• 수산해양기술연구
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• 제44권4호
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• pp.362-369
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• 2008

The snow melting system by electric heating wires which is adopted in this research is a part of road facilities to keep surface temperature of the road higher than freezing point of water for melting the snow accumulated on it. The electric heating wires are buried under paved road at a certain depth and operated automatically and manually. Design theory, amount of heating, and installation standard vary according to economic situation, weather condition, installation place and each country applying the system. A main purpose of this study is figuring out the appropriate range of required heat capacity and installation depth and pitch for solving snowdrifts and freezing problems with minimum electric power consumption. This study was performed under the ambient air temperature($-2^{\circ}C$, $-5^{\circ}C$), the pitches of the electric heating wires(200 mm, 300 mm), heating value($250\;W/m^2$, $300\;W/m^2$, $350\;W/m^2$).

• 한국정보시스템학회지:정보시스템연구
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• 제24권4호
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• pp.99-116
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• 2015

Purpose One of the main characteristics of Social Network Service(SNS) is that users in an open space makes posts through voluntary participation and sharing among them. This makes SNS a very attractive channel to companies that need to send their messages to consumers. As a matter of fact, there are many companies doing marketing activities through a platform of Fan Page as a space for corporations and consumers to act together. This study defines the values and types of companies' advertising posts on Facebook, empirically analyzes the results of them, and investigates factors that could enhance the customer engagement. Design/methodology/approach A research model was built to demonstrate which values and types of posts were combined by corporations' posts on Facebook and create their messages and which of those combinations would lead to high results of customer engagement. Findings The results show differences in the values of posts between the group of high customer engagement and the other group on Facebook. This study makes its contribution by conducting elaborate analysis of posts on Facebook and thus proposing marketing strategies that companies, which had difficulties with systematic marketing activities due to cost limitations, could use on Facebook.

• Journal of Information Processing Systems
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• 제17권3호
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• pp.615-629
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• 2021

With the development of mobile edge computing, how to utilize the computing power of edge computing to effectively and efficiently offload data and to compute offloading is of great research value. This paper studies the computation offloading problem of multi-user and multi-server in mobile edge computing. Firstly, in order to minimize system energy consumption, the problem is modeled by considering the joint optimization of the offloading strategy and the wireless and computing resource allocation in a multi-user and multi-server scenario. Additionally, this paper explores the computation offloading scheme to optimize the overall cost. As the centralized optimization method is an NP problem, the game method is used to achieve effective computation offloading in a distributed manner. The decision problem of distributed computation offloading between the mobile equipment is modeled as a multi-user computation offloading game. There is a Nash equilibrium in this game, and it can be achieved by a limited number of iterations. Then, we propose a distributed computation offloading algorithm, which first calculates offloading weights, and then distributedly iterates by the time slot to update the computation offloading decision. Finally, the algorithm is verified by simulation experiments. Simulation results show that our proposed algorithm can achieve the balance by a limited number of iterations. At the same time, the algorithm outperforms several other advanced computation offloading algorithms in terms of the number of users and overall overheads for beneficial decision-making.

• 한국정보시스템학회지:정보시스템연구
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• 제30권2호
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• pp.79-103
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• 2021

Purpose Based on consumers' economic, psychological, self-development and conversion costs, this study discusses the relationship between consumers' negative attitude to their shadow work during the course of using self-service in unmanned supermarkets and their behavior. Design/methodology/approach Along with the Hirschman(1970)'s EVLN(Exit, Voice, Loyalty, and Neglect) reviewed, the proposed model of this study is based on the S-O-R model(Mehrabian and Russel, 1974) and mental accounting theory(Thaler, 1999), having empirical validation. Findings In the process of visits and consumption in unmanned supermarkets, increasing economic and psychological benefits can effectively reduce consumers' negative attitudes towards shadow work. In addition, the increase in switching costs will also effectively reduce consumers' negative attitudes towards shadow work. When shadow work holds a negative attitude, all the three kinds of actions will occur. Unmanned supermarket operators use consumers to create value while giving a certain return to them, which is conducive to the sustainable development of unmanned supermarket enterprises.

