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RISS 인기검색어
- 검색키워드
- 저자 : 김현식(Hyunsik, Kim) (검색결과 63 건)
- 무료
- 기관 내 무료
- 유료
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김현식,마정목,Kim, Hyunsik,Ma, Jungmok 한국시뮬레이션학회 2019 한국시뮬레이션학회 논문지 Vol.28 No.1
Modeling and simulation(M&S) method are used to quantify the weapon effectiveness. The weapon effectiveness of artillery shells was also partially studied, but there was a lack of research on the effects of the choice of charge. Therefore, this paper presents an artillery shell's EFD(Expected Fractional Damage) calculation model based on the charge and identifies differences in the weapon effectiveness of 3D building targets according to the selection of the charge. First, the input data of the calculation model was collected and a required number of shoots was calculated to achieve the desired effects using the proposed model. Finally, a paired sample t-test was conducted to verify the proposed model.
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PreVision : 플랜트의 이상 징후를 조기에 감지하기 위한 솔루션
김현식(HyunSik Kim),유준우(Junwoo Yoo),박진성(JinSung Park) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
In this paper, based on a machine learning algorithm, we propose a fault detection method that can predict fault and detect it early. This method has the advantage of having high accuracy and versatility at the same time, and it consists of Ensemble Learning based on a prediction algorithm to predict fault at an early stage and Auto-Learning Algorithm for automatically optimizing the learning model. By applying the aforementioned algorithm to a solution called PreVision, it was confirmed that anomalies were detected early in various plants. PreVision can utilize its powerful simulation capabilities to validate results on its own.
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IoT 기반의 건설현장 미세먼지 모니터링 시스템 개발에 관한 연구
김현식 ( Kim¸ Hyunsik ),태성호 ( Tae¸ Sungho ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.2
Recently, particulate matter(PM) caused by internal factors such as industrialization and urbanization as well as external factors such as Asian dust is a serious problem in Korea. In particular, while the emission due to construction appears to be very serious among the internal factors, it is necessary to manage PM in consideration of the characteristics of construction sites. Accordingly, in this study, a PM management system suitable for construction sites was developed to reduce civil complaints caused by PM and to minimize damage to field workers and nearby residents by supporting the fine dust management system of the state and local governments. The factors to be considered when measuring PM due to the specificity of construction sites were considered, and the system components were developed based on the considerations. As a result, an IoT based construction site PM monitoring system (CPMS) that integrates each component was established.
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PreVision : 플랜트의 이상 징후를 조기에 감지하기 위한 솔루션
김현식(HyunSik Kim),유준우(Junwoo Yoo),박진성(JinSung Park) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
In this paper, based on a machine learning algorithm, we propose a fault detection method that can predict fault and detect it early. This method has the advantage of having high accuracy and versatility at the same time, and it consists of Ensemble Learning based on a prediction algorithm to predict fault at an early stage and Auto-Learning Algorithm for automatically optimizing the learning model. By applying the aforementioned algorithm to a solution called PreVision, it was confirmed that anomalies were detected early in various plants. PreVision can utilize its powerful simulation capabilities to validate results on its own.
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김현식(Hyunsik Kim),유은순(Eunsoon You),박승보(Seoung-Bo Park),차상진(Sang-Jin Cha),조근식(Geunsik Jo) 한국멀티미디어학회 2010 한국멀티미디어학회 학술발표논문집 Vol.2010 No.2
장편 드라마, 영화 등 스토리의 호흡이 긴 콘텐츠를 제작함에 있어 스토리의 인과율 문제는 큰 이슈가 되고 있다. 특히 인터랙티브 스토리텔링이 요구하는 비선형적, 동시적 서사는 작가가 기억해야 하는 사실 정보를 폭증시키고 그에 따라 논리적 모순이 생길 가능성이 높아지고 있다. 이러한 문제를 극복하기 위하여 본 논문에서는 이미 만들어진 콘텐츠로부터 사실 정보를 추출, 분석하여 작가의 기억을 보조하고 작품의 구조적 오류를 방지해주는 캐릭터 이력 추적 시스템을 제안한다.
