독립이 아닌 공정의 로버스트 누적합관리도에 관한 연구

Thesis (doctoral)--서울대학교 대학원 :통계학과,1997.Docto

SOI MOSFET에서의 floating body 전압의 해석적 model과 소자 축소에 따른 변화

학위논문(석사)--서울대학교 대학원 :전기공학부,2000.Maste

디램 셀과 소노스 소자에서 턴넬링 전류 증가와 관련한 소자 신뢰성에 대한 연구

Thesis(doctoral)--서울대학교 대학원 :전기·컴퓨터공학부,2005.Docto

슬릿을 갖는 평행평판 도파관, 인셋 유전체 도파관 및 원형구멍 산란의 푸리에/한켈 변환 해석

학위논문(박사) - 한국과학기술원 : 전기및전자공학과, 1997.8, [ v, 151 p. ]The theoretical analysis method of this paper is Fourier transform and Mode matching method which were used to analyze the electromagnetic scattering and radiation by slitted parallel-plate waveguide, inset dielectric guide, and circular aperture. This method gives us a series solution in the closed region and an integral solution in the open region. The dominant contribution of the size of the modal matrix is determined by the number of propagating modes and a few significant evanescent modes which exist within the waveguide sections. In chapter 2 and 3 the scattering and radiation from a slitted waveguide is analyzed. The computed results are reflected, transmitted, radiated powers, and radiation pattern. The incident wave is assumed to be TE or TM mode. The effect of the parameter of slit($N_s$,a,d,T) is analyzed. In chapter 3 the grooves are inserted into the parallel plate waveguide. The grooves area kind of scatterer. The groove effect on the performance of antenna is investigated. By inserting the grooves into the parallel-plate waveguide the performance of slitted leaky wave antenna can be enhanced. The experiment and measurement of it confirmed that the theory accords well with the experiment. The effect of the parameter of groove is studied. In chapter 4 the inset dielectric guide is analyzed. The even and odd modes can be decoupled in this waveguide. The computed dispersion curves show the reasonable agreements with Rozzi``s paper. In chapter 5 and 6 the problem of the circular aperture is analyzed. The Hankel transform and Mode matching method is applied to the circular aperture. The electrostatic problem is investigated in chapter 5. We see that the transmitted potential increases as the radius of aperture gets larger and the thickness of aperture gets thinner. In chapter 6 the electromagnetic problem of coaxial line is analyzed. As the cartesian coordinate we can see that the same form of solution is obtained which is series form in the closed re...한국과학기술원 : 전기및전자공학과

평행 도파관에서 유한개의 사각형 홈에의한 TE모드의 산란해석

학위논문(석사) - 한국과학기술원 : 전기 및 전자공학과, 1994.2, [ iii, 46 p. ]An analytic solution for TE-mode scattering from a parallel-plate waveguide with periodic grooves is obtained. The Fourier-transform is used to express the scattered field in the spectral domain as superposition of the parallel-plate waveguide modes. The boundary conditions are enforced to obtain simultaneous equations for the transmitted field inside the grooves. The simultaneous equations are solved to represent the transmitted field in series form which is very efficient for numerical computation. Using the residue calculus, the reflection and transmission coefficients are obtained and their filter characteristics are studied in terms of frequency and groove sizes.한국과학기술원 : 전기 및 전자공학과

Natural substance of torilin and the use thereof as an inhibitor of tumor growth

본 발명은 사상자로부터 분리한 토릴린 화합물의 항암제로서의 용도에 관한 것이다. 본 발명의 토릴린 화합물은 혈관신생에 관여하는 내피세포의 증식을 억제하고 혈관신생을 억제할 뿐만아니라, 암세포가 분비하는 막분해 효소인 매트릭스 메탈로프로테아제의 활성과 그 유전자 발현을 억제하여 암세포의 침윤을 저해하는 뛰어난 효과가 있어 다기능 항암제로서의 이용가치가 높다