Sökning: "fas tre"

Visar resultat 1 - 5 av 66 avhandlingar innehållade orden fas tre.

  1. 1. Microphase Separated Cation Conducting Polymers : Design, Synthesis, and Properties

    Författare :Hannes Nederstedt; Centrum för analys och syntes; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Polymer; Litiumbatteri; Mikrofasseparering; Bränslceller; Elektrolyt; Polymerelektrolyt; Polymera bränslecellsmembran; Polymer electrolyte fuel cells; Polymer electrolyte; Polymer electrolyte membrane; Microphase separation; Lithium battery; Polymer; Fuel cell; Proton exchange membrane PEM ;

    Sammanfattning : This thesis describes the synthesis and properties of five different cation conducting polymer systems. These systems were designed so that the polymers would be able to microphase separate into distinct phases with one phase for mechanical strength and one for ionic conductivity. LÄS MER

  3. 2. Exploring organizational translation : A case study of changes toward Lean Production

    Författare :Jostein Langstrand; Mattias Elg; Bo Bergman; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Organizational change; Lean Production; Organizational translation; Organisatorisk förändring; lean; organisatorisk översättning;

    Sammanfattning : Lean Production has received massive attention during recent years, and many organizations attempt to introduce it with an ambition to reach the radical improvement effects that are promised in the popular management literature. However, introducing a management concept can be a very challenging task, and research has shown that the majority of such initiatives fail. LÄS MER

  4. 3. Towards Sustainable Improvement Systems

    Författare :Dag Swartling; Lars Witell; Bozena Poksinska; Yvonne Lagrosen; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Improvements in general and sustainable improvements in particular are problematic areas. The failure rate is high, figures in the vicinity of 70 percent are often mentioned, but why is it so difficult to achieve sustainable improvement systems? The purpose of this dissertation is to contribute to understanding of the process and its mechanisms in creating a sustainable improvement system. LÄS MER

  5. 4. Bokstavliga svårigheter - faktorer som påverkar gymnasieelevers algebralärande

    Författare :Per-Eskil Persson; Malmö högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; algebra; gymnasium; begreppsutveckling; attityder; aktionsforskning; Mathematics Education;

    Sammanfattning : I en longitudinell studie undersöks vilka faktorer som påverkar hur elever på ett gymnasiums naturvetenskaps- och teknikprogram lär sig algebra. En årskull elevers begreppsutveckling följs under deras tre gymnasieår med hjälp av tester, enkäter och intervjuer, och de bestående kunskaperna efter gymnasietiden noteras. LÄS MER

  7. 5. Public procurement of engineering services : Task characteristics, control modes and effects on adaptability

    Författare :Klara Granheimer; Tina Karrbom Gustavsson; Per-Erik Eriksson; Göran Lindahl; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; client; construction management; engineering services; organizational control; public procurement; beställare; infrastrukturprojekt; offentlig upphandling; organisationsteori; tekniska konsulttjänster; Real Estate and Construction Management; Fastigheter och byggande;

    Sammanfattning : Previous research has emphasized the importance of engineering services and adaptability in the early stages of construction projects. Public clients usually procure engineering services from private companies, which makes their procurement strategies important in creating incentives for adaptability and innovation for the service providers. LÄS MER