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Interactive Text Processor의 구현
김응서(E.S.Kim),김경수(G S Kim),김기원(G W Kim),유재우(C.W.Yoo),송후봉(H B Song) 한국정보과학회 1989 한국정보과학회 학술발표논문집 Vol.16 No.1
Text processor란 컴퓨터를 이용하여 문서의 작성, 편집을 수행할 수 있는 software를 말한다. 현재 우리가 사용하는 대 부분의 text processor는 문서의 중간 중간에 문서 편집 명령을 넣어 출력시 작용하게하는 batch-oriented text processor로서, 문서를 작성, 편집을 할 때 사용자의 의도를 반영하기 위하여 몹시 귀찮은 작업을 많이 해야 한다. 따라서, 기존의 방식에서 나타나는 문제점을 해결하고, 사용자에게 보다 편리한 interactive text processor를 설계하고자 한다. 본 연구에서는 프로그래밍 언어 분야에서 많이 연구되고 있는 attribute grammar를 이용하여 문서들을 attributed tree로 표현하고, 대화적으로 수정 및 편집을 수행하기 위하여 점진적인 평가 기술을 text processor에 적용하는 방법을 설계, 구현하였다.
J. B. Kim,이영백,윤종승,G. J. Lee,이주열,김기원 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.48 No.6
The magnetic and the magneto-optical properties of one-dimensional magnetic photonic crystals(1-D MPCs) produced by using femtosecond-laser-induced crystallization of amorphous Co2MnSi .lms were elucidated. The amorphous Co2MnSi .lms were fabricated on glass substrate at room temperature by using rf magnetron sputtering. A grating-like periodic structure was obtained by using two-beam interference of the laser pulses. The atomic-force-microscopy and the transmission-electron-microscopy results showed regularly-spaced alternating lines with a periodicity of 2 ¹m. Magnetic-force-microscopy revealed periodic patterns of magnetic domains in the grating. The Kerr hysteresis loops of the sample were measured via the longitudinal magneto-optical Kerr eect by using a magneto-optical microscope. The enhanced magneto-optical properties of .lms were observed in the .rst-order diraction beam. The .lms with a spatially periodic magnetic structure were found to be relatively easily fabricated by selectively crystallizing a paramagnetic Co2MnSi amorphous .lm, which crystallized into a ferromagnetic phase upon illuminating it with a su±ciently intense laser light.
마이크로 팩토리를 위한 미세 방전 가공 장치의 해석 및 제어
유병한(B. H. Yoo),김기원(K. W. Kim),김태곤(T. G. Kim),정재원(J. W. Jung),정영훈(Y. H. Jeong),민병권(B-K. Min),이상조(S. J. Lee) 한국생산제조학회 2005 한국생산제조시스템학회 학술발표대회 논문집 Vol.2005 No.10
Electrical discharge machining method is a valuable manufacturing method in the microfactory system. In this study, a model-based process analysis and control methods are developed. The electric discharge power simulation and process simulation can be introduced and the optimization of EDM machining condition for the better understanding of electrical discharge phenomena. For the accurate control of machining depth in EDM, a real time control method is developed using plasma pulse counting. As a result, it is demonstrated that the flat machined surface can be obtatined using the developed control method.
마이크로 팩토리를 위한 미세 방전 가공 장치의 해석 및 제어
유병한(B. H. Yoo),김기원(K. W. Kim),김태곤(T. G. Kim),정재원(J. W. Jung),정영훈(Y. H. Jeong),민병권(B-K. Min),이상조(S. J. Lee) 한국생산제조학회 2005 한국공작기계학회 추계학술대회논문집 Vol.2005 No.-
Electrical discharge machining method is a valuable manufacturing method in the microfactory system. In this study, a model-based process analysis and control methods are developed. The electric discharge power simulation and process simulation can be introduced and the optimization of EDM machining condition for the better understanding of electrical discharge phenomena. For the accurate control of machining depth in EDM, a real time control method is developed using plasma pulse counting. As a result, it is demonstrated that the flat machined surface can be obtatined using the developed control method.
이희원(H.W.Lee),국경훈(K.H.Kook),김기원(K.W.Kim),김태곤(T.G.Kim),유병한(B.H.Ryu),정채원(J.W.Jung),한민섭(M.S.Han),정영훈(Y.H.Jung),민병권(B.K.Min),이상조(S.J.Lee) 한국생산제조학회 2005 한국생산제조시스템학회 학술발표대회 논문집 Vol.2005 No.5
Microfactory is effective method for machining micro size component. Electro-chemical machining can be more suitable to a microfactory than other machining methods in terms of maintaining high accuracy. Surface profile of EDM Machined component is predicted by micro EDM simulation using superpositioning spark crater. Planar motor and micro pump are developed to construct microfactory system.