Sökning: "mixed scenarios"

Visar resultat 11 - 15 av 88 avhandlingar innehållade orden mixed scenarios.

  1. 11. Eastern equatorial Pacific bulk sediment properties and paleoceanography since the late Neogene

    Författare :Daniele Reghellin; Helen K. Coxall; Jan Backman; Gerald R. Dickens; Steve Hovan; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Paleoceanography; late Neogene; eastern equatorial Pacific; deep sea sediments; bulk sediment; stable isotopes; surface mixed layer; sediment physical properties; Marine Geology; maringeologi;

    Sammanfattning : Reconstructing eastern equatorial Pacific (EEP) oceanography since the late Neogene (about 8 million years ago, Ma) is a central topic in current paleoceanographic investigations. The reason for this is two-fold. LÄS MER

  3. 12. Postural and Muscular Responses of Car Occupants under Pre-Crash Conditions

    Författare :Ghazaleh Ghaffari; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EMG; vehicle occupant kinematics; pre-crash; evasive maneuvers; lane change; human body model; pre‐pretensioner belt; principal component analysis; linear mixed model;

    Sammanfattning : Advanced integrated safety technologies in modern cars such as collision avoidance intervention and pre-crash activated restraint systems require comprehensive research on how vehicle occupants respond to these systems. The aim of this thesis is to provide insights into car passengers’ body kinematics and muscle activations in representative pre-crash circumstances with respect to two belt configurations (i. LÄS MER

  4. 13. Greenhouse Gas Fluxes and Carbon Sequestration in Young Norway Spruce Stands : The Effects of Fertilization

    Författare :Charlotta Håkansson; Johan Bergh; Per-Ola Hedwall; Monika Strömgren; Anna M. Jensen; Tomas Lundmark; Tobias Rütting; Linnéuniversitetet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; carbon balance; young mixed forests; Picea abies L. Karst. ; Betula spp; chamber measurements; forest floor greenhouse gas fluxes; eddy-flux technology; above ground biomass; carbon dioxide; methane; nitrous oxide; kolbalans; ung blandskog; Picea abies L. Karst. ; Betula spp; kammarmätningar; markflöden av växthusgaser; eddy-fluxteknik; biomassa ovan jord; koldioxid; metan; lustgas; Forestry and Wood Technology; Skog och träteknik;

    Sammanfattning : The enormous challenge of climate change is discussed and debated today because of its major impact on life on Earth. The forests have an important role to play as the plants absorb carbon dioxide (CO2) from the atmosphere through their photosynthesis and the growing tree retain carbon (C). LÄS MER

  5. 14. On computational modeling of sintering based on homogenization

    Författare :Mikael Öhman; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Computational homogenization; Multiscale; Mixed variational formulations; Incompressibility; FE2; Liquid phase sintering;

    Sammanfattning : Liquid-phase sintering is the process where a precompacted powder, “green body”, is heatedto the point where (a part of) the solid material melts, and the specimen shrinks while keeping(almost) net shape. In the case of hardmetal, the microstructure is defined by WC-Co-particleswith large pores, whereby molten Co represents the liquid phase. LÄS MER

  7. 15. Optimisation of Forest Road Investments and the Roundwood Supply Chain

    Författare :Leif Olsson; Mittuniversitetet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Stochastic Programming; Scenario Analysis; Mixed-Integer Linear Programming; Forest Logistics; Upgrading of gravel roads; Business studies; Företagsekonomi; MATHEMATICS; MATEMATIK;

    Sammanfattning : In a pre-study, concerning roundwood freshness, performed by the Forestry Research Institute of Sweden during the spring of 2000, the quality on the forest road network was identified as a major problem for the Swedish forest sector. These problems mostly occur during spring thaw, but also when rains give muddy gravel roads. LÄS MER