Search for dissertations about: "Helena Johnsson"

Showing result 1 - 5 of 7 swedish dissertations containing the words Helena Johnsson.

  1. 1. Plug shear failure in nailed timber connections : avoiding brittle and promoting ductile failures

    Author : Helena Johnsson; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures;

    Abstract : Mechanical timber connections can fail both in a brittle and a ductile manner depending on the joint layout. Plug shear failure in nailed timber connections is a brittle failure mode, which shall be avoided in timber structures. READ MORE

  2. 2. Systematic design of glulam trusses

    Author : Helena Johnsson; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures;

    Abstract : The design of a structure should be regarded as the design of a system. In this licentiate thesis a method (concurrent engineering) for the design of systems is studied parallel with the development of the system itself. READ MORE

  3. 3. Strategic Colonels : The Discretion of Swedish Force Commanders in Afghanistan 2006–2013

    Author : Magnus Johnsson; Maria Heimer; Helena Wockelberg; Jan Ångström; Douglas Brommesson; Uppsala universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; military strategy; policy implementation; discretion; Afghanistan; NATO; ISAF; force commander; military operations;

    Abstract : This dissertation examines the role of military officers as policy implementers by investigating the discretion of Swedish force commanders in the multinational military campaign in Afghanistan between 2006 and 2013. By developing an analytical framework that takes both an outside-in and an inside-out perspective, and that encompasses both the objective implications that structural factors project on force commanders as well as their subjective perceptions of those structural factors, and applying that framework to a range of official documents as well as unique interview data, the thesis describes the discretion that force commanders have had in interpreting, choosing and shaping their mission and concept of operations. READ MORE

  4. 4. Continuous improvement and experience feedback in off-site construction : timber-framed module prefabrication

    Author : John Meiling; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures; Construction Engineering and Management; Byggproduktion;

    Abstract : Continuous improvement implies an incremental, ongoing effort to improve products, services or processes. Some construction companies have chosen to face competition by adopting an off-site construction strategy, one form of which is timber-framed module prefabrication. READ MORE

  5. 5. Industrialised housing design efficiency

    Author : Gustav Jansson; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träbyggnad; Timber Structures;

    Abstract : Industrialised housing has increased its Swedish market share the latest ten years from 2% to 15%. Prefabrication has developed into actual industrialisation, where factories produce not only elements for site assembly, but takes wholesale responsibility for the sales, design, factory production, and assembly of houses. READ MORE