Search for dissertations about: "Jonas Örtegren"

Showing result 1 - 5 of 6 swedish dissertations containing the words Jonas Örtegren.

  1. 1. Liquid crystalline polymers for nonlinear optics : pyroelectric polymers and ferroelectric dendrimers

    Author : Jonas Örtegren; KTH; []
    Keywords : ;

    Abstract : This thesis deals with liquid crystalline materialsincluding monomers, side-chain polymers, crosslinked polymers,and dendrimers. The materials are pyroelectric, meaning thatthere is a macroscopic electric polarization in the material,which is energetically stable in the absence of externalfields. READ MORE

  2. 2. Low-Cost, Environmentally Friendly Electric Double-Layer Capacitors : Concept, Materials and Production

    Author : Britta Andres; Håkan Olin; Christina Dahlström; Jonas Örtegren; Renyun Zhang; Mittuniversitetet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Electric Double-Layer Capacitor; Graphite; Cellulose Nanofibers; Large-Scale; Mass Balancing; Metal-Free;

    Abstract : Today’s society is currently performing an exit from fossilfuel energy sources. The change to sustainable alternativesrequires inexpensive and environmentally friendly energy storagedevices. However, most current devices contain expensive,rare or toxic materials. These materials must be replaced bylow-cost, abundant, nontoxic components. READ MORE

  3. 3. Design and Numerical Modelling of Nanoplasmonic Structures at Near-Infrared for Telecom Applications

    Author : Seyed Morteza Ebadi; Jonas Örtegren; Max Yan; Magnus Hummelgård; Carl Hägglund; Mittuniversitetet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; Surface plasmon polaritons SPPs ; resonators; photonic integrated circuits PICs ; wavelength filtering devices; MIM waveguides.; ytplasmon-polaritoner SPPs ; resonatorer; fotoniska integrerade kretsar PIC- enheter ; våglängdsfiltreringsenheter; MIM-vågledare.;

    Abstract : Industrial innovation is mostly driven by miniaturization. As a result of remarkable technological advancements in the fields of equipment, materials and production processes, transistor, the fundamental active component in conventional electronics, has shrunk in size. READ MORE

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

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

    Abstract : 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. READ MORE

  5. 5. Lattice Boltzmann simulations of two-phased flow in fibre network systems

    Author : Hanna Wiklund; Tetsu Uesaka; Stefan Lindström; Jonas Örtegren; Mittuniversitetet; []

    Abstract : Two-phase flow in microfluidic systems is of great interest for many scientificand engineering problems. Especially in the pulp and paper area, the problems spanfrom fibre-fibre interactions in the consolidation process of papermaking to edgewickingin paper board during the aseptic treatment of liquid packaging. READ MORE