Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Wenshan Yuan"'
Publikováno v:
Drones, Vol 8, Iss 3, p 91 (2024)
Assessing the health status of old trees is crucial for the effective protection and health management of old trees. In this study, we utilized an unmanned aerial vehicle (UAV) equipped with multispectral cameras to capture images for the rapid asses
Externí odkaz:
https://doaj.org/article/de73e05bcf914ef686b7d04dd21aa2bb
Publikováno v:
Plant science : an international journal of experimental plant biology. 322
Sophora japonica is a leguminous tree species native to China. To explore the nitrogen (N) source preference and its impact on stress tolerance, a hydroponic experiment was designed in which S. japonica seedlings were supplied with sole ammonium (NH
Autor:
Wenshan Yuan, Yongzhi Cheng
Publikováno v:
Applied Physics A. 117:1915-1921
In this paper, we propose and experimentally validate a low-frequency metamaterial absorber (MMA) based on lumped elements with broadband stronger absorptivity in the microwave regime. Compared with the electric resonator structure MMA, the composite
Publikováno v:
Progress In Electromagnetics Research C. 49:141-147
In this paper, an ultrathin asymmetric chiral metamaterial multi-band circular polarizer using combined twisted double-gap split-ring resonators (DGSRRs) is proposed and investigated. Experiment and numerical simulations are in good agreement, indica
Publikováno v:
International Journal of Advancements in Computing Technology. 4:304-310
Publikováno v:
2009 International Conference on E-Learning, E-Business, Enterprise Information Systems, and E-Government.
The industrial symbiosis theory is an effective way to develop circular economy. Based on the theory, the paper analyzed the development status of heavy chemical industry, constructed the circulation development pattern of Handan’s heavy chemical i
Publikováno v:
Progress in Electromagnetics Research C; 2014, Vol. 49, p141-147, 7p