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전하평형형 적분방식을 이용한 CMOS 8-bit A/D 변환기 설계
박철영,정호선,이우일 경북대학교 공과대학 1986 工大硏究誌 Vol.15 No.-
This paper describes the design of 12-bit CMOS charge balancing A/D converter which has inherently high accuracy, linearity and noise immunity. System was simulated with logic simulator (KLOG) and circuits were simulated by circuit simulator (SPICE). The result of logic and circuit simulation has turned out that the A/D converter designed by 5㎛ design rule operated normally.
J-invariant submanifolds of codimension 2 in a complex projective space
Yeong-Wu Choe 대한수학회 2002 대한수학회보 Vol.39 No.2
In this paper we prove that if M is a J-invariant submanifoldof codimension 2 in a complex projective space P_{n+1} (C),and the second fundamental tensor is cyclic-parallel or M hasharmonic curvature, then M is locally complex quadric Q_n (C)or P_n (C).
Choe, Yeong-Wu,Ki, U-Hang,Kon, Masahiro Korean Mathematical Society 1994 대한수학회보 Vol.31 No.1
In [2] we proved that if the minimum of the sectional curvature of a compact real minimal hypersurface of CP$^{m}$ is 1/(2m-1), then M is the geodesic hypersphere. This result was generalized in [8] to the case of M is a generic submanifold with flat normal connection. The purpose of the present paper is to prove a following generalization of theorems in [2] and [8].