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조동식(Dong-Sik Jo),정상범(Sang-Beom Jeong),조성원(Sung-Won Cho),손영진(Young-Jin Son) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
Line 2 is being operated in 10 cities and it composed the amount of rolling stock combination. Line 2 rails have more curved than straight rails. So, wheels and rails were damaged. Accidents or delays caused many social problems. so it is important that wheel and rail are efficiently managed. Here, find out the cause of wheel-slip characteristics and workarounds were studying. Chapter 1 Background and Purpose. Chapter 2 about wheel slip problem and seek way improving adhesiveness. Chapter 3 Conclusion.
Wormhole 라우팅 적응력을 이용한 교착상태 회복에 관한 연구
우경환,정상범,이천희 청주대학교 산업과학연구소 1997 産業科學硏究 Vol.15 No.-
The performance of interconnection networks can be improved by pipelining packet transmission and using adaptive routing. Wormhole switching, which is an efficient pipehned switching technique, is unfortunately prone to deadlock be cause each packet usually holds several channels simultaneously. Until recently, most proposals have focussed on deadlock avoidance. In this paper, we proposed an efficient and cost effective deadlock recovery strategy which is based on the concept of routing deadlocked message on a deadlock-free lance. It generalized the theory on the deadlock recovery by considering a mixed set of resources (edge and central buffers) using the notion of buffers as apposed to channels This paper extends the work by appling the generalized theory developed to relax the sequential recovery requirement all allow simultaneous recovery from deadlocks.