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- 저자 : Hang Jiao (검색결과 4 건)
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Liqiao Wang,Hang Jiao,Gen Yang,Jing Li,Yun Zhang 전력전자학회 2022 JOURNAL OF POWER ELECTRONICS Vol.22 No.1
The isolated dual active bridge DC/DC converter is widely used in power electronic conversion systems due to its security, scalability, and easily realized soft switching. Meanwhile, interleaved technology is also widely used in high current conversion applications due to its low current ripple. Current sharing characteristics are analyzed in detail in this paper based on the topology characteristics of an interleaved low current ripple isolated DC/DC converter. At the same time, under dynamic conditions, the altering trend of the current deviation ratio and the relationship between the current deviation rate and the phase-shifted angle are revealed by small signal modeling. In addition, a single-zero double-pole compensation control method in the current loop is proposed. Finally, an experimental 670 W prototype is built to verify the correctness of the theoretical analysis and the effectiveness of the proposed method.
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Study on the Wind-induced Interference Effect of a Large-span Roof Structure Building Group
Yong Hao,Tian-jiao Han,Hang-fei Wu,Hua-hai Dong,Yin Zhou,Chun-hui Du,Yun-hui Han 대한토목학회 2024 KSCE Journal of Civil Engineering Vol.28 No.4
The wind-induced interference effects existing during the construction of a building group were studied in the context of the Zhangjiakou Olympic Sports Center project. Based on CFD numerical simulations, 120 and 96 different working conditions during construction of a swimming pool and speed skating hall were simulated and analyzed respectively, and the numerical simulation results were found to be in high agreement with the wind tunnel test results, which verified the accuracy and feasibility of the numerical simulation. By comparing the wind-induced interference effects of the surrounding buildings on the swimming pool and the speed skating hall during different construction periods, it was found that the swimming pool was more affected by the interference of the surrounding buildings than the speed skating hall, and the wall area was more affected by the interference than the roof area. The wind-induced response of the swimming pool structure during different construction periods was analyzed, and it was found that the interference effect under some working conditions had a greater impact on the structural stress, and it was suggested that the wind interference effect brought about by the construction of the building should not be ignored in such projects.
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Mao-lin Li,Han-min Gu,Hong-ya Hang,Yao-li Jiang,Jiao Jiang,Qian-na Gu,Wen-yan Wu,M.-L. Li 대한독성 유전단백체 학회 2015 Molecular & cellular toxicology Vol.11 No.4
Radix ranunculus temate saponins (RRTS), one of the main constituents extracted from the popular traditional Chinese medicine Radix Ranunculi ternati, has been reported to have various biological activities including anti-cancer effect. The aim of this study is to investigate the effect of RRTS on the cell proliferation and apoptosis in human gastric adenocarcinoma SGC-7901 cells. The data showed that exposure to RRTS for 24 h produced cytotoxic effects on SGC- 7901 cells in a dose-dependent manner (with an IC50 value of 21.22±2.76 μg/mL), which was accompanied by apoptosis induction (from 2.18±0.89% (control) to 63.72±13.16% (100 μg/mL)). Both the extrinsic or death receptor pathway and the intrinsic or mitochondrial pathway were involved in RRTS-induced apoptosis in SGC-7901 cells. Furthermore, apoptotic signaling induced by RRTS was amplified by cross-link between the two pathways via the signal-integrating protein Bid. In conclusion, our findings contribute to better understanding the molecular mechanism of RRTS’ effect on gastric cancer cells and form the basis of the therapeutic development of RRTS in treating gastric cancer in the future.
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Su Liu,Xiao-Xiao Shi,Qing-Zi Zhu,Wen-Juan Jiao,Zi-Jie Zhu,Hang Yu,Gui-YaoWang,Zengrong Zhu 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.1
Insect chemosensory proteins (CSPs) are small, water-soluble proteins which can bind and transport hydrophobic odorants through sensillum lymph to activate odorant receptors, thus play important roles in the olfactory recognition. In the present study, by searching the transcriptome data sets, a total of 22 candidate CSP genes were identified from Cnaphalocrocis medinalis, a serious lepidopteran rice pest in Asia. CSP proteins encoded by these genes showed typical characteristics: an N-terminal signal peptide, four conserved cysteine residues and the pattern of cysteine spacing. The expression profiles of these putative CSP genes were investigated using real-time quantitative PCR. The results showed that five genes (CmedCSP4, CmedCSP8, CmedCSP11, CmedCSP18 and CmedCSP21) were expressed primarily in antennae, suggesting their involvement in olfactory processes; whilst other genes are mainly expressed in non-olfactory tissues, such as abdomen and legs, indicating a broader physiological function for these CSPs. The findings will lead to a better understanding of the molecular mechanisms of chemoreception in C. medinalis.
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