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.

Cooperation between China and ASEAN in Combating Wildlife Trade under the Framework of Regional Legal System

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.

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.

Comparative Study of Exposure Assessment of Dust in Building Materials Enterprises Using ART and Monte Carlo

Jiang Wei,Wu Zonghao,Zhang Mengqi,Zhang Haoguang 한국산업안전보건공단 산업안전보건연구원 2024 Safety and health at work Vol.15 No.1

Background Dust generated during the processing of building materials enterprises can pose a serious health risk. The study aimed to compare and analyze the results of ART and the Monte Carlo model for the dust exposure assessment in building materials enterprises, to derive the application scope of the two models. Methods First, ART and the Monte Carlo model were used to assess the exposure to dust in each of the 15 building materials enterprises. Then, a comparative analysis of the exposure assessment results was conducted. Finally, the model factors were analyzed using correlation analysis and the scope of application of the models was determined. Results The results show that ART is mainly influenced by four factors, namely, localized controls, segregation, dispersion, surface contamination, and fugitive emissions, and applies to scenarios where the workplace information of the building materials enterprises is specific and the average dust concentration is greater than or equal to 1.5 mg/m3. The Monte Carlo model is mainly influenced by the dust concentration in the workplace of building materials enterprises and is suitable for scenarios where the dust concentration in the workplace of the building materials enterprises is relatively uniform and the average dust concentration is less than or equal to 6mg/m3. Conclusion ART is most accurate when workplace information is specific and average dust concentration is > 1.5 mg/m3; whereas, The Monte Carlo model is the best when dust concentration is homogeneous and average dust concentration is < 6 mg/m3. Background Dust generated during the processing of building materials enterprises can pose a serious health risk. The study aimed to compare and analyze the results of ART and the Monte Carlo model for the dust exposure assessment in building materials enterprises, to derive the application scope of the two models. Methods First, ART and the Monte Carlo model were used to assess the exposure to dust in each of the 15 building materials enterprises. Then, a comparative analysis of the exposure assessment results was conducted. Finally, the model factors were analyzed using correlation analysis and the scope of application of the models was determined. Results The results show that ART is mainly influenced by four factors, namely, localized controls, segregation, dispersion, surface contamination, and fugitive emissions, and applies to scenarios where the workplace information of the building materials enterprises is specific and the average dust concentration is greater than or equal to 1.5 mg/m3. The Monte Carlo model is mainly influenced by the dust concentration in the workplace of building materials enterprises and is suitable for scenarios where the dust concentration in the workplace of the building materials enterprises is relatively uniform and the average dust concentration is less than or equal to 6mg/m3. Conclusion ART is most accurate when workplace information is specific and average dust concentration is > 1.5 mg/m3; whereas, The Monte Carlo model is the best when dust concentration is homogeneous and average dust concentration is < 6 mg/m3.

Hyperspectral Determination of Reducing Sugar in Potatoes Based on CARS

Wei Jiang,Junlong Fang,Shuwen Wang,Runtao Wang 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.9

It usually contains a large amount of redundant information to use the hyperspectral information to create a model, which will increase the difficulty of the model analysis. Therefore, it’s so important to select the characteristic wavelength in an effective and quick way. This study is proposed by using the competitive adaptive reweighed sampling (CARS) to select the characteristic wavelength for detecting the reducing sugar content in the potatoes. In that experiment a total of 238 samples are prepared. Among them, 190 samples are selected as the calibration set and 48 samples as the validation set. The performance of CARS is compared with full spectrum and classical variable extraction methods such as Monte Carlo uninformative variable elimination (MC-UVE), genetic algorithm (GA) and moving window partial least squares (MWPLS). Experimental results show that the band screened by algorithm CARS has the best effect, compared to full spectrum modeling, the wavelength of the model reduces from 203 to 33, the model validation set coefficient R2 increases from 0.8464 to 0.8965, and the root mean square error prediction (RMSEP) decreases from 0.0758 to 0.0416. The results demonstrate that it is feasible to detect the reducing sugar content of potatoes by using CARS combined with hyperspectral imaging.

A Dynamic Keyed Block Encryption Algorithm

Jiang, Wei,Kim, Sung-Je,Park, Kyoo-Seok Korea Multimedia Society 2008 멀티미디어학회논문지 Vol.11 No.6

In this paper, we propose a dynamic keyed block encryption algorithm. Most existing encryption algorithms are designed such that the key is not changed. Therefore, they have a disadvantage that plaintext could be easily exposed by differential and linear cryptanalysis. In the proposed algorithm, several key generators are designed, and a key generator is attached to the encryption procedure. After performing the encryption procedure, ciphertext and the initial key generating values are transferred to the receiver's key generator for decryption. Through simulation, the proposed algorithm is verified to satisfy the requirements of real-time processing and proved to have a high strength. It can be applied to practical use.

