Sökning: "Institutionen För Teknik Och Hållbar Utveckling Mittuniversitetet"

Visar resultat 11 - 15 av 23 avhandlingar innehållade orden Institutionen För Teknik Och Hållbar Utveckling Mittuniversitetet.

  1. 11. Primary energy efficiency and CO2 mitigation in residential buildings

    Författare :Anna Joelsson; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental engineering; Miljöteknik;

    Sammanfattning : In order to control climate change it is important to limit the atmosphericconcentration of carbon dioxide (CO2). Increased energy efficiency, as well as ashift from fossil fuels to renewable resources can reduce net CO2 emission. LÄS MER

  3. 12. Interfacial kinetic ski friction

    Författare :Leonid Kuzmin; Mats Tinnsten; Jonas Danvid; Mikael Jonsson; Roland Larsson; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ski glide; ski base; ski wax; hydrophobicity; UHMWPE; PTFE; topography; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : It is no doubt, that the ski glide over the snow is a very complicated object of research. However, ski glide is just a one area of many other areas of human knowledge. As a rule, the scientists and practitioners, who work in these areas, operate with some publicly expressed more or less solid hypotheses. LÄS MER

  4. 13. Forest-Fuel Systems : Comparative Analyses in a Life Cycle Perspective

    Författare :Lisa Näslund Eriksson; Leif Gustavsson; Antti Asikainen; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; forest fuels; recovery systems; transportation; cost; primary energy use; CO2 emission; forest-fuel potential; life cycle perspective; Environmental engineering; Miljöteknik;

    Sammanfattning : Forest fuels can be recovered, stored and handled in several ways and these different ways have different implications for CO2 emissions. In this thesis, comparative analyses were made on different forest-fuel systems. The analyses focused on the recovery and transport systems. LÄS MER

  5. 14. On Optimization of Injection Molding Cooling

    Författare :Lars-Erik Rännar; Claes-Göran Gustafson; Mats Tinnsten; Antal Boldizar; Krister Djurner; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; free-fom fabrication; injection molding; simulation; optimization; cooling; rapid tooling; warpage; Other engineering mechanics; Övrig teknisk mekanik;

    Sammanfattning : .... LÄS MER

  7. 15. Utilization of cellulosic biomass towards sustainable chemicals and novel biomaterials

    Författare :Jiayi Yang; Magnus Norgren; Håkan Edlund; Fardim Pedro; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : It is predicted by the United Nations that by year 2030 the world will need at least 50 percent more food, 45 percent more energy and 30 percent more water. The emissions of carbon dioxide from combustion of fossil fuels and waste are also increasing. LÄS MER