• Proceedings of the Korean Vacuum Society Conference
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• 2010.08a
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• pp.47-47
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• 2010

게이트 밸브는 진공 시스템 구성에 있어서 빠질 수 없는 중요한 부품 중 하나로 공간을 구획하여 필요에 따라 자유롭게 진공 상태와 대기 개방 상태가 공존하도록 만들어 주며 진공펌프와 같은 주요 기기들의 탈착 및 교체를 용이하게 해 준다. 게이트 밸브는 열린 상태에서는 저항이 최소화되는 반면 닫힌 상태에서는 마치 마구리 플랜지로 막은 것처럼 완벽한 차단이 요구된다. 일반적으로 게이트 밸브 상용제품은 개스킷이 닿는 밸브 시트가 한쪽에만 마련되어 있으므로 디스크 기계구조가 충분한 압력을 발휘하지 못한다면 어느 쪽이 대기압인가에 따라 디스크를 미는 힘의 크기가 변하여 기밀특성이 달라질 수 있다. 따라서 게이트 밸브의 누설검사는 순방향과 역방향 모두에 대해 시행해야 한다. 양방향 누설검사를 위해 한쪽 밸브 공간을 배기하고 반대쪽 공간에 헬륨을 뿌리는 작업을 교대로 하려면 배기시간의 단축과 신속한 잔류 헬륨기체 제거가 필수적이다. 게이트 밸브 제조 공장에서 상품을 출하하기 위한 시험검사라는 것을 전제로 합리적인 시간 내에 정확한 누설검사를 일관성 있게 할 수 있는 적절한 누설검사 시스템을 설계하고 측정절차를 상용 게이트 밸브에 대해 적용해 보았다.

• Asia Marketing Journal
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• v.4 no.4
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• pp.1-27
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• 2002

본 연구는 Critical Incident Technique(CIT)를 이용하여 음식점에서 서비스 실패를 야기하는 결정적인 사건과 서비스 실패/복구수준과의 관계를 고찰해 보았다. 이와 더불어 불만족한 고객을 만족한 고객으로 전환시키는 데에 중요한 역할을 하는 고객이 바라는 복구와 점포 개선사항을 추가로 제시함으로써 실용적인 마케팅 접근을 시도하였다. 본 연구에서는 고객 불만족 원인이 서비스상품의 결함에 대부분 기인한다는 Hoffman et al. (1995)과 Tax et al. (1998)의 결과와는 달리 서비스 실패를 일으키는 주원인은 서비스제공자에게 있다는 흥미로운 결과를 얻을 수 있었다. 그 동안 국내의 많은 서비스관련 연구들이 서비스 만족과 불만족에 대해 양적 (quantitative)으로 접근한 것과는 달리 본 연구는 질적(qualitative) 접근을 시도하였다. 또한 본 연구는 CIT를 이용한 최초의 서비스 복구에 대한 연구이며, 기존의 연구들이 단순히 서비스 실패의 유형을 범주화하고 복구의 종류를 알아보는 것에 그치고 있는 데 반해 본 연구에서는 고객이 바라는 복구종류와 서비스 제공자의 개선 사항, 서비스 실패를 경험한 고객들의 구전활동에 관한 조사결과와 전략적 시사점도 함께 제시함으로써, 일선 관리자들이 본 연구의 결과를 기업의 마케팅전략 수립에 효과적으로 활용이 가능하다는 점에서 그 의의가 크다고 할 수 있다.

• 한국벤처창업학회:학술대회논문집
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• 2023.04a
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• pp.11-13
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• 2023

대기업 등을 비롯한 중소기업들은 여러 광고 매체를 이용해 자사의 상품이나 브랜드 이미지를 홍보하는 것 이외에 유튜브와 같은 온라인 동영상 서비스 플랫폼에서 제품이나 서비스를 동영상으로 제작하여 다채로운 방법으로 가공, 소개하며 마케팅 효과를 극대화하고 있다. 이는 기업의 제품 및 서비스의 동영상 마케팅이 소비자들에게 어떤 영향을 미치고 직접적인 매출과 상관관계가 있는지를 이미 파악하고 접근하고 있다는 증거이다. 상대적으로 소상공인들은 동영상의 필요성에 대한 인식이 부족한 상태이다. 이에 유튜브와 같은 온라인 동영상 서비스 플랫폼에서 효과적으로 제품 및 서비스에 대해 관심과 흥미를 불러 일으키기 위해 동영상 마케팅을 시행하고자 할 때 동영상은 어떤 요소들이 충족되어야 하는지를 연구하려고 한다. 그리고 정확하게 동영상의 어떤 요소들이 소비자들의 구매 욕구를 상승시키는지와 같은 소비자들의 구매 행동 부분에 밀접한 영향을 미치는 동영상의 요소들에 대해 연구하고자 한다. 소비자들이 느끼는 구매 의지에 영향을 미치는 동영상의 요소들을 역설적으로 소상공인들에게 영상의 필요성을 인식시키기 위함이다.

