Search for dissertations about: "LIF"

Showing result 1 - 5 of 120 swedish dissertations containing the word LIF.

  1. 1. Analysis of the time and humidity-dependent mechanical behaviour of paper webs at offset printing preess conditions

    Author : Jan Lif; KTH; []
    Keywords : creep; deformation; dynamic test; ;

    Abstract : This thesis deals with the time, frequency andhumidity-dependent mechanical behaviour of paper webs at offsetprinting press conditions. How the paper web, the set-up andrunning conditions alter press performance is not fullyunderstood, and are difficult to isolate and investigateexperimentally. READ MORE

  2. 2. Adding usability : Methods for modelling, user interface design and evaluation

    Author : Magnus Lif; Uppsala universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Materials science; Modelling; analysis; design; evaluation; user interface; human computer interaction; system development; usability; utility; methods; workspace; iterative; designer; Materialvetenskap; Materials science; Teknisk materialvetenskap; datavetenskap med inriktning människa-datorinteraktion; Computer Science; human-computer interaction;

    Abstract : Many system development projects fail to provide information systems with high usability. This thesis focuses on how to solve this problem by introducing methods for modelling, user interface design and evaluation. These methods are primarily designed to serve as complements to existing methods for systems development. READ MORE

  3. 3. The Use of 2D and 3D Displays in Military Settings

    Author : Patrik Lif; Leo Poom; Kip Smith; Uppsala universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; visuell perception; 3D; displays; spatial cues; Psychology; Psykologi;

    Abstract : The purpose of this thesis is to evaluate the possibilities of using 3D perspective displays in different military settings, and to illustrate the limitations of 3D displays, that is, when 2D displays are to be preferred. More specifically, this thesis explores (a) readability during vibrations, (b) perception aspects on perspective aircraft displays, and (c) the value of spatial cues in 3D air traffic displays in military settings. READ MORE

  4. 4. Water-in-diesel emulsion and microemulsion fuels: composition, structure and effect on emissions

    Author : Anna Lif; Chalmers University of Technology; []
    Keywords : NOx; microemulsion; combustion; diffusometry; alternative fuels; emission; emulsion; Fischer-Tropsch; MFC; PM; microfibrillated cellulose; NMR; surfactant; soot; diesel;

    Abstract : Water-in-diesel fuels, as emulsions and microemulsions, give reduced emissions of nitrogen oxides (NOx) and particulate matter (PM) in combustion in diesel engines compared to regular diesel. These fuels can contribute to an improved local environment in densely populated areas as they can replace regular diesel in existing vehicles without any engine modification requirements. READ MORE

  5. 5. Water-in-diesel emulsion and microemulsion fuels -The effect of water on emission levels

    Author : Anna Lif; Chalmers University of Technology; []
    Keywords : Combustion; Diesel; Soot; NMR; Microemulsion; PM; Emulsion; Surfactant; NOx; Diffusometry; Alternative fuels; Emission;

    Abstract : Water-in-diesel emulsions are known as environmentally favourable alternatives to conventional diesel fuel. Introducing water into the combustion results in reduced emissions of the health hazardous components nitrogen oxide (NOx) and particulate matter (PM). The concept of using emulsions is advantageous as it is easy to replace regular diesel. READ MORE