Sökning: "defects"

Visar resultat 1 - 5 av 1263 avhandlingar innehållade ordet defects.

  1. 1. Orsaker till fel i byggandet: en studie om felorsaker, felkonsekvenser, samt hinder för inlärning i byggprojekt

    Författare :Per-Erik Josephson; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; consequences of defects; causes of defects; organisational behaviour; organisational learning; building project; quality; temporary organisations; defects; costs of defects;

    Sammanfattning : One means of increasing the effectiveness of building is minimisation of the numbers of de-fects and their consequences. In order to accomplish this, it is necessary to have knowledge of why defects occur, of their consequences, and of how to learn from errors. LÄS MER

  2. 2. Characteristics of cast magnesium alloys : microstructures, defects and mechanical properties

    Författare :Haiping Cao; Anders Jarfors; Linköpings universitet; []
    Nyckelord :Mg alloys; microstructure; mechanical properties; defects; modelling; segregation bands; hot tear; mould constraint; semi-solid casting.; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Magnesium is the lightest of all structural metals. As such, and combined  with good mechanical and physical properties, it forms the basis for commercial alloys that have found successful use in a wide variety of applications. LÄS MER

  3. 3. Point Defects in Silicon and Silicon-Carbide

    Författare :Paolo Pellegrino; KTH; []
    Nyckelord :silicon; silicon carbide; defects; dlts;

    Sammanfattning : .... LÄS MER

  4. 4. Defects in Bismuth Vanadate: Insights from First Principles

    Författare :Nicklas Österbacka; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; defects; oxides; semiconductors; density functional theory;

    Sammanfattning : Photoelectrochemical water splitting is an attractive technique for sustainable hydrogen production, but its efficiency is heavily dependent on the properties of the semiconducting photoelectrodes used in the process. These properties are intimately connected to the presence of point defects in the materials, and understanding this relationship is a key step towards the development of better photoabsorbers. LÄS MER

  5. 5. Defects and Impurities in CdTe : An ab Initio Study

    Författare :Anna Lindström; Mattias Klintenerg; Susanne Mirbt; Biplab Sanyal; Peter Zahn; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Native defects; Compensation mechanisms; Semiconductor doping; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Sammanfattning : In this thesis defects and impurities in CdTe have been studied with ab initio methods. CdTe is a II-VI semiconductor with many important applications such as γ- and X-ray detectors, solar cells and medical imaging. LÄS MER