Search for dissertations about: "decay rate"

Showing result 1 - 5 of 89 swedish dissertations containing the words decay rate.

  1. 1. Time-dependent relaxation of charge and energy in electronic nanosystems

    Author : Jens Schulenborg; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; heat current; quantum dot; relaxation rate; rate detection; generalization of hermiticity; nonunitary dynamics; open quantum system; Coulomb charging energy; voltage switch; transient response; electronic nanosystem;

    Abstract : The study of the dynamics of strongly confined, interacting open quantum systems has attracted great interest over the past years, due to potential applications in nanoelectronics, metrology as well as quantum information. Most recent experimental and theoretical research in this field has shifted attention towards electronic heat currents, recognizing their potential for practical purposes as well as for tests of fundamental theories, and also aiming to control the inevitable heat dissipation of any dynamically operated electronic device. READ MORE

  2. 2. Surface Charge Dynamics on Polymeric Insulating Materials for High Voltage Applications

    Author : Shahid Alam; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC insulation.; gas neutralization; decay rate; Surface charging; electrical conductivity; surface potential; charge transport; ambient pressure;

    Abstract : To meet increasing demands in electric energy, it is essential to enhance production of electricity from renewable energy sources (solar, wind and hydro). Such generation sites, however, are usually separated from consumption sites by long distances. READ MORE

  3. 3. Durability of timber members : Moisture conditions and service life assessment of bridge detailing

    University dissertation from Faculty of Engineering, Lund University

    Author : Jonas Niklewski; Lunds universitet.; Lund University.; [2018-11-23]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wood; spruce; moisture; durability; decay; service life; detailing; model;

    Abstract : The longevity of timber structures in exposed outdoor environments is often perceived to be unreliable as compared with that of concrete and steel structures. This situation is exacerbated to some extent by the fact that the European commission for standardization (CEN) currently provides no quantitative method for service life assessment of timber structures. READ MORE

  4. 4. Topics in Simulation and Stochastic Analysis

    University dissertation from Centre for Mathematical Sciences, Lund University

    Author : Mikael Signahl; Lunds universitet.; Lund University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik; stochastic heat equation; stochastic wave equation; error rates; truncated Levy process; discontinuities; optimal decay rate; digital communication system;

    Abstract : Paper A investigates how to simulate a differentiated mean in cases where interchanging differentiation and expectation is not allowed. Three approaches are available, finite differences (FD's), infinitesimal perturbation analysis (IPA) and the likelihood ratio score function (LRSF) method. READ MORE

  5. 5. On space-time means for solutions of nonlinear Klein-Gordon equations

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Håkan Blomqvist; Göteborgs universitet.; Gothenburg University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; nonlinear Klein-Gordon equation; linear Klein-Gordon equation; asymptotic properties; rate of decay; boundedness of space-time means; properties inherited from the corresponding linear case; nonlinear Volterra integral inequality with singular kernel;

    Abstract : .... READ MORE