• Journal of the Korea Institute of Information Security & Cryptology
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• v.17 no.2
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• pp.3-17
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• 2007

Receiver access control scheme is proposed to protect multicast distribution tree from DoS(Denial-of Service) attack induced by unauthorized use of IGMP(Internet group management protocol), by extending the security-related functionality of IGMP. Based on a specific network and business model adopted for commercial deployment of IP multicast applications, key management scheme is also presented for bootstrapping the proposed access control as well as accounting and billing for CP(Content Provider), NSP(Network Service Provider), and group members.

• Proceedings of the Korean Society of Plant Pathology Conference
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• 2002.11a
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• pp.117.2-118
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• 2002

• Korean Journal of Human Ecology
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• v.21 no.2
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• pp.241-256
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• 2012

Gas station consumers have become increasingly conscious of expanding choices and service options available at retail outlets. The purpose of this study was to determine key factors in customer choice of gas / service stations. This study seeks to identify key the relationship between socio-demographical variables and consumer choice, and consumer satisfaction and loyalty associated with gas / service station usage. The research instrument comprised of a questionnaire in the form of an on-line survey that was administered during November, 2010. A Total of 1,000 questionnaires were used in the final analysis. The collected data were treated with SPSS Windows 18.0 and analyzed in for frequency, percentage, mean, standard deviation, pearson's correlation analysis, and multiple regression analysis. The results of were as following: First, there was a strong positive relationship between involvement, satisfaction, loyalty of gas station service. Second, satisfaction was significantly affected by involvement, the frequency of gasoline purchases, the information route and customer's occupation. Third, loyalty was significantly affected by consumer satisfaction, involvement, frequency of gasoline purchases, information route and customer's occupation.

• Journal of the Korean Home Economics Association
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• v.44 no.2 s.216
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• pp.61-69
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• 2006

The purposes of this study were,1) to examine the clothing purchase behaviors of the elderly, and 2) to investigate the relationships of clothing purchase behaviors, information source, service quality and clothing buying motive, which may provide insights related to the silver market. Data were obtained for women in their 50's and 60's women living in Busan (N=285), and analyzed using to factor analysis, Cronbach's alpha, ANOVA and Duncan test. The research findings of the research wereare asan follows. The elderlys women bought clothes with their her friends, used credit cards, and usually shopped at the department stores. There were partly significant (Ed- it cannot be 'partly' either it was significant or it was not) differences in clothing purchase behaviors, information source, and service quality by clothing buying motive types. The ostentation group considered more massmideamass mediainformation sources and experience/salespersons/observation information sources, more was higher than the economic group and utility groups. The ostentation group and economical groups attached more importance to Facilities Service and Policy Service in service quality, was higher than the utility group. The Iimplications and drawn from the study results for the information will be useful to consumer behavior researchers and retailers of the silver market.

• Korean journal of food and cookery science
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• v.26 no.2
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• pp.129-137
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• 2010

The purposes of this study were to understand the influence of perceived service quality in upscale Korean restaurants on a customer's feeling response and revisit intent, and to empirically analyze whether a customer's feeling response plays a mediating role between the service quality and revisit intent. Based on a total 303 samples obtained from the empirical research, this study reviewed the reliability and fitness of the research model and verified a total of 2 hypotheses using the Amos program. The hypothesized relationships in the model were tested simultaneously by using a structural equation model(SEM). The proposed model provided an adequate fit to the data, ${\chi^2}_{(df=263)}=557.397$, CMIN/df 2.119, RMR .09, GFI .88, AGFI .86, NFI .94, CFI .97, RMSEA .06. The major results of this study can be outlined as follows: Price & value($\beta=.40$), food quality($\beta=.26$) and atmosphere($\beta=.15$) had a significant positive effect on the customer's feeling response, and the customer's feeling response($\beta=.65$) had a significant positive effect on revisit intent. In addition, the effect of the perceived service quality in upscale Korean restaurants on revisit intent was found to be partially mediated by the customer's feeling response. Limitations and future research directions are also discussed.

• Korea Journal of Hospital Management
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• v.24 no.2
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• pp.38-55
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• 2019

Purpose / Approach : This study aims to analyze the level of public service motivation and its antecedents by using survey data of 1,498 professional employees in public and private hospitals. Findings : Among job-related, organization-related, and socialization-related factors of professional employees, the socialization factors have a strong effect on individual's overall and the four sub-dimensions of public service motivation. While the effect of organizational identification is prominent in the public hospital, professional identification is more powerful in the private hospital. Person-job fit and person-organizational value fit also play a significant role in determining public service motivation. Organizational vision salience in public hospital has negative effect on public service motivation and attraction-to-public-service dimension. The significant determinants and its effect size are different according to hospital type and each sub-dimension of public service motivation. Practical Implications : The empirical findings show that individual's level of public service motivation in hospitals could be enhanced through the interaction between individual and their organization, and various organization-related factors. Further implications of the study are discussed from human resource management perspective in hospitals.

