A Study on Consumer’s Behavioral Intention and Use Behavior Based on UTAUT Theory: Centered around Mobile Delivery Apps

Yonghui Zhao(Yonghui Zhao),Jia Zhao(Jia Zhao),Xiaolei Wang(Xiaolei Wang) 한국무역연구원 2022 무역연구 Vol.18 No.6

Purpose – The growth of mobile delivery apps is expanding further due to the increase in nonface- to-face consumption due to social distancing in the COVID-19 situation. It is essential to understand what factors are causing this mobile delivery app market to grow significantly. Design/Methodology/Approach – To achieve the purpose of the study, independent variables were selected by searching for prior literature on UTAUT, and a questionnaire was designed according to the situation in Korea. The survey was conducted through Google Online, and statistical analysis of the research model was conducted using SPSS 25.0. Findings – According to the results of this study, the factors that significantly influence the intention to use mobile delivery apps were Performance Expectancy (PE), Effort Expectancy (EE), Social Influence (SI), and Facilitating Conditions (FC). In addition, the result indicated that Behavioral Intention (BI) had a statistically significant effect on Use Behavior (UB). Research Implications – This study will predict the user behavior of mobile delivery apps by dealing with the technical attributes of mobile delivery apps and the influencing factors that consumers recognize. In addition, as a mobile delivery app company, it is expected to play a role in establishing the marketing direction of mobile delivery apps.

Bioremediation of Coastal Saline-Alkali Marshy Soil by the Irrigation with Pulp & Paper Wastewater

LI Jia-liang,LU Zhao-hua,TIAN Jia-yi,WANG Lin,LI Peng-hui,XIAO Zhong-feng 대전대학교 환경문제연구소 2009 환경문제연구소 논문집 Vol.13 No.-

Based on the importance of coastal saline-alkali soil remediation in Yellow River Delta, China, the Cl-、Na+ transferring tendency in soil and the saline-alkali soil eco-remediation effects were researched by measuring soil Cl-、Na+ 、soluble salt、soil respire rate and dry biomass weight of reed, etc. periodically. The results shows: the concentration of irrigated soil Cl-、Na+ and soluble salt were decreased 57.7-70%、45.7-47.1% and 53.2-59.7%, respectively, and soil salt decreasing level were little influenced by the hydraulic load, inundation depth varies in some degree, but it was influenced by dry-wet alternative irrigating mode The concentration of soil total nitrogen、organic mass、microbial respire rate, and the reed biomass above ground were increased averagely to 2.17、1.20、1.46 and 1.34 multiple respectively afterirrigation with wastewater, which have complex remediation effects on the coastal saline-alkali wetland, but there are some differences among the different irrigating crafts.

A Study on the Impact of Perceived Cosmetic Brand App Attributes on Customer Satisfaction and Continuous Usage Intention

Jia Zhao,Phan Thi Thuy Diem 아시아무역학회 2019 Journal of Asia Trade and Business Vol.6 No.1

Purpose - The purpose of this study is to analyze correlation of perceived cosmetics brand apps characteristics and use intentions, mediating role of customer satisfaction, and relationship between customer satisfaction and continuous usage intention. Then provide basic data for development management strategy of beauty industry and enhancement of competitiveness corresponding to smart era. Methods - The questionnaires were surveyed by an online company(EMBRAIN). After data collection, frequency analysis was performed on the general characteristics of questionnaire survey using SPSS 22.0, and data conclusions were derived by verifying reliability and validity of data and hypotheses. Results - First, perceived cosmetic brand app characteristics have a positive effect on customer satisfaction, Second, perceived cosmetic brand app characteristics have a positive effect on continuous usage intention. Third, customer satisfaction was found to have a mediating role in the effect of perceived cosmetic brand app characteristics on continuous usage intention. Conclusion - Consumers buying products from cosmetics brand apps will be more likely to use cosmetics brand apps if they feel comfortable with calculation process, search, booking confirmation and payment methods.

