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http://hdl.handle.net/11133/2176
2024-03-29T01:16:07Z伸長結晶化ポリウレタンゴムに関する研究
http://hdl.handle.net/11133/2251
タイトル: 伸長結晶化ポリウレタンゴムに関する研究
著者: 白坂, 仁; SHIRASAKA, Hitoshi2000-09-25T15:00:00ZStudies on Reliability Analysis for Microprocessor Systems
http://hdl.handle.net/11133/2252
タイトル: Studies on Reliability Analysis for Microprocessor Systems
著者: 今泉, 充啓; IMAIZUMI, Mitsuhiro
抄録: This thesis treats several stochastic models of μP systems. Using the theory of Markov renewal processes , the reliability measures such as the mean times to system failure and to completion of the process are obtained. Moreover, the expected costs are derived and optimal policies which minimize them are analytically discussed. Finally, numerical examples of each model are given and some useful discussions are made . This thesis is divided into 9 chapters. Chapter 1 states fault tolerant techniques and microprocessors (μPs). Chapter 2 considers a μP system with a watchdog timer (WDT) which is preventively maintained at time T and at reset number N. Next, Chapter 3 treats a system where a main processor (MPu) has N watchdog processors (WDPs) with self-checking. To prevent that the MPu becomes faulty, the stochastic model to determine the number of WDPs is formulated. The μP unit which consists of μP and WDP has been recently used. Chapter 4 and Chapter 5 study a system with N μP units. It is assumed in Chapter 4 that a μP is in faulty state if more than K resets have occurred at time T. From the viewpoint of real-time processing of the system, it would be necessary to have the function which completes one processing within a certain limit time. It is assumed in Chapter 5 that a μP is in faulty state if it does not finish one processing until a limit time T. Chapter 6 considers a system with N TMR (Triple Modular Redundancy) units in which each unit consists of μP and WDP. Introducing the concept of complexity, an optimal number of TMR units which minimizes the expected cost is discussed. Chapter 7 deals with the problem for improving the reliability of a μP system with network processing. An optimal policy which minimizes the expected cost until a network processing is successful is discussed. Further, Chapter 8 considers the reliability problem of a μP system whose errors can be detected by using signatures. An optimal division number of a job is discussed. Finally, Chapter 9 summarizes the results derived in this thesis.2001-02-26T15:00:00Z13C-NMRおよび熱分解ガスクロマトグラフィーによる高分子材料のキャラクタリゼーション
http://hdl.handle.net/11133/2253
タイトル: 13C-NMRおよび熱分解ガスクロマトグラフィーによる高分子材料のキャラクタリゼーション
著者: 木村, 圭一郎; KIMURA, Keiichiro2000-12-18T15:00:00Z生産企業における在庫構造特性に関する研究
http://hdl.handle.net/11133/2250
タイトル: 生産企業における在庫構造特性に関する研究
著者: 奥村, 文徳; OKUMURA, Fuminori2001-02-26T15:00:00Z