Zobrazeno 1 - 10
of 315
pro vyhledávání: '"Junjie He"'
Autor:
Li Fu, Hengfei Yu, Ke Zhang, Hualong Ge, Haijun Wu, Wenyan Zhou, Quan Fu, Kai Xiong, Lihua Ma, Shaoping Lu, Xuan Zhou, Yong Mao, Junjie He
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 5356-5367 (2024)
The present study designed and prepared a novel platinum alloy system Pt-xAu-5Ni (x = 0, 2, 5, wt.%) with high strength and good electrical resistivity. The mechanical, electrical properties and related microstructure during the cold deformation and
Externí odkaz:
https://doaj.org/article/4a00ee1163ec4f6f8462e113a095455c
Autor:
Yuxin Xia, Wenxia Yuan, Shihao Zhang, Qiaomei Wang, Xiaohui Liu, Houqiao Wang, Yamin Wu, Chunhua Yang, Jiayi Xu, Lei Li, Junjie He, Zhiyong Cao, Zejun Wang, Zihua Zhao, Baijuan Wang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract To address the issues of low accuracy and slow response speed in tea disease classification and identification, an improved YOLOv7 lightweight model was proposed in this study. The lightweight MobileNeXt was used as the backbone network to r
Externí odkaz:
https://doaj.org/article/967a195f14fc4a54a83cbbc8dd11f0d5
Autor:
Lingjie Yang, Kai Xiong, Chengchen Jin, Hua Dai, Haijun Wu, Shunmeng Zhang, Junjie He, Yingwu Wang, Yong Mao
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 3886-3899 (2024)
Refractory high-entropy alloys (RHEAs) have remarkable properties like high strength and thermal stability at high temperatures. Their practical application is hindered by ambient brittleness and inferior formability. Titanium (Ti) is recognized as a
Externí odkaz:
https://doaj.org/article/5419b1d02e6748e4a04ca0ea04053fef
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 4, Pp 1284-1295 (2024)
Due to increasing operational security demands, digital and intelligent condition monitoring of nuclear power plants is becoming more significant. However, establishing an accurate and effective anomaly detection model is still challenging. This is m
Externí odkaz:
https://doaj.org/article/a8cc8f8af0b24789a128f5b1cb3b62d3
Autor:
Xuan Zhou, Jie Liu, Shunmeng Zhang, Li Fu, Jun Cheng, Junjie He, Kai Xiong, Xin Li, Shiqiang Lu, Yong Mao, Kelu Wang
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 4236-4247 (2023)
Microstructure evolution and coarsening behavior of precipitated O phase were systematically investigated in this study, and the corresponding microstructures were characterized by scanning electron microscopy and transmission electron microscopy. Th
Externí odkaz:
https://doaj.org/article/d9476a604f3f4b298a060c2b770c3070
Autor:
Junjie He, Shihao Zhang, Chunhua Yang, Houqiao Wang, Jun Gao, Wei Huang, Qiaomei Wang, Xinghua Wang, Wenxia Yuan, Yamin Wu, Lei Li, Jiayi Xu, Zejun Wang, Rukui Zhang, Baijuan Wang
Publikováno v:
Frontiers in Plant Science, Vol 15 (2024)
IntroductionIn order to solve the problem of precise identification and counting of tea pests, this study has proposed a novel tea pest identification method based on improved YOLOv7 network.MethodsThis method used MPDIoU to optimize the original los
Externí odkaz:
https://doaj.org/article/f601dd18b38146008070192fe08c5a38
Autor:
Qinghang Wang, Haowei Zhai, Zhaoyang Jin, Junjie He, Qin Yang, Wenjun Liu, Yulong Li, Daolun Chen
Publikováno v:
Journal of Magnesium and Alloys, Vol 11, Iss 9, Pp 3302-3322 (2023)
The fundamental research on thermo-mechanical conditions provides an experimental basis for high-performance Mg-Al-Ca-Mn alloys. However, there is a lack of systematical investigation for this series alloys on the hot-deformation kinetics and extrusi
Externí odkaz:
https://doaj.org/article/345071c64a7d41d88466ebb5882aa4e3
Autor:
Shunmeng Zhang, Kai Xiong, Ruixia Yang, Hua Dai, Haijun Wu, Junjie He, Yingwu Wang, Li Wu, Yong Mao
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 1584-1595 (2023)
Ag–Cu alloys, as one type of typical eutectic solders, have been widely used in microelectronic packaging. The welding performance of Ag–Cu solders is closely associated with their microstructures. However, the microstructure evolution of Ag–Cu
Externí odkaz:
https://doaj.org/article/d881360dba464bcb9d02ebc76acd10cc
Autor:
Lei Li, Yamin Wu, Houqiao Wang, Junjie He, Qiaomei Wang, Jiayi Xu, Yuxin Xia, Wenxia Yuan, Shuyi Chen, Lin Tao, Xinghua Wang, Baijuan Wang
Publikováno v:
Agriculture, Vol 14, Iss 2, p 296 (2024)
To investigate the variation in flavonoids content in ancient tree sun–dried green tea under abiotic stress environmental conditions, this study determined the flavonoids content in ancient tree sun−dried green tea and analyzed its correlation wi
Externí odkaz:
https://doaj.org/article/7c74153f78a3458986aab958a3133659
Publikováno v:
AIMS Mathematics, Vol 8, Iss 6, Pp 14027-14046 (2023)
In this paper, we study a kind of mosquito population suppression model incorporating the growth stage as well as the sex structure of mosquitoes. For the general non-autonomous case, a threshold $ m^* $ for the number of sexually active sterile mosq
Externí odkaz:
https://doaj.org/article/806d44d6c3a4448fac55506fa0a43354