Sökning: "reducing complexity"

Visar resultat 26 - 30 av 212 avhandlingar innehållade orden reducing complexity.

  1. 26. Quantum Chemistry for Large Systems

    Författare :Elias Rudberg; Pawel Salek; Christian Ochsenfeld; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum chemistry; fast multipole method; density matrix purification; sparse matrices; Theoretical chemistry; Teoretisk kemi;

    Sammanfattning : This thesis deals with quantum chemistry methods for large systems. In particular, the thesis focuses on the efficient construction of the Coulomb and exchange matrices which are important parts of the Fock matrix in Hartree-Fock calculations. LÄS MER

  3. 27. Modelling and Implementation of a vision system for embedded systems

    Författare :Per Andersson; Institutionen för datavetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Today more and more functionality is included in embedded systems, resulting in an increased system complexity. existing design methodologies and design tools are not adequate to deal with this increase in complexity. To overcome these limitations application specific design solutions are more common. LÄS MER

  4. 28. Modeling and Model Reduction in Automotive Systems

    Författare :Oskar Nilsson; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automotive systems; Lambda sensor; Model reduction; Modeling; Engine air path;

    Sammanfattning : The current control design development process in automotive industry and elsewhere involves many expensive experiments and hand-tuning of control parameters. Model based control design is a promising approach to reduce costs and development time. In this process low complexity models are essential. LÄS MER

  5. 29. Dynamic Models for Mechanical Analysis of Synchronous Hydropower Generators

    Författare :David Rondon; Jan-Olov Aidanpää; Timo Holopainen; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rotordynamics; Hydropower; Generator; Curved Beam; Tillting-Pad Bearing; Machine Design; Maskinkonstruktion;

    Sammanfattning : Hydropower generators are essential for providing electricity for daily human activities. For that reason, designing and building reliable generators contributes to a sustainable energy supply market. LÄS MER

  7. 30. Development of Small-Scale Intermodal Freight Transportation in a Systems Context

    Författare :Johan Woxenius; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transport chain; conceptual modelling; barrier; transshipment technology; transportation system; intermodal freight transportation; gateway terminal; combined transport; yransport network; technology implementation;

    Sammanfattning : An intermodal freight transportation system is characterised by the subsequent use of different transportation modes for moving goods stowed into unit loads from the consignor to the consignee. Typically, it involves a wide variety of activities, actors and resources, which implies a certain degree of technological as well as organisational complexity. LÄS MER