Search

Your search keyword '"Sun, Guoxiang"' showing total 599 results
Start Over Author "Sun, Guoxiang" Publication Year Range Last 10 years
599 results on '"Sun, Guoxiang"'

1. Design and experimentation of a solar-powered robot for cleaning the greenhouse roofs

Author

Ahmed Amin, Xiaochan Wang, Sun Guoxiang, Yinyan Shi, Joseph Ndiithi Ndumiaassan, and Mahmoud Okasha

Subjects
Arduino IDE, Cleaning robots, Greenhouse, Light transmittance, Solar-powered, Technology
Abstract

Greenhouse technology is crucial for combating climate change and enhancing off-season produce and crop yield. Dust build-up on greenhouse roofs remains a significant problem, significantly reducing light transmission and affecting plant growth. Therefore, this study aims to classify dust build-up on greenhouse roofs and to address it by designing, manufacturing, operating, and evaluating a solar-powered cleaning robot system. Water and cement removal agent (CRA) with different mixing ratios were selected to clean the greenhouse roof. The initial findings demonstrate the greenhouse cover's ability to allow light to pass through can differentiate between different levels of dust accumulation. This study reveals that 88 %–93 % of transmittance levels indicate a clean roof, 82 %–87 % reveal minor dust accumulation, 81 %–75 % denote moderate dust accumulation, and below 75 % signify major dust accumulation. This increased the efficiency of the light intensity for minor dust roofs from 39,285 to 41,731 lux ((CRA) 1:3 water), moderate dust roofs from 36,777 to 39,383 lux ((CRA) 1:1 water), and major dust roofs from 30,585 to 35,525 lux (CRA). The results show a substantial improvement in light transmittance from 88 % to 93 % for clean roofs, compared to much lower levels for dust-accumulated roofs.

Published
2024
Full Text
View/download PDF

13. A Location Method of Pole-to-Ground Fault in DC Transmission Lines Based on VSC

Author

Zhang, Ziguang, Guo, Kang, Shen, Nan, Wang, Wenmei, Wang, Xiaonan, Jia, Menghan, Lin, Chao, Li, Dong, Sun, Guoxiang, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Zeng, Pingliang, editor, Zhang, Xiao-Ping, editor, Terzija, Vladimir, editor, Ding, Yi, editor, and Luo, Yunxia, editor

Published
2023
Full Text
View/download PDF

14. Simulation of the Effect of Nanosecond Pulsed Electric Field on Mitochondria

Author

Shang, Tianyi, Sun, Guoxiang, Shen, Saikang, Zhang, Yuchi, Han, Xuan, Ding, Weidong, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Xie, Kaigui, editor, Hu, Jianlin, editor, Yang, Qingxin, editor, and Li, Jian, editor

Published
2023
Full Text
View/download PDF

42. Evaluation of quality consistency of Astragali radix by multi-dimensional profiles combined with chemometric analysis.

Author

Liu, Mingjia, Yang, Ting, Sun, Guoxiang, and Sun, Wanyang

Abstract

Astragali radix (AR) is not only a traditional Chinese medicine, but also a good tonic that is often consumed by people and has good disease prevention and health care effects. Due to the complex composition of AR and the interaction of different chemical components, it presents challenges in quality control. In this study, a gradient elution tower plate theory suitable for gradient elution was firstly established, followed by HPLC analysis combined with quantitative analysis of multi-components by single marker (QAMS) and multi-markers assay by monolinear method (MAML) for accurate content determination of the indicator components (calycosin-7-O-β- D -glucoside and formononetin) in AR. FTIR and DSC are also used to collect the fingerprints of AR and quantize them to obtain the structural information inside the substance. The established fingerprints were evaluated qualitatively and quantitatively using the systematic quantitative fingerprint method (SQFM) and chemometrics, and the characteristic parameters of the three fingerprints were investigated in relation to the macro-quantitative similarity (Pm) using the Pearson correlation analysis. Finally, the coefficient of variation weighted mean method (CVWMM) was used to synthesize the evaluation results and establish the HPLC–FTIR–DSC quality control system, which is more objective and reasonable. The results showed that the calculated results of QAMS and MAML were basically consistent with those of an external standard method. Pm had the function of representing the overall fingerprint information of the samples for quantitative evaluation. SQFM combined with CVWMM successfully differentiated the quality grades of 35 batches of AR samples. The combination of the three analytical methods resulted in the effective improvement of the quality evaluation of AR compared with a single method in terms of accuracy and completeness. This study provides a novel and comprehensive strategy for quality consistency evaluation of AR. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results