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Fu‑an Hua,Hong‑wu Song,Tao Sun,Jian‑ping Li 대한금속·재료학회 2020 METALS AND MATERIALS International Vol.26 No.3
A model based on inter-diffusion theory was established to predict growth kinetics of the intermetallic compounds (IMCs)formed in roll bonded Al/Cu sheets during annealing process. The model can give good prediction of both IMC layers growthkinetics and element concentration distribution at the interface of roll bonded Cu/Al sheets with different thickness underdifferent annealing conditions with certain roll reduction range. It is revealed that the calculated results of the proposedmodel are depended on the inter-diffusion coefficient of each components, which could be related to the interface bondingstate, i.e., bonding methods or rolling reductions for roll bonding. And there was big difference in inter-diffusion coefficientof Al and Cu matrix under different bonding state, while the inter-diffusion coefficient of IMCs changed slightly.
Guo-Hua Feng,Fu-Sheng Wang,Ji-Yuan Zhang,Qing-Lei Zeng,Lei Jin,Junliang Fu,Bin Yang,Ying Sun,Tianjun Jiang,Xiangsheng Xu,Zheng Zhang,Jinhong Yuan,Liyuan Wu 한국분자세포생물학회 2013 Molecules and cells Vol.36 No.4
Interleukin-21 (IL-21)+CD4+ T cells are involved in the immune response against hepatitis B virus (HBV) by secreting IL-21. However, the role of IL-21+CD4+ T cells in the immune response against chronic hepatitis C (CHC) virus infection is poorly understood. This study aimed to investigate the role of IL-21+CD4+ T cells in CHC patients and the potential mechanisms. The study subjects in-cluded nineteen CHC patients who were grouped by viral load (low, < 106 RNA copies/ml, n = 8; high, > 106 RNA copies/ml, n = 11). The peripheral frequency of HCV-specific IL-21+CD4+ T cells was higher in the low viral load group and was negatively correlated with the serum HCV RNA viral load in all CHC patients. Meanwhile, IL-21+ cells accumulated in the liver in the low viral load group. In vitro, IL-21 treatment increased the expression of proliferation markers and cytolytic molecules on HCV-specific CD8+ T cells. In summary, these findings suggest that HCV-specific IL-21+CD4+ T cells might contribute to HCV control by rescuing HCV-specific CD8+ T cells in CHC patients.
Analysis of genetic diversity of Ganoderma strains based on rDNA ITS sequencing
Fu Lizhong,Zhang Hongyu,Wu Xueqian,Li Haibo,Wei Hailong,Wu Qingqi,Wang Li’an 한국버섯학회 2010 한국버섯학회지 Vol.8 No.4
The genetic diversity of 16 Ganoderma strains was investigated by rDNA-ITS sequencing. Alignment analysis showed that whole length of internal transcribed spacer(ITS1+ITS2) was 500bp and with 139 variation sites (accounting for 23.3%, ITS1 was 66 and ITS2 was 73), 337 conserved sites (accounting for 72.2%), 59 informative sites (accounting for 9.88%), 86 conversion sites (G-A, C-T), 13 transversion site(C-G, T-A). The ratio of transition and transversion in ITS1 was higher than that in ITS2, and the variable sites of ITS2 were more than those of ITS1. The genetic distance among 16 Ganoderma strains is from 0 to 0.121. The genetic distance between G. lipsiense and F-1 was 0, and the genetic distance between Heizhi 02 and Huizhou, Jingda, G. capense was 0.121, 0.117 and 0.120, respectively. The 16 Ganoderma strains were classed into 4 groups. The biggest group is comprised of 12 strains, including Xinzhou, Huizhou, Jingda, 902, F-1, Xianzhi, Meiluo, Taishan, G. applanatum, 05, G. luteomarginatum. The G. atrum and G. sinense were clustered into one group. The G. capense and Zhongzhi was independent group, respectively. These results showed that there were some genetic difference among groups, and there was lower genetic diversity among strains in same groups.
Establishment of hybridization breeding of Ganoderma lucidum by protoplast monokaryogenesis method
Wu Jiaojiao,Fu Lizhong,Wu Xueqian,Xu Xiuhong,Li Haibo,Wu Qingqi,Wei Hailong,Cheng Junwen 한국버섯학회 2010 한국버섯학회지 Vol.8 No.4
Four Ganoderma lucidum strains, Chizhi 05, Jingda, Huizhou and Xinzhou, were screened out as hybrid parent in order to establish G. lucidum cross breeding system that based on protoplast monokaryogenesis method. Monokaryotic strains of each parental strains were obtained and mating type of each monokaryotic strains were determined. One to three monokaryotic strains that have different mating types were mated, and hybrids were identified by clamp connection observation and antagonist response. The results showed that the number of monokaryon came from Chizhi 05, Jingda, Huizhou and Xinzhou was 9, 14, 40 and 38, respectively. Only one mating type was obtained from Jingda, and two mating types were obtained from the other three strains, Chizhi 05, Huizhou and Xinzhou, respectively. Chi-square test showed that the ratio of two mating types of the three strains was 1:1. Fourteen monokaryotic strains of different mating types from 4 parental strains were select as a cross- breeding materia, and 17 hybrids were obtained, which were identified by clamp connection observation and antagonist response. This study proclaimed that the practicality of the hybridization breeding of G. lucidum by protoplast monokaryogenesis method.
Research on the Stackelberg Game Method of Building Micro-grid with Electric Vehicles
Fu Baochuan,Chen Mengkai,Fei Zhaoan,Wu Jianhan,Xu Xiaoshu,Gao Zhen,Wu Zhengtian,Yang Yalong 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.3
A “micro-grid to users” Stackelberg game method with electric vehicles (EVs) is constructed with the aim of addressing the problem of unstable generation of renewable energy. Micro-grids set charging electricity prices and EV discharging electricity prices based on the supply and demand of electrical energy to achieve maximum benefi ts. The user as a follower formulates the electricity consumption and discharge strategy according to the electricity price to achieve the highest electricity satisfaction and the lowest cost. This proves theoretically that only one Stackelberg equilibrium exists in this game. The feasibility of the method is verifi ed through numerical simulation and the advantages of the proposed method are analysed.
Fu Ren,Xueling Wu 보안공학연구지원센터 2014 International Journal of u- and e- Service, Scienc Vol.7 No.5
Since the initial impoundment of the Three Gorges Reservoir in June 2003 and approximately 30 m of reservoir level fluctuation, numerous preexisting landslides have been reactivated. To mitigate disastrous landslides, the Baishuihe landslide in the Three Gorges region was selected as a case study in predicting such displacement using the monitoring dataand a radial basis function-support vector machine (RBF-SVM) model.The landslide displacement was strongly influenced by periodic precipitation, reservoir level and groundwater level fluctuations. Primary landslide influencing factors were used as independent variables to predict the displacement using several kernel function types including sigmoid function, polynomial function, and RBF based on SVM model.Prediction results demonstrated that the RBF-SVM with the optimal parameters c, ε and r of 170, 0.05 and 0.04 can provide the best predictive accuracy, with the maximum and minimum absolute error values of 9.84 and 0.47 mm, respectively.