Preparation and Characterization of Surface Modified PPTA Fibers by Ultrasonic-Assisted Hydrogen Peroxide Solutions

Zhao Jia,Chunmei Duan 한국섬유공학회 2019 Fibers and polymers Vol.20 No.11

The simplest peroxide, hydrogen peroxide (H2O2) was used to prepare the surface modified poly(p-phenyleneterephthalaramide) (PPTA) fibers under the assistant of ultrasonic vibration. Fourier transform infrared spectroscopy (FTIR)spectra indicated the increase of the active polar groups on the surface of the fibers. X-ray photoelectron spectroscopy (XPS)analysis confirmed that more carboxyl groups and hydroxyl groups have been obtained after this treatment. Scanning electronmicroscope (SEM) showed that the surface roughness of the fibers has been improved accordingly. The interfacial propertiesof modified PPTA fiber/epoxy composites were investigated by the single fiber pull-out test (SFP). The results showed thatthe interfacial shear strength (IFSS) of PPTA/epoxy composites was remarkably improved by 42.14 % while the breakingstrength was not affected appreciably. The modified fiber presented 26.9 % higher moisture regain compared with theoriginal fiber. It proved to be an efficient method to make the surface modified PPTA fiber for the application of the advancedcomposites at a relatively low cost.

Irregular Bone Defect Repair Using Tissue-Engineered Periosteum in a Rabbit Model

Zhao Lin,Zhao Junli,Yu Jia-Jia,Zhang Cangyu 한국조직공학과 재생의학회 2020 조직공학과 재생의학 Vol.17 No.5

Background: In previous studies, we succeeded in repairing a long bone defect with tissue-engineered periosteum (TEP), fabricated by incorporating rabbit mesenchymal stem cells with small intestinal submucosa. In this study, we investigated the feasibility of allogeneic irregular bone defect repair using TEP. Methods: We performed a subtotal resection of the scapula in 36 rabbits to establish a large irregular bone defect model. The rabbits were then randomly divided into three groups (n = 12 per group) and the defects were treated with TEP (Group 1), allogeneic deproteinized bone (DPB) (Group 2) or a hybrid of TEP and DPB (Group 3). At 4, 8, and 12 weeks after surgery, the rabbits were sacrificed, and the implants were harvested. X-ray radiographic and histological examinations were performed to detect bone healing. Ink-formaldehyde perfusion was introduced to qualitatively analyze vascularization in TEP engineered new bone. Results: The repair of scapular defects was diverse in all groups, shown by radiographic and histological tests. The radiographic scores in Group 1 and Group 3 were significantly higher than Group 2 at 8 and 12 weeks (p < 0.05). Histological scores further proved that Group 1 had significantly greater new bone formation compared to Group 3 (p < 0.05), while Group 2 had the lowest osteogenesis at all time-points (p < 0.001). Ink-formaldehyde perfusion revealed aboundant microvessels in TEP engineered new bone. Conclusion: We conclude that TEP is promising for the repair of large irregular bone defects. As a 3D scaffold, DPB could provide mechanical support and a shaping guide when combined with TEP. TEP engineered new bone has aboundant microvessels.

Study of Novel Threadlike Structures on the Intestinal Fascia of Dogs

Zhao-Feng Jia,소광섭,Qiang Zhou,Bo Dong,Wen-Hui Yu 사단법인약침학회 2011 Journal of Acupuncture & Meridian Studies Vol.4 No.2

The primo-vascular system was visualized in the mesentery surrounding the small intestine of a dog using Trypan blue. This structure, which was first observed in a rat, formed a network as primo-vessel branches were joined to primo-nodes. Other characteristic features of the primo-vascular system, such as bundles of tubes with fibrous extracellular matrix in a primo-vessel and a broken-line alignment of rodshaped nuclei along the primo-vessel, were observed. Blood vessels, lymph vessels,and primo-vessels were present in the same mesentery, and they could clearly be distinguished by histological differences.

A Study on the Influence of SNS Quality Factors on Perceived Value and Consumer Intention to Purchase

Jia Zhao 아시아무역학회 2020 Journal of Asia Trade and Business Vol.7 No.1

Purpose - This study aims to identify quality factors of SNS from a consumer’s point of view and verify their influence on how quality factors that affected perceived value will be reflected in customer’s purchasing decisions at a later date. Design/Methodology/Approach - To achieve the objectives of study, survey was conducted on general consumers who had used SNS from May 7, 2019 to May 24, 2019. For the analysis of survey, SNS quality of restaurant companies was analyzed for perceived value and impact on purchasing decision using SPSS and AMOS. Findings - The results of this study according to research questions are as follows. First, based on preceding research, three dimensions of service quality, system and information were derived from analysis results of factors on quality of restaurant’s SNS. Second, it was found that quality of social networking services for restaurant companies had a positive effect on perceived values. Third, perceived value was shown to have a positive effect on actual intention of purchasing from restaurant company. Fourth, perceived value between restaurant company SNS quality and intention to purchase was shown as a partial medium effect. Research Implications - The results of this paper suggested an effective direction for SNS suppliers in establishing various marketing strategies in the future. Theoretically, we would like to present development direction of restaurant company SNS and present academic data for marketing strategy innovation in dining industry and competitive advantage in line with the era of the fourth industrial revolution.

