Sökning: "multi-layer structure"

Visar resultat 21 - 25 av 28 avhandlingar innehållade orden multi-layer structure.

  1. 21. Photonic devices with MQW active material and waveguide gratings : modelling and characterisation

    Författare :Nadeem Akram; Lars Thylén; Hartmut Hillmer; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Method of Lines; Grating; ARROW Waveguide; Semiconductor laser; quantum well; Photonics; Fotonik;

    Sammanfattning : The research work presented in this thesis deals with modelling, design