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Hong Hong Wang,Zhan Peng Qin,Xiang Liang Wan,Ran Wei,Kai Ming Wu,Devesh Misra 대한금속·재료학회 2017 METALS AND MATERIALS International Vol.23 No.5
Simulated heat-affected zone continuous cooling transformation diagram was developed for advanced fireresistantsteel. Over a wide range of cooling rates, corresponding to t8/5 from 6 s to 150 s, granular bainite was thedominant transformation constituent, while the morphology of less dominant martensite-austenite (M-A) constituentchanged from film-like to block-type constituent; but the hardness remained similar to the average value of 190-205 HV (0.2). The start and finish transformation temperature was high at 700 °C and 500 °C, and is different fromthe conventional high strength low alloy steels. It is believed that the high-content (0.09 wt%) of Nb may promotebainite transformation at relatively high temperatures. Martenistic matrix was not observed at high cooling rateand the film-like M-A constituent and blocky M-A constituent with thin film of retained austenite and lath martensitewere observed on slow cooling. Excellent impact toughness was obtained in the heat-affected zone with15-75 kJ/cm welding heat input.
Cloning of Phospholipase D from Grape Berry and Its Expression under Heat Acclimation
Wan, Si-Bao,Wang, Wei,Wen, Peng-Fei,Chen, Jian-Ye,Kong, Wei-Fu,Pan, Qiu-Hong,Zhan, Ji-Cheng,Tian, Li,Liu, Hong-Tao,Huang, Wei-Dong Korean Society for Biochemistry and Molecular Biol 2007 Journal of biochemistry and molecular biology Vol.40 No.4
To investigate whether phospholipase D (PLD, EC 3.1.4.4) plays a role in adaptive response of post-harvest fruit to environment, a PLD gene was firstly cloned from grape berry (Vitis Vinifera L. cv. Chardonnay) using RT-PCR and 3'- and 5'-RACE. The deduced amino acid sequence (809 residues) showed 84.7% identity with that of PLD from Ricinus communis. The secondary structures of this protein showed the characteristic C2 domain and two active sites of a phospholipid-metabolizing enzyme. The PLD activity and its expression in response to heat acclimation were then assayed. The results indicated PLD was significantly activated at enzyme activity, as well as accumulation of PLD mRNA and synthesis of new PLD protein during the early of heat acclimation, primary suggesting that the grape berry PLD may be involved in the heat response in post-harvest grape berry. This work offers an important basis for further investigating the mechanism of post-harvest fruit adaptation to environmental stresses.
ATAD2 is Highly Expressed in Ovarian Carcinomas and Indicates Poor Prognosis
Wan, Wei-Na,Zhang, Yi-Xia,Wang, Xue-Mei,Liu, Yan-Jun,Zhang, Yu-Qin,Que, Yan-Hong,Zhao, Wen-Jing Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.6
The purpose of this study was to explore the expression of ATAD2 in ovarian tumor tissue as well as its relationship with degree of malignancy. Tumor tissue from 110 cases of ovarian cancer was collected in accordance with the Declaration of Helsinki for evaluation of ATAD2 expression iimmunohistochemistry, quantitative PCR (qPCR) and Western blotting. The correlation between the ATAD2 expression and and the prognosis of ovarian cancer was evaluated by Cox regression model. In addition, HO-8910 and OVCAR-3 cells were transfected with two siRNAs targeting ATAD2. Cell viability was evaluated with MTT assay, and cell migration by transwell migration assay. ATAD2 was shown to be highly expressed in 65.5% (72/110) of ovarian cancer cases, both at transcriptional and protein levels. Moreover, highly expression was positively correlated with degree of malignancy. Knock-down of ATAD2 in HO-8910 and OVCAR-3 cells was found to reduce cell migration. In addition, follow-up visits of the patients demonstrated that the 5-year survival rate was lower in patients with high expression of ATAD2. Our study suggested that ovarian tumor tissue may have highly expressed ATAD2, which is associated with tumor stage, omentum-metastasis, ascites and CA-125. Increased ATAD2 may play important roles in tumor proliferation and migration. ATAD2 could serve in particular as a prognostic marker and a therapeutic target for ovarian cancer.
