Search for dissertations about: "2007"

Showing result 1 - 5 of 3697 swedish dissertations containing the word 2007.

  2. 1. Microwave sensors for scanning of sawn timber

    Author : Nils Lundgren; Olle Hagman; Gary Schajer; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microwave scanning; wood; density; moisture content; strength grading; finite element; Electronic measurement and instrumentation; Elektronisk mät- och apparatteknik; Träteknik;

    Abstract : A microwave imaging sensor that measures the signal transmitted through a board was investigated with respect to the ability to predict the distribution of moisture and density in sawn lumber. Furthermore, the response from the sensor was related to strength properties of the boards. READ MORE

  4. 2. Oxygen Carriers Materials for Chemical-Looping Technologies

    Author : Muhammad Qamar Ul Islam Zafar; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Natural gas; Reaction kinetics; Oxygen carriers; Chemical-looping reforming; TGA; Chemical-looping combustion; CO2; Metal oxides;

    Abstract : Carbon dioxide is the gas which contributes most to the greenhouse effect. It is released in large quantities from fossil fuel-based power plants around the world. It is generally accepted that a rapid decrease in the emissions of carbon dioxide is needed. READ MORE

  5. 3. Understanding the visitor : A prerequisite for coastal zone planning

    Author : Rosemarie Ankre; Mittuniversitetet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Conflicts; zoning; visitors; planning; coastal areas; Human geography; economic geography; Kulturgeografi; ekonomisk geografi;

    Abstract : Planning for tourism and outdoor recreation in coastal areas could be improved with knowledge of visitors´ attitudes, experiences, activities and geographical dispersion. The purpose of this thesis is to examine the knowledge of visitors in planning for tourism and outdoor recreation. READ MORE

  6. 4. Guided tourism : the role of guidebooks in German tourist behaviour in Sweden

    Author : Malin Zillinger; Dieter K. Müller; Alan A. Lew; Umeå universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Car-tourists; Guidebooks; Mobility; Place; Power; Round tour; Space; Time geography; Tourist information; Tourism system; Human geography; Kulturgeografi; Business and economics;

    Abstract : Tourism is a spatial phenomenon. Tourist behaviour on-site is not only dependent on the destination itself, but also on the situation in other places, tourists’ spatial mobility and access to information. On the basis of this argument, the whole tourism system is taken into account in this thesis. READ MORE

  7. 5. Influence of paper properties and polymer coatings on barrier properties of greaseproof paper

    Author : Henrik Kjellgren; Gunnar Engström; Lars Järnström; Lennart Stolpe; Torbjörn Helle; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Greaseproof paper; Barrier properties; Gas barrier; Paper properties; Coatings; Chemical engineering; Kemiteknik; Chemical Engineering; Kemiteknik;

    Abstract : Greaseproof paper has a dense structure and therefore provides a natural barrier against materials like fat and oils. The barrier is obtained by extensive refining of the pulp. READ MORE