• Journal of Biosystems Engineering
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• 제39권1호
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• pp.11-20
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• 2014

Purpose: Walking type cultivator used for weeding generated excessive handle vibration as well as bouncing motion depending on the weeding speed. This research was conducted to define a design factor of the rotary weeding blades for reducing soil reaction forces as well as hand vibration. Methods: The motion and forces acting on the rotary blades were reviewed to find out the most influencing parameter on hand vibration. The installation angle (IA) of the blade was selected and analyzed to determine the condition of no reaction force less. For removing the unnecessary upward soil reaction, the design factor theory of weeding blade was suggested based on geometrics and dynamics. For evaluation of design factor theory, the experiment in situ was performed base on ISO 5349:1. The vibration $a_{hv}$ and theoretical value $X_{MF}$ were compared with two groups that one was positive group ($X_{MF}$ > 0) and the other was negative group ($X_{MF}$ < 0). Results: $X_{MF}$ was derived from rotational velocity, forward velocity, disk diameter, weeding depth, blade's width and IA of blade. Two groups had significant difference (p < 0.05). In aspect of the group mean total exposure duration, positive group was 17.53% bigger than negative group. When disk radius 100, 150 and 200 mm, minimum IAs were $4{\sim}27^{\circ}$, $3{\sim}15^{\circ}$ and $2{\sim}10^{\circ}$, respectively. A spread sheet program which calculated XMF was developed by Excel 2013. Conclusions: According to this result, minimum IA of weeding blade for soil reaction reduction could be obtained. For reduction hand-arm vibration and power consumption, minimum IA is needed.

• 한국의류산업학회지
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• 제25권4호
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• pp.449-459
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• 2023

This study focuses on online communities and the ritual conversations of users when participating in sharing activities. The study aims to understand the social and psychological phenomena that occur between users within the context of Erving Goffman's impression management theory. Case studies and a content analysis were conducted by collecting posts and comments related to fashion products in the sharing activities category on Naver Cafe "Family Sale." On the one hand, the study identified various disposition motives among givers, including a desire for recognition, self-expression, activation of the community, emotional sympathy, goodwill, play, and simple disposition. On the other hand, receivers' purchase motives included the need for a product, reciprocation based on a sense of belonging, play, gift-giving, and simple response. Analyzing the posts of givers and the comments of receivers of fashion products using impression management strategies and dramaturgical analysis, the study interpreted users' impression management and revealed propensities in fashion consumption: fashionability, conspicuousness, value orientation, and economic feasibility. Through ritual conversations, users managed to attain emotional stability on an individual level, while they reinforced collective bonds on a social level. They fulfilled their roles with their own narratives to achieve personal and collective goals in a non-face-to-face situations and non-monetary transactions. This study is significant in that it examines normative communication in an online community and user relationships to understand a recent phenomenon in the fashion industry.

• Asia Marketing Journal
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• 제14권2호
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• pp.177-207
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• 2012

