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시스템 엔지니어링 방식에 의한 철강 연속 주조 시스템 설계
신기영,홍대근,윤수철,서석환,Shin, Kee-Young,Hong, Dae Geun,Yoon, Soo Cheol,Suh, Suk-Hwan 한국시스템엔지니어링학회 2014 시스템엔지니어링학술지 Vol.10 No.2
Recently, global market competition of iron and steel products is ever increasing due to over-supply from increased number of industries in rapidly growing countries, such as China, Brazil, and Indonesia. To occupy the big market, major industries are trying to develop high quality, high performance steel products via developing a new iron and steel making process. In other words, development of a new and innovative steel plant is a key to cope with the tough situation. Design and development for the life cycle of iron and steel making plant is very much complex and multi-disciplinary. In this paper, Plant Systems Engineering (PSE), a tailored SE process for industrial plant based on ISO/IEC 15288 is used for the design of Continuous Casting Process (CCP) Plant system. The CCP is a crucial process in steel making plant, whose design technology is occupied by the advanced foreign companies. For the sake of increasing engineering capability for the design of CCP, we applied PSE Process for the renovation of the existing CCP Process. Through the study, we were convinced that the applied method can be used for other plant systems, and SE is really the way of thinking, design, and development of modern complex and multi-disciplinary systems where high risk factors are present throughout the whole life cycle.
스마트 제조 실행 시스템 기본설계를 위한 시스템 엔지니어링 적용 방법에 대한 연구
전병우,신기영,홍대근,서석환,Jeon, Byeong-woo,Shin, Kee-Young,Hong, Dae-Geun,Suh, Suk-Hwan 한국시스템엔지니어링학회 2015 시스템엔지니어링학술지 Vol.11 No.2
Manufacturing Execution System(MES) is in charge of manufacturing execution in the shop floor based on the inputs given by high level information such as ERP, etc. The typical MES implemented is not tightly interconnected with shop floor control system including real (or near real) time monitoring and control devices such as PLC. The lack of real-time interfaces is one of the major obstacles to achieve accurate and optimization of the total performance index of the shop floor system. Smart factory system in the paradigm of Industry 4.0 tries to solve the problems via CPS (Cyber Physical System) technology and FILS (Factory In-the-Loop System). In this paper, we conducted Systems Engineering Approach to design an advanced MES (namely Smart MES) that can accommodate CPS and FILS concept. Specifically, we tailored Systems Engineering Process (SEP) based on an International Standard formalized as ISO/IEC 15288 to develop Stakeholders' Requirements (StR), System Requirements (SyR). The deliverables of each process are modeled and represented by the SysML, UML customized to Systems Engineering. The results of the research can provide a conceptual framework for future MES that can play a crucial role in the Smart Factory.
국내 현존 학교건물의 내진성능평가 및 내진보강에 관한 연구
이강석 ( Lee Kang Seok ),신기영 ( Shin Kee-young ),최규진 ( Choi Kyu-jin ),최창식 ( Choi Chang-sik ),이리형 ( Lee Li-hyung ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.2
The main purpose of this study is to provide a basic information regarding the proposal of seismic capacity evaluation and seismic retrofit techniques of existing reinforced concrete school buildings in Korea by reviewing applicabilities of the Japanese Standard for Evaluation of seismic Capacity and the Guideline for Seismic Retrofit Techniques of Existing Reinforced Concrete Buildings. In this study, the seismic capacity of a existing reinforced concrete school buildings in Korea, which was constructed in the 1980s using the standard design specification, is evaluated based on the Japanese Standard. The seismic protection index suitable for Korean reinforced concrete buildings is proposed based on the probabilistic point of view, also the seismic rehabilitation of the investigated school building is carried out using both strength and ductility design approaches.
