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Composite varistors based on epoxy resin/La<sub>0.8</sub>Sr<sub>0.2</sub>MnO<sub>3</sub>
Yang, Xinsheng,Kim, Hern,Yang, Liqin,Cheng, Cuihua,Zhao, Yong SAGE Publications 2014 Journal of composite materials Vol.48 No.6
<P>Polymer/perovskite manganese oxide (epoxy resin/La<SUB>0.8</SUB>Sr<SUB>0.2</SUB>MnO<SUB>3</SUB>) composites are prepared using bonded method. There is no reaction between La<SUB>0.8</SUB>Sr<SUB>0.2</SUB>MnO<SUB>3</SUB> and the polymer. The nonlinear current–voltage property is significantly affected by the content of polymer. The resistivity and nonlinear coefficient increase with the increase of polymer content. The resistivity of the composites is 5–9 orders of magnitude higher than that of the sintering ceramics. The nonlinear electrical behavior is an intrinsic property. Compared with conventional sintered ceramic varistors, the polymer/manganese oxide composite varistors have greater nonlinear coefficient above 45.</P>
광고 태도가 관광지 태도, 방문 의도 및 구전 의도에 미치는 영향: 중국인을 대상으로 스토리 중심 광고와 정보 중심 광고를 비교하여
ZHU LIYUAN,박진경,ZHAO XINSHENG 관광경영학회 2019 관광경영연구 Vol.93 No.-
The purpose of this study is to compare story-centric advertising and factual information-centric advertising effect in advertising attitude, destination attitude, visiting intention and wold-of-mouth intention to Chinese. The survey was conducted on October 1, 2018. In order to test the hypothesis of this study, the study group of 150 saw story-centric and factual information-centric advertising. To analyze these data, frequency analysis, factor analysis, reliability analysis, correlation analysis, comparative analysis of SEM are performed. The study found that Chinese prefer factual information-centric advertising to story-centric ones. And destination attitudes were found to have a positive effect on visiting intention and wold-of-mouth intention. It is expected to provide meaningful basic data in establishing a tourism advertising strategy to expand overseas tourism demand.
Shuang Liang,Zhiyuan Bao,Bohao Zhao,Tong Zhou,Jiali Li,Ming Liu,Shuaishuai Hu,Naisu Yang,Yang Chen,Xinsheng Wu 한국유전학회 2020 Genes & Genomics Vol.42 No.11
Background Keratin-associated protein (KAP), the structural protein molecule of hair fibers, plays a key role in determiningthe physical properties of hair. Studies of Krtap11-1 have focused only on its localization. Functional studies of Krtap11-1in hair follicle development have so far not been reported. Objective This study aimed to provide evidence for the role of Krtap11-1 in skin and hair development. Methods Full-length cloning and analysis of Krtap11-1 were conducted to ascertain its function. Overexpression vectors andinterference sequences were constructed and transfected into RAB-9 cells. Quantitative real-time polymerase chain reaction(qRT-PCR) was used to investigate the hair follicle developmental stage of Krtap11-1, the expression of different tissues,and the effects on other hair follicle development-related genes. Results The full length of cloned Krtap11-1 was 947 bp. Krtap11-1 was confirmed to be a hydrophilic protein localizedmostly in mitochondria. The greatest mRNA expression was observed in skin. Using a follicle synchronization model, itwas found that Krtap11-1 mRNA expression levels first increased then decreased over the passage of time, principally duringhair follicle catagen and telogen. Following the overexpression of Krtap11-1, mRNA expression levels of the WNT-2,KRT17, BMP-2, and TGF-β-1 genes increased, and LEF-1 decreased (P < 0.05), the converse after the corresponding useof si-RNA interference. Conclusions Krtap11-1 exerts a promoting effect. The results provide novel insight into the relationship between hair follicledevelopment and Krtap11-1 gene expression.