문화예술상품은 일반 소비재와 달리 소비자의 가치인식에 따라 중요한 소비의 대상이 되기도 하고 그렇지 못할 수도 있는 특별한 상품이다. 물질적 소비재나 서비스 상품은 상품속성이 주는 물질적 및 비물질적 혜택을 상정하여 상품을 개발하고 그에 따른 마케팅전략을 수립하는 것이 효과적일 수 있다. 그러나 문화예술상품 소비는 소비자의 경험과 교육 등에 의해 형성된 문화예술에 대한 가치인식에 따라 소비추구혜택이 달라질 수 있고, 가치인식과 추구혜택은 문화예술상품의 속성을 선택하는 기준에 영향을 미칠 수 있을 것이다. 본 연구는 '문화예술상품에 대한 가치인식과 추구혜택에 관한 질적 연구'의 후속연구로서 질적 연구에서 나타난 개념구조를 바탕으로 문화예술상품에 대한 소비자의 가치인식 및 추구혜택과 상품속성의 하위차원을 규명하고, 수단-목적 사슬이론을 역으로 적용하여 문화예술상품에 대한 소비자의 가치인식이 추구혜택과 상품속성에 미치는 영향을 규명하고자 하였다. 그리하여 문화예술상품 생산 및 문화예술 정책기관과 문화예술을 활용하는 기업의 문화마케팅의 효율성을 제고하기 위한 실무적 시사점을 제시하고자 실시되었다. 10대 이상 50대 남녀 662명을 대상으로 자료를 수집하고 요인분석과 경로분석을 실시하였다. 예술상품에 대한 소비자의 가치인식과 추구혜택의 하위차원은 질적 연구 결과와 유사하게 나타났으며, 가치인식은 대부분 추구혜택을 매개로 하여 상품속성에 영향을 미치는 것으로 나타나 질적 연구결과와 마찬가지로 수단-목적사슬을 역방향으로 적용하는 것이 타당함을 입증하였다. 즉, 문화예술상품에 대한 소비자의 가치인식이 실제적 편익으로 구체화되고, 소비자는 이러한 추구혜택에 따라 상품속성의 중요도를 고려하여 구매의사를 결정하는 것으로 볼 수 있다. 본 연구는 문화예술상품에 대한 소비자의 가치인식을 긍정적으로 형성·강화시키는 것이 가장 중요한 소비 촉진 요인임을 입증하였으며, 문화예술상품 생산기관에서 소비자 중심의 상품개발과 기업의 효율적인 문화예술마케팅 전략을 개발하기 위한 소비자 정보와 실무적 시사점을 제시하였다. 또한 본 연구 결과는 국민의 삶의 질을 향상시키고자 하는 국가기관의 정책 수립을 위한 유용한 정보로 활용될 수 있을 것이다.

• 유통과학연구
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• 제10권2호
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• pp.53-62
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• 2012

본 연구는 소비자의 구매의도 형성과 관련된 선행요인을 설명하는 주된 이론인 계획적 행동모델을 토대로 식품 관련 및 식품소비관련 소비자의 개성특성, 과거 구매행동 빈도 등의 요인들을 포함하여 유기농식품에 대한 소비자의 구매의도에 미치는 구체적인 영향요인을 제시하고자 이루어졌다. 분석결과를 요약하면 다음과 같다. 첫째, 계획적 행동모델에서 주관적 규범을 제외한 태도, 지각된 행위통제(비용)는 구매의도에 유의하게 영향력이 있는 것으로 나타났으며, 특히 유기농식품에 대해 긍정적인 태도를 가질수록 구매의도가 증가할 확률이 높아진다고 할 수 있다. 둘째, 식품에 대한 관심이 많고 중요하게 생각하는 소비자일수록 유기농식품에 대하여 호의적인 태도를 가지게 될 확률이 증가하며, 과거에 유기농식품을 구매한 빈도가 유기농식품에 대한 구매의도에 영향을 미치는 것으로 나타났다. 셋째, 유기농식품을 이용하지 않을 경우 나타날 수 있는 소비자의 부정적 감정이 유기농식품에 대한 구매의도에 부(-)의 영향을 미치는 것으로 나타났다. 넷째, 주관적 규범은 구매의도에, 식품 관련 개성특성(저항감)은 태도에 유의한 영향을 미치지 않는 것으로 나타났다. 본 연구에서 밝혀진 연구결과는 점차적으로 계획적 행동모델의 설명력을 높이기 위해 다양한 요인들을 포함하는 모델의 확장에 대한 필요성이 제기되고 있는 가운데, 향후 소비자들의 구매행동에 있어 구매의도에 추가적인 요인들의 영향력을 검증하였다는 점에서 그 의미를 찾을 수 있다. 하지만 본 연구에서는 식품의 종류를 구분하지 않고 조사하였기 때문에 식품의 종류에 따라 소비자의 반응이 다를 수 있기에 향후에는 이점을 보완해 나가야할 것이며, 또한 구매경험여부에 따라 군집을 나누어 연구하지 않았기 때문에 유기농식품의 구매경험여부에 따라 구매자들을 비교, 검토하여 연구해나가야 필요성이 제기된다.

