Sökning: "Jan Jonsson"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Jan Jonsson.

  1. 1. Construction site productivity measurements selection, application and evaluation of methods and measures

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Jan Jonsson; [1996]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Construction Engineering and Management; Byggproduktion;

    Sammanfattning : A construction company consists of a number of different sites where the physical production is taking place. This production is not always performed in the best possible way. There are numerous things such as organisation, logistics, co-ordination, technique, quality and others that can be improved. LÄS MER

  2. 2. Smoothed Particle Hydrodynamic of Hydraulic Jumps in Spillways

    Detta är en avhandling från Luleå tekniska universitet

    Författare :Patrick Jonsson; Luleå tekniska universitet.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : This thesis focus on the complex natural phenomena of hydraulic jumps using the numerical method Smoothed Particle Hydrodynamics (SPH). A hydraulic jump is highly turbulent and associated with turbulent energy dissipation, air entrainment, surface waves and spray and strong dissipative processes. LÄS MER

  3. 3. Natural gas in the Asian Pacific region : market behavior and the Japanese electricity market

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Bo Jonsson; Luleå tekniska universitet.; [2001]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

    Sammanfattning : This dissertation consists of four main chapters, all related to the Asian Pacific natural gas market, and the role of the Japanese electricity sector. The natural gas market in Asia Pacific is heavily dependent on the demand from Japan, which imports around 75% of the gas traded as LNG (liquefied natural gas) in the region. LÄS MER

  4. 4. Mångsynthet och mångfald om lärarstudenters förståelse av och undervisning för hållbar utveckling

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Gunnar Jonsson; Luleå tekniska universitet.; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Sammanfattning : This thesis focuses on complex understanding of sustainable development: what it is, how it can be understood by student teachers, and what affects the complexity that is discernible among pupils taught by student teachers. Three different substudies based on one another, give answers to the research questions. LÄS MER

  5. 5. The Euclidean traveling salesman problem with neighborhoods and a connecting fence

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Håkan Jonsson; Luleå tekniska universitet.; [2000]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dependable Communication and Computation Systems; Kommunikations- och beräkningssystem;

    Sammanfattning : An important class of problems in robotics deals with the planning of paths. In this thesis, we study this class of problems from an algorithmic point of view by considering cases where we have complete knowledge of the environment and each solution must ensure that a point-sized robot capable of moving continuously and turning arbitrarily accomplishes the following: (1) visits a given set of objects attached to an impenetrable simple polygon in the plane, and (2) travels along a path of minimum length over all the possible paths that visit the objects without crossing the polygon. LÄS MER