Sökning: "Per Andersson"

Visar resultat 1 - 5 av 199 avhandlingar innehållade orden Per Andersson.

  1. 1. 231Pa and Th isotopes as tracers of deep water ventilation and scavenging in the Mediterranean Sea

    Författare :Sandra Gdaniec; Carl-MAgnus Mörth; Per Andersson; Helen Coxall; Per Roos; Carl-Magnus Mörth; Per Anerson; Matthieu Roy-Barman; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; 231Pa; 230Th; 232Th; Mediterranean Sea; scavenging; deep water ventilation; geokemi; Geochemistry; Protactinium; Thorium; particle transport; deep water circulation;

    Sammanfattning : The naturally occurring isotopes 231Pa and 230Th are used as tracers of marine biogeochemical processes. They are both produced from the radioactive decay of their uniformly distributed uranium parents (235U and 234U) in seawater. LÄS MER

  2. 2. Multi-year maintenance optimisation for paved public roads - segment based modelling and price-directive decomposition

    Författare :Per-Åke Andersson; Per Olov Lindberg; Torbjörn Larsson; Jonathan Bard; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; road maintenance optimisation; price-directive decomposition; Optimization; systems theory; Optimeringslära; systemteori;

    Sammanfattning : I avhandlingen studeras hur kostnadseffektiva underhålls- (uh-)planer för belagd väg kan genereras, på basis av information om aktuellt vägytetillstånd och funktionella modeller för kostnads- och tillståndsförändringar, delvis utvecklade i samarbete med svenska Vägverket (VV). Tilltänkt användning är på strategisk och programnivå, innan mer detaljerad objektinformation finns att tillgå. LÄS MER

  3. 3. New ways of learning : Participatory action research and Kenyan runners’ appropriation of smartphones to improve their daily lives and participation in m-learning

    Författare :Per-Olof Hansson; Per Andersson; Elin Wihlborg; Rodderick Fox; Linköpings universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SOCIAL SCIENCES; Participatory action research; m-learning; sociocultural perspective; Deltagande aktionsforskning; mobilt lärande; sociokulturellt perspektiv;

    Sammanfattning : In Kenya, mobile technology is widely used, with more and more people gaining access to the Internet. Mobile technology has the potential to support learning and improve lives, particular those of impoverished people. In this study, 30 Kenyan runners from poor backgrounds and with limited formal education participated. LÄS MER

  4. 4. Activation measurements of neutron-capture cross sections in the MeV region

    Författare :Per Andersson; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:1985:Andersson;

    Sammanfattning : [abstract missing].... LÄS MER

  5. 5. Efficient Modelling and Synthesis of Data Intensive Reconfigurable Systems

    Författare :Per Andersson; Institutionen för datavetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; kontroll; Systems engineering; numerisk analys; system; control; Datalogi; numerical analysis; systems; Data Flow Graphs; Data Flow Modlling; computer technology; Data- och systemvetenskap; Computer science; Hardware Compilation; Synthesis;

    Sammanfattning : Digital systems are integrated in our environment and have become a natural part of our every day life. As we rely more on these systems our expectations on them increases. We expect them to perform new tasks, communicate and cooperate. The complexity of these systems are increasing. LÄS MER