국내 현존 학교건물의 내진성능평가 및 내진보강에 관한 연구
이강석(Lee Kang Seok),신기영(Shin Kee-Young),최규진(Choi Kyu-Jin),최창식(Choi Chang-Sik),이리형(Lee Li-Hyung) 한국구조물진단유지관리학회 2005 한국구조물진단학회 학술발표회논문집 Vol.9 No.2
The main purpose of this study is to provide a basic information regarding the proposal of seismic capacity evaluation and seismic retrofit techniques of existing reinforced concrete school buildings in Korea by reviewing applicabilities of the Japanese Standard for Evaluation of Seismic Capacity and the Guideline for Seismic Retrofit Techniques of Existing Reinforced Concrete Buildings. In this study, the seismic capacity of a existing reinforced concrete school buildings in Korea, which was constructed in the 1980s using the standard design specification, is evaluated based on the Japanese Standard. The seismic protection index suitable for Korean reinforced concrete buildings is proposed based on the probabilistic point of view, also the seismic rehabilitation of the investigated school building is carried out using both strength and ductility design approaches.
김도훈 ( Dohun Kim ),황화원 ( Hwa-won Hwang ),신기영 ( Kee-young Shin ),최자영 ( Ja Young Choi ),고재훈 ( Jaehoon Ko ),김치하 ( Chee-ha Kim ) 한국정보처리학회 2010 한국정보처리학회 학술대회논문집 Vol.17 No.2
본 논문은 철강공정을 위한 미들웨어 구조를 제시하였다. 제안된 미들웨어는 커널 코어, 철강공정에 필요한 각 서비스 기능, 응용 소프트웨어와의 연결을 유지하는 채널 매니저, 응용 소프트웨어의 서비스 요구를 처리하는 API 핸들러, 미들웨어 사용 API로 구성된다. 제안된 미들웨어는 분산환경을 지원하며, 산업체에서 주로 사용되는 운영체제들을 지원하도록 구현하였다. 제안된 미들웨어에 대해 각 서비스의 성능이 측정되었으나, 지면상 본 논문에는 동기 메시지 서비스, 타이머 서비스의 성능만을 제시하였다. 또한 제안된 미들웨어를 철강공정 중 하나인 열간압연공정에 적용한 결과, 기존 상용 미들웨어를 사용한 환경에 비해 응답시간 성능이 30-35% 향상하였음을 보였다.
허윤(Yoon Huh),이상기(Sang kee Lee),김익현(Ick Hyun Kim),신기영(Ki Young Shin),최우근(Woo Kun Choi),문성채(Sung Chae Moon) 대한소화기학회 1982 대한소화기학회지 Vol.14 No.1
N/A The author had studied 58 cases in old age group with benign gastric ulcer diagnosed by gastrofiberscopy in Inje Medical College, Busan Paik Hospital from June 1979 to Dec. 1981 The following results were obtained; 1) The ratio of male to female in old age group with benign gastric ulcer was 3.51. The male was in 77. 6% and female was in 22.4%. 2) The main symptoms of benign gastric ulcer were epigastric pain in 53.4%, indigestion in 20.7%, epigastric discomfort and hunger pain in 15. 5% in order of freguency, but the symptomless cases were 22.4% The vague symptoms or asymptomatic cases were more frequent than cases with specific ulcer symptoms in young and adolescent aged gastric ulcer. 3) On U.G.I. Examination, the old aged gastric ulcer was interpreted as malignancy more frequent than the young and adolescent aged gastric ulcer. 4) On endoscopic examination at the time of diagnosis with old aged gastric ulcer, single ulcer was in 84.5% multiple ulcer was in 15. 5%. Single ulcer was more common in its frequency. In benign gastric ulcer, the diameter of ulcer smaller than 1 cm was in 45 7%, 1-2 cm in 21. 7%, larger than 2 cm in 32. 6%. Especially, 54, 3% of cases had relatively large lesion with diameter of above 1 cm. Among benign gastric ulcer, 43.5% of cases were observed on stomach body, 35. 8% on antrum, 17. 4% on angular portion in order of frequency. In lateral view of stomach, 60.9% of cases were located on lesser curvature of stomach. 5) Associated diseases were chronic liver disease in 32. 1%, hypertension, heart disease and diabetes mellitus in 14.3% respectively in order of frequency. Complications developed in 33 cases of benign gastric ulcer. Bleeding was in 60.6%, perforation in 33. 3% and pyloric stenosis or obstruction in 6.1% in order of frequency.
