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Jiang Angyu(Angyu Jiang),Zong Wei(Wei Zong),Shi Qianfan(Qianfan Shi) 아시아사회과학학회 2022 Jornal of Asia Social Science Vol.9 No.1
Because of its greater biodiversity, ASEAN has long been a source and transit hub for transnational wildlife trafficking. Although several international and domestic wildlife enforcement mechanisms have been established, the scope and effectiveness of international legal cooperation and policy coordination between China and ASEAN remain limited. Governments have been hampered in their efforts to combat wildlife trafficking by the difficulties of investigation and prosecution in overseas jurisdictions and the maintenance of illicit supply chains by organized crime groups. This paper reviews the main trends of legal and illegal wildlife trade between China and ASEAN, explores the existing legal and policy frameworks of ASEAN countries and China, and discusses the effectiveness of cooperation between China and ASEAN countries by referring to the United Nations Convention against Transnational Organized Crime (UNTOC). Finally, put forward the legal cooperation between China and ASEAN countries in combating transnational illegal wildlife trafficking.
A Study on the Diffusion of Mobile Payment Usage in China : Focusing on the Use Diffusion Model
Wei Wei Jiang,왕다운,최혜경 사단법인 미래융합기술연구학회 2021 아시아태평양융합연구교류논문지 Vol.7 No.9
Mobile payments have become a major payment method in China in a short period of time due to its convenience. This has gradually made the lives of Chinese consumers more mobile and improved their efficiency. In this regard, this study analyzed the current status of mobile payment usage in China based on the use diffusion model targeting 440 Chinese consumers. First, exploratory and confirmatory factor analysis was conducted to find out the influence and determinants of the spread of mobile payment use. As a result, it was classified into environmental creation, technology dependence, and technology anxiety. After that, the structural model was analyzed to verify the path hypothesis. As a result, environment creation and technical anxiety influenced the characteristics of mobile payment usage. And it was found that technology dependence, technology anxiety, and diversity among the characteristics of use had a significant effect on the diffusion outcome. In particular, technology anxiety has been shown to be an important factor that not only increases the spread and satisfaction of consumers, but also increases the intention to accept new technologies that will be introduced in the future. Therefore, research on consumer's technology anxiety is needed in the future, and this is expected to contribute to devising measures to increase consumer acceptance of technology.
Protocols for Privacy-Preserving DBSCAN Clustering
XU Wei-jiang,HUANG Liu-sheng,LUO Yong-long,YAO Yi-fei,JING Wei-wei 보안공학연구지원센터 2007 International Journal of Security and Its Applicat Vol.1 No.1
Cooperative computation is one of the most important fields in computer science. In recent years, the development of networking increases the desirability of cooperative computation. But privacy concerns often prevent different parties from sharing their data. Secure multiparty computation techniques can dispel parties’ doubts about revealing privacy information in this situation. On the other hand, Data mining has been a popular research area for more than a decade. However, in many applications, the data are originally collected at different sites owned by different users. This paper considers the problem of privacy preserving DBSCAN clustering over vertically partitioned data based on some results of SMC. An efficient secure intersection protocol is first proposed. The security and complexity of the protocols are also analyzed. The results show that the protocols preserve the privacy of the data and the time complexity as well as the communication complexity is acceptable.
Wei-jie Zhang,Pingping Jiang,Ping-bo Zhang,Jia-wei Zheng,Haiyang Li 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.12
Manganese(III) 5-(4-carboxyphenyl)-10,15,20-triphenyl porphyrin chloride (Mn(TCPP)Cl) was grafted through amide bond on silica zeolite Y (HY), zeolite beta (Hβ) and hexagonal mesoporous silica (HMS). XRD, ICP-AES, N2 physisorption, SEM, TEM, FTIR and thermal analysis were employed to analyse these novel heterogeneous materials. These silica supported catalysts were shown to be used for epoxidation and good shape selectivity was observed. The effect of support structure on catalytic performance was also discussed. The catalytic activity remained when the catalysts were recycled five times. The energy changes about epoxidation of alkenes by NaIO4 and H2O2 were also computationally calculated to explain the different catalytic efficiency.
Synthesis of ditrimethylolpropane acrylate with low functionality for UV-curable coatings
Wei Jiang,Fan-Long Jin,박수진 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.5
An UV-curable acrylic resin, ditrimethylolpropane acrylale (DTMPA), with low functionality was synthesized by esterification of ditrimethylolpropane and acrylic acid. The influences of the synthetic process, such as catalyst, acid/alcohol ratio, inhibitor, solvent, reaction time, and temperature were discussed in detail. The chemical structure of the DTMPA was characterized by FT-IR, 1H NMR, and 13C NMR spectra. The optimal synthesis conditions of the DTMPA were determined, and the resulting product had a yield of 86.5% and pale color. The results of a UV-curing test indicate that the DTMPA has a higher curing speed than that of trimethylolpropane triacrylate.
Ubiquitin Ligases in Cholesterol Metabolism
Wei Jiang,Bao-Liang Song 대한당뇨병학회 2014 Diabetes and Metabolism Journal Vol.38 No.3
To maintain cholesterol homeostasis, the processes of cholesterol metabolism are regulated at multiple levels including transcription, translation, and enzymatic activity. Recently, the regulation of protein stability of some key players in cholesterol metabolism has been characterized. More and more ubiquitin ligases have been identified including gp78, Hrd1, TRC8, TEB4, Fbw7, and inducible degrader of low density lipoprotein receptor. Their working mechanisms and physiological functions are becoming revealed. Here, we summarize the structure, substrates and function of these ubiquitin ligases. Their potential application in drug discovery is also discussed.
A Scheme to Improve SOS Security against DDoS Attack Using Active Network Technology
( Jiang Wei ),( Choong Seon Hong ) 한국정보처리학회 2004 한국정보처리학회 학술대회논문집 Vol.11 No.2
Secure overlay services (SOS) architecture has been proposed to provide reliable communication between clients and a target under DDoS attacks. The SOS architecture employs a set of overlay nodes arranged in three hierarchical layers that controls access to the target. Although the architecture is novel and works well under simple congestion based attacks, we observe that when the attacker uses same malicious traffic raid the SOS nodes, the SOS system can not responses this kind of repeating action, and wastes the chance to collect the information of attacker. We propose a scheme to improve the secure overlay services (SOS) against the DDoS attack.
Wei Jiang,Guosong Ni,Pingping Zuo,Shijie Qu,Yunmei Li,Hongxian Niu,Wenzhong Shen 한국탄소학회 2019 Carbon Letters Vol.29 No.5
Isotropic pitch-based carbon fiber was successfully prepared from tetrahydrofuran-soluble fraction of coal tar pitch cocarbonization with petrolatum by air-blowing. The effects of reaction temperature and time, amount of petrolatum added on the composition and spinning properties of resultant pitches were investigated. It indicated that petrolatum could effectively improve the softening point, aromaticity, hydrogen content and molecular weight of the resultant pitches by promoting cross-linking and dehydrogenation polymerization reactions at low air-blowing temperature. Moreover, more aliphatic and naphthenic structures had been introduced into resultant pitches as addition of petrolatum and also inhibited the generation of quinoline-insoluble particles. The obtained green fibers were facile to be stabilized and carbonized and the resultant carbon fibers showed fully isotropic and finer, uniform diameter with smooth surface and higher tensile strength of up to 0.92 GPa. It provided a facile chemical modification method for isotropic pitch-based carbon fiber production.