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Visar resultat 1 - 5 av 13 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Bright Lights: Innovative Micro- and Nano-Patterning for Sensing and Tissue Engineering

    Författare :Alessandro Enrico; Göran Stemme; Frank Niklaus; Anna Herland; Jürgen Brugger; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Micro-electromechanical systems MEMS ; nanotechnology; nanowires; microfabrication; tissue engineering; crack-lithography; direct writing; femtosecond lasers; two-photon polymerization; 3D micromachining; cavitation molding; scalable optical patterning; 2D materials; surface structuring; bacterial-surface interaction.; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Light is the primary source of energy on our planet and has been a significant driver in the evolution of human society and technology. Light finds applications in two-dimensional (2D) photolithography and three-dimensional (3D) printing, where a pattern is transferred to a material of interest by ultraviolet (UV) light exposure, and in laser scribing and cutting, where high power lasers are used to pattern the surface of objects or cut through the bulk of the material of interest. LÄS MER

  3. 2. Gudstjänstgemenskap i folkkyrkan. Ett studium av gudstjänstgemenskapens identitet och ställning i Svenska kyrkan

    Författare :Fredrik Modéus; Tros- och livsåskådningsvetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; Worship community; ecclesiological concretion; ecclesiologial balance contextually sensitive; historically rooted and confessionally widened ; corporate person; ideal types; ecclesiological subject hidden; visible and structuring ; ecclesiological core values and ecclesiological basic qualities.;

    Sammanfattning : The dissertation examines the theoretical identity and formal status of a worship community within the Church of Sweden. Two theoretical perspectives form the basis of the investigation. LÄS MER

  4. 3. Low dimensional Zinc- and Copper Oxides and their Electronic, Vibrational and Photocatalytic Properties

    Författare :Jakob Thyr; Tomas Edvinsson; Thomas Wågberg; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ZnO; Cu2O; CuO; Cu4O3; Photocatalysis; Raman spectroscopy; Nano materials; Quantum confinement; Quantum dots; Size dependent properties; Crystal orientation; Density functional theory; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Sammanfattning : Pollution of water resources is a growing problem in the world and this has drawn the attention to photocatalysis, which is an emerging technology for water purification. In this thesis, low dimensional zinc oxide and copper oxides, which are promising photocatalytic materials, have been studied. LÄS MER

  5. 4. Advanced nano- and microdomain engineering of Rb-doped KTiOPO4 for nonlinear optical applications

    Författare :Charlotte Liljestrand; Carlota Canalias; Sunao Kurimura; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; KTiOPO4; nonlinear optics; MOPO; quasi-phase matching; SHG; ferroelectrics; domain structuring; periodic poling; Fysik; Physics;

    Sammanfattning : Fine-pitch ferroelectric domain gratings are extensively used for generation of light in the visible and near-infrared spectral regions through quasi-phase matched (QPM) frequency conversion. Sub-μm QPM devices enables demonstration of nonlinear optics with counterpropagating waves, a field of nonlinear optics which remains sparsely explored due to the difficulty of fabricatinghigh quality gratings. LÄS MER

  7. 5. Multi-spectral analysis of fine scale aurora

    Författare :Hanna Dahlgren; Göran Marklund; Nickolay Ivchenko; Fred Sigernes; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Plasma physics; Plasmafysik; Optics; Optik;

    Sammanfattning : The Aurora Borealis is the visible manifestation of the complex plasma interaction between the solar wind and the Earth's magnetosphere and ionosphere. Ground based and in situ measurements demonstrate a prevalence of dynamic fine structure within auroral displays, with spatial scales down to tens of metres and time variations occurring on a fraction of a second. LÄS MER