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이성구(S. G. Lee),신상원(S. W. Shin),이재용(J. Lee),이종한(J. H. Lee),김태곤(T. G. Kim),송종한(J. H. Song) 한국자기학회 2004 韓國磁氣學會誌 Vol.14 No.3
Array of magnetic Ni nanostructures has been fabricated on Si substrate by using nanoporous alumina film as a mask during deposition. The nanostructures are truncated cone-shape and the lateral sizes are comparable to height. While the continuous film shows well-defined in-plane magnetization, the nanostructure shows perpendicular component of magnetization at remanence. The hysterectic behavior of nanostructures is dominated by the demagnetizing field instead of interaction among them.
1996년도 제35차 대한소화기학회 추계학술대회 / 일반연제 : 담도·췌장 ; 총담관 결석의 성분 분석 - 담낭결석과의 연관성에 관한 연구
김명환,이성구,유병무,서동완,정성애,김연석,김석균,이근찬,민영일,박광민,이영주,이승규 ( M . H . Kim,S . K . Lee,B . M . Yoo,D . W . Seo,S . A . Jung,Y . S . Kim,S . G . Kim,G . C . Lee,Y . I . Min,K . M . Park,Y . J . Lee,S . G . Lee ) 대한소화기학회 1996 대한소화기학회지 Vol.28 No.1
이형우(Lee H-W),이성구(Lee S-G),박찬배(Park C),권삼영(Kwon S-Y),이병송(Lee B-S),이주(Lee Ju),박현준(Park H-J) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
This paper presents the influence of the airgap tolerance on performance of a linear induction motor. Construction tolerance of the plate affects directly to the cost and performance of the Linear metro. LIM has around 10[mm] large airgap with many restrictions such as construction tolerance, thermal expansion and bend of the reaction plate, abrasion of the wheel, and so on. In order to have steady performance, the airgap should be uniform. But it is impossible to maintain the secondary reaction plate be flat along with the long track. Therefore the influence of the flatness on performance of a LIM should be investigated.
3상 유도 전동기의 기동 특성 향상을 위한 Part winding 해석 및 설계
김광수(K.S. Kim),김기찬(K.C. Kim),이성구(S.G. Lee),이주(J. Lee) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
This paper covers start-up characteristic of three phase induction motor. When three phase induction motor is started, the inrush current occurs. There are several ways of reducing starting current of a three phase motor. In this paper will explain and propose the types of part windings in order to reduce the starting current.