• Journal of Intelligence and Information Systems
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• v.18 no.4
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• pp.19-42
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• 2012

Consumer consumption patterns are shifting rapidly as buyers migrate from offline markets to e-commerce routes, such as shopping channels on TV and internet shopping malls. In the offline markets consumers go shopping, see the shopping items, and choose from them. Recently consumers tend towards buying at shopping sites free from time and place. However, as e-commerce markets continue to expand, customers are complaining that it is becoming a bigger hassle to shop online. In the online shopping, shoppers have very limited information on the products. The delivered products can be different from what they have wanted. This case results to purchase cancellation. Because these things happen frequently, they are likely to refer to the consumer reviews and companies should be concerned about consumer's voice. E-commerce is a very important marketing tool for suppliers. It can recommend products to customers and connect them directly with suppliers with just a click of a button. The recommender system is being studied in various ways. Some of the more prominent ones include recommendation based on best-seller and demographics, contents filtering, and collaborative filtering. However, these systems all share two weaknesses : they cannot recommend products to consumers on a personal level, and they cannot recommend products to new consumers with no buying history. To fix these problems, we can use the information which has been collected from the questionnaires about their demographics and preference ratings. But, consumers feel these questionnaires are a burden and are unlikely to provide correct information. This study investigates combining collaborative filtering with the centrality of social network analysis. This centrality measure provides the information to infer the preference of new consumers from the shopping history of existing and previous ones. While the past researches had focused on the existing consumers with similar shopping patterns, this study tried to improve the accuracy of recommendation with all shopping information, which included not only similar shopping patterns but also dissimilar ones. Data used in this study, Movie Lens' data, was made by Group Lens research Project Team at University of Minnesota to recommend movies with a collaborative filtering technique. This data was built from the questionnaires of 943 respondents which gave the information on the preference ratings on 1,684 movies. Total data of 100,000 was organized by time, with initial data of 50,000 being existing customers and the latter 50,000 being new customers. The proposed recommender system consists of three systems : [+] group recommender system, [-] group recommender system, and integrated recommender system. [+] group recommender system looks at customers with similar buying patterns as 'neighbors', whereas [-] group recommender system looks at customers with opposite buying patterns as 'contraries'. Integrated recommender system uses both of the aforementioned recommender systems to recommend movies that both recommender systems pick. The study of three systems allows us to find the most suitable recommender system that will optimize accuracy and customer satisfaction. Our analysis showed that integrated recommender system is the best solution among the three systems studied, followed by [-] group recommended system and [+] group recommender system. This result conforms to the intuition that the accuracy of recommendation can be improved using all the relevant information. We provided contour maps and graphs to easily compare the accuracy of each recommender system. Although we saw improvement on accuracy with the integrated recommender system, we must remember that this research is based on static data with no live customers. In other words, consumers did not see the movies actually recommended from the system. Also, this recommendation system may not work well with products other than movies. Thus, it is important to note that recommendation systems need particular calibration for specific product/customer types.

• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.435-447
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• 2016

In the 21st century, the phenomenon of interaction in between fine art and design has become more increasingly prevalent. In this paper, the author has analyzed the major works of Spanish artist Eva $Armis{\dot{e}}n$ on a cultural criticism perspective, and has proposed a framework for a deeper understating of the artworks, which reflected the characteristics of contemporary art and culture such as deterritorialization of art and design. As a result, it has been found that the main theme of her artworks is about preferred attitude of a human being in relationship with others, unlike daily lives or innocence of childhood which are well-known subjects to the public. Her main female character could have been formed by blending all of her aesthetic reason, and characteristics of this era and cultural elements. It means that the area where the public enjoys the sense of beauty have been extending from the area of the beautiful to the beauty of universality. It has been found that deterriorialization phenomena, which is a characteristic of post-modern art and design work to dismantle an existing order, the repression, appeared in her work. However, several research areas of her works such as relationship between text and image or formative elements or aphorism etc. still have remained to be solved.

