Sökning: "nanomechanics"

Hittade 4 avhandlingar innehållade ordet nanomechanics.

  1. 1. Nanomechanics – Quantum Size Effects, Contacts, and Triboelectricity

    Författare :Martin Olsen; Jonas Örtegren; Håkan Olin; Per Gradin; Peter Glans; Rusen Yang; Mittuniversitetet; []
    Nyckelord :triboelectricity; adatom; ion; charge; mound; quantum size effect; triboelctric nanogenerator; TENG; wind driven; contact; nanomechanics; fri electron model; nanowire cantilever;

    Sammanfattning : Nanomechanics is different from the mechanics that we experience in everyday life. At the nano-scale, typically defined as 1 to 100 nanometers, some phenomena are of crucial importance, while the same phenomena can be completely neglected on a larger scale. LÄS MER

  3. 2. Relaxation and Resonance in Brownian Motion-Coupled Resonators

    Författare :Christin Rhen; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; nonequilibrium dynamics; nonlinear dynamics; resonance; nanomechanics; relaxation; superconducting circuits.; resonator; dispersive coupling; noise; Brownian motion;

    Sammanfattning : In physics, there exists a number of paradigm systems – exactly solvable models that can represent a wide variety of physical realizations. My research is concerned with two of these paradigm systems: the harmonic oscillator and Brownian motion. LÄS MER

  4. 3. Measuring quantum systems with a tunnel junction

    Författare :Joachim Wabnig; Jörgen Rammer; Ulrich Eckern; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum mechanics; quantum measurement; tunnel junction; qubit; nanomechanics; noise; Physics; Fysik;

    Sammanfattning : This thesis is concerned with employing the statistics of charge transfer in a conductor as a tool for quantum measurement. The physical systems studied are electronic devices made by nanoscale manufacturing techniques. In this context quantum measurement appears not as a postulate, but as physical process. LÄS MER

  5. 4. Atomic force microscopic studies of inner ear structure and mechanics

    Författare :Alexandra Zelenskaya; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Atomic force microscopy; indentation curves; mechanical properties; outer hair cells; shell-core model; electromotility; prestin; otoconia; tympanic membrane.;

    Sammanfattning : The transduction processes occurring in the inner ear, from sound induced vibration or head movements to nerve impulses sent to the brain, are to a large part dependent on the mechanical properties of the different components of this organ, especially the sensory hair cells. The function of the hearing organ is for example dependent on the unique mechanoelectric transduction properties of the cochlear outer hair cells (OHCs), which are able to respond to electrophysiological and mechanical stimulations by changing their shape and their mechanical properties. LÄS MER