Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Kangjian Yang"'
Autor:
Lei Huo, Qiang Li, Linlin Jiang, Huiqin Jiang, Jianping Zhao, Kangjian Yang, Qiangsheng Dong, Yi Shao, Chenglin Chu, Feng Xue, Jing Bai
Publikováno v:
Journal of Materials Science: Materials in Medicine, Vol 35, Iss 1, Pp 1-8 (2024)
Abstract Biodegradable porous Mg scaffolds are a promising approach to bone repair. In this work, 3D-spherical porous Mg–1.5Zn–0.2Ca (wt.%) scaffolds were prepared by vacuum infiltration casting technology, and MgF2 and fluorapatite coatings were
Externí odkaz:
https://doaj.org/article/08dcac0dd4dd4e3db55e6c57790ba3f0
Autor:
Shenghu Liu, Wang Zhao, Shuai Wang, Kangjian Yang, Ping Yang, Hongli Guan, Han Guo, Ruifeng He
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 5, Pp 1-10 (2024)
As the number of wavefront sensor subapertures and deformable mirror actuators in adaptive optics systems increases, the computational time of the direct gradient wavefront control algorithm is excessively long, which is a major factor affecting the
Externí odkaz:
https://doaj.org/article/ae8a64e84508424da8733163426d0ec5
Autor:
Hongli Guan, Wang Zhao, Shuai Wang, Kangjian Yang, Mengmeng Zhao, Shenghu Liu, Han Guo, Ping Yang
Publikováno v:
Frontiers in Physics, Vol 11 (2024)
The limited spatial sampling rates of conventional Shack–Hartmann wavefront sensors (SHWFSs) make them unable to sense higher-order wavefront distortion. In this study, by etching a known phase on each microlens to modulate sub-wavefront, we propos
Externí odkaz:
https://doaj.org/article/d82793ad3a7e45b7ba9538040aca4638
Autor:
Ning Wang, Licheng Zhu, Shuai Ma, Wang Zhao, Xinlan Ge, Zeyu Gao, Kangjian Yang, Shuai Wang, Ping Yang
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 5, Pp 1-10 (2022)
Correction performance of an adaptive optics (AO) system is severely limited by its system latency under high temporal frequency distortions. Wavefront prediction methods has been proven to be an effective way to compensate system delay. A novel wave
Externí odkaz:
https://doaj.org/article/473d20b90c4346adaa4d3a11ec871120
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 1, Pp 1-10 (2022)
The Shack-Hartmann wavefront sensor produces incorrect wavefront measurements when some sub-spots are weak and missing. In this paper, a method is proposed to predict the centroids of these sub-spots for the Shack-Hartmann wavefront sensor based on t
Externí odkaz:
https://doaj.org/article/bf2c3fc2416b41dea89ab6ce38729ef3
Publikováno v:
Sensors, Vol 23, Iss 15, p 6724 (2023)
A tip-tilt mirror (TTM) control method is designed to enhance the control bandwidth and ensure the rejection performance of the adaptive optics (AO) tip-tilt correction system. Optimized with the Smith predictor and filter, linear active disturbance
Externí odkaz:
https://doaj.org/article/9cd5035ca9294366a1bd5fb4ae10e48f
Publikováno v:
Energy Science & Engineering, Vol 8, Iss 1, Pp 203-215 (2020)
Abstract Fluctuations in the groundwater level make the working conditions of concrete pipes below the groundwater level more complex than those of concrete pipes above the groundwater level. This paper describes the application of a three‐dimensio
Externí odkaz:
https://doaj.org/article/8a1eb52163aa4b7abc761de28ecf1789
Autor:
Mengmeng Zhao, Wang Zhao, Kangjian Yang, Shuai Wang, Ping Yang, Fengjiao Zeng, Lingxi Kong, Chao Yang
Publikováno v:
Photonics, Vol 9, Iss 8, p 575 (2022)
Aiming at the problem that it is difficult for the conventional Shack–Hartmann wavefront sensor to achieve high-precision wavefront reconstruction with low spatial sampling, a kind of Shack–Hartmann wavefront sensing technology based on four-quad
Externí odkaz:
https://doaj.org/article/62178b45b5744e24a72b1288476b169e
Autor:
Shiqing Ma, Ping Yang, Boheng Lai, Chunxuan Su, Wang Zhao, Kangjian Yang, Ruiyan Jin, Tao Cheng, Bing Xu
Publikováno v:
Photonics, Vol 8, Iss 5, p 165 (2021)
For a high-power slab solid-state laser, obtaining high output power and high output beam quality are the most important indicators. Adaptive optics systems can significantly improve beam qualities by compensating for the phase distortions of the las
Externí odkaz:
https://doaj.org/article/7b951413ac11410cb4cce21e2aefc319
Publikováno v:
Complexity, Vol 2019 (2019)
Current research was not dedicated to investigate the mechanical behavior of a concrete drainage pipe under multiphysical coupling conditions of overburden pressure, traffic loads, groundwater, and pipe fluids. This study proposes a new numerical sol
Externí odkaz:
https://doaj.org/article/d016108e034b46619ded6cfd67d87267