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Joonghak Lee(Joonghak Lee),Youngwoo Kim(Youngwoo Kim),Jisang Kang(Jisang Kang) The International Academy of Global Business and T 2023 The International Academy of Global Business and T Vol.19 No.1
Purpose - Digital transformation is the key to success for recent multinational corporates. Ample studies have paid attention to the effectiveness of digital transformation and usage of advanced technology, but there is a lack of research related to how to prepare for digital transformation. The main purpose of this study is to organize specific case of preparation for digital transformation from a management perspective. In addition, the empirical results are presented to examine the impact of the preparation of the digital transformation. Design/Methodology/Approach - The study first reviews previous literature about digital transformation to organize antecedents, theory, contingency, and outcomes. Second, based on the resource-based view, a case is explained the company’s context, processes, and methodology. Lastly, empirical analysis is conducted to investigate how effective the digital transformation is prepared, and results are presented with data from 50 affiliations and 1,059 employees. Findings - This study finds the key to successful digital transformation is well-prepared talent, and suggests how multinational corporates can be ready for talent selection and development. Furthermore, readiness in digital transformation in talent varies by industry, company, and employee characteristics. Then, the study implies successful digital transformation should consider a contingency. Research Implications - The current study expands the knowledge on digital transformation by suggesting an actual case of South Korean multinational corporations, which allows researchers and practitioners to understand the process and methodology. Second, this research extended the discussion of digital transformation to talent selection preparation since previous literature has focused only on recent technology. Lastly, the study introduces the empirical results of preparation for digital transformation and helps practitioners initiate digital transformation in their organizations.
Younghwa Lee,Sukki Yoon,Youngwoo Lee,Marla B. Royne 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7
We study liberals and conservatives in the United States and Korea to see how they respond to charity advertising that appeals to either equality or proportionality. The findings robustly demonstrate that in both countries, liberals respond more favorably to equality appeals, but conservatives respond more favorably to proportionality appeals. Study 1, conducted in the United States, finds that liberals find equality appeals more effective, but conservatives find proportionality appeals more effective. Study 2, conducted in Korea, shows that liberals (conservatives) estimate that they are more (less) likely to receive rewards for donating when charity advertising uses equality rather than proportionality appeals.
XR 콘텐츠 UI/UX 평가를 위한 VR 스마트 팩토리 교육훈련 콘텐츠 제작
이영우(YoungWoo Lee),임익수(EekSu Leem),이수민(Su Min LEE),김현식(Hyun Sik Kim),강민구(Mingoo Kang),이창교(Chang-kyo Lee),서정욱(Jeongwook Seo) 한국정보통신학회 2021 한국정보통신학회 종합학술대회 논문집 Vol.25 No.2
이 논문에서는 제조 분야에 디지털 트윈 기반 XR 콘텐츠의 UX/UI 디자인 및 사용성 평가를 위하여 범용적인 콘텐츠 소프트웨어와 달리, HDM의 의존성이 큰 XR 콘텐츠의 특성을 반영하기 위해, 공정수행작업 시나리오에 맞춘 XR 콘텐츠를 제작하였다. XR 콘텐츠의 공정수행 작업 시나리오를 수행하기 위해 Qculus Quest2라는 HMD장비를 사용하였으며, 콘텐츠 제작은 Unity 엔진[1]과 SteamVR Plugin을 통해 제작되었다. In this paper, VR smart factory XR content tailored to process execution scenarios was produced to reflect the characteristics of XR content, which is highly dependent on HDM, unlike general-purpose content software for UX/UI design and usability evaluation of digital twin-based XR content in manufacturing. HMD equipment called Qculus Quest2 was used to perform the process execution task scenario for XR content, and content production was made through Unity Engine and Steam VR Plugin.
Lee, Sung Kyun,Kim, Sang Doo,Kook, Minsoo,Lee, Ha Young,Ghim, Jaewang,Choi, Youngwoo,Zabel, Brian A.,Ryu, Sung Ho,Bae, Yoe-Sik The Rockefeller University Press 2015 The Journal of experimental medicine Vol.212 No.9
<P>Lee et al. find that phospholipase D2 deficiency increases survival and decreases organ damage during experimental sepsis in mice which could be reversed with a CXCR2 antagonist. Thus, targeting PLD2 may offer therapeutics for septic patients.</P><P>We determined the function of phospholipase D2 (PLD2) in host defense in highly lethal mouse models of sepsis using PLD2<SUP>−/−</SUP> mice and a PLD2-specific inhibitor. PLD2 deficiency not only increases survival but also decreases vital organ damage during experimental sepsis. Production of several inflammatory cytokines (TNF, IL-1β, IL-17, and IL-23) and the chemokine CXCL1, as well as cellular apoptosis in immune tissues, kidney, and liver, are markedly decreased in PLD2<SUP>−/−</SUP> mice. Bactericidal activity is significantly increased in PLD2<SUP>−/−</SUP> mice, which is mediated by increased neutrophil extracellular trap formation and citrullination of histone 3 through peptidylarginine deiminase activation. Recruitment of neutrophils to the lung is markedly increased in PLD2<SUP>−/−</SUP> mice. Furthermore, LPS-induced induction of G protein–coupled receptor kinase 2 (GRK2) and down-regulation of CXCR2 are markedly attenuated in PLD2<SUP>−/−</SUP> mice. A CXCR2-selective antagonist abolishes the protection conferred by PLD2 deficiency during experimental sepsis, suggesting that enhanced CXCR2 expression, likely driven by GRK2 down-regulation in neutrophils, promotes survival in PLD2<SUP>−/−</SUP> mice. Furthermore, adoptively transferred PLD2<SUP>−/−</SUP> neutrophils significantly protect WT recipients against sepsis-induced death compared with transferred WT neutrophils. We suggest that PLD2 in neutrophils is essential for the pathogenesis of experimental sepsis and that pharmaceutical agents that target PLD2 may prove beneficial for septic patients.</P>
Performance Analysis of Software Architectures with Real-time Kernel Patches for the Rescue Robot
Youngwoo Lee,Myeong Eon Jang,Jun Kim,Yong Woon Park 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10
This paper introduces software architectures of the Rescue Robot that lifts and moves wounded soldiers in battle fields or hospitals. Since the Rescue Robot interacts with humans, the robot needs a real-time operation for human safety. Moreover, it is necessary that a large number of calculations and various sensing data to move the soldiers without any damages. One of challenging problems of designing the robot software architecture is that a large number of calculations and data would disturb to decrease a response time taken until robot reacting from user’s commands or emergency sensing data. The Rescue Robot uses Linux with real-time kernel patches as a real-time operating system and EtherCAT as a real-time network. We test three kinds of software architectures, Linux, Xenomai, and RTAI, for the Rescue Robots about the time taken until output commands are sent to joint motors just after the sensing data or input commands are delivered. Furthermore, we suggest a method to handle urgent commands or data quickly with a slightly modified kernel and a kernel module that reduces the time dramatically. This paper also analysis the difference of the real-time kernel patches.
The External Knowledge Utilization and Radical Innovation in Korea Electronic Industry
Lee, Youngwoo,Kim, Jae-Jin,Chang, Sul-Ki East Asia Business Economics Association 2018 East asian journal of business management Vol.6 No.4
Purpose - This study investigates the moderation effect of internal factor, a firms size, on the external knowledge sourcing strategy and its effectiveness in generating radical innovation. We incorporate concepts of breadth and depth as two measures to gauge the degree of openness in firms external search Research design and methodology - The dependent variable in the regression model is the percentage of innovative sales and therefore, Tobit regression is employed for estimating significant factors affecting on the ratio of first-to-market by breadth and depth in external knowledge, internationalization, and size. Results - The results show that the external knowledge, in terms of both breadth and depth, has a positive relationship with radical innovation. However internationalization as external knowledge resources is not statistically accepted. Firm size has moderating effect on innovation negatively only in case of using external knowledge resources to a high degree. Conclusions - Firms obtain external information mostly from customers, competitors, and suppliers etc. empirical knowledge in terms of scope and intensity is an important contributor to innovation. And intensity use of external knowledge and information resources can work in favor of smaller firms rather than larger ones. Internationalization seems to have little effect on innovation but it requires further researches with clear criteria and more data.