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정부 선정영향력이 기술발전 프로세스에 미치는 영향 분석
김현식(Hyunsik Kim),배성주(Sung Joo Bae),한상연(Sangyun Han) 한국혁신학회 2018 한국혁신학회지 Vol.13 No.4
본 연구는 우리나라와 같은 선진국을 추격하는 국가에서 기술발전에 정부가 어떤 영향을 미치는지 살펴보기 위하여 정부의 선정영향력이 어떤 요인에 의해 결정되고 민간 영역에 어떻게 연계되어 기술발전을 이끌어주는지에 대한 영향을 분석하고자 하였다. 이는 정부선정영향력의 발생과 확산 과정은 제도적 환경에 기반한 정부의 선정영향력이 기술분야별 투자전략을 결하는 과정에서 나타나며(selection), 정부의 선정영향력은 적합한 탐색 전략에 따라 공동 탐색과 학습 과정을 거쳐 민간영역의 연구개발활동에 영향을 주는 형태로 진행(variation)되는 과정을 거치는 것을 보여주고자 한다. 이를 위하여 국가연구개발사업 조사분석 자료 연 단위 284개, 10년치(’07~’16) 합계 총 2,840개의 기술분야별 패널데이터와 연구개발활동조사 연 단위 35개, 10년치(’06~’15) 합계 총 350개의 기술분야별 패널데이터를 분석에 활용하였다. 실증분석결과, 정부 선정영향력을 결정하는 규제적, 규범적, 문화인지적 요인 등의 제도적 요인이 긍정적인 영향을 미치는 것으로 나타났다. 또한 정부선택이 탐색전략을 병행하면 공동탐색을 증가시킬 수 있고, 정부선택이 공동탐색을 거치면 민간연구개발활동을 증가시킬 수 있다는 유의미한 결과를 도출하였다. 따라서 과학기술기본계획과 정부R&D 투자방향에 포함된 기술분야를 규제를 통해 의무적으로 반영하고 전문가적 가치관이 반영된 전년도 정부연구비와 민간매칭연구비가 높을수록, 전년도 논문과 특허등록에 기여한 정도를 높일 필요가 있다. 또한 국가가 전략적으로 육성하는 기술분야에서 기존에 잘 하던 방식으로 연구개발을 집중적으로 수행하고 새로운 영역에 대한 창의·도전적 연구를 확대하는 탐색전략을 병행하는 것이 의미가 있다. 그리고 정부R&D를 통한 문제 해결과정에서 발생한 성과물이 민간에 이전되고 사업화되어 민간R&D활동을 증가시킬 수 있음을 실증적으로 고찰하였다. In order to research the impact of government on technological development in chasing advanced countries such as our country, this study analyzed the impact of government’s selection force on which factors were determined and linked to the private sector to lead technological development. There is a government’s selection force based on the institutional environment, which the process of developing and expanding the government’s selection force is reflected in the determination of investment strategies by technology fields. This study aims to show that the government’s selection force is conducted in a form that affects R&D activities in the private sector through collaborative search and learning processes according to appropriate search strategies. For this purpose, We were utilized for analysis 284 national R&D project research analysis data per year, 10 years (’07-’16) total of 2,840 technical field-specific panel data and a total of 350 panel data for each technical field including 35 units of R&D activity surveys per year (’06-’15). The results of an empirical analysis, Institutional factors such as regulative, normative, and cultural-cognitive factors that determine the influence on the government’s selection were found to have positive effects. And The collaborative search could be increased if the government’s selection combines a search strategy, and significant results were derived that the collaborative search could increase the private research and development activities. So, the government is obliged to reflect the technology fields that includes the S&T basic plan, government R&D investment direction through regulation. The higher the previous year’s government research funds and private matching research funds reflected in professional values, the higher the degree to which the previous year’s papers and patents were contributed. In addition, it is meaningful to focus on R&D in ways that the country has traditionally performed well in the technology fields that the country strategically fosters, and to expand creative and challenging research in new areas. And it is meaningful to consider it empirically that the outcomes of the problem-solving process through government R&D could be transferred to the private sector and commercialized, increasing private R&D activities.
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