Search for dissertations about: "space web"

Showing result 6 - 10 of 66 swedish dissertations containing the words space web.

  2. 6. Deployment Control of Spinning Space Webs and Membranes

    Author : Mattias Gärdsback; Anders Eriksson; Gunnar Tibert; Thomas W. Murphey; KTH; []
    Keywords : Flexible structures; space webs; membranes; solar sails; solar power systems; deployment control; optimal control; centrifugal force deployment; spin deployment; rotation-free; shell elements; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Future solar sail and solar power satellite missions require deployment of large and lightweight flexible structures in space. One option is to spin the assembly and use the centrifugal force for deployment, stiffening and stabilization. READ MORE

  4. 7. 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

  5. 8. Structural Design of Laser-Welded Sandwich Panels for Marine Applications

    Author : Hans Kolsters; KTH; []
    Keywords : Sandwich; Laser welding; Web; Core; Stiffness; Elastic Buckling; Ultimate strength; Finite element analysis; Mechanical testing; Optimisation.;

    Abstract : In shipbuilding the replacement of stiffened platestructures by laser-welded sandwich panels offers considerableadvantages for production as well as vessel operation. In viewof reduced weight and space requirements an area of particularinterest is the incorporation of an adhesively bonded core bywhich the stiffness and strength can be substantiallyincreased, and thermal-acoustic insulation can be integrated. READ MORE

  6. 9. Rotation-free shell elements for thin-film structures and simulations of centrifugally deployed spece webs

    Author : Mattias Gärdsback; Anders Eriksson; Andrew Lennon; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rotation-free; shell element; centrifugal force deployment; space web; Other engineering mechanics; Övrig teknisk mekanik;

    Abstract : .... READ MORE

  7. 10. Food Web Ecology -- individual life-histories and ecological processes shape complex communities

    Author : Martin Hartvig; Evolutionär ekologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; food web; community ecology; community assembly; size-structure; life-history omnivory; ontogeny; trophic interactions; trait based model; topology; emergent organisation; size-spectrum;

    Abstract : This thesis sets out a food web framework for size-structured populations. The framework enables an ecological approach to food web modelling as the individual life-history from birth, through maturation, and ultimately death is explicitly resolved with the use of bioenergetics based on individual body size. READ MORE