ON THE STABILITY OF EULER-LAGRANGE TYPE FUNCTIONAL EQUATION
SHIN, KEE YOUNG,CHOI, BUUNG MUN,LEE, YOUNG WHAN,LEE, JI YEON 대전대학교 기초과학연구소 2003 自然科學 Vol.14 No.1
1장에서는 이미 알려진 함수 방정식의 안전성에 대하여 소개하였고, 2장에서는 오일러-라그랑주 타입 함수 방정식의 해는 이차 함수 형태로서 안정성을 갖는다는 성질을 밝혔다. 특히 일반화된 안정성 성질을 알기 위해서 Gavruta의 관점에서 안정성을 밝혔으며, 이것으로부터 Hyers-Ulam-Rassias 안전성 정리를 얻었다. TH. M. Rassias obtained the Hyers-Ulam stability of the general Euler-Lagrange functional equation. In this paper we prove the stability of an another Euler-Lagrange type functional equation in the spirit of Hyers, Ulam, Rassias and Gavruta.
THE STRUCTURE OF LINEAR MAPPINGS WHICH EVERY INVERTIBLE ELEMENTS IS INVARIANT
SHIN,KEE YOUNG,LEE,YOUNG WHAN 대전대학교 기초과학연구소 1996 自然科學 Vol.7 No.2
본 논문에서는 바나하 공간 위에서 유계인 선형 사상들의 대수인 B(X)와 B(Y)가 있을 때 이들 각각의 Strictly Dense인 부분대수 A와 B사이에 역원이 불변이고 전사인 선형 사상이 존재하면, 이 사상은 Spectrum을 보존하고 Jordan 준동형이 되면 X와 Y가 위상동형이든가 XA와 Y가 위상동형이 되는 성질을 갖고 있음을 보였다. 또 Semisimple Annihilator 바나하 대수사이에 Full Spectrum이 보존되는 선형 사상은 Jordan 준동형이 됨을 밝혔다. We study the structure of linear mappings which every invertible element is invariant. In particular, we show that if A is a semisimple Banach algebra and B a semisimple annihilator Banach algebra, then every linear mappings from A onto B which presserves the full spectrum is a Jordan homomorphism.
RANGES OF TRIPLE JORDAN DERIVATIONS ON SEMIPRIME RINGS AND BANACH ALGEBRAS
SHIN, KEE YOUNG,LEE, YOUNG WHAN,SHIN, HYOUN CHOONG 대전대학교 기초과학연구소 2000 自然科學 Vol.11 No.1
We give the various algebraic conditions on the ring that every triple Jordan derivation on a noncommutative ring with suitable characteristic conditions is zero and using the results. we show that every continuous linear Jordan derivation on a noncommutative Banach algebra maps into its radical under the conditions.
PROPERTIES OF JORDAN TYPE DERIVATIONS AND ITS APPLICATIONS
SHIN, KEE YOUNG,CHOI, BYUNG MUN,KIM, JIN MYUNG,LEE, JI YEON,LEE, YOUNG WHAN 대전대학교 기초과학연구소 2003 自然科學 Vol.14 No.1
2-torsion free semiprime 환 위에서는 모든 미분작용소, 조르단 작용소, 조르단 타입 미분작용소가 동치라는 성질을 밝혔으며, 모든 조르단 타입 미분작용소가 적당한 환의 조건에서는 0 사상임을 증명하였다. 또한 이것을 바나하 공간에 응용하여 바나하 대수의 Radical 불변인 사상이 되는 정리를 얻었다. In this paper we show that every derivation, Jordan derivation, and Jordan type derivation on a 2-torsion free semiprime ring are equivalent and give the various algebraic conditions on the ring that every Jordan type derivation on it is zero and using this results, we show that every continuous linear Jordan derivation on a noncommutative Banach algebra maps into its radical under the suitable conditions.