cc8f2c55a33fecadc7
Publikováno v:
Nanophotonics, Vol 7, Iss 5, Pp 873-881 (2018)
In this paper, we employ the nonlinear optical microscopies of coherent anti-Stokes Raman scattering spectroscopy, two-photon excitation fluorescence, and second harmonic generation to characterize the properties of two-dimensional (2D) materials. Wi
Externí odkaz:
https://doaj.org/article/31d2259fe90449d588d5f7510cff2390
Autor:
Wu, Binbing, Fan, Zhengfeng, Ye, Difa, Ye, Tao, Gao, Congzhang, Yu, Chengxin, Xu, Xuefeng, Zhang, Cunbo, Liu, Jie
We investigate the fusion cross sections of light nuclei in the presence of linearly polarized intense laser fields. By combining the Coulomb-Volkov solutions with the complex spherical square-well nuclear potential, we derive an explicit formulation
Externí odkaz:
http://arxiv.org/abs/2312.16777
Autor:
Chaohua Sun, Wu Ting, Zhai Longmei, Li Duyue, Zhang Xinzhong, Xu Xuefeng, Ma Huiqin, Wang Yi, Han Zhenhai
Publikováno v:
Frontiers in Plant Science, Vol 7 (2016)
AbstractReactive oxygen species (ROS) are important signaling molecules in plants that contribute to stress adaption. This study demonstrated that ROS play a critical role in Fe deficiency-induced signaling at an early stage in Malus xiaojinensis. On
Externí odkaz:
https://doaj.org/article/6f8577a570e946feb8dee52467545a47
Autor:
Xu, Xuefeng
Multigrid is a powerful solver for large-scale linear systems arising from discretized partial differential equations. The convergence theory of multigrid methods for symmetric positive definite problems has been well developed over the past decades,
Externí odkaz:
http://arxiv.org/abs/2204.07918