In vivo evidence on the functional variation within fatty acid synthase gene associated with lipid metabolism in bovine longissimus dorsi muscle tissue

Oh, Dong-yep,Nam, Insik,Hwang, Sehwan,Kong, Hongsik,Lee, Honggu,Ha, Jaejung,Baik, Myunggi,Oh, Man Hwan,Kim, Songmi,Han, Kyudong,Lee, Yoonseok 한국유전학회 2018 Genes & Genomics Vol.40 No.3

<P>In Korean cattle, intramuscular fat (IMF), or marbling, of the longissimus dorsi muscle (LM) cross section is one of the most important indicators of beef quality and are influenced by environmental and genetic factors. This study was to evaluate the effect of SNPs on the beef quality in Korean cattle for functional studies, such as site-directed mutagenesis based on bovine adipocytes. The fatty acid synthase (FASN) gene plays an important role in lipogenesis. FASN is an essential metabolic and multifunctional enzyme in fatty acid synthesis. Several studies have reported that SNPs g.841G, g.16024A, g.16039T, and g.17924G have a significant impact on marbling scores in Korean cattle and Japanese Black cattle population. These SNPs are located in transcription factor binding sites, the beta-ketoacyl reductase, and thioesterase domains. Our results revealed that the g.17924 A > G SNP is located in the thioesterase domain of the FASN protein, and changes from polar, neutral, and hydrophilic to nonpolar, aliphatic, and hydrophobic, respectively. In in vivo LM tissue of Korean cattle, the g.17924A > G SNP has an effect on increasing fat deposition. Therefore, g.17924A > G SNP could be a causal mutation for increasing fat deposition in Korean cattle LM tissue.</P>

The Effect of Electronic Word-of-Mouth (eWOM) in Mobile Application Downloads : An Empirical Investigation

Sehwan Oh,Hyunmi Baek,JoongHo Ahn 한국경영정보학회 2012 한국경영정보학회 학술대회논문집 Vol.2012 No.1

Predictive value of video-sharing behavior: sharing of movie trailers and box-office revenue

Oh, Sehwan,Baek, Hyunmi,Ahn, JoongHo Emerald (MCB UP ) 2017 INTERNET RESEARCH Vol.27 No.3

<P>Originality/value - Focusing on the sharing features of video-sharing social media websites, this study contributes to enhancing our understanding of the predictive power of consumers' video-sharing and expanding current research on eWOM and social influence.</P>

The Effects of Social Media on Music-induced Tourism: A Case of Korean Pop Music and Inbound Tourism to Korea

Oh, Sehwan,Ahn, JoongHo,Baek, Hyunmi The Korea Society of Management Information System 2015 Asia Pacific Journal of Information Systems Vol.25 No.1

With the rapid spread of social media, video-sharing social media like YouTube has emerged as a consumption and distribution channel for entertainment goods such as music videos and movie trailers. In tourism research, there has been a lot of research of how the visual media such as movies and soap operas induced tourism. However, no studies have attempted to examine the role of social media as a music consumption channel and its impact on tourism. Expanding a body of media-induced tourism, we analysed the impact of video-sharing social media on music-induced tourism with a case of Korean pop music and inbound tourism to Korea. Developing a Web-crawler, we collected YouTube users' comments data on 166 Korean pop music video clips which were released from 2009 to 2012 with over 1 million view counts. Controlling many of the determinants of tourism and analysing country-by-country impact of YouTube comments with the panel data, we found that engagement of Korean pop music video clips on YouTube is a significant predictor for the flow of inbound tourists to Korea.

The Effects of Social Media on Music-induced Tourism : A Case of Korean Pop Music and Inbound Tourism to Korea

Sehwan Oh,JoongHo Ahn,Hyunmi Baek 한국경영정보학회 2015 Asia Pacific Journal of Information Systems Vol.25 No.1

크라우드펀딩 성과

오세환(Sehwan Oh),김한구(Hangu Kim) 한국인터넷전자상거래학회 2017 인터넷전자상거래연구 Vol.17 No.1

The purpose of this study is to understand the determinants for successful crowdfunding from the perspectives of both social capital and electronic word-of-mouth. This research analyzes 289 crowdfunding projects on Tumblbug, a representative reward-based crowdfunding platform in Korea. Analysis results show that social interaction ties in crowdfunding projects are positively associated with electronic word-of-mouth(eWOM), while eWOM is positively associated with crowdfunding performance. In addition, the results find that eWOM has a mediation effect on the relationship between social interaction ties and crowdfunding performance.

