• International Journal of Advanced Culture Technology
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• v.10 no.2
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• pp.225-232
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• 2022

When we drive a vehicle in an IoT environment, there is a problem in that information of car users is collected without permission. The security measures used in the existing wired network environment cannot solve the security problem of cars running in the Internet of Things environment. Information should only be shared with entities that have been given permission to use it. In this paper, we intend to propose a method to prevent the illegal use of vehicle information. The method we propose is to use attribute-based encryption and dynamic threshold encryption. Real-time processing technology and cooperative technology are required to implement our proposed method. That's why we use fog computing's proxy servers to build smart gateways in cars. Proxy servers can collect information in real time and then process large amounts of computation. The performance of our proposed algorithm and system was verified by simulating it using NS2.

• Journal of Service Research and Studies
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• v.11 no.2
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• pp.21-36
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• 2021

This study investigated the means-end chain theory more concretely through the APT hard laddering technique. This is carrying out a questionnaire survey targeting users by hair salon type, and the items drawn from the qualitative laddering technique are applied. The technique is a comparative analysis of each attribute, consequences, and value item by analyzing each step's questions. The results are as follows. First, hairdresser's ability, acceptance of individual-customized opinions, and cheap price were the most mentioned items in the selection attributes. As for the consequences items, image transformation, neatness, novelty, and psychological stability were drawn in order. The items indicated as important among the value items were satisfaction, followed by happiness, confidence, beauty, and bond. Second, the remarkable selection attributes, irrelevant of hair salon type, was revealed as hairdresser's ability and the key values pursued when using a hair salon were drawn as satisfaction, confidence, and beauty. From this result, it was found that meeting the desire of consumers using hair salons can be linked with ultimately pursued values. It was also verified that partial differences were shown by hair salon type and this meant that consumers' desire and expected benefits were different by hair salon type. Although this study drew value perception through comparison with hair salon types based on the means-end chain theory, it was confirmed that the most important selection attribute was hairdresser's ability and they select and use hair salons to gain satisfaction and confidence.

• The Journal of Korean Philosophical History
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• no.50
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• pp.333-361
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• 2016

The purpose of this study is to delve into reinterpretation and categorization of normative meaning of tradition. The normative meaning of tradition which plays a key role of the action-guiding power is the main source of morality. According to ecological cultural approach to diachronic transition of traditional value, traditional value leads its dynamic life: its origin, acculturation, transformation, distortion of traditional value depending upon periodic social change. It is necessary for traditional value to be reinterpreted and categorized, with a view to contributing to attribute & competency of democratic citizen in future society. The normative meaning of traditional value applicable for Korea's future society can be reinterpreted from its origin revealed in the classic. The order of discussion in this paper runs as follows. Firstly, we will investigate into dynamic change of the traditional value on the basis of the ecological cultural perspective and seek the possibility of modern reinterpretation of loyalty & filial piety as representative traditional value. Finally, we will treat the categorization and its significance of traditional value in the frame of Korean value including both western value and Korean traditional value.

• International Commerce and Information Review
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• v.18 no.3
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• pp.181-201
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• 2016

In this study, transaction cost approach was applied to analysis on direct export determinants of SMEs by using key attributes of transactions, asset specificity, environmental uncertainty, frequency and marketing capability, with a parameter of opportunism. Typical Transaction Cost Analysis theory explains that when transaction cost with business channels(whether it is for buy or sell) increase, the firms integrate the channels. So it is a choice made by firms regarding direct versus indirect channels. The theory was extended to a model of choice of institutional form of direct or indirect export by a norm of opportunism in this empirical study. The survey result showed that lower level of asset specificity and marketing capability or higher level of environmental uncertainty were likely to expose indirect exporters to higher level of opportunism of direct exporter. And we also saw that indirect exporters were likely to choose direct export chanel when opportunism of exporters was higher. From the standpoint of theory, we can say that the basic propositions of the Transaction Cost Analysis, except the attribute of frequency, are supported. This study result could provide a profiling of target business areas and firms for government's policy on direct export promotion of SMEs.