• KDI북한경제리뷰
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• v.21 no.1
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• pp.3-11
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• 2019

• KDI북한경제리뷰
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• v.21 no.3
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• pp.72-75
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• 2019

• Journal of the HCI Society of Korea
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• v.9 no.2
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• pp.53-59
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• 2014

The objectives of this research is to compare UX elements influencing the satisfaction of users in Korea and North America according to product types of mobile commerce services, to determine UX INDEX suitable for each type of service, and to derive positively influencing UI factors through analyzing the relationship between UX INDEX and UX design detail factors. This research showed that there was difference in perceived reliability according to selling product types and there was difference in both perceived usefulness and reliability according to users in Korea and North America. Also, this research found out that, in analysis of relationship between UX INDEX and UX design detail factors, UI factors to understand a service structure generally showed close relationship but factors such as troubleshooting and help showed difference between users in Korea and users in North America.

• Journal of Digital Convergence
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• v.12 no.11
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• pp.209-214
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• 2014

Despite the recession of the global market, the domestic electronic appliance companies dominated TV market in North America. They took both the premium and mid-priced product market and achieved both profitability and volume due to strong product competitiveness and brand power. Despite doing well in the North American market, the domestic TV manufacturers are worried about product development, marketing and sales strategies to remain the continuous competitiveness in the TV market. This study proposes the a sales prediction model of electronic appliances using sales data of S company from the North American market. We develop the sales prediction models based on multiple regression analysis and artificial neural network and compare two models. Especially, this study analyzes the relevance between the TV sales and TV main features in order to improve the price competitiveness or improve the value of TV products.

• Journal of Digital Convergence
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• v.13 no.9
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• pp.177-182
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• 2015

The brand and product awareness of Korean electronics companies in the North American market has grown significantly and North American consumers has been recognized as an innovative technology products good performance of Korean electronics appliances. The consumer need of energy saving has led to a rise in market share because Korean electronics appliances have the excellence in energy saving aspects. The expansion of smartphones and mobile devices and the development of smart grid technology can affect electronics market. Domestic companies are continuously develop new product to provide consumers convenient with a variety of additional features combined consumer products. This study proposes a convergence model for sales prediction of electronic appliances using sales data of A company from the North American market. We develop the convergence model for sales prediction based on based on artificial neural network and genetic algorithm. In addition, we validate the superiority of the proposed convergence model by comparing the prediction performance of traditional prediction models.

• Journal of Navigation and Port Research
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• v.29 no.5 s.101
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• pp.421-429
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• 2005

Traditionally, determination of the optimal containership size is the most important factor for competitiveness of shipping companies in the shipping market. Under this environment, many shipping companies and researchers have studied about it. The objective of this research is to determine the optimal containership size using a total shipping cost in the main trunk lines. Total shipping cost is calculated at the ground of capital costs, vessel operation costs, voyage costs, port charges and miscellaneous costs for 'Europe-Far East', 'Far East-North America' and 'Europe-Far East-North America' services. Analysis results showed that the 6,500TEU containership is an optimal size on the 'Europe-Far East' and 'Europe-Far East-North America' services. And the 8,200TEU containership is an optimal size on the 'Far East-North America' service. Moreover, if the larger containerships over 8,200TEU class start operation afterward, it would be less competitive in the analyzed 3services.

• Journal of Korean Library and Information Science Society
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• v.51 no.4
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• pp.231-247
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• 2020

As artificial intelligence (AI) has emerged as a promising future technology among the fourth industrial revolution, we are trying to apply artificial intelligence technology across all area of society, including libraries. This study investigated the effects, issues, and implications of artificial intelligence on university library services. As a research method, in-depth interviews were conducted with IT experts of university libraries in North America, and conclusions and discussion were drawn from interview results and related documents. Research results revealed that university libraries in North America were trying to build an infrastructure that facilitates information access and retrieval based on artificial intelligence systems and to provide new services in collaboration with AI research institutes in universities. This study raised issues regarding the expansion of the role of libraries and librarians, privacy, and data quality. It was also discussed that the need for re-education of university librarians to become software engineers who play a role in disseminating knowledge. In addition, this study suggested the investment for the establishment of the information system and an artificial intelligence research center in the library. The study discussed limitations of research due to changes in the research environment and suggestions for future research.

• Korean journal of applied entomology
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• v.56 no.2
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• pp.223-227
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• 2017

The larger black flour beetle, Cynaeus angustus (LeConte) (Diaperinae: Tenebrionidae) is reported for the first time in Korea. C. angustus is economically important as an insect pest in stored products in the Nearctic region, and has been identified in several rice mills in Korea. Taxonomic diagnosis and photographs presenting the morphology of adults and larvae are provided, along with a pictorial identification key to 17 tenebrionid pests detected during quarantine in stored products in Korea.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2017.10a
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• pp.72-75
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• 2017

도시농업 및 커뮤니티에 대한 사회적 관심에 편승하여 근래 도시의 커뮤니티가든(Community Garden)이 주목받고 있다. 북미의 커뮤니티가든은 농작물 생산 위주의 개인텃밭을 포괄한 지역사회의 구성원과 함께 만들어가는 오픈스페이스의 형태로, 화훼 등을 포괄하는 개념으로 간주되고 있다. 본 연구에서는 커뮤니티가든의 발상지인 북미 중에서도 가장 선진적인 사례로 손꼽히고 있는 미국 워싱턴주 시애틀(Seattle)시의 피패치(P-Patch)를 대상으로, 85개의 현장 전수조사를 통하여 공간설계 및 디자인요소를 추출하여 시사점을 도출하였다. 분석결과, 첫째 시애틀 피패치의 일반적인 디자인 구성요소는 기반시설, 지원시설, 휴게시설, 특수시설, 친환경시설 등 다섯 가지 기능으로 대별할 수 있는데, 지원시설로는 공구함(Tool Shed)이나 수전시설(Spigot)이, 친환경시설로는 도마(Cutting Board)나 퇴비함(Compost Bin)이 대부분 설치되어 있다. 둘째, 피패치의 공간구성 및 디자인적 특징으로는 이용자 수요 및 입지적 특성을 반영한 유연한 정원 설계를 들 수 있다. 셋째, 피패치는 다목적형 기능을 겸비한 복합적 공공장소로서 공공의 제도적 지원과 시민운동을 연계하는 기회를 제공하고 있다. 넷째, 지속가능성을 담보하기 위해 다양한 이해관계자(이용자, 코디네이터, 운영진, 전문가, 지역주민, 자원봉사자 등)와의 파트너십 구축, 다양한 재원 조달 방안 모색, 체계적인 모니터링 시스템 구축 및 운영을 지속하고 있다.

• Economic and Environmental Geology
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• v.52 no.6
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• pp.617-626
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• 2019

In this study, we investigated the petrographic characteristics and physical property of the Rock-carved Seated Buddha at Bugmireugam hermitage of Daeheungsa temple in Haenam. The Buddha Statue was carved on micrographic granite, and the rock was composed of the fine quartz encircled by orthoclase. The results of diagnosis for deterioration evaluation have shown a highly damage rate of black contaminants (8.4%) and crack index (6.6). The ultrasonic velocity have detected SW (slightly weathered) grade of weathering coefficient (mean 0.18). Various weathering factor on the surface of the Buddha Statue was affected by precious shelter, and physical property with ultrasonic was directly influenced by the structural characteristics and fissure of host rock.