• Korean Journal of Community Nutrition
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• v.5 no.2
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• pp.236-242
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• 2000

Due to the diversification of the food industry and its heightened competition, the marketing strategy to be required the most would be to improve competitiveness by enhancing customer loyalty as a resulting variable of customer satisfaction. Thus, this study, taking a food service provider as a subject, is to find factors and the scope of the perceived quality ; and to analyze how far the perceived service quality factor as such could explain customer′s overall satisfaction and customer loyalty ; finally to provide basic data for establishing a customer satisfaction marketing strategy as related to customer loyalty. The results of the study are as below. 1) 25 factors of service quality perceived by a food service provider have been categorized into 8 independent dimensions through factor analysis. Each of them are named ′Employee attitude′, ′Cleanliness′, ′Reputation′, ′Reliability′, ′Food′, ′Price′, ′Convenience′, ′Variety′, all of which explain 64.3% of the service again quality perception level. 2) After classifying customers into 3 groups according to two criteria -"will buy the service again" and "will suggest it to others" and making a pair of service providers with each customer, each customer loyalty group compared the service quality perception factor of the food service provider. The result was that the group having both the " will buy the service again" and "will suggest to others" criteria, that is, with higher loyalty, tend to have higher points than other group s in the dimension of ′Employee attitude′ and ′ Cleanliness′(p〈0.05), which means these two dimensions are closely related to customer loyalty. 3) From a regression analysis for the service quality perception level of the food service provider and overall satisfaction, it has been found that : the regression models are different for each group, that ′Employee attitude′ seems to be related more closely to the group with higher loyalty(p〈0.05); that the ′Price′dimension is found to be a meaningful factor to the group categorized not having "will buy the service again" and "will suggest to others" criteria(p〈0.05).

• Journal of the East Asian Society of Dietary Life
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• v.27 no.2
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• pp.204-214
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• 2017

Recently, many TV restaurant programs become popular, and TV restaurant programs have a big impact on Korean restaurant consumers. The purpose of this study was to understand the effects of information attributes in Korean TV restaurant review programs food service customer's empathy, attitudes and visit intention. Based on a total of 254 samples obtained from the empirical research, this study reviewed the reliability and fitness of the research model using the Amos program. The hypothesized relationships in the model were tested simultaneously by using structural equation model (SEM). SEM showed that the beneficialness (${\beta}=.187$, p<.01), amusement (${\beta}=.427$, p<.001) and vividness (${\beta}=.243$, p<.01) showed positive significant effects on customer's empathy. Customer's empathy had a positive significant effect on attitudes (${\beta}=.645$, p<.001) and visit intentions (${\beta}=.157$, p<.001). The information attributes of TV restaurant programs and the causal relationship between empathy of consumers were examined. We also verified that empathy positively affects attitudes toward intentions to visit restaurants introduced on TV restaurant programs. Limitations and future research directions are also discussed.

• Journal of Broadcast Engineering
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• v.26 no.2
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• pp.197-207
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• 2021

The emergency alert broadcast service based on cellular communications is defined as CBS. However, the CBS just supports a limited text message, which might be unavailable to foreigners, who are unfamiliar with local characters. The CBS protocol relies on a broadcast mechanism. Such a broadcast technology exhibits that the number of outage users significantly increases under poor channel conditions. In this paper, we present a supplementary service technology for 5G CBS, which considerably enhances the accessibility of foreigners and illiterate persons, and the receiver performance. For the enhanced receiver performance, the proposed supplementary service approach effectively exploits the device-based geo-targeting capability that the 5G CBS can afford to offer.

• Journal of Fashion Business
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• v.9 no.6
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• pp.39-55
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• 2005

This study examines closely the relationship between beauty art service quality and value. And satisfaction and purchase action that they do perceive to customers who have beauty art service company's service use experience. Moreover, this study was achieved purposely to present service raising plan of good quality to beauty art company managers and business employees. First, to investigate the concept of beauty art service quality and special quality was with doctrines that have been presented through a virtue aspect to achieve this study. Moreover, the wave and beauty art service, human service relativity is a let down unlike manufacture enterprise. Further more, beauty art service by complex composition of existence and nonexistence style is sold, and it could be known by having personality consumed at the same time production. The concept of quality about beauty art service and quality that became perceived through virtue study of concept and measurement about value. Therefor, value was deduced, and could deduce measurement, the linear measure that is applied to measure this. Large majority virtue study found is measuring quality of service to 22 articles on PZB's theory, and this study corrects measurement, the linear measure that is applied in Morritt's study that is based in PZB matrix and supplements and attempted measurement to 22 items. The result measurement dimension is consisted of functional quality, technological quality, physical quality dimension. To measure this through virtue study about value that become perceive, could confirm that all expense and beauty art companies which the customer is paid, connect with offering general quality of service. Therefor, through measurement, 2 dimension was deduced by monetary value and the non-monetary value.