Search for dissertations about: "Mats Johnsson"

Showing result 1 - 5 of 19 swedish dissertations containing the words Mats Johnsson.

  1. 1. Preparation and characterisation of refractory whiskers and selected alumina composites

    Author : Mats Carlsson; Mats Johnsson; Tor Grande; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; VLS-growth; Characterisation; Whiskers; Sintering; Ceramic composites; Inorganic chemistry; Oorganisk kemi;

    Abstract : A whisker is a common name of single crystalline inorganic fibre of small dimensions, typically 0.5-1 μm in diameter and 20-50 μm in length. Whiskers are mainly used as reinforcement of ceramics. This work describes the synthesis and characterisation of new whisker types. READ MORE

  2. 2. A critical survey of the grain refining mechanisms of aluminium

    Author : Mats Johnsson; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; strukturkemi; Structural Chemistry;

    Abstract : In the present work, several possible interpretations of the grain refining mechanisms of aluminium castings after additions of titanium and boron are compared with the results of critical test experiments. The presence of B does not seem to affect the binary Al-Ti phase diagram close to the A1 comer, except for formation of boride phase. READ MORE

  3. 3. Modeling, Implementation and Evaluation of IP Network Bandwidth Measurement Methods

    Author : Andreas Johnsson; Mats Björkman; Bob Melander; Gábor Vattay; Mälardalens högskola; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Computer networks; Bandwidth measurement; Wireless networks; Computer science; Datavetenskap; Datavetenskap;

    Abstract : Internet has gained much popularity among the public since the mid 1990's and is now an integrated part of our society. A large range of high-speedbroadband providers and the development of new and more efficient Internet applications increase the possibilities to watch movies and live TV, use IP-telephony and share files over the Internet. READ MORE

  4. 4. Trust in Biobank Research : Meaning and Moral Significance

    Author : Linus Johnsson; Mats G. Hansson; Gert Helgesson; Stefan Eriksson; Berge Solberg; Uppsala universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biobank; biobank research; bioethics; biobank ethics; research ethics; trust; trustworthiness; moral responsibility; informed consent; ethics review; ethics guidelines; Bioetik; Bioethics;

    Abstract : What role should trust have in biobank research? Is it a scarce resource to be cultivated, or does its moral significance lie elsewhere? How does it relate to the researcher’s individual responsibility?In this thesis I draw four general conclusions. First, trust is still very much present in at least some biobanking settings, notably in Sweden, but possibly also internationally. READ MORE

  5. 5. Terminating species and Lewis acid-base preference in oxohalides – a new route to low-dimensional compounds

    Author : Richard Becker; Mats Johnsson; Jean Galy; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Low dimensionality; crystal structures; tellurites; selenites; oxohalides; Inorganic chemistry; Oorganisk kemi;

    Abstract : This thesis is based upon synthesis and structure determination of new transition metal oxo-halide compounds, which includes p-element cations that have a stereochemically active lone pair. A synthesis concept has been developed, which uses several different structural features to increase the possibility to yield a low-dimensional arrangement of transition metal cations. READ MORE