Search for dissertations about: "negative index"

Showing result 1 - 5 of 259 swedish dissertations containing the words negative index.

  2. 1. Dispersion Engineering : Negative Refraction and Designed Surface Plasmons in Periodic Structures

    Author : Zhichao Ruan; Min Qiu; Henri Benisty; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; photonic crystal; dispersion property; negative refraction; surface plasmon polariton; designed surface plasmon; negative index material; layer-KKR method; finite-difference time-domain method; plane wave method; subwavelength imaging; open cavity; enhanced transmission; slowing light; Photonics; Fotonik;

    Abstract : The dispersion property of periodic structures is a hot research topic in the last decade. By exploiting dispersion properties, one can manipulate the propagation of electromagnetic waves, and produce effects that do not exist in conventional materials. READ MORE

  4. 2. Negative effects of Internet-based cognitive behavior therapy : Monitoring and reporting deterioration and adverse and unwanted events

    Author : Alexander Rozental; Per Carlbring; Gerhard Andersson; Johanna Boettcher; Adam Radomsky; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Negative effects; Internet-based cognitive behavior therapy; deterioration; non-response; adverse and unwanted events; qualitative content analysis; individual patient data meta-analysis; exploratory factor analysis; Negative Effects Questionnaire; Negativa effekter; Internetbaserad kognitiv beteendeterapi; försämring; oförändrat tillstånd; ogynnsamma eller oönskade händelser; kvalitativ innehållsanalys; individuell patient meta-analys; explorativ faktoranalys; Negative Effects Questionnaire; Psychology; psykologi;

    Abstract : Internet-based cognitive behavior therapy (ICBT) has the potential of providing many patients with an effective form of psychological treatment. However, despite helping to improve mental health and well-being, far from everyone seem to benefit. In some cases, negative effects may also emerge. READ MORE

  5. 3. Wave propagation in graded material composites with extraordinary properties

    Author : Brage B. Svendsen; Mariana Dalarsson; Martin Norgren; Astrid Aksnes; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; gradient-index; waveguides; gold nanoparticles; cancer treatment; left-handed media; negative index materials; metamaterials; Electrical Engineering; Elektro- och systemteknik;

    Abstract : I denna avhandling studeras elektromagnetisk vågutbredning i graderade materialkompositer med extraordinära egenskaper. Två sådana materialkompositsystem studeras särskilt, med hjälp av både analytiska och beräkningstekniska elektromagnetiska metoder. READ MORE

  6. 4. Essays on total factor productivity (TFP)

    Author : Pontus Mattsson; Jonas Månsson; Lars Behrenz; Linnéuniversitetet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; conditional difference-in-difference cDID ; Data Envelopment Analysis DEA ; District courts; Malmquist index; subsidized employment; Total factor productivity TFP ; Törnqvist TFP index; Economics; Nationalekonomi;

    Abstract : This thesis consists of two self-contained empirical essays. Essay I investigates the impact of labor subsidies on TFP, and profit per employee is included as a second outcome. Coarsened exact matching (CEM) is performed on the key variables. After matching, a difference-in-difference (DID) model is applied. READ MORE

  7. 5. Essays on Efficiency, Productivity, and Impact of Policy

    Author : Pontus Mattsson; Jonas Månsson; Lars Behrenz; Almas Heshmati; Linnéuniversitetet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; conditional difference-in-differences cDiD ; courts; data envelopment analysis DEA ; Malmquist index; horizontal mergers; impacts of policy; stochastic frontier analysis SFA ; subsidized employment; total factor productivity TFP ; Törnqvist TFP index; Economics; Nationalekonomi;

    Abstract : This thesis consists of five self-contained empirical essays centering on total factor productivity (TFP), efficiency, and impacts of policy.Essay I: “TFP Change and Its Components for Swedish Manufacturing Firms During the 2008-2009 Financial Crisis” (co-authored with Jonas Månsson and William H. Greene). READ MORE