사향소합원이 (麝香蘇合元) 흰쥐의 방사형 미로 학습과 기억에 미치는 영향
황의완(Wei Wan Whang),김현택(Hyun Taek Kim),김종우(Jong Woo Kim),이홍재(Hong Jae Lee),이조희(Jo Hee Lee) 대한한방신경정신과학회 1998 동의신경정신과학회지 Vol.9 No.2
Purpose: This study was conducted to find out the effects od Sahyangsohapwon on learning and memory of rats. Method: In the experiment, rats were divided two groups. One was control group which was adminstered Sahyangsohapwon and the other was sample group administered placebo. Numbers of each group were 13 rats. 8-arm radial maze task was used in it, and working memory test and retention(reference memory) test were done. Before the beginning of the test, the rats were deprived of water for 24hrs. In the frist test, each of eight arm was baited with water and a rat was permitted to remain on the maze until all eight arms were entered. A working memory error was defined as revisit of any previously entered arm. When a rat made an error not exceeding one time in consecutive 3 days-performance, it was regarded as learning criteria and the test was ended. The reference memory was evaluated with total days which it took rats to pass the learning crtirtia. The second test was performed after 24 hours when the first test was over. When a rat entered 4 arms, the entrance of arm was cut off during 30 seconds. Here the number if errors which was produced during a rat find remaining 4 tracks was regarded as the index of memory. This experiment compared the number of error at the control group with that of the sample group. Result: 1. In the first test, it was shown that the sample group took 7.69±1.11 days and the control group 9.31±1.97 days to pass the learning criteria. There was statistically significant reference mernory development at the sample group. 2. In the second test, the frequency of errors made by the two groups were 0.92±1.32 times for the control group and 1.23±1.59 times for the Sahyangsohapwon group. There was no difference between the groups in frequency of errors. Conclusion: It is suggested that Sahyangsohapwon has effects on the improvement of learning and memory.
Dynamic Cloud Resource Reservation Model Based on Trust
( Jiao-hong Qiang ),( Ding-wan Ning ),( Tian-jun Feng ),( Li-wei Ping ) 한국정보처리학회 2018 Journal of information processing systems Vol.14 No.2
Aiming at the problem of service reliability in resource reservation in cloud computing environments, a model of dynamic cloud resource reservation based on trust is proposed. A domain-specific cloud management architecture is designed in which resources are divided into different management domains according to the types of service for easier management. A dynamic resource reservation mechanism (DRRM) is used to test users’ reservation requests and reserve resources for users. According to user preference, several resources are chosen to be candidate resources by fuzzy cluster analysis. The fuzzy evaluation method and a two-way trust evaluation mechanism are adopted to improve the availability and credibility of the model. An analysis and simulation experiments show that this model can increase the flexibility of resource reservation and improve user satisfaction.
Jian-Wei Zhang,Wen-Bin Zheng,Wan-Lin Cao,Hong-Ying Dong,Wan-Di Li 대한토목학회 2019 KSCE JOURNAL OF CIVIL ENGINEERING Vol.23 No.3
In order to study the restoring force model of low-rise concrete shear wall with single layer of web reinforcement and inclined rebars, a series of specimens were investigated by quasi-static tests. Based on the fitting of experimental data and theoretical analysis, the restoring force model considering four characteristic points (crack point, yield point, peak point and failure point) and degradation of unloading stiffness was established. The hysteretic rule of restoring force model was determined by analyzing characteristic of hysteresis curve for cyclic loading tests. The results show that skeleton curves and hysteresis curves calculated by the restoring force model are in good agreement with the test curves, which can provide reference for the elastic-plastic dynamic analysis of low-rise concrete shear walls with single layer of web reinforcements and inclined rebars. Shaking table tests of two low-rise concrete shear walls were also conducted to investigate dynamic performance and the seismic damage mechanism of low-rise concrete shear wall with single layer of web reinforcement and inclined rebars. Research on dynamic nonlinear simplified model of SAP2000 shows thatthe proposed restoring force model can be used to analyze the elastic and elastic-plastic dynamic response for the low-rise concrete shear wall with single layer of web reinforcement and inclined rebars.
Dynamic Cloud Resource Reservation Model Based on Trust
Qiang, Jiao-Hong,Ning, Ding-Wan,Feng, Tian-Jun,Ping, Li-Wei Korea Information Processing Society 2018 Journal of information processing systems Vol.14 No.2
Aiming at the problem of service reliability in resource reservation in cloud computing environments, a model of dynamic cloud resource reservation based on trust is proposed. A domain-specific cloud management architecture is designed in which resources are divided into different management domains according to the types of service for easier management. A dynamic resource reservation mechanism (DRRM) is used to test users' reservation requests and reserve resources for users. According to user preference, several resources are chosen to be candidate resources by fuzzy cluster analysis. The fuzzy evaluation method and a two-way trust evaluation mechanism are adopted to improve the availability and credibility of the model. An analysis and simulation experiments show that this model can increase the flexibility of resource reservation and improve user satisfaction.