• 자원ㆍ환경경제연구
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• 제24권2호
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• pp.283-309
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• 2015

본 논문은 한국 기업들이 나고야 협정을 준수하게 하고 생물다양성을 고려한 경영을 하도록 유도하고자 생물다양성 표시제품에 대한 가상가치법을 사용하여 생물다양성에 대한 소비자 가치를 추정하였다. 본 논문의 연구 가설은 생물다양성 표시제의 사용가치와 존재가치가 소비자 가치의 감정 가치, 조건 가치, 그리고 지식 가치를 통해 소비자의 지불의사액에 긍정적인 영향을 미친다는 것이다. 분석대상 제품은 우유(실용재)와 화장품(선호재)이다. 분석 결과, 생물다양성표시가 있을 경우, 우유는 35.7% 화장품은 6.3%의 추가금액을 지불할 의사가 있는 것으로 분석되었다. 특히, 생물다양성 표시제를 실시한 기업에 대한 영향도를 높게 평가한 사람일수록, 생물다양성 표시에 대한 이해도가 높을수록 추가 지불의사액이 높아짐을 알 수 있었다. 이는 기업이 생물다양성을 고려한 공유가치전략을 실시할 경우, 소비자는 기업의 상품에 더 큰 지불을 할 의향이 있으며 이는 기업이 나고야 협정을 준수하게 하는 유인이 될 수 있음을 암시한다. 또한 생물다양성을 고려한 기업경영이 자리 잡기 위해서는 국가차원에서의 제도에 대한 지속적인 교육과 홍보도 필요함을 시사한다.

• 유통과학연구
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• 제13권11호
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• pp.101-109
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• 2015

Purpose - A traditional retail market is a place that offers economic opportunity to employees and employers alike it also is a place where the community can meet. The Korean government has invested three trillion won to improve physical and non-physical aspects in traditional retail markets since 2004. However, little research on this has been conducted. We explore this research gap that could lead to theory extension. We analyze consumption behavior with respect to traditional retail markets through an empirical analysis, thus overcoming limits in previous research. We empirically analyze policy effects of traditional retail market projects supported by the Korean government. Research design, data, and methodology - We propose a traditional retail market improvement plan via the relation between cause and effect resulting from the analysis. More specifically, logit analysis was carried out with 1,754 consumers in 16 cities nationwide. In order to analyze consumer consumption behaviors nationwide, the probability was analyzed using a logit model. This research analyzes the link between support and non-support by the Korean government using binary values. The dependent variable is whether Korean government support is implemented; the binomial logistic regression is used as the statistical estimation technique. The object variables are:1 (support) or 0 (nonsupport), and the prediction value is between 1 and 0. As a result of the factor analysis of questions related to attributes of service quality, four factors were extracted: convenience, product, facilities, and service. Results - The results indicate that convenience, product, and facilities have a significant influence on consumer satisfaction in accordance with the government's traditional retail market support. Additionally, the results reveal that convenience, product, facilities, and service all have a significant influence on consumer satisfaction in a traditional retail market's service quality and consumer satisfaction. Finally, the analysis indicates that the highly satisfied traditional retail market customer has a significant influence on revisit intention. Moreover, the results reveal that the highly satisfied traditional retail market customer has a significant influence on recommendation intention. Conclusions - This research focused on consumers nationwide to measure policy effects of traditional retail markets compared to previous research that focused on one traditional retail market or a specific area. We verified the relationship of service quality and customer satisfaction and consumer behavior based on service quality theory. The results indicate that consumer satisfaction of traditional retail markets supported by service quality factors has a significant impact. In a concrete form, the results indicate that these effects are from facility modernization projects and marketing support projects of the Korean government. The results also imply that these facility and management support effects from the Korean government have been consistent. We realize that the Korean government has to selectively support traditional retail markets in major cities and small and medium-sized cities. To that end, the Korean government needs to select a concentration strategy for the revitalization of traditional retail markets.