The Effect of Cafe Mobile App’s Convenience Service on Perceived Value and Reuse Intention

Jia Zhao 아시아무역학회 2019 Journal of Asia Trade and Business Vol.6 No.2

In this study, based on previous studies, we examine the causal relation model that influences reuse intention, which is a dependent variable through perceived value as a parameter by measuring the service convenience for cafe mobile application. The questionnaires were surveyed by an online company(EMBRAIN). Online research was conducted for one week from October 26 to November 8, 2018. There are 13 items of the collected data were excluded and 324 items suitable for irradiation were used. After data collection, frequency analysis was performed on the general characteristics of questionnaire survey using SPSS, and data conclusions were derived by verifying reliability and validity of data and hypotheses. Study results show that service convenience of cafe mobile application has a positive effect on perceived value and reuse intention. In addition, in the relationship that cafe mobile app’s service convenience has a significant (+) influence on reuse intention, perceived value proved to have meaningful results as intermediary roles. Implications of this study are as follows. First of all, this study will be helpful for cafe companies and consumers if utilize the service convenience of cafe mobile application in perceived value and reuse intention in marketing applications. Therefore, theoretically, we propose the development direction of cafe mobile application and present academic data for marketing strategy innovation and competitive advantage in the food service industry that conforms to the fourth industrial revolution era.

Improve Efficiency and Reliability in Single-Hop WSNs with Transmit-Only Nodes

Jia Zhao,Chunming Qiao,Sudhaakar, R. S.,Seokhoon Yoon IEEE 2013 IEEE transactions on parallel and distributed syst Vol.24 No.3

<P>Wireless Sensor Networks (WSNs) will play a significant role at the “edge” of the future “Internet of Things.” In particular, WSNs with transmit-only nodes are attracting more attention due to their advantages in supporting applications requiring dense and long-lasting deployment at a very low cost and energy consumption. However, the lack of receivers in transmit-only nodes renders most existing MAC protocols invalid. Based on our previous study on WSNs with pure transmit-only nodes, this work proposes a simple, yet cost effective and powerful single-hop hybrid WSN cluster architecture that contains not only transmit-only nodes but also standard nodes (with transceivers). Along with the hybrid architecture, this work also proposes a new MAC layer protocol framework called Robust Asynchronous Resource Estimation (RARE) that efficiently and reliably manages the densely deployed single-hop hybrid cluster in a self-organized fashion. Through analysis and extensive simulations, the proposed framework is shown to meet or exceed the needs of most applications in terms of the data delivery probability, QoS differentiation, system capacity, energy consumption, and reliability. To the best of our knowledge, this work is the first that brings reliable scheduling to WSNs containing both nonsynchronized transmit-only nodes and standard nodes.</P>

Association of Single Nucleotide Polymorphisms in Exon 6 Region of BMPRIB Gene with Litter Size Traits in Sheep

Jia, Cunling,Li, Ning,Zhao, Xingbo,Zhu, Xiaoping,Jia, Zhihai Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.10

The objective of this study was to investigate polymorphisms of BMPRIB (bone morphogenetic protein type IB receptor) gene and its effect on litter size traits in sheep. Three populations including 101 Small Tailed Han sheep, 79 Poll Dorset and 81 hybrids (Poll Dorset${\times}$Small Tailed Han sheep) were used to detect the polymorphisms in exon 6 region of sheep BMPRIB gene. A fragment of approximately 190bp was amplified by one pair of primers, the polymorphism was revealed from the analysis of three populations by the technique of PCR -SSCP, and a mutation from A to G at 746 of the coding region was confirmed by sequencing in several individual. Statistical results indicated the distribution of allele B (with a A$\longrightarrow$G mutation) and A (without mutation) or genotype AA, AB and BB frequencies differed in three populations. BB genotype (44.55%) and B allele (66.34%) frequencies of Small Tailed Han sheep were higher than those of the others. Analysis of variance showed that the polymorphism of BMPRIB gene was associated with positive effect on litter size traits. The means of genotype BB and AB were about 1.04 and 0.74 more than genotype AA for litter size (p<0.05). Analysis of BMPRIB genotype effects on litter size in three populations indicates the existence of genotype BB or B allele increases the litter size. It suggested that the polymorphism in exon 6 (at 746 in the coding region) of sheep BMPRIB gene may be used as a marker for early selection of prolificacy in sheep.