밀라노 국제 가구 박람회를 통해본 의자 소재 변화에 대한 분석

오세환 ( Oh Sehwan ),박영순 ( Park Young-soon ) 한국디자인트렌드학회 2009 한국디자인포럼 Vol.25 No.-

의자를 디자인함에 있어서 소재란 매우 중요한 요소 중의 하나이다. 이는 인체와 직접 접촉해야 하기 때문이기도 하지만 사용자의 제출을 지탱해야 하는 구조적인 측면까지도 고려해야 하기 때문이다. 본 연구는 의자디자인의 소재가 크게 변화된 2000년대 이후 최근 9년 동안의 의자디자인의 소재변화의 특성을 분석하여 의자디자인을 구현하는데 활용하기 위한 기초 자료를 제공하려는데 그 목적이 있다. 연구의 범위는 2000년부터 2008년의 대표적 가구 디자인 전시인 밀라노 국제 가구 박람회의 디자인 관에 출시된 회사 중 1차 대상 선정기준인 평판등급 1,2위의 회사와 2차 대상 선정기준을 거친 72개의 회사의 의자 386개를 추출하였다. 분석을 위해 의자의 구조를 구조재, 충진재, 표면재로 나누고 재료의 분류 기준을 마련하여 소재를 선별하였다. 이렇게 선별된 소재는 총 44가지로 이를 대분류인 목재, 금속, 화학, 섬유, 가죽으로 나누어 분석하였다. 의자디자인에 사용되는 구조재료는 금속이 가장 많았으며, 충진 재료에는 화학재가 압도적으로 많은 수를 차지하고 있었다. 마감 재료에서는 섬유와 가죽이 대표적인 소재였으며, 금속재에서는 크롬이 많이 사용되었다. 본 연구 결과를 토대로 앞으로 근 미래의 의자디자인의 소재는 구조재를 중심으로 한 다양한 화학재료들이 발전할 것으로 예상한다. One of the most essential components in chair design is the material being used. This defines the practicality, comfortableness and the supportability of the chair. Therefore the purpose of this study is to analyze the material trend of the chair through the Milan International Furniture Fair (which is the most renowned International Furniture Fair) from the year 2000 to 2008. For this study, 386 chairs have been chosen from 72 companies according to its popularity and ranking records. For a thorough analysis of the materials the chair contains,has been classified into structures, filler and surface materials. The total materials used in contemporary chair design have been assorted. This assortment has been narrowed down to 44 different types of material, which have been categorized into wood, metal, chemical, textile and leather. Metal is mainly used as the structure of the chair design and the majority of the filler materials consist of chemicals. Leather and fiber were the most popular materials that are used in a finishing product and chrome is mostly used as a finishing material for metal. The analysis of International chair design verified that chemical and metal are the most common materials used in contemporary chair design.

혁신유형과 수출성과 간 관계에 대한 탐색적 연구

오세환(Sehwan OH) 한국무역상무학회 2021 貿易商務硏究 Vol.90 No.-

기술혁신 활동이 경영성과 제고에 중요한 영향을 미침에 따라 수출기업의 혁신 활동과 수출성과 간 관계에 대한 관심도 높아지고 있다. 혁신유형과 수출성과 간 관계에 대한 선행연구가 제한적인 상황에서 본 연구는 혁신유형 중 폐쇄형과 개방형 혁신을 구분하고 개방형 혁신은 내향형 혁신과 외향형 혁신으로 세분화하는 한편 중소기업과 대기업, 고기술 산업과 저기술 산업 등의 차이를 고려하여 혁신유형과 수출성과 간 관계에 대한 탐색적 분석을 시도한다. 2006∼2018년 동안 2,958개 제조업 수출기업을 대상으로 패널데이터 분석을 수행한 결과, 폐쇄형 및 개방형 혁신은 대체적으로 기업규모 및 기술수준을 막론하고 수출성과와 긍정적인 관계가 있는 것이 관찰되나 개방형 혁신 중 외향형 혁신은 수출성과와의 관계에서 통계적으로 유의하지 않은 것으로 나타난다. 국내 제조업 수출기업들의 개방형 혁신 대비 폐쇄형 혁신에 대한 의존도가 상대적으로 높게 나타나고 있는 가운데 4차 산업혁명 시대에 개방형 혁신을 활성화하기 위한 노력이 요구된다. As activities of technological innovation have a significant impact on improving firm performance, researchers pay more attention to the relationship between innovation activities and export performance. However, previous studies show conflicting analysis results on the relationship between innovation types and export performance, and research on differences by company size and technological intensity is also limited. This study distinguishes between closed innovations and open innovations, while open innovations are subdivided into outside-in and inside-out innovations. Considering the differences between SMEs and large companies, high-tech industries and low-tech industries, this study attempts to explore the relationship between innovation types and export performance. As a result of conducting panel data analysis on 2,958manufacturing export companies from 2006 to 2018, this research shows that closed and open innovations generally have a positive relationship with export performance regardless of company size and technological intensity. On the other hand, among open innovations, inside-out innovations are not statistically significant in relation to export performance, which is observed in both SMEs and large companies. While domestic manufacturing export companies are relatively dependent on closed innovation compared to open innovation, efforts to revitalize open innovation are required in the era of the 4th industrial revolution.

