Zobrazeno 1 - 10
of 777
pro vyhledávání: '"Li Yongzhen"'
Autor:
Shan Renliang, Tong Xiao, Dai Weilin, Wang Zhaorui, Liu Song, Li Yongzhen, Liu Dong, Chen Mingyuan
Publikováno v:
矿业科学学报, Vol 8, Iss 1, Pp 39-49 (2023)
With the increase of coal mining depth, the stress environment of the surrounding rock of the roadway deteriorates, therefore it becomes a prominent problem for the large deformation of the surrounding rock and the breaking of the bolt and cable, whi
Externí odkaz:
https://doaj.org/article/57d1ea76b8cb4b4d838ce0c6e96f642e
Publikováno v:
Leida xuebao, Vol 6, Iss 5, Pp 524-532 (2017)
Terrain classification is an important application for understanding and interpreting Polarimetric Synthetic Aperture Radar (PolSAR) images. One common PolSAR terrain classification uses roll-invariant feature parameters such as H/A/a/SPAN. However,
Externí odkaz:
https://doaj.org/article/4409f47557f44c8dbc60e35807e0b8b8
Publikováno v:
Leida xuebao, Vol 6, Iss 5, Pp 442-455 (2017)
Backscattering of radar targets is sensitive to the relative geometry between target orientations and the radar line of sight. This scattering diversity makes imaging radar represented by polarimetric Synthetic Aperture Radar (SAR) information proces
Externí odkaz:
https://doaj.org/article/463e71623fc8445cbcad086854bbb720
Publikováno v:
Leida xuebao, Vol 6, Iss 4, Pp 340-348 (2017)
To obtain an accurate polarization scattering matrix, simultaneous full polarization radar systems must transmit two signals. The performance of orthogonal polyphase codes designed by the traditional method is limited by the code length and is sensit
Externí odkaz:
https://doaj.org/article/8456a3e27e8544658328ce20361efec5
Publikováno v:
Leida xuebao, Vol 5, Iss 6, Pp 666-672 (2016)
This paper focuses on the countermeasures of airborne towed radar active decoy. Moreover, a detection and suppression scheme of Towed Radar Active Decoy (TRAD) using polarization information is proposed. A full-polarization radar echo model with the
Externí odkaz:
https://doaj.org/article/6b2c9ae5dcc54a82a500614a4bc9488e
Publikováno v:
E3S Web of Conferences, Vol 198, p 01044 (2020)
In order to simplify the demulsification speed test of emulsified asphalt, rapid-breaking, medium-breaking and slow-breaking emulsified asphalt as well as different aggregates were selected for the demulsification speed test. The specific surface are
Externí odkaz:
https://doaj.org/article/82ebe136c04c4ce3bbff68c5de686762
Publikováno v:
E3S Web of Conferences, Vol 198, p 01046 (2020)
The relationship among asphalt, mortar and mixture performance was analyzed by grey correlation method by means of asphalt rheological test and hot mix freeze-thaw split test in this paper. The results show that the rheological properties of asphalt
Externí odkaz:
https://doaj.org/article/97ee874547fe4f40ac9300062fd9db6e
Autor:
Liu, Yatao, Li, Yongzhen, Li, Chen, Asuna, Wang, Zhenbei, Li, Fan, Qi, Fei, Xu, Ronghua, Siedlecka, Ewa Maria, Kumirska, Jolanta
Publikováno v:
In Chemical Engineering Journal 1 September 2024 495
Autor:
Li, Xiangmeng1 (AUTHOR) s202302017@st.nuc.edu.cn, Li, Yongzhen1 (AUTHOR), Wei, Huifen1 (AUTHOR), Wang, Chaohui1 (AUTHOR), Liu, Bo1 (AUTHOR)
Publikováno v:
Sensors (14248220). Jun2024, Vol. 24 Issue 11, p3602. 20p.
Autor:
Lu, Yujian, Yang, Xiao, Xiao, Pan, E, Lei, Wang, Chaoyuan, Yu, Jing, Liang, Chao, Fang, Zhiwei, Li, Yongzhen
Publikováno v:
In Atmospheric Environment: X December 2024 24