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662 results on '"Zhang, Chongyang"'

102. X-ray Detectors Based on Ga2O3 Microwires

Author

Zhang, Chongyang, primary, Dou, Wenjie, additional, Yang, Xun, additional, Zang, Huaping, additional, Chen, Yancheng, additional, Fan, Wei, additional, Wang, Shaoyi, additional, Zhou, Weimin, additional, Chen, Xuexia, additional, and Shan, Chongxin, additional

Published
2023
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107. Median robust nonlinear weighted total least squares estimator of nonlinear EIV models: three algorithms.

Author

Hu, Chuan, Li, Chenghong, Zhang, Chongyang, Zhao, Lidu, Fan, Xiaomeng, Zhou, Yusen, Zhu, Hongzhou, and Chen, Zheng

Subjects
ERRORS-in-variables models, LEAST squares, ESTIMATION theory, NONLINEAR regression, ALGORITHMS
Abstract

To improve robust estimation performance of fully correlated nonlinear error-in-variables model, three median robust estimate methods are discussed on base of Nonlinear Weighted Total Least Squares (NWTLS), namely, median parameter method, median parameter initial value method and median variance method. After the discussion of the median robust estimation theory and the derivation of the calculation formula of the three median robust estimation methods, three iterative algorithms are developed. Through two nonlinear regression examples, four schemes including no artificial outliers, different location of outliers, different degrees of correlation, and different ratios of outliers are adopted, which proves the feasibility and effectiveness of the proposed algorithm. The experimental results show that from the statistical point of view, although the three median methods have different antioutlier effects for different nonlinear models, they are more effective than RNWTLS and NWTLS; the robust estimation results of three median methods are related to the functional model. [ABSTRACT FROM AUTHOR]

Published
2023
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113. Observed Tropospheric High Ozone Associated with Tropopause Fold Event Over Tp in Summer

Author

Liang, Tian, primary, Luo, Jiali, additional, Zhang, Chongyang, additional, Tian, Hongying, additional, Bai, Zhixuan, additional, Bian, Jianchun, additional, Wang, Zhiting, additional, Luo, Fuhai, additional, Zhu, Fangrui, additional, Mao, Lixin, additional, He, Xin, additional, Wang, Shuyu, additional, Zhang, Kequan, additional, and Zhang, Jiankai, additional

Published
2023
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116. Acupuncture for sudden deafness: A scoping review of clinical studies

Author

Bai, Peng, Li, Yang, Zhiwei Feng, Zhang, Chongyang, Xinru Wang, Ziyu Tian, and Xueshi Di

Subjects
Otolaryngology, Integrative Medicine, Alternative and Complementary Medicine, Medical Specialties, Medicine and Health Sciences, hearing loss，sudden, acupuncture
Abstract

Sudden deafness refers to a sudden, unexplained sensorineural hearing loss that occurs within 72 hours. It can cause considerable distress to the sufferer's daily life. At present, the treatment of sudden deafness is mainly glucocorticoid, including systemic glucocorticoid and intravympinal injection. However, the clinical evidence for both is not strong and there are some side effects. Acupuncture and moxibustion is a kind of complementary and alternative therapy with a long history in China, which has certain clinical effect on sudden deafness. This study will comprehensively search, summarize, analyze and comprehensively evaluate the existing evidence of clinical research on acupuncture treatment of sudden deafness, and present the research overview.

Published
2023
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117. X-ray Detectors Based on Ga 2 O 3 Microwires.

Author

Zhang, Chongyang, Dou, Wenjie, Yang, Xun, Zang, Huaping, Chen, Yancheng, Fan, Wei, Wang, Shaoyi, Zhou, Weimin, Chen, Xuexia, and Shan, Chongxin

Subjects
*MASS attenuation coefficients, *DETECTORS, *X-rays, *X-ray detection, *RADIATION damage
Abstract

X-ray detectors have numerous applications in medical imaging, industrial inspection, and crystal structure analysis. Gallium oxide (Ga2O3) shows potential as a material for high-performance X-ray detectors due to its wide bandgap, relatively high mass attenuation coefficient, and resistance to radiation damage. In this study, we present Sn-doped Ga2O3 microwire detectors for solar-blind and X-ray detection. The developed detectors exhibit a switching ratio of 1.66 × 102 under X-ray irradiation and can operate stably from room temperature to 623 K, which is one of the highest reported operating temperatures for Ga2O3 X-ray detectors to date. These findings offer a promising new direction for the design of Ga2O3-based X-ray detectors. [ABSTRACT FROM AUTHOR]

Published
2023
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131. An Improvement to Matrix-Based LDA

Author

Zhang, Chongyang, Yang, Jingyu, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Deng, Hepu, editor, Miao, Duoqian, editor, Lei, Jingsheng, editor, and Wang, Fu Lee, editor

Published
2011
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138. Function of hydroxycinnamoyl transferases for the biosynthesis of phenolamides in rice resistance to Magnaporthe oryzae

Author

Fang, Hong, primary, Zhang, Fan, additional, Zhang, Chongyang, additional, Wang, Dan, additional, Shen, Shuangqian, additional, He, Feng, additional, Tao, Hui, additional, Wang, Ruyi, additional, Wang, Min, additional, Wang, Debao, additional, Liu, Xionglun, additional, Luo, Jie, additional, Wang, Guo-Liang, additional, and Ning, Yuese, additional

Published
2022
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