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Expected Number of Visits of the Regenerative Process
Shim, Donghee 한국경영과학회 2000 韓國經營科學會誌 Vol.25 No.3
Expected number of visits in the steady state of the regenerative process is one of the most useful characteristics. The formula for this expected number of visits in the steady state of the regenerative process is presented in this paper. Because this formula is for the general model, it can be applied to many special systems including 2-unit redundant system. An example for this formula is also presented.
Some Properties of the Regenerative Process
Shim, Donghee 한국경영과학회 1997 經營 科學 Vol.14 No.2
Limiting probability in the steady state of the regenerative process is one of the most useful characteristics. The formula for this limiting probability in the steady state of the regenerative process is presented in this paper. Because this formula is for the general model, it can be applied to many special systems including 2-unit redundant system. An example for this formula is also presented.
Some properties of the regenerative process
Shim, Donghee The Korean Operations Research and Management Scie 1997 經營 科學 Vol.14 No.2
Limiting probability in the steady state of regenerative process is one of the most useful characteristics. The formula for this limiting probability in the steady state of the regenerative process is presented in this paper. Because this formula is for the general model, it can be applied to many special systems including 2-unit redundant system. An example for this formula is also presented.
MOST에서 동적 경계표시자를 이용한 소스데이터의 대역폭 할당방안
심동희(Donghee Shim),노영호(Youngho Rho),이철동(Chuldong Lee),조현준(Hyunjoon Cho) 한국정보기술학회 2010 한국정보기술학회논문지 Vol.8 No.1
MOST(Media Oriented System Transport) technology has been used to distribute multimedia data in digital forms in a motor vehicle. MOST cooperation have developed MOST protocol as an industry standard. Although MOST cooperation released MOST protocols above layer 3, they do not open the layer 1 and 2. Frames including control data and source data are transferred by layer 2. Source data can be classified into synchronous packet data and asynchronous streamming data. To provide a fixed channel to these data, static boundary descriptor has been used. A bandwidth allocation method for an source data using dynamic boundary descriptor is proposed and analysed in this paper.
MOST(Media Oriented System Transport)에서 UPnP 서비스 지원 방법
심동희(Donghee Shim) 한국정보기술학회 2012 한국정보기술학회논문지 Vol.10 No.2
MOST network provides communication functions for applications and function blocks in MOST devices of vehicles. It supports 3 kinds of service, which are control message service, streaming data service and packet data service. MOST packet data service can deliver IP datagram using a method of IP address management. A communication service method for UPnP(Universial Plug and Play) devices attached in MOST network using the extended method of this IP address management method is designed in this paper. UPnP-IP address management server is designed, and UPnP devices and UPnP control point can communicate using this server. Designed UPnP service method was verified through simulations and the result of simulation showed that suggested method can be used for UPnP service in MOST network.
MOST에서 스트리밍데이터 전송을 위한 다중화 기능 설계
심동희(Donghee Shim),이철동(Chuldong Lee),조현준(Hyunjoon Cho) 한국정보기술학회 2010 한국정보기술학회논문지 Vol.8 No.11
MOST is already recognized as a standard protocol for multimedia data transmission in cars, and now the research and the developments for MOST are being world-widely executed. The network service of MOST consists of the control data service, the streaming data service and the packet data service. This paper suggests a design of multiplexing function for the streaming data transmission in MOST. For time division multiplexing, we defined a bandwidth allocation table which mapped time slots of the MOST frame to streaming data channels. Each channel consists of several time slots according to the bandwidth of it allocated by the connection master in MOST. To achieve effective buffering, we used linked list buffers in memory array. To check validity the designed multiplexing function, we programmed that function in Java classes and simulated it. The result of the simulation shows that the designed modules executed the multiplexing function in the proper with streaming data service scenarios.
심동희(Shim Donghee),황종선(Hwang Chongsun) 한국정보과학회 1992 한국정보과학회 학술발표논문집 Vol.19 No.2
블럭세계는 인공지능에서 많이 이용되는 문제영역인 데, 이는 기본적 블럭세계와 확장된 블럭세계로 나뉘어진다. 그리하여 지금까지 많은 계획자들이 개발되어 이용되어 왔지만 모두 기본적 블럭세계에 대해서만 적용될 수 있다는 문제점을 갖고 있다. 본 연구에서는 블럭이름의 중복을 허용하는 경우의 확장된 블럭세계에 대한 교착상태를 정의하고, 이 성질을 이용하여 계획자 알고리즘을 설계하였으며, 이를 구현하고 평가하였다. 이 계획자는 자동창고시스템의 로보트에 적용될 수 있다.