Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Shizheng Wan"'
Publikováno v:
Frontiers in Neuroscience, Vol 18 (2024)
As an excellent single-stage object detector based on neural networks, YOLOv5 has found extensive applications in the industrial domain; however, it still exhibits certain design limitations. To address these issues, this paper proposes Efficient Sca
Externí odkaz:
https://doaj.org/article/bba4d4bfd4d8401094d6d5c949aad24f
Publikováno v:
International Journal of Aerospace Engineering, Vol 2019 (2019)
For the problem of hypersonic target interception, a novel midcourse guidance method with terminal-angle constraint is proposed. Referring to the air-breathing and the boost-gliding hypersonic targets, flight characteristics and difficulties of inter
Externí odkaz:
https://doaj.org/article/33227982c3254fe1b137eff2ffd350f4
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 37, Iss 3, Pp 457-464 (2019)
The guidance accuracy of an infrared air-to-air missile is affected by various factors such as target maneuver, interference, and the natural environment. The complicated confrontational environment posed by target maneuver and decoy launch is consid
Publikováno v:
Applied Mathematics and Nonlinear Sciences, Vol 9, Iss 1 (2024)
The large reservoirs in the southwestern Alpine Canyon region are characterized by long reservoir banks and complex geological structures. The problem of finding the deformation zone quickly and efficiently is urgent and needs to be resolved. In this
Externí odkaz:
https://doaj.org/article/6d90e72267a647ec90ccec0c18f1ab7c
Publikováno v:
Mathematical Problems in Engineering, Vol 2019 (2019)
Referring to the optimal tracking guidance of aircraft, the conventional time based kinematics model is transformed into a downrange based model by independent variable replacement. The deviations of in-flight altitude and flight path angle are penal
Publikováno v:
International Journal of Aerospace Engineering, Vol 2019 (2019)
For the problem of hypersonic target interception, a novel midcourse guidance method with terminal-angle constraint is proposed. Referring to the air-breathing and the boost-gliding hypersonic targets, flight characteristics and difficulties of inter
Autor:
Xiaolei Chen, Ruijie Deng, Dongdong Su, Xiaochen Ma, Xu Han, Shizheng Wang, Yuqing Xia, Zifu Yang, Ningqiang Gong, Yanwei Jia, Xueyun Gao, Xiaojun Ren
Publikováno v:
Exploration, Vol 3, Iss 5, Pp n/a-n/a (2023)
Abstract Gliomas are histologically and genetically heterogeneous tumors. However, classical histopathological typing often ignores the high heterogeneity of tumors and thus cannot meet the requirements of precise pathological diagnosis. Here, proxim
Externí odkaz:
https://doaj.org/article/5c15e10989c74c2fb1ae92743d2b7d86
Publikováno v:
Optik. 126:4392-4396
Considering missiles mounted with infrared detection system flying at hypersonic speed, infrared radiation (IR) from the target will suffer light deflection and wavefront distortions when passing through the flowfields surrounding irdome, namely aero
Publikováno v:
2018 9th International Conference on Mechanical and Aerospace Engineering (ICMAE).
A new guidance law with terminal angle constraint is presented for the midcourse guidance of anti-hypersonic missiles, thus to realize a near head-on scenario at the start of terminal phase. The proposed differentiator-based outputfeedback sliding mo
Autor:
Xiaodong Zhang, Jun Fan, Yibo Shang, Wen-Zhou Chen, Bo Zhou, Shizheng Wan, Ruonan Ji, Xiaoyun Hu, Zhenyi Jiang, Dekai Zhang, Yanming Lin, Haiyan Zhu, Liang Zhang, Ting Mei, Qian Zhang, Ruizhi Zhang, Shasha Zhu, Enzhou Liu
Publikováno v:
Computational Materials Science. 68:234-237
We calculated the electronic and optical properties of Eu-doped, N-doped, and (Eu,N)-codoped TiO2 using plane-wave pseudopotential method. The calculated results show that there are impurity levels of Eu 4f appearing in the band gap of Eu doping syst