http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
병렬 결함 테스트 및 결함 포용 기능을 갖는 메모리 설계
권오형,홍성제 위덕대학교 부설 전자기술연구소 1999 전자기술연구소 논문집 : 위덕대 Vol.3 No.1
본 논문에서는 병렬 테스트가 가능하도록 메모리의 셀 어레이를 독립적인 여러 셀블록으로 구분하고, 셀블록들이 동시에 테스트에 참여할 수 있는 메모리를 설계하였다. 본 연구에서는 1Gb 기억용량이며, 4096개의 256Kb 셀블록으로 구성된 메모리를 설계하였다. 결함 발생시는 결함 셀블록을 고립시키는 graceful capacity degradation 방법을 이용한 결함 포용 회로를 설계하였다. 제안된 1Gb 메모리는 병렬 테스팅을 수행하기 때문에 4096배의 테스트 속도를 보인다. This paper proposes techniques, which perform parallel testing operation and graceful capacity degradation in case of memory fault. We present a 1 giga-bit memory with the techniques as an example. The proposed techniques offer a reduced testing time and an improved yield for high capacity memories.
권오형 위덕대학교 산업기술연구소 2000 산업기술연구소 논문집 Vol.4 No.1
본 논문은 AND, OR, XOR를 이용한 다출력 논리 합성 방법을 제시한다. 다출력 함수들에서 공통 인수를 산출하기 위해서 XCUBE를 사용하였으며, 다출력 함수들의 1-셀 분포에 따라 AND-OR 또는 AND-XOR로 논리 합성을 수행하는 알고리즘을 제시한다. This paper proposes a multi-output logic synthesis method using AND, OR, and XOR gates. The algorithm presented here is based on finding common cubes of given functions, called extended cube(XCUBE). XCUBE's can be obtained by deleting one literal from multi-output prime implicant. Multi-output functions care synthesized using XCUBE's, which decide the each output function into AND-OR or AND-XOR realization. We show that the different realization of output functions tends to generate more common cubes, which results in gate reductions. A heuristic is employed in the method to decide which type of realizations to be applied for each output function. The proposed method can generate either two-level or multi-level multi-output logic networks.
서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.
권오형(Oh-Hyeong Kwon) 한국산업융합학회 2000 한국산업융합학회 논문집 Vol.3 No.1
A factorization is an extremely important part of multi-level logic synthesis. The number of literals in a factored form is a good estimate of the complexity of a logic function. and can be translated directly into the number of transistors required for implementation. Factored forms are described as either algebraic or Boolean, according to the trade-off between run-time and optimization. A Boolean factored form contains fewer number of literals than an algebraic factored form. In this paper, we present a new method for a Boolean factorization. The key idea is to build an extended co-kernel cube matrix using co-kernel/kernel pairs and kernel/kernel pairs together. The extended co-kernel cube matrix makes it possible to yield a Boolean factored form. We also propose a heuristic method for covering of the cxtcnded co-kernel cube matrix. Experimental results on various benchmark circuits show the improvements in literal counts over the algebraic factorization based on Brayton's co-kernel cube matrix.<br/>