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- 저자 : Wenxing Huang (검색결과 4 건)
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Analysis of key elements of single-layer dome structures against progressive collapse
Qian Zhang,Wenxing Huang,Yixiang Xu,Jianguo Cai,Fang Wang,Jian Feng 국제구조공학회 2022 Steel and Composite Structures, An International J Vol.42 No.2
The analysis of the progressive collapse resistance of structures is a well-known issue among structural engineers. Large-span reticulated dome structures are commonly utilized in large public buildings, necessitating research into their progressive collapse resistance to assure user safety. The most significant part of improving the structural resilience of reticulated domes is to evaluate their key elements. Based on a stiffness-based evaluation approach, this work offers a calculating procedure for element importance coefficient. For both original and damaged structures, evaluations are carried out using the global stiffness matrix and the determinant. The Kiewitt, Schwedler, and Sunflower reticulated domes are investigated to explore the distribution characteristic of element importance coefficients in the single-layer dome structures. Moreover, the influences of the load levels, load distributions, geometric parameters and topological features are also discussed. The results can be regarded as the initial concept design reference for single-layer reticulated domes.
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Yuyuan Yao,Zhenfu Huang,Binbin Zheng,Shun Zhu,Wangyang Lu,Wenxing Chen,Haixiang Chen 한국물리학회 2013 Current Applied Physics Vol.13 No.8
Zinc tetraaminophthalocyanine (Zn-TAPc) modified by cyanuric chloride was immobilized on silk fibers by covalent bond to obtain a supported photocatalyst (Zn-TDTAPc-SF). The photocatalytic degradation of acid orange II based on Zn-TDTAPc-SF/O2 system was investigated under visible light irradiation (λ ≥ 400 nm). The results indicated that Zn-TDTAPc-SF exhibited excellent photocatalytic performance in the presence of O2 under visible light irradiation. In 6 h, more than 93% of acid orange II (AO2) in Zn-TDTAPc-SF/O2 systemwas eliminated at initial pH 5 under visible light irradiation, and Zn-TDTAPc-SF still remained effective in repetitive fives cycles. Furthermore, NaCl played a positive role in the catalytic reaction, different from the negative one observed in homogeneous catalysis, and the reaction can proceed in a more wide pH range from acidic to alkaline. Based on the analysis of FT-IR and Gas Chromatography/Mass Spectrometry (GCeMS), AO2 was mainly converted into some small molecular biodegradable aliphatic carboxylic compounds such as maleic acid, fumaric acid, succinic acid, etc. The photodegradation mechanism for the evolution of AO2 was proposed by Electron Paramagnetic Resonance (EPR) spectra.
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Yu, Suyun,Wang, Siliang,Huang, Shuai,Wang, Wei,Wei, Zhonghong,Ding, Yushi,Wang, Aiyun,Huang, Shile,Chen, Wenxing,Lu, Yin The Korean Society of Ginseng 2020 Journal of Ginseng Research Vol.44 No.4
Background: Radix et Rhizoma Ginseng (thereafter called ginseng) has been used as a medicinal herb for thousands of years to maintain people's physical vitality and is also a non-organ-specific cancer preventive and therapeutic traditional medicine in several epidemiologic and preclinical studies. Owing to few toxic side effects and strong enhancement on body immunity, ginseng has admirable application potential and value in cancer chemoprevention. The study aims at investigating the chemopreventive effects of ginseng on cutaneous carcinoma and the underlying mechanisms. Methods: The mouse skin cancer model was induced by 7,12-dimethylbenz[a]anthracene/12-O-tetradecanoylphorbol-13-acetate. Ultraperformance liquid chromatography/mass spectrometry was used for identifying various ginsenosides, the main active ingredients of ginseng. Comprehensive approaches (including network pharmacology, bioinformatics, and experimental verification) were used to explore the potential targets of ginseng. Results: Ginseng treatment inhibited cutaneous carcinoma in terms of initiation and promotion. The content of Rb1, Rb2, Rc, and Rd ginsenosides was the highest in both mouse blood and skin tissues. Ginseng and its active components well maintained the redox homeostasis and modulated the immune response in the model. Specifically, ginseng treatment inhibited the initiation of skin cancer by enhancing T-cell-mediated immune response through upregulating HSP27 expression and inhibited the promotion of skin cancer by maintaining cellular redox homeostasis through promoting nuclear translocation of Nrf2. Conclusion: According to the study results, ginseng can be potentially used for cutaneous carcinoma as a chemopreventive agent by enhancing cell-mediated immunity and maintaining redox homeostasis with multiple components, targets, and links.
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Suyun Yu,Siliang Wang,Shuai Huang,Wei Wang,Zhonghong Wei,Yushi Ding,Aiyun Wang,Shile Huang,Wenxing Chen,Yin Lu 고려인삼학회 2020 Journal of Ginseng Research Vol.44 No.4
Background: Radix et Rhizoma Ginseng (thereafter called ginseng) has been used as a medicinal herb forthousands of years to maintain people’s physical vitality and is also a noneorgan-specific cancer preventiveand therapeutic traditional medicine in several epidemiologic and preclinical studies. Owing tofew toxic side effects and strong enhancement on body immunity, ginseng has admirable applicationpotential and value in cancer chemoprevention. The study aims at investigating the chemopreventiveeffects of ginseng on cutaneous carcinoma and the underlying mechanisms. Methods: The mouse skin cancer model was induced by 7,12-dimethylbenz[a]anthracene/12-O-tetradecanoylphorbol-13-acetate. Ultraperformance liquid chromatography/mass spectrometry was used foridentifying various ginsenosides, the main active ingredients of ginseng. Comprehensive approaches(including network pharmacology, bioinformatics, and experimental verification) were used to explorethe potential targets of ginseng. Results: Ginseng treatment inhibited cutaneous carcinoma in terms of initiation and promotion. Thecontent of Rb1, Rb2, Rc, and Rd ginsenosides was the highest in both mouse blood and skin tissues. Ginseng and its active components well maintained the redox homeostasis and modulated the immuneresponse in the model. Specifically, ginseng treatment inhibited the initiation of skin cancer byenhancing T-cellemediated immune response through upregulating HSP27 expression and inhibited thepromotion of skin cancer by maintaining cellular redox homeostasis through promoting nuclear translocationof Nrf2. Conclusion: According to the study results, ginseng can be potentially used for cutaneous carcinoma as achemopreventive agent by enhancing cell-mediated immunity and maintaining redox homeostasis withmultiple components, targets, and links.
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