Sökning: "momentum"

Visar resultat 11 - 15 av 433 avhandlingar innehållade ordet momentum.

  1. 11. On the Importance of Accounting Information for Stock Market Efficiency

    Författare :Jiri Novak; Jan-Erik Gröjer; Mattias Hamberg; Mats Åkerblom; Colin Clubb; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Business studies; accounting; capital makets; efficiency; momentum; liquidity; accounting conservatism; transitory earnings; IFRS; goodwill; Sweden; Företagsekonomi; Business studies; Företagsekonomi;

    Sammanfattning : This thesis contributes to the discussion on the importance of accounting information for stock market efficiency. As any analysis of market efficiency depends on the use of adequate risk proxies, the thesis first investigates the ability of commonly used risk factors to explain the cross-sectional variation of Swedish stock returns. LÄS MER

  3. 12. Modelling of packed bed distillation column

    Författare :Anders Karlström; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; experimental validation; quality control; distributed parameter; Hankel norm; modelling; Distillation; model reduction; heat transfer; inferential measurements; least squares; momentum;

    Sammanfattning : .... LÄS MER

  4. 13. Optical metasurfaces for momentum exchange between light and matter

    Författare :Mohammad Mahdi Shanei; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; optical forces and torques; phase-gradient metasurface; particle transport; optical momentum exchange; Flat optics; rotary meta-motor; meta-particle;

    Sammanfattning : Light carries energy and momentum that can be transferred to matter. Because of the conservation of total momentum, a change in light momentum due to interaction with an object must be compensated by an equal but opposite change in the momentum of that object. LÄS MER

  5. 14. All-Fiber System for Photonic States Carrying Orbital Angular Momentum : A Platform for Classical and Quantum Information Processing

    Författare :Alvaro Alarcón; Guilherme B. Xavier; Sebastião de Pádua; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Quantum Communication; Optical communication; Orbital Angular Momentum; Photonic Lantern; Few-mode-fibers;

    Sammanfattning : The protection of confidential data is a fundamental need in the society in which we live. This task becomes more relevant when observing that every day, data traffic increases exponentially, as well as the number of attacks on the telecommunication infra-structure. LÄS MER

  7. 15. Transfer of Angular Momentum in Astrophysical Discs

    Författare :Mattias Wahde; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In this thesis a study of astrophysical discs, with emphasis on galactic discs, is presented. The frictional force acting on a small satellite galaxy, moving on a co-planar circular orbit in a galactic disc, is shown to be only weakly dependent on the velocity dispersion and the self-gravity of the disc. LÄS MER