• Archives of design research
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• v.19 no.1 s.63
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• pp.263-272
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• 2006

People's values as well as their behavioral form of using a product are changing due to the rapid introduction of diverse cultures and the Five-day workweek system. The single and the married are the subjects of this study: it is aimed to evaluate and analyze, thus grasping their difference in behavioral form of using a washing machine, the main factors they consider to be important when purchasing one, and the level of satisfaction they get from their own washers. A questionnaire was used as a tool for a better Factor Analysis and Frequency Analysis research. There were 6 essential factors which unmarried people take into consideration when purchasing a washer: economical efficiency, measure of capacity, design, type, brand and advertising, function. On the other hand, economical efficiency, convenience, measure of capacity, function, and type was what the married thought would be the 6 central factors.

• International Commerce and Information Review
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• v.13 no.3
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• pp.301-323
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• 2011

There have been 20 cases of trade disputes related to zeroing in WTO. In these day, it was judged that the use of zeroing in the calculation of dumping margin is against ADA. Recently, WTO decided in favor of Korea in regards to Korea's stainless steel products on January, 2011. There finally was a high possibility of zeroing being changed. In December 2010, the American government announced it would revise zeroing system through an federal register. Many researchers, such as Linsey and Ikenson(2000), William W. Nye(2009) already clarified through empirical analysis that no use of zeroing leads to a large decline in the margin of dumping. If zeroing is abolished in the future, the margin of dumping imposed on Korea's stainless steel will drop sharply. According to this empirical study, the margin of dumping in 6 stainless steel among 12 products commodities subject to Anti Dumping regulation from US reduced below de-minimis or 3%. These stainless steel is likely to be excluded from the Anti Dumping regulation through review investigation and Korea's export of steel to America is expected to be increased steeply in the future.

• The Journal of the Korea Contents Association
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• v.13 no.6
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• pp.108-115
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• 2013

This study focused on whether the existence and type of originals have any effects on box-office performance of the movie. Cultural products have characteristics of experience goods of which consumers hardly know the value of the products before they actually experience the products. To reduce the uncertainty, movie producers may want to use existing contents already made for other type of cultural products, which is generally called of One Source Multi Use. Using 381 Korean box-office data during January 2010 and September 2012, this study found that, first, the existence of original affects positively the movie's box office performance, second, the fiction based original has a positive effect on the movie's box office performance while cartoon and movie/TV based originals do not, and third, the movie type(commercial movie) positively moderates the relationship between fiction based original and movie performance. This study showed that box-office performance is not only affected by the characteristics of the movie itself, but also affected by other conditions including the use of existing originals created for other purposes.

• Journal of Distribution Research
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• v.12 no.4
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• pp.27-47
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• 2007

Using survey data and the Heckit model that adequately controls the sample selection bias, we analyze shoppers expenditure through two major emerging shopping channels: Internet shopping and TV home shopping channels. Age, Internet experience, daily Internet usage, the number of computers are factors that affect the ratio of consumers' expenditure through Internet shopping relative to the expenditure through TV home shopping. Shopping frequency which represents the shoppers' incentives to reduce transaction costs also has a positive effect on the proportion of shoppers' expenditure through the Internet shopping. Shoppers' perceptions of convenience, reliability, speed, and diversity are also shown to affect shoppers' relative expenditure ratio through Internet shopping. In contrast, shoppers' perception of prices does not seem to affect their purchasing behavior.

• Environmental and Resource Economics Review
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• v.25 no.3
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• pp.351-376
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• 2016

This study examines optimal emission taxes and welfares in mixed duopoly markets where public and private firms produce differentiated goods and emit pollutions. Both comparing quantity and price competitions and comparing simultaneous and simultaneous games provides the followings findings: First, irrespective of competition modes between quantity and price competitions or simultaneous and sequential games, the optimal emission tax is always lower than marginal environmental damage. Second, emission tax under private leadership is the highest in quantity competition while that under public leadership is the highest in price competition. Third, environmental damage under Cournot and private leadership is worsened in quantity competition while that under public leadership is worsened in price competition. Finally, welfare under Bertrand and public leadership is improved in price competition while that under private leadership is improved in quantity competition.