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31 results on '"Shao, Hongjun"'

14. Eurotium cristatumExhibited Anti-Colitis Effects via Modulating Gut Microbiota-Dependent Tryptophan Metabolism

Author

Zhang, Bo, Ren, Daoyuan, Zhao, Aiqing, Shao, Hongjun, Li, Ting, Niu, Pengfei, Zhao, Yan, and Yang, Xingbin

Abstract

Fu-brick tea (FBT) has attracted the attention of researchers because of its unique nutritional value, but it remains unknown whether Eurotium cristatum, the critical fungus from FBT, is responsible for the observed anti-colitis effects of FBT. Herein, the effects of E. cristatumon dextran sulfate sodium (DSS)-induced ulcerative colitis was first discussed. The results illustrated that the oral administration of E. cristatuminhibited DSS-induced colon damage. Microbiota analysis revealed that E. cristatumimproved the intestinal homeostasis of colitis mice, especially increased the proportion of Lactobacillus, followed by an obvious increase in fecal short-chain fatty acids (SCFAs). Besides, E. cristatummarkedly promoted tryptophan metabolism and increased the fecal contents of tryptophan metabolites in colitis mice. Furthermore, E. cristatumdrastically increased the content of colonic IL-22 and the expression of tight-junction proteins. Conclusively, these results suggest that E. cristatumcan resist colon damage and other implications of colitis by regulating the microbiota and enhancing tryptophan metabolism to strengthen intestinal barriers.

Published
2022
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15. Energy Feedback Electronic Load Based on Topology of Three-level Inverter

Author

Yang Chang, Zhai Yang, Shao Hongjun, and Chen Ze

Subjects
Computer science, business.industry, Process (computing), Electrical engineering, Topology (electrical circuits), PWM rectifier, Bridge (interpersonal), Power (physics), Modulation, Harmonic, Inverter, Power quality, Hardware_CONTROLSTRUCTURESANDMICROPROGRAMMING, business
Abstract

three-level inverter has the advantages of high output power quality, low harmonic content and low switching loss. The traditional energy feedback electronic load can be realized by dual PWM rectifier, that is, it is composed of PWM rectifier Bridge and PWM inverter bridge. If a three-level inverter can be applied to the electronic load PWM inverter bridge link, the switching loss can be reduced and the quality of output power can be improved. This thesis introduces the main circuit topology and working principle of the energy feedback load, and proposes an electronic load composed of three-level PWM inverter bridge, and proposes a new modulation process.

Published
2020

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