Down-regulated serum microRNA-101 is associated with aggressive progression and poor prognosis of cervical cancer

Wei Jiang,Jia-Jia Pan,Ying-Hui Deng,Mei-Rong Liang,Li-Hua Yao 대한부인종양학회 2017 Journal of Gynecologic Oncology Vol.28 No.6

Objective: MicroRNAs (miRNAs) play a vital role in pathogenesis and progression of many cancers, including cervical cancer. However, importance of serum level of miR-101 in cervical cancer has rarely been studied. In the present study, clinical significance and prognostic value of serum miR-101 for cervical cancer was investigated. Methods: Association between miR-101 level in cervical cancer tissues and prognosis of patients was analyzed by using data retrieved from The Cancer Genome Atlas (TCGA) database, which was followed with our clinical study in which miR-101 serum level comparison between cervical cancer patients and healthy controls was conducted by real-time quantitative polymerase chain reaction (PCR). Results: TCGA database demonstrated that miR-101 was down-regulated in cervical cancer tissues compared with normal cervical tissues, and univariate Cox regression analysis indicated that decreased miR-101 expression was a highly significant negative risk factor. Similar trend was found in the serum miR-101. Serum level of miR-101 was associated with International Federation of Gynecology and Obstetrics (FIGO) stage (p=0.003), lymph node metastasis (p=0.001), and serum squamous cell carcinoma antigen (SCC-Ag) level >4 (p=0.007). The overall survival time of cervical cancer patients with a higher level of serum miR-101 was significantly longer than that of patients with a lower level of serum miR-101. Moreover, multivariate Cox regression analysis indicated that the down-regulated serum level of miR-101 was an independent predictor for the unfavorable prognosis of cervical cancer. Conclusion: Serum level of miR-101 is closely associated with metastasis and prognosis of cervical cancer; and, hence could be a potential biomarker and prognostic predictor for cervical cancer.

Contactless Power Charger for Light Electric Vehicles Featuring Active Load Matching

Wei Jiang,Song Xu,Nailu Li 전력전자학회 2016 JOURNAL OF POWER ELECTRONICS Vol.16 No.1

Contactless power transfer technology is gaining increasing attention in city transportation applications because of its high mobility and flexibility in charging and its commensurate power level with conductive power transfer method. In this study, an inductively coupled contactless charging system for a 48 V light electric vehicle is proposed. Although this study does not focus on system efficiency, the generic problems in an inductively coupled contactless power transfer system without ferromagnetic structure are discussed. An active load matching method is also proposed to control the power transfer on the receiving side through a load matching converter. Small signal modeling and linear control technology are applied to the load matching converter for port voltage regulation, which effectively controls the power flow into the load. A prototype is built, and experiments are conducted to reveal the intrinsic characteristics of a series–series resonant inductive power charger in terms of frequency, air gap length, power flow control, coil misalignment, and efficiency issues.

Research on Model of Vehicle Logistics Transportation Plan

Jiang Wei,Zhou Baoping,Kang Shunguang,Liu Chan 보안공학연구지원센터 2016 International Journal of Smart Home Vol.10 No.9

The vehicle logistics is a complex branch in the field of logistics. Because of vehicles and vehicle transporters have a variety of specifications, the current logistics company make transportation plan mainly depends on scheduling personnel's experience, in the face of complex transportation tasks, however, are often inefficient, and transportation cost is not ideal. This paper used the E problem dates of the National Mathematical Modeling Contest for Postgraduates in 2014 to study the mathematical model is established to solve the problem of loading method of vehicles and transportation plan. Firstly, 2207 vehicles can be divided into four categories, we used MATLAB to calculation the loading method of vehicles for 10 types of vehicle transporters, then we take vehicle transporter minimum number as optimization objective, with vehicle demand and the proportion of vehicle transporters as the constraint conditions, to establish the integer programming model, and finally we used LINGO programming to calculate the optimal transport plan is: vehicle transporter minimum number is 127.

Synthesis and Characterization of Doxorubicin Loaded pH-Sensitive Magnetic Core–Shell Nanocomposites for Targeted Drug Delivery Applications

Wei Jiang,Juan Wu,Yewen Shen,Renbing Tian,Shuai Zhou 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2016 NANO Vol.11 No.11

In order to improve the effects of medical therapy for cancer, we prepared magnetic nanocomposites (Fe3O4@SiO2–NH–NH2) as doxorubicin (DOX) carriers via two different schemes. Scheme (I): the carriers were synthesized from magnetic silica nanoparticles (Fe3O4@SiO2) via layer by layer modification, scheme (II): the carriers were obtained from amino-modified magnetic silica nanoparticles (Fe3O4@SiO2–NH2) synthesized by one-step, and followed by surface modification. In order to load DOX effectively, the surface of the carriers were further modified to make the surface with a large number of hydrazine bonds which can form a pH-sensitive bond (hydrazone bond) with DOX. The two kinds of carriers both exhibited a size around 80 nm, high stability and superparamagnetic behavior. However, DOX-loaded carriers (Fe3O4@SiO2–DOX (2)) performed relatively poorer performance in terms of drug loading and releasing (the loading efficiency of DOX decreased from 67.33% to 42.15%, while the releasing efficiency of DOX decreased from 66.16% to 62.23% within 72 h at pH 4.0). Water-soluble tetrazolium salts (WST-1) assays in cancer cells (Hela) demonstrated that the Fe3O4@SiO2–DOX presented high anti-tumor activity, while the carriers were nearly nontoxic. Thus, the results suggested that the magnetic nanocomposites synthesized by the two different methods both can be employed to deliver DOX, while the carriers obtained via the first method may perform better and would be applied in the field of cancer therapy in the future.