Sökning: "momentum"

Visar resultat 1 - 5 av 379 avhandlingar innehållade ordet momentum.

  1. 1. On the profitability of momentum strategies and optimal leverage rules

    Författare :Christian Lundström Tjurhufvud; Tomas Sjögren; Sami Vähämaa; Umeå universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Bootstrap; Exchange Traded Products; Kelly criterion; Money management; Opening Range Breakout Strategies; Optimal fraction criterion; Time series momentum; Economics; nationalekonomi;

    Sammanfattning : This thesis consists of an introductory part and five self-contained papers related to the profitability of momentum strategies and optimal leverage rules.Paper [I] tests the success rate of trades and the returns of the Opening Range Breakout (ORB) day trading strategy. LÄS MER

  2. 2. Psychological momentum in handball

    Författare :Karin Moesch; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Performance fluctuations; team sports; nonverbal behaviour; performance; emotional contagion;

    Sammanfattning : This doctoral dissertation deals with a phenomenon that is often referred to in sports, but still poorly understood from a scientific angle: psychological momentum (PM). No consensus has been agreed on how to label this phenomenon, and other terms such as momentum or behavioural momentum (BM) are often used interchangeably. LÄS MER

  3. 3. Probing the Drip-Lines through Momentum Distributions

    Författare :Martin Smedberg; Chalmers University of Technology; []
    Nyckelord :momentum distributions; drip-line; diffraction; 17C; 119C; core shadowing; 6He; neutron stripping; radioactive beams; break-up; intermediate resonance; neutron halo; 8He; 8B; absorption; reaction mechanism;

    Sammanfattning : About a decade ago it was found that nuclei in the vicinity of the neutron drip-line under certain circumstances develop very extended valence neutron distributions, a phenomenon today known as halo states. The recent development of radioactive nuclear beams has provided us with a perfect tool for investigating these particular nuclei. LÄS MER

  4. 4. Momentum exchange between light and nanostructured matter

    Författare :Daniel Andrén; Chalmers University of Technology; []
    Nyckelord :phase-gradient metasurface; optical force and torque; metavehicle; momentum exchange.; nano-optics; rotary nanomotor; optical tweezers;

    Sammanfattning : An object's translational and rotational motion is associated with linear and angular momenta. When multiple objects interact the exchange of momentum dictates the new system's motion. LÄS MER

  5. 5. Ultrafast Photoionization Dynamics Studied with Coincidence Momentum Imaging Spectrometers

    Författare :Yu-Chen Cheng; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Photoionization; High-order Harmonic Generation; Extreme Ultraviolet; Free-Electron Laser; Molecular Dissociation; Charge Transfer; Coincidence Measurement; Momentum Imaging; Electron Wave Packet;

    Sammanfattning : The time scale of the dynamics in atoms and molecules varies from attoseconds (10-18) to picoseconds (10-12) depending on the size of the particles. To study such dynamics, ultrafast light pulses are needed to trigger and capture the reaction. One of the most direct methods consists in ionizing the system and observing the following response. LÄS MER