Sökning: "rate matching"

Visar resultat 16 - 20 av 113 avhandlingar innehållade orden rate matching.

  1. 16. Poled fiber devices

    Författare :Niklas Myrén; Fredrik Laurell; Faman Kashyap; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; optical physics; Poling; twin-hole fiber; fiber electrodes; silver film electrodes; silver diffusion; quasi-phase matching; optical switching; frequency conversion; optical modulation; Fysik; Physics; Fysik;

    Sammanfattning : The topic of this thesis is the development of devices for telecom applications based on poled optical fibers. The focus is on a specific function, optical switching/modulation. Some of the most important results are summarized below. Optical switching at telecom wavelengths (1. LÄS MER

  3. 17. All Digital Polar Transmitter Design for Software Defined Radio : Architecture and Low Power Circuit Implementation

    Författare :Liang Rong; Li-Rong Zheng; Henrik Sjöland; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Switching Power Amplifier; All Digital Polar Transmitter; Lowpass Sigma Delta Modulation; Software Defined Radio; RFID; H-Bridge Architecture; Resonating; Filter Matching Network.; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Sammanfattning : The evolving wireless communication technology is aiming highdata rate, high mobility, long distance and at the meantime, co-existwith various different standards. This developing trend requires ahighly linear transceiver system and it causes the problem of lowefficiency due to the large crest factor of signals. LÄS MER

  4. 18. Network Disruption and Turbulence in Fibre Suspensions

    Författare :Sven Andersson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; transition; friction; refractive index matching; Laser Doppler Anemometry LDA ; boundary-layer; Computational Fluid Dynamics CFD ; medium consistency MC ; network strength; fluidisation; pulp; suspension; fibres;

    Sammanfattning : The production of paper pulp involves the handling of large quantities of fibre suspensions. Today's call for energy efficiency and environmentally sound processes has led to the development of MC (Medium Consistency) technology. LÄS MER

  5. 19. Outcome of treatment for scoliosis. A multi-disciplinary follow-up at least 20 years after surgery or brace treatment in patients with adolescent idiopathic scoliosis with comparison to a matching control group

    Författare :Aina Danielsson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; scoliosis; spinal fusion; brace treatment; radiography; magnetic resonance imaging; osteoarthritis; spirometry; outcome studies; quality of life;

    Sammanfattning : Introduction: The long term outcome of treatment for adolescent idiopathic scoliosis (AIS), with brace or surgery, has previously not been fully established.Aims: To evaluate the outcome in terms of radiological appearance, degenerative changes, pulmonary function and different aspects of health related quality of life at least twenty years after completed treatment. LÄS MER

  7. 20. Essays in Public Finance and Behavioral Economics

    Författare :Arnaldur Stefánsson; Per Engström; Eva Mörk; Mats Persson; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Frisch elasticity of labor supply; identification; elasticity heterogeneity; tax compliance; loss aversion; prospect theory; benefit take-up; similarity; distributive justice; moral decision-making; ambiguity attitudes; framing; consistency of choice; Economics; Nationalekonomi;

    Sammanfattning : Essay I: I study how individuals adjust their labor supply in response to a year with tax free income. Due to a transformation from a retroactive to a pay-as-you-earn tax system, income earned on the Icelandic labor market in 1987 was never taxed. LÄS MER