크라우드펀딩 성공요인: 사회적 상호작용과 목표 달성 동기요인을 중심으로

오세환 ( Sehwan Oh ),백현미 ( Hyunmi Baek ) 한국정보시스템학회 2016 情報시스템硏究 Vol.25 No.4

연구목적 크라우드펀딩 프로젝트의 성공요인에 대해 다양한 연구들이 시도되어 왔으나 아직까지도 국내외 연구는 제한적인 상황이다. 이에 따라 본 연구는 크라우드펀딩 프로젝트 커뮤니티를 둘러싼 정보기반(information-based) 및 행위 기반(behavior-based)의 사회적 상호작용뿐만 아니라 펀딩 모금액 달성이라는 공동의 목표가 프로젝트 성공에 미치는 영향에 대해 분석하고자 한다. 연구설계/방법론/접근법 본 연구를 위해 2016년 2월부터 8월까지 국내 대표적인 보상형 크라우드펀딩 플랫폼, 텀블벅(Tumblbug)에서 펀딩에 성공한 154개 크라우드펀딩 프로젝트들의 패널 데이터를 수집하였다. 이를 바탕으로 정보 기반의 사회적 상호작용 변수(정보 공유 횟수)와 행위 기반의 사회적 상호작용 변수(후원자수)가 크라우드펀딩 프로젝트 성공에 미치는 영향을 분석하였다. 또한 목표 달성 동기요인이 사회적 상호작용과 크라우드펀딩 프로젝트 성공 간의 관계를 조절하는지 살펴보았다. 결과 본 연구 결과에 따르면 정보 기반의 사회적 상호작용 및 행위 기반의 사회적 상호작용이 크라우드펀딩 프로젝트 성공에 긍정적으로 유의한 영향을 미치는 것으로 나타났다. 또한 목표 달성 동기요인이 정보 및 행위 기반의 사회적 상호작용과 크라우드펀딩 프로젝트 성과 간의 관계를 조절한다는 것을 확인하였다. Purpose As crowdfunding is a relatively recent phenomenon, determinants of successful crowdfunding with empirical data have been under-researched. Consequently, we examine the role of informationand behavior-based social interaction on the performance of crowdfunding projects, while investigating the motivational factor of goal achievement. Design/methodology/approach From February to August 2016, we collected panel data on 154 crowdfunding projects, which completed fundraising successfully on Tumblbug, a reward-based crowdfunding platform in Korea. In this study, we examine the roles of information-based social interaction (e.g., sharing information on a crowdfunding project) and behavior-based social interaction (e.g., following other investors` behavior) on successful crowdfunding. Additionally, we investigate whether the motivation of goal achievement moderates the relationship between social interaction and performance of crowdfunding projects or not. Findings We find that the number of times a crowdfunding project is shared has a positive influence on its performance, as does the number of project backers. Furthermore, we confirm that goal achievement motivation moderates the effects of information- and behavior-based social interaction on the performance of crowdfunding projects.

DFSS 기법을 활용한 등속조인트 정비성 개선에 관한 연구

오세환(Sehwan Oh),이호석(Hosuk Lee),이제동(Jedong Lee) 한국자동차공학회 2017 한국자동차공학회 학술대회 및 전시회 Vol.2017 No.11

The CV joint is a main part of vehicle which can transmitting torque to wheel. A circlip is a kind of metal spring with open ends which can be installed into a groove to prevent lateral movement. In this study a nonlinear finite element analysis model is developed to simulate the disengaging process of a circlip connecting the drive shaft and the inner race. The main factors affecting the disengage load are the circlip diameter, the groove diameter of an inner race, and the ramp angle. The optimum specification was selected by using the DFSS technique.