Sökning: "Hierarchical Systems"

Visar resultat 21 - 25 av 250 avhandlingar innehållade orden Hierarchical Systems.

  1. 21. Spatial analysis and modeling of urban transportation networks

    Författare :Jingyi Lin; Yifang Ban; Sten Henning Hansen; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Complex networks; transportation systems; network growth; Evolving networks; centrality; urban systems; topology; space syntax; spatial networks; distance effects; gravity laws; planarity; street network patterns; US airline system; China’s aviation system; network efficiency; cellular structure; hierarchy; network representations; Geodesy and Geoinformatics; Geodesi och geoinformatik;

    Sammanfattning : Transport systems in general, and urban transportation systems in particular, are the backbone of a country or a city, therefore play an intrinsic role in the socio-economic development. There have been numerous studies on real transportation systems from multiple fileds, including geography, urban planning, and engineering. LÄS MER

  3. 22. Incremental and Hierarchical Deadlock-Free Control of Discrete Event Systems with Variables: A Symbolic and Inductive Approach

    Författare :Mohammad Reza Shoaei; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Discrete event systems; IC3; large-scale systems; model checking; incremental control; supervisory control; hierarchical control; maximal permissiveness;

    Sammanfattning : Today's industry trend towards agile product development cycles and the ambition to shorten the time-to-market, represents an extremely competitive marketplace. This has driven the industry to use very complex and highly flexible manufacturing systems. LÄS MER

  4. 23. Deadlock Free Routing in Mesh Networks on Chip with Regions

    Författare :Rickard Holsmark; Shashi Kumar; Petru Eles; Axel Jantsch; Jönköping University; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Networks on Chip; Mesh Topology; Routing Algorithms; Wormhole Switching; Deadlock; Application Specific Routing; Systems engineering; Systemteknik; TECHNOLOGY;

    Sammanfattning : There is a seemingly endless miniaturization of electronic components, which has enabled designers to build sophisticated computing structureson silicon chips. Consequently, electronic systems are continuously improving with new and more advanced functionalities. LÄS MER

  5. 24. Topics in Dynamic Spectrum Access : Market Based Spectrum Sharing and Secondary User Access in Radar Bands

    Författare :Miurel Tercero Vargas; Jens Zander; Mikael Prytz; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; spectrum sharing; radar band; cognitive radio; Telecommunication; Telekommunikation; Systems engineering; Systemteknik;

    Sammanfattning : The steady growth in demand for spectrum has increased research interest in dynamic spectrum access schemes. This thesis studies some challenges in dynamic spectrum access based on two strategies: open sharing and hierarchical access. LÄS MER

  7. 25. On Dependability in Distributed Computerized Manufacturing Systems

    Författare :Anders Adlemo; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; General Recursive System; availability; dependability; fault tolerance; reliability; manufacturing systems; computer systems;

    Sammanfattning : The concepts of dependability, fault tolerance, reliability and availability concerning computer systems had already emerged by the 1950's. These concepts were initially used in the area of computer hardware, but were then applied to the area of software and later to applications. LÄS MER