http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
멀티컴퓨팅 시스템을 위한 피터슨-토러스(PT) 네트워크
서정현,이형옥,장문석 한국정보과학회 2008 정보과학회논문지 : 시스템 및 이론 Vol.35 No.6
We propose and analyze a new interconnection network, called petersen-torus(PT) network based on well-known petersen graph. PT network has a smaller diameter and a smaller network cost than honeycomb torus with same number of nodes. In this paper, we propose optimal routing algorithm and hamiltonian cycle algorithm. We derive diameter, network cost and bisection width. 본 논문은 피터슨 그래프를 기본으로 만든 새로운 상호연결망 피터슨-토러스(PT) 네트워크를 제안한다. PT 네트워크는 동일한 노드수를 갖는 honeycomb 토러스보다 짧은 지름을 갖고 망 비용이 개선된 연결망이다. 본 논문에서는 PT 네트워크의 최적 라우팅 알고리즘과 해밀톤 사이클 알고리즘을 제안하고, 지름, 망 비용 그리고 bisection width를 분석하였다.
서정현,김민수 대한설비공학회 1999 설비공학 논문집 Vol.11 No.5
Experiments were carried out to investigate the condensation heat transfer characteristics for R22 and its alternatives, R407C (R32/125/134a, 23/25/52wt%) and R410A (R32/125, 50/50wt%). A concentric tube heat exchanger was made to conduct condensation heat transfer tests. Mass flux and saturation temperature of refrigerants at the test section inlet were varied to get the corresponding heat transfer coefficients. Serial and parallel input of secondary fluid (water) were applied to the test subsections. Compared with existing correlations of condensation heat transfer, experimental heat transfer coefficients obtained in this study were generally higher than the predicted values, and mean absolute deviations from several correlations were shown. Wall subcooling was introduced to get a new correlation for condensation heat transfer coefficients by modifying Shah's equation. The RMS deviation of the measured heat transfer coefficients from the new correlation in this study for R22 is 9.9% and that for R407C and R410A are 10.2% and 14.6%, respectively.