Sökning: "Fredrik Agrell"

Hittade 3 avhandlingar innehållade orden Fredrik Agrell.

  1. 1. Control of HCCI by aid of variable valve timings

    Författare :Fredrik Agrell; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  2. 2. Control of HCCI by aid of Variable Valve Timings with Specialization in Usage of a Non-Linear Quasi-Static Compensation

    Författare :Fredrik Agrell; Hans-Erik Ångström; Wai K. Cheng; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HCCI; Homogeneous; Charge Compression Ignition; Engine Control; Variable Valve Timings; Other technology; Övriga teknikvetenskaper;

    Sammanfattning : This doctoral thesis is about controlling the combustion timing of the combustion concept Homogeneous Charge Compression Ignition, HCCI, by means of variable valve timings. The HCCI research usually is regarded to have started in Japan during the later part of the 1970´s. The world of HCCI has since grown and HCCI is of today researched worldwide. LÄS MER

  3. 3. Essays on Efficiency, Productivity, and Impact of Policy

    Författare :Pontus Mattsson; Jonas Månsson; Lars Behrenz; Almas Heshmati; Linnéuniversitetet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; 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;

    Sammanfattning : 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). LÄS MER