Traffic Forecast Assisted Adaptive VNF Dynamic Scaling
Hang Qiu,Hongbo Tang,Yu Zhao,Wei You,Xinsheng Ji 한국인터넷정보학회 2022 KSII Transactions on Internet and Information Syst Vol.16 No.11
NFV realizes flexible and rapid software deployment and management of network functions in the cloud network, and provides network services in the form of chained virtual network functions (VNFs). However, using VNFs to provide quality guaranteed services is still a challenge because of the inherent difficulty in intelligently scaling VNFs to handle traffic fluctuations. Most existing works scale VNFs with fixed-capacity instances, that is they take instances of the same size and determine a suitable deployment location without considering the cloud network resource distribution. This paper proposes a traffic forecasted assisted proactive VNF scaling approach, and it adopts the instance capacity adaptive to the node resource. We first model the VNF scaling as integer quadratic programming and then propose a proactive adaptive VNF scaling (PAVS) approach. The approach employs an efficient traffic forecasting method based on LSTM to predict the upcoming traffic demands. With the obtained traffic demands, we design a resource-aware new VNF instance deployment algorithm to scale out under-provisioning VNFs and a redundant VNF instance management mechanism to scale in over-provisioning VNFs. Trace-driven simulation demonstrates that our proposed approach can respond to traffic fluctuation in advance and reduce the total cost significantly.
Few-Layered MoS2 Nanostructures for Highly Efficient Visible Light Photocatalysis
Dan Li,Jianwei Li,Caiqin Han,Xinsheng Zhao,Haipeng Chu,Wenyan Lei,Xinjuan Liu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2016 NANO Vol.11 No.10
Few-layered MoS2 nanostructures were successfully synthesized by a simple hydrothermal method without the addition of any catalysts or surfactants. Their morphology, structure and photocatalytic activity were characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, electrochemical impedance spectra and UV-Vis absorption spectroscopy, respectively. These results show that the MoS2 nanostructures synthesized at 180℃ exhibit an optimal visible light photocatalytic activity (99%) in the degradation of Rhodamine B owing to the relatively easier adsorption of pollutants, higher visible light absorption and lower electron–hole pair recombination.
CDK1 promotes the proliferation of melanocytes in Rex rabbits
Dai Yingying,Hu Shuaishuai,Bai Shaocheng,Li Jiali,Yang Naisu,Zhai Pin,Zhao Bohao,Chen Yang,Wu Xinsheng 한국유전학회 2022 Genes & Genomics Vol.44 No.10
Background: The fur color constitutes one of the most important economic characteristics of fur animals and is determined by the content of melanin. A previous study has shown that the cyclin-dependent kinase 1 (CDK1) is a member of the protein kinase family, involved in forming the color of the fur in Rex rabbits. However, its effect on the melanocytes remains unclear. Objective: This study aimed to provide evidence for the role of CDK1 in melanogenesis. Methods: This study measured the expression of CDK1 in Rex rabbit skins of six coat colors using qRT-PCR. The CDK1-mediated regulation of the pigmentation-related genes and cyclin-dependent kinases were analyzed. The melanin content, proliferation, and apoptosis of the melanocytes were analyzed using the NaOH, CCK8, and Annexin V-FITC methods. Results: The CDK1 expression in the skin of the rex rabbits with different coat colors was found to be regular, and the expression level was found to be the highest in the skin of the black rex rabbits (P < 0.05). The overexpression/knockdown of CDK1 was found to significantly increase/decrease the melanin content in the melanocytes (P < 0.01). Besides, CDK1 was found to significantly promote the proliferation of the melanocyte and inhibit apoptosis (P < 0.01). Furthermore, the overexpression of CDK1 was found to significantly affect the expression of the other melanin-related genes like TYR, PMEL, DCT, as well as the mRNA expression of the cyclin-dependent kinases CDK4, CDK6, CDK8, CCNB1. Conclusions: The results indicated that CDK1 can serve as a key gene regulating melanogenesis, melanocyte proliferation, and apoptosis, providing a new theoretical basis for studying the mechanism by which the different colors of the fur evolve in mammals.