• Journal of the Korean Society of Propulsion Engineers
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• v.22 no.4
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• pp.125-132
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• 2018

The mechanical ground support equipment of a Korea Space Launch Vehicle-II launch complex is a collection of systems used for transporting, erecting and lowering the launch vehicle. It also provides an interface for supplying propellants. In this paper, compositions, functions and design results of mechanical ground support equipment are introduced. Additionally, the operational concept of each piece of equipment is presented with operation procedure.

• Journal of the Korea Society for Simulation
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• v.24 no.3
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• pp.17-26
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• 2015

A cluster tool used in many kinds of semiconductor processes for improving the performance and the quality of wafers has a simple configuration, but its schedule is not easy because of its parallel processing module, a lack of intermediate buffers, and time constraints. While there have been many studies on its schedule, most of them have focused on full cycles in which identical work cycles are repeated under constant task times. In this research, we suggest strategies of start-up transient scheduling which satisfies time constraints and converges into a desirable steady schedule for full work cycle. The proposed schedules are expected robust under the stationary stochastic task times. Finally, we show that the strategies make schedules enters the desirable steady schedule and robust using the simulation.

• Korea Trade Review
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• v.43 no.2
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• pp.127-157
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• 2018

This paper investigates how blockchain technology which is an innovation technology of the 4th Industrial Revolution has been settled in international trade. FinTech technology is expected to expand because a new remittance method for replacing the letter of credit has been introduced. In addition, since the purchase of individual customers makes international trade increase rapidly, more convenient FinTech technology will stand in a spotlight. Thus, we confirm that cryptocurrency use will increase in order to maintain stability and reduce risk in international transactions. However, since the legal standing of blockchain technology is now insufficient, the slow spread of FinTech technology will be made for a while.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.01a
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• pp.323-324
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• 2021

그 어느 때 보다 한국경제에서 사회경제적시스템의 성공적인 안착이 필요 한 시대이며, 해외 선진사례에서 보듯이 최근 사회경제적시스템에서 고용창출, 소상공인 경제적 활로 개척 등 소상공인의 협동조합의 역할과 중요성이 점점 커지고 있는 실정이다. 이러한 사회경제적망에서 소상공인협동조합의 자원을 위한 중소벤처기업부/소상공인시장진흥공단은 전국 8대 권역(2분소)에 소상공인협동조합을 위한 협업아카데미를 운영 중에 있다. 각 권역별 협업아카데미에서는 컨설팅, 교육, 네트워킹 등 공통 조합지원 프로그램으로 운영하고 있으나, 소상공인시장진흥공단의 정량/정성적 평가에 따르면 각 아카데미별 운영 결과는 상이하게 나타나고 있다. 이는 협업아카데미 운영인력(매니저)의 자질과 업무 수행역량에 따른 상이한 결과로 판단하고 있다. 이에 협업아카데미 운영 인력의 업무적 필요 역량에 관한 연구를 통해 운영인력(매니저)수급과 인력운영에 관한 기준점을 설정하고 효과적이고 생산적인 소상공인협동조합 지원사업을 수행함에 있어 유용한 자료를 제공하고자 한다.

• Journal of Ethics
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• no.94
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• pp.249-275
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• 2014

This study aims to standardize Moral Judgment Test (MJT) for measure the level of moral judgment to apply to Korean society. The questionnaire of MJT was composed of two stories: Worker's Dilemma; Doctor's Dilemma. The procedure of this study was started with translation, making final questionnaire through several times pre-test, survey, then did analyze. The degree of reliability was .669. To verify validity, this study carried 3 kinds of tests as follows: the Order of Preferences, Quasi-simplex Structure, Cognitive-Affective Parallelism. Through these tests, this study showed that Korean-translated version questionnaire of MJT is significant and good base to measure moral judgment.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.269-270
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• 2024

최근 드론 산업의 규모가 커지면서 드론을 다양한 분야에 활용하려는 노력이 커지고 있다. 대규모 환경 모니터링, 재난 관리 등에 사용되기 위해서는 장시간 연속 비행이 필요하지만 드론의 배터리 용량 문제로 인해 사람이 직접 배터리를 교체해 주지 않으면 장시간 비행이 어렵다. 본 논문은 드론이 배터리 충전을 위해 자율적으로 착륙해 충전 후 이륙하는 가로등을 활용한 자율 충전 스테이션'을 제안한다. 단순한 무선 충전이 아닌 드론이 자율 비행을 통해 스테이션에 착륙하고 스테이션의 초음파 센서를 통해 착륙이 감지되면 스테이션의 송신부에서 전력을 공급해 드론의 무선 충전이 가능하다. 또한 스테이션의 구조를 원뿔형으로 만들어 드론이 스테이션의 중앙에 정확히 안착되도록 하였다. 자율 드론 충전 스테이션을 통해 배터리 용량 문제를 새로운 방식으로 해결할 수 있고, 업무에 필요한 인력을 최소화함으로서 드론 관제, 환경 모니터링 등 드론을 활용하는 다양한 분야에 도움을 줄 수 있을 것이다.

• Journal of Chest Surgery
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• v.43 no.6
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• pp.758-763
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• 2010

In current era, thoracic endovascular aortic repair (TEVAR) has gained popularity. But, it bears the risk of serious complications such as treatment failure from endoleak, retrograde aortic dissection caused by injury of aortic wall at landing zone, or aortic rupture resulting from stent graft infection. We report two cases of surgical repair of retrograde aortic dissection after TAVAR applied to acute Stanford type B aortic dissection or traumatic aortic disruption.

• Journal of Digital Convergence
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• v.10 no.10
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• pp.147-154
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• 2012

I made an analysis on the case of Kakao Talk, which is Korean top mobile instant messaging service, to find the growth potential of Korean Social Network Service in the global market. First, I found that unlike the PC messenger services, Kakao Talk is not only unlimited in mobile IM service provider but also has evolving into a social network service firm. Second, attempts with a variety of social services such as photo-based Kakao Story and Marketing Platform for Mobile Game, Kakao Talk successfully landed as a SNS company. Third, with 'Plus Friends' Service, soon-to-be launched Avatar and App Market Service, Kakao Talk is evolving into social media and social platforms. The big success of Kakao Talk in Korean market is expanding and reproducing into Japanese and Southeast Asian markets through the 'Line' serviced by NHN. Line is applying the proven success stories of Kakao Talk to the Japanese and Southeast Asian markets. It means that Kakao and Line, both are mobile IM services, have raised the possibility of success in the global SNS market although online web-based SNS Cyworld has failed in the global market.

• The Journal of Korean Association of Computer Education
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• v.20 no.6
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• pp.17-25
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• 2017

In order to ensure that the 2015 revised curriculum is successfully settled at the field of school, there are 68 national SW schools operated by 2015 and 2016 at national level, and an inspection tool was developed to measure the effectiveness of SW education. The purpose of this study is to present the direction of the computing thinking inspection tool which can verify the effectiveness of the curriculum from 2018 through the analysis of the previously developed computing thinking inspection tool. As a result of the analysis, the validity of the ability factors to measure the problem solving process based on computing thinking was not enough. In the analysis of the item characteristics, the degree of discrimination was good, but difficulty was not enough to accurately measure the competence of students because of the high percentage of easy questions. Based on the results, this study suggested the development of the items considering the problem solving process based on the computing thinking, the application of the students' empirical knowledge, and the constitution that can confirm the flow of the thinking power with materials in the real life.

• Journal of The Korean Association of Information Education
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• v.20 no.5
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• pp.527-534
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• 2016

This study is an analysis of Software image using the semantic differential scale with elementary students. We have selected the items in a total of 35 pairs of test about software-related image adjectives and are categorized into 7 main factors, and then analyzed the entire image with the students. The analysis of the differences between the software images of sex, the female students than male students were recognized the software is complex, slow and difficult and do not want to have. The analysis of the self-awareness on the software, the students who know that well recognized for the software select the positive term for the software. The inter-grade analysis are the older grade students were the answer to the objective features of the software like more difficult and complex.