• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.2
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• pp.169-177
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• 2019

It is very important to understand the intention of a target ship to prevent collisions in multiple-ship situations. However, considering the intentions of a large number of ships at the same time is a great burden for the officer who must establish a collision avoidance plan. With a distributed algorithm, a ship can exchange information with a large number of target ships and search for a safe course. In this paper, I have applied a Distributed Stochastic Search Algorithm (DSSA), a distributed algorithm, for ship collision avoidance. A ship chooses the course that offers the greatest cost reduction or keeps its current course according to probability and constraints. DSSA is divided into five types according to the probability and constraints mentioned. In this paper, the five types of DSSA are applied for ship collision avoidance, and the effects on ship collision avoidance are analyzed. In addition, I have investigated which DSSA type is most suitable for collision avoidance. The experimental results show that the DSSA-A and B schemes offered effective ship collision avoidance. This algorithm is expected to be applicable for ship collision avoidance in a distributed system.

• Journal of Digital Convergence
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• v.18 no.8
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• pp.469-478
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• 2020

The objective of this study is to verify the effects of shopping tendencies and information search on the shopping mall satisfaction and repurchase intention of fashion clothing consumers at this point in time when the mobile shopping has been routinized. To verify this, this study selected male and female university students with experiences in purchasing fashion clothing in mobile shopping mall within the last one year as its samples. For the verification of hypotheses, the factor analysis, multiple regression analysis, and simple regression analysis were conducted. The results of this study are as follows. First, the shopping tendencies of consumers who had experiences in mobile shopping included the economic shopping tendency, entertaining shopping tendency, convenient shopping tendency, and trend-pursuit shopping tendency. Second, the convenient shopping tendency, entertaining shopping tendency, and economic shopping tendency of consumers' mobile shopping tendencies had positive effects on the mobile shopping mall satisfaction and repurchase intention. Third, the information search for purchasing fashion clothing in mobile shopping mall had positive effects on the shopping mall satisfaction and repurchase intention.

• Journal of the Korean Society for information Management
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• v.29 no.2
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• pp.93-112
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• 2012

This study focuses on the characteristics of information seeking behavior through the casual interactions which are regular contacts with others as information sources in the context of ELIS. Qualitative data were gathered using semi-structured one-to-one interviews with 9 wild-goose mothers in order to investigate the casual interactions. We identified information needs, patterns and characteristics of information seeking behavior through the casual interactions and the major interpretative repertoires.

• The Journal of the Korea Contents Association
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• v.16 no.2
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• pp.82-95
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• 2016

This research has analyzed the influence of information search on festival image, emotional response, re-visit intention and intention to share information. Image of festival was assumed to be composed of three components of cognitive, affective and unique image. Emotional response was divided into positive and negative emotion. As the results of influence analysis, word of mouth-effect and online media such as SNS had a significant effect on unique image of the festival. whereas official homepage showed a significant impact on cognitive image. Among three factors of image, affective image had a great influence on positive emotion. as three image factors are associated with positive emotion. Also, Affective emotion was analyzed to have significant influence on re-visit intention and intention to share information.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.3
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• pp.329-337
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• 2019

Advances in the dental medical field now provide high quality medical service, and thus, it has become important to identify the role of dental hygienists. However, the professional status of dental hygienists has not been acknowledged, and this has resulted in problems such as dissatisfaction and high turnover rates at dental hospitals. This study was undertaken to identify factors that influence dental hygienist job satisfaction and turnover rates. To achieve this we used a synthetic approach incorporating individual (optimism), job (professionalism), and organizational (perceived organizational support) characteristics. Our results showed that optimism, professionalism, and perceived organizational support were positively related to job satisfaction. Furthermore, job satisfaction was found to be negatively related to turnover intension and to partially mediate the effect between POS and turnover intention. We believe the results of this study could be used by dental hospitals to address dental hygienist dissatisfaction and high turnover rates.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.131-131
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• 2017

상수관의 노후화로 인해 상수관망의 안정성 확보와 지속적인 용수공급에 대한 신뢰성을 증대시키는 것이 중요해지고 있다. 용수공급시스템을 구성하는 상수관의 파괴가 빈번하게 발생하며, 관 파괴 시에 수리, 교체를 위해서 관망의 일부분은 차폐가 되어 해당 지역의 용수 수요자는 수리, 교체작업이 끝날 때까지 단수가 불가피하다. 이런 불편함과 손실을 최소화하기 위한 방법을 찾는 것은 상수관망의 유지관리에서 중요한 문제이다. 상수관망의 부분적 격리는 오염물에 의한 상수관망의 오염, 테러로 인한 독극물의 유입 시 물질의 확산 방지, 상수관망을 이루는 각종 구조물의 고장수리 및 유지 보수 작업 등의 상황을 위해 필수적이다. 상수관망의 부분적 격리를 분석하기 위해서는 '고립구역'이라는 개념이 필요하다. 관 파괴시 밸브가 닫히면서 해당 관과 연결된 관들 또한 함께 격리되는 부분을 '고립구역'으로 정의한다. 관이 두 개의 밸브를 양 끝에 가지고 있는 경우와 독립적인 절점 또한 하나의 '고립구역'으로 정의할 수 있다. 본 연구에서는 이러한 '고립구역'을 실제 상수관망에서 탐색해서 정의할 수 있는 알고리즘을 제시하였다. 뿐만아니라 상수관 파괴 시 복구를 위해 파괴된 관을 포함한 고립구역이 차폐될 경우, 세그먼트내의 관들은 수원지로부터의 물공급에 차질이 생길 수 있다. 특정 관들의 고립구역이 수원지로부터 유일한 용수공급경로일 경우 고립구역의 차폐로 인해 해당 관들의 용수공급도 끊어지게 되는데 이러한 영역을 '비의도적 고립구간'이라 한다. 본 연구에서는 이러한 '비의도적 고립구간'을 실제 상수관망에서 탐색하여 정의할 수 있는 알고리즘을 제시하였다.

• 한국벤처창업학회:학술대회논문집
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• 2019.11a
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• pp.123-128
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• 2019

최근 스마트 기기의 발전 및 보급 확대에 따라 사용자의 범위는 계속해서 증가하고 있다. 이에 따라 모바일 쇼핑 이용자들이 지속적으로 늘고 있고, 광고 또한 인터넷 기반에서 모바일 플랫폼 기반으로 변화하고 있는 추세이다. 모바일 기기의 중요성이 커지고 편의성이 증대되면서 소비자들의 구매방법에도 많은 변화가 일어나고 있는데, 정보를 탐색하고, 구매를 결정하고, 결제하는 행위 등 모바일에서 이루어지는 비중이 늘어나면서 앱을 구성하는 것 또한 중요한 마케팅 전략으로 자리잡고 있다. 본 연구의 목적 역시 사용량이 급증하게 된 모바일 쇼핑에서 SNS활용도의 조절효과를 중심으로 하여 광고 유형과 애플리케이션 특성이 소비자들의 구매의도에 미치는 영향에 대해서 살펴보고 결과를 제시하여 관련 업계에 도움을 주고자 한다. 본 연구에서는 모바일 쇼핑 이용자들의 모바일 쇼핑을 통한 구매의도에 미치는 영향 요인을 파악하기 위한 선행연구와 이론적 배경을 통해 모바일 광고유형, 앱 특성에 관한 고찰과 구매의도와의 인과관계를 살펴보았다. 연구의 목적은 모바일 쇼핑 이용자들의 모바일 쇼핑을 통한 구매의도에 미치는 영향 요인을 파악하고, 변수들 간의 관계를 규명하는데 있다. 구매의도에 영향을 미치는 요인을 광고 유형, 앱 특성으로 구분하고 이들 변수들이 구매의도에 미치는 영향력을 조절하는 변수로 SNS활용도를 도입하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.4
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• pp.1574-1584
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• 2012

This study attempts to explore the design sensitivity of both luxury and non-luxury brand products, and its effect on purchase intention. As a result, there was no difference in design sensitivity between luxury and non-luxury brand product, but the effect of design sensitivity on purchase intention was found different between luxury and non-luxury brand. It shows that for luxury brand, the people with high design pursuit of the brand have high purchase intention while for non-luxury brand, the people with high design value of the brand have high purchase intention. It indicates that for luxury brands, consumers already recognize the value of its design, which does not affect the purchase intention. For non-luxury brands, it would be important to let consumers recognize their design value.

• The Journal of the Korea Contents Association
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• v.21 no.5
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• pp.118-128
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• 2021

As interest in the audiobook market is growing, this study examined the influence of audiobook usage on purchase intention. An online survey was conducted in December 2020 targeting those in their 20s to 40s with experience using audiobooks. PLS-SEM was employed and the results are as follows. First, information, relaxation, and convenience motivation of audiobooks had a positive impact on user satisfaction. Second, while innovativeness of users had a positive impact on satisfaction, multitasking did not significantly affect satisfaction. Third, satisfaction had a positive impact on continued use and purchase intention. Finally, the continued use intention positively affected the purchase intention. This study is significant as an early study on the use of audiobooks. It is also meaningful in that it explored the process of evolving books in accordance with changes in technology and market demand.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.11
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• pp.5130-5139
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• 2012

The research purposes is apply to the expectation theory for the China's entrepreneurs want to know the relations model among the entrepreneurial activities, performance and growth intentions. According to the study, all of hypothesis have been suggested. In other words, entrepreneurial activities, growth intentions and performance effects and growth intentions show the mediated effect in the research.