Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Haijing Zheng"'
Autor:
Houpeng Sun, Yingchun Li, Huichao Guo, Chenglong Luan, Laixian Zhang, Haijing Zheng, Youchen Fan
Publikováno v:
Micromachines, Vol 15, Iss 8, p 1023 (2024)
A method for enhancing the resolution of 3D imaging reconstruction by employing the polarization modulation of electro-optical crystals is proposed. This technique utilizes two polarizers oriented perpendicular to each other along with an electro-opt
Externí odkaz:
https://doaj.org/article/3563135d161c452883b41ca18943d2a8
Autor:
Houpeng Sun, Yingchun Li, Huichao Guo, Chenglong Luan, Laixian Zhang, Haijing Zheng, Youchen Fan
Publikováno v:
Sensors, Vol 24, Iss 15, p 4972 (2024)
LiDAR offers a wide range of uses in autonomous driving, remote sensing, urban planning, and other areas. The laser 3D point cloud acquired by LiDAR typically encounters issues during registration, including laser speckle noise, Gaussian noise, data
Externí odkaz:
https://doaj.org/article/74accdd3a25549ababa9cdbc2cf5aa65
Publikováno v:
Agriculture, Vol 14, Iss 7, p 1007 (2024)
This study applies data envelopment analysis (DEA) to gauge technical efficiency and allocative efficiency in China’s beef cattle-fattening industry using survey data. The Tobit model considers the salient determinants that drive these efficiencies
Externí odkaz:
https://doaj.org/article/a6e2f338c3f04c2190f31fa670232011
Autor:
Chenglong Luan, Yingchun Li, Huichao Guo, Houpeng Sun, Laixian Zhang, Haijing Zheng, Xiaoyu Zhang
Publikováno v:
Photonics, Vol 10, Iss 10, p 1119 (2023)
In order to analyze the performance of a light detection and ranging system based on polarization modulation, it is necessary to theoretically analyze and model the polarization scattering characteristics of common target materials. In this paper, th
Externí odkaz:
https://doaj.org/article/c76678ca69aa4bd9bcd1bc004b68ad07
Publikováno v:
Agriculture, Vol 12, Iss 10, p 1604 (2022)
Beef calf production is a source of sustainable development for the beef cattle industry. However, no comparative studies have reported on the technical efficiency of different beef calf production systems and their influencing factors. Based on data
Externí odkaz:
https://doaj.org/article/ed1f455e910e4fa6891a75a670b976c0
Autor:
Haijing Zheng, Huayan Sun, Huaili Zhang, Yingchun Li, Huichao Guo, Laixian Zhang, Rong Li, Qiang Yin
Publikováno v:
Sensors, Vol 22, Iss 10, p 3725 (2022)
Aiming at the application of laser active imaging detection technology, this paper studied the beam homogenization system of a semiconductor laser based on a homogenizing pipe. Firstly, the principle of the homogenizing pipe was introduced. Secondly,
Externí odkaz:
https://doaj.org/article/be49d1091c27461a82fdb4f0a3637987
Publikováno v:
Sensors, Vol 18, Iss 2, p 428 (2018)
This study investigates multispectral characteristics of an unmanned aerial vehicle (UAV) at different observation angles by experiment. The UAV and its engine are tested on the ground in the cruise state. Spectral radiation intensities at different
Externí odkaz:
https://doaj.org/article/93f7cbfeef5548cebfc9bfec928d5091
Publikováno v:
Environment and Social Psychology. 6
Objective: To explore the demographic characteristics and psychological factors of patients with opioid addiction. Methods: A random number method was used to select 200 opioid-addicted patients admitted to the 7th People’s Hospital of Zhengzhou fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8de479fe85e72ac766001b086d7ac6bc
https://doi.org/10.18063/esp.v6.i1.1397
https://doi.org/10.18063/esp.v6.i1.1397
Publikováno v:
Pakistan Journal of Zoology. 54
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d57b56e9fac956f50fc5ee7c0d897c0
https://doi.org/10.17582/journal.pjz/20201015081030
https://doi.org/10.17582/journal.pjz/20201015081030
Publikováno v:
Applied Optics. 61:8982
In order to achieve wide field-of-view, high-resolution LIDAR, a gating imaging structure combining an electro-optic crystal and an electron multiplication CCD is constructed. According to the index ellipsoid theory, a 3D ray tracing model is establi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83fc25efa3ab1654148b11e48f6f5f81
https://doi.org/10.1364/ao.470353
https://doi.org/10.1364/ao.470353