• Journal of KIISE:Information Networking
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• v.35 no.2
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• pp.120-129
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• 2008

The purpose of sensor network is gathering the information from sensor nodes. If there are selfish node that deliberately avoid packet forwarding to save their own energy, the sensor network has trouble to collect information smoothly. To solve this problem we suggest a mechanism which uses credit payment schema according to the amount of forwarding packets. Sensor nodes use credits to send their own message and they forward packets of other sensor nodes to get credits. To offer authenticity we combined the roles of sink node and server, also we used piggybacking not to send additional report message. The packet trace route is almost fixed because sensor node doesn't have mobility. In this case, it happens that some sensor nodes which don't receive forwarding packets therefore they can't get credit. So, we suggested the way to give more credits to these sensor nodes. Finally, we simulated the suggested mechanism to evaluate performance with ns2(network simulator). As a result, packet transmission rate was kept on a high rate and the number of arrival packets to sink node was increased. Also, we could verify that more sensor nodes live longer due to deceasing the energy consumption of sensor nodes.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.11
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• pp.4251-4259
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• 2010

This study investigates the needs of cruise tourists for building customer oriented ubiquitous tourism services. Through the field survey, the relationship between cruise tourism motivations and ubiquitous cruise services were analyzed. In this study, cruise tourism motivations mean destination attraction, family friendship, socialization, education/novelty and escape from daily routine. And ubiquitous cruise services are consists of boarding service, security service, safety service, customization service, and payment services. The results are as follows; cruise tourists with more socialization motivation get more use intention of ubiquitous payment service; cruise tourists with more destination attraction have more use intention of ubiquitous customization service.

• The Journal of the Korea Contents Association
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• v.15 no.10
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• pp.495-503
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• 2015

This study attempts to reveal that the connection between consumers' self enhancement and consumer-brand relationship can be formed from brand experiences not only through a direct use of products or brands but also through companies' marketing activities including advertising or promotion, in that consumers' sensual, affective, cognitive, and behavioral response to brands are included in brand experiences. After experiencing the Samsung Galaxy S brand with manipulated stimulus, 248 respondents' positive emotion and self-enhancement were increased. Also the positive emotion induced by brand experience increase self-enhancement. This study also shows that brand experience and self-enhancement can significantly affect consumer-brand relationship which in turn affects brand loyalty such as satisfaction, recommendation intention, and repurchase intention. Experiencing strong, favorable, and attractive brand personalities may help consumers to increase positive emotions with self-enhancement and help companies to have brand loyalty through consumer-brand relationship.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.24-41
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• 2016

Study is about Bit Coin that is electronic cash that is received attention globally in recent. It is increasing domestically that uses bit coin for convenience of micro payment, and also bit coin is possible to exchange each countries' currency. In this point, we searched understanding degree and acceptance of bit coin. Also we applied transformed TAM(Technology Acceptance Model) to search factors that have an effect on consumers' intention to use it. In advance, we analyze features of bit coin, and extract factors through preceding researches for existing electronic cash, because studies for intention to use bit coin are weak in internal and external. First of results is that 'economic efficiency' which is a characteristic variable of bit coin influences 'intention to use,' a dependent variable through 'perceived usefulness,' a parameter. It was investigated that monetary and mental costs that was costed when we use bit coin were less than using other cash. Secondly, 'payment convenience' that is a characteristic variable affects 'intention to use', a dependent variable through 'perceived usefulness,' a parameter. It was measured that problems of inconvenience that include transaction process, cash management time shortage and exchange changes will be solved by using bit coin. Thirdly, 'reliability' that is a perceived risk variable of bit coin has a direct effect on 'intention to use,' a dependent variable. It was investigated that we could achieve purpose of payment because we weren't influenced by breakdown on system by processing distributed database in some computers. Fourthly, 'perceived usefulness,' a parameter of bit coin directly affects 'intention to use,' a dependent variable. Then consumers who want to use bit coin are fascinated bit coin for various usability. Moreover, we want to provide implications to all of finance corporations, companies related electronic cash and bit coin users based on these results.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.159-167
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• 2018

As the popularity of single-person media content increases, We investigated the causal relationship between perceived value and intention to recommend to others. Individuality was studied on the tendency to sensation seeking and novelty seeking, which is a tendency to take boredom sensitive to monotonous and repetitive daily routines, and novelty seeking refers to new information and stimuli. The hypothesis was that high sensation seeking and high novelty seeking would perceived emotional value, epistemic value, and economic value for a single person 's media content. Hypothesis testing was performed using multiple regression analysis using SPSS21. As a result of the hypothesis test, The novelty seeking has a positive effect on emotional value, epistemic value, and economic value. Users who want to explore and enjoy new things could perceived the emotional value of having fun, fun, and sadness through single-person content, perceived a epistemic value and enjoy new information and situations as a tool to recognize new stimuli and know what they didn't know. And it could be seen that users perceive the economic value that they can enjoy at low cost or free service. The sensation seeking has a significant effect on epistemic value, but it did not affect emotional value and economic value significantly. Those who have a high tendency to sensation seeking can perceive curiosity about one-person media contents, so that they can perceive epistemic value. However, those who feel that they have not significant influence on economic value and emotional value can easily understand that expecting one's content does not feel bored by paying for a low cost or free service.

• Culinary science and hospitality research
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• v.21 no.5
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• pp.119-128
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• 2015

The purpose of this study is to develop and test a model that explains the potential influences of: 1) consumers' values, 2) their attitudes toward green practices and/or environmental concerns, and, 3) "green hotel" visit behaviors. In addition, the study will clarify how these variables relate to each other. The findings of this study will further our understanding of what drives green hotel visit behaviors and will provide insights for public policymakers and industry marketers.

• Journal of the Korea Convergence Society
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• v.12 no.12
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• pp.245-255
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• 2021

This study is an empirical study on how factors such as social factor, entertainment factor on the Wechat social media platform affect users' flow and addiction to use. Researchers thought that despite the increasing addiction of social media Wechat users, existing social media research is limited to service quality and satisfaction, so research on user flow and addiction is necessary. Therefore, the researchers try to through empirical analysis, the WeChat use to addiction path to social factor (social interactivity, payable) and entertainment factor (entertainment, life relevance), examine how WeChat user experience affects the use intention and satisfaction, and determine its role in the user's WeChat addiction and flow, and tested. The results of this study are expected to provide a new theoretical basis for future research on addiction use of social media.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.2
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• pp.7-14
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• 2023

As the consumption paradigm shifts from 'possession' to 'subscription', the subscription economy market is growing rapidly. The subscription economy is characterized by the fact that consumers can pay for and purchase products and services and use them limitedly for a limited time. Therefore, this study examined the effect of subjective perception of the time (duration) of consumers' subscription service use on subscription intention according to the time presentation method (duration/date) of subscription service use. In addition, the effect of differences in time presentation methods according to the type of subscription service (utility/hedonic) on subscription intention was examined. As a result of the study, the willingness to subscribe was higher when offering by date than when offering by date. In addition, for subscription services consumed for practical purposes, there was no difference in the effect on subscription intention according to the time presentation method. appeared to be Based on these results, the theoretical significance and practical implications of this study were presented.

• Journal of the Korean Society of Food Culture
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• v.14 no.4
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• pp.289-304
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• 1999

The purpose of this study was to examine the consumers' acceptance of irradiated foods according to sociodemographic characteristics and the factors to distinguish subjects with differential levels of their willingness to buy them. Data were collected from the 365 women living in Youngnam area by the self-administered questionnaire. The results from this study were as follows. First, consumers were concerned regarding food safety issues in general and particularly preservatives. Second, many subjects had not heard of the irradiated foods and showed wait-and-see attitude in the willingness to accept them. Consumers' willingness to purchase them were higher than any other cases if radiation would not remain in foods. Third, the results from the discriminant analyses showed that the concern toward food safety, perceived innovativeness, willingness to pay more for organic foods, and knowledge of irradiation were the factors to distinguish groups with differential levels of willingness to purchase the irradiated foods. The results from the study imply that accurate and scientific information about food irradiation should be given to the consumers.

• The Journal of the Convergence on Culture Technology
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• v.7 no.3
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• pp.365-374
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• 2021

Recently, the high growth rate and advantages of the crowdfunding market have also led to increased participation of brands and companies, and this also applies to fashion business. Risk has been noted to be a key factor in consumer behavior in crowdfunding. With the high-risk context of crowdfunding where supporters inevitably bear to pay full amount of price before receiving the actual products. Factors enhancing or inhibiting perceived risk of crowdfunding need to be explored. The past literature on perceived risk and consumer attitudes in crowdfunding has expanded, but it has rarely covered the context of experience goods such as fashion products. In addition, the platform characteristics in relation to perceived risk should be addressed. The current study attempts to address the effect of the perceived amount of information offered in a fashion crowdfunding project on perceived risk and the intention to participate in the project. For the experiment of this study, a fictitious crowdfunding page for fashion products was set as the stimuli. A total of 240 Korean participants were recruited and their responses were statistically analyzed using SPSS 24.0 software. In the results, the greater the amount of detailed information about the fashion crowdfunding project, the higher the intention to participate the project. The greater the amount of information provided, the lower the perceived risk of consumers. Moreover, the lowered perceived risk affected the intention of participate. Perceived risk has a partial mediation in the relationship between the amount of information and intention to participate. Theoretical and managerial implications are discussed.