Search for dissertations about: "characterisation"

Showing result 1 - 5 of 847 swedish dissertations containing the word characterisation.

  1. 1. Characterisation of Functional Pressing Die Surfaces

    Author : Johan Berglund; Chalmers tekniska högskola.; Chalmers University of Technology.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials science; pressing die; surface topography; characterisation; functional surface; functional filtration; functional correlation; finish milling; polishing; multi-scale analysis; texture anisotropy;

    Abstract : The manufacture of dies and moulds is a critical aspect of many production systems since the manufacturing and try-out of new dies and moulds often is essential in determining the lead-time and quality of a new production system. In the automotive industry, many new car models are introduced each year and for each of these models, a new set of pressing dies has to be designed and manufactured. READ MORE

  2. 2. Friction in metal powder pressing : measurement and characterisation

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Naghi Solimanjad; [2002]
    Keywords : Machine Elements; Maskinelement;

    Abstract : The present work describes different methods for measuring and characterisation of friction in powder compaction process. A new test apparatus has been developed and presented which gives possibility of directly measurement of coefficient of friction during pressing from low to relative high density. READ MORE

  3. 3. InGaAs-based quantum dots for infrared imaging applications : growth and characterisation

    University dissertation from Kista Snabbtryck

    Author : Linda Höglund; Linköpings universitet.; Linköpings universitet.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : In this thesis, results are presented from the development of quantum dot (QD) based infrared photodetectors (IPs). This includes epitaxial growth of QDs, investigations of the structural, optical and electronic properties of the QD based material as well as characterisation of the resulting components. READ MORE

  4. 4. Photonic devices with MQW active material and waveguide gratings modelling and characterisation

    University dissertation from Stockholm : KTH

    Author : Nadeem Akram; KTH.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Method of Lines; Grating; ARROW Waveguide; Semiconductor laser; quantum well; TECHNOLOGY Electrical engineering; electronics and photonics Photonics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Fotonik;

    Abstract : The research work presented in this thesis deals with modelling, design and characterisation of passive and active optical waveguide devices. The rst part of the thesis is related to algorithm development and numerical modelling of planar optical waveguides and gratings using the Method of Lines (MoL). READ MORE

  5. 5. On the dynamics of an hydropower generator subjected to unbalanced magnetic pull : characterisation and analysis

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Yogeshwarsing Calleecharan; Luleå tekniska universitet.; [2010]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hållfasthetslära; Solid Mechanics;

    Abstract : Eccentricity leading to unbalanced magnetic pull (UMP) in rotating electrical machines is a significant concern in industry. The UMP arises due to magnetic flux crossing the air-gap between the rotor and stator, and can be more intense than the useful peripheral force that the machine develops. READ MORE