• Proceedings of the Korean Society of Precision Engineering Conference
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• 2000.11a
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• pp.717-720
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• 2000

Event-driven communication protocols such as CAN(Controller Area Network) have inherent packet delays due to the contention process for the use of network medium. These delays are stochastic in nature because most packets arrive at random time instants. The stochastic property of the delay adversely influences the control system's performance in terms of stability, responsiveness and steady-state error. Another problem for safety-critical application such as brake-by-wire systems is the reliability of the communication modules that can fail abruptly. This paper deals with two methods to overcome the above problems : (i) scheduling method that can maintain packet delays under some acceptable level, and (ii) redundancy management of communication modules that prescribes dual-redundancy modules' behavior when one of them fails.

• Proceedings of the CALSEC Conference
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• 2005.03a
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• pp.201-206
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• 2005

Our goal is aimed at positive-analyzing how quality level of mobile banking service is composed of by 22 questions from SERVQUAL of existing PZB. As a result of positive-analysis, 4 different factors-reliability, empathy, tangibilities, assurance- were deduced, different with 5 levels. Responsiveness is absorbed other dimensions. Also, we tried to find out the appropriate method between SERVQUAL method, showing the difference between the consumers' expectations and the assessment of the actual performance, and model of SERVPERF, measuring performance recognized points while dealing with the concept of SERVQUAL to scale the service qualities of mobile banking.

• The Korean Journal of Health Service Management
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• v.5 no.1
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• pp.45-60
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• 2011

The purpose of this study is ultimately to contribute to enhancing quality of patients' life, by grasping quality level of care-giving service that is recognized by inpatients of long-term care hospital, and by pursuing a plan for improving quality of care-giving service based on this. For this, targeting 500 patients who entered 40 long-term care hospitals in Daejeon Metropolitan City, the quality of service was multi-dimensionally grasped by using SERVQUAL scale. As a result of research, the quality of care-giving service, which is recognized by patients as survey subjects, tended to be relatively high with about 4 points as a whole out of 5-point perfection. By item, reliability was indicated to be the highest with 4.56 points. The next was surveyed to be in order of tangibility, empathy, responsiveness, and assurance.

• Development and Reproduction
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• v.11 no.3
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• pp.205-217
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• 2007

As an initial step toward better understanding of the molecular mechanism of estrogen-dependent growth in myoma, an optimal primary cell culture condition has been developed and examined by this study. Myoma and myometrium were cultured by two different methods. Culture stability and $E_2$-responsiveness in stable culture were studied. The culture of digested tissue pieces(Method 2) was found to be a stable culture method for the myoma and myometrium showing a favorable response to estrogen. mRNA expression of PR, IGF-1 and IGF-1 receptor genes was enhanced by $E_2$. The gene responses to $E_2$ were higher in myoma compared with myometrium. Moreover, these responses were more expressive in tissues than in the surrounding cells in primary culture of normal myometrium and myoma, implying a vital role of cell communication through the extracellular matrix in maintaining the estrogen-responsiveness. The development of an improved cell culture system for myoma provides an in vitro tool to further investigate the basis of the tumor formation.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.10
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• pp.241-254
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• 2020

International payment is an essential part of the economy, which is beneficial to both commercial banks and trading enterprises. Moreover, service quality, which has been a key point of discussion for decades, relates to customer satisfaction. This study aims to investigate the factors influencing international payment service quality at the Join Stock Commercial Bank for Investment and Development of Vietnam (BIDV) from 2015 through 2019. This research deploys both quantitative and qualitative methods to discuss the effects of these components. Statistical data was examined through different tests, including reliability analysis, correlation, and regression analysis by SPSS 16.0. The authors obtain and analyze 157 valid responses from customer surveys, then by applying an integration SERVPERF and PSQM model, identify five main components: Reliability, Tangibles, Assurance, Convenience, and Responsiveness, which explain how the customer perceives the service quality of international payment activities at BIDV. The results show that these five factors have a positive relationship with service quality, in which, Reliability has the most significant impacts on service quality level. Besides, the findings not only contribute to the literature but also give some practical implications for BIDV to improve its international payment service quality and help them to obtain customer satisfaction in the fast-changing environment.

• Journal of the Korea Society of Computer and Information
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• v.25 no.3
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• pp.97-107
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• 2020

This paper shows the result of a survey about the users using Didi Chuxing in China to analyze the effect of the service quality and technology acceptance model (TAM) on customer satisfaction. There are 314 valid responsiveness out of the 414 for 9 days, which had been analyzed with SPSS and AMOS. In the analysis result, the academic implications are as follows. First, it was analyzed that the quality of service had a positive(+) effect on the technology acceptance model. Second, it was analyzed that the technology acceptance model had a positive effect on the attitude and customer satisfaction. Third, in the analysis result of the moderate effect, attitude and customer satisfaction vary partially according to whether types of reliability. The practical implications are as follows: First, it is necessary to provide service quality factors to customers. Second, It is necessary to suggest ways that customers can gain reliability. These findings also have limitations and research directions. First, the variety of samples is needed. Second, an analysis is required according to the type of vehicle use. Therefore, future research and analysis will need to be subdivided.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.5
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• pp.159-173
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• 2019

The purpose of this study is to examine the effect of service quality of banks on customer satisfaction and recommendation intention through empirical analysis. In particular, the focus was on the differences of the causal effect between PB(Private Banking) customers and regular customers. For this study, two groups were surveyed and 428 valid questionnaires were analyzed. The hypothesis was tested with a structural equation model using AMOS 23.0. As a result, empathy, reliability and tangibles of bank service quality had a positive(+) effect on customer satisfaction. However, responsiveness and assurance were not statistically significant. On the other hand, customer satisfaction has a positive effect on recommendation intention. This study was conducted to compare the two groups, PB customers and regular customers, and found a significant difference. In the PB customers group, tangibles had a positive effect on customer satisfaction, but no other factors were supported. On the other hand, in the regular customers group, empathy and reliability had a positive effect on customer satisfaction while responsiveness, assurance, and tangibles were not supported. Customer satisfaction were analyzed to have a positive influence on recommendation intention in both groups. These findings are academically significant by applying the SERVQUAL factors to banking services and revealing the differences between the PB customers and regular customers. In practice, it is meaningful in that it provided banks with the insights needed for future segmentation and management of customer groups.

• Journal of Service Research and Studies
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• v.13 no.3
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• pp.39-56
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• 2023

Due to restrictions on offline activities caused by COVID-19, the use of mobile applications is increasing along with interest in online shopping, which are non-face-to-face commerce. Accordingly, mobile applications and various industries are combined, and the number of cases of using mobile applications in the fashion industry is increasing. In this study, the effect of e-service quality of fashion mobile applications on user's flow, user satisfaction, and service loyalty was examined. To conduct this study, a survey of 274 people who experienced the 'ABLY' fashion mobile application was used for analysis to verify the hypothesis. As a result of the analysis, it was found that informativity and responsiveness among the e-service quality of fashion mobile applications had a positive (+) effect on flow. And it has been confirmed that informativity, reliability, and responsiveness affect user satisfaction. In addition, flow has a positive (+) (+) effect on user satisfaction, and user satisfaction has a positive (+) effect on service loyalty. However, among the e-service quality of fashion mobile applications, reliability did not have a positive (+) effect on flow. And ease of use did not have a positive (+) effect on both flow and user satisfaction. Finally, it was confirmed that flow did not directly affect service loyalty. Through this study, we intend to contribute to the establishment of marketing strategies for fashion mobile application users, who are increasing with the development of mobile technology, and provide practical implications for the post-COVID-19 era.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.410-416
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• 2017

The silver generation in our aging society will rapidly emergeas a new consumer group and the service industry used by silver customers will develop going forward. The beauty service sector is one of the most needed ones for the qualitative improvement of life for the silver generation. In this research, ananalysis was conducted on 244 persons of the silver generation living in Seoul, in order to examine the factors affecting the quality of the beauty service for the silver generation and their relationships with customer loyalty. For the statistical treatment of the empirical analysis, the SPSS 23.0 and AMOS 23.0 statistical programs were used. The results of the analysis showed that the service quality perceived by the silver customers who used the beauty service had significant effects on trust and flow, which are the relationship qualities, and that trust and flow had positive effects on customer loyalty. Also, it was found that, in the relationship between service quality and customer loyalty, trust had mediating effects on reliability, responsiveness, empathy, and assurance, and that flow had mediating effects on reliability, responsiveness, empathy, assurance, and tangibility. The results of this research are significant in that they present the basic data enabling the beauty industry to play an important role for the silver generation, under the present circumstances in which the beauty service industry has minimal educational programs exclusively available for the silver generation.

• Journal of Korea Port Economic Association
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• v.30 no.4
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• pp.47-67
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• 2014

This study examined elements which could evaluate a container terminal logistics system from the viewpoint of supply chain management. This study derived the elements of a container terminal logistics system such as flexibility, reliability, responsiveness, and information sharing and 16 evaluation sub-items in the aspect of a supply chain. In the result of analysis, the weight between SCM elements of a container terminal logistics system was the highest in reliability(0.282), followed by flexibility(0.273), responsiveness(0.224), and information sharing(0.221). The conversion weight was calculated by combining the weight of elements of a container terminal logistics system and the weight of evaluation sub-items. The highest weight which was considered as the most important factor to evaluate a container terminal logistics system was work planning(berth, yard) of flexibility(0.081), followed by accurate fulfillment of container work schedule(ship, yard) and the optimum distribution and arrangement of equipment(QC, TC, YT)(0.079), stable works without damage of containers and ships(0.071), and preventive maintenance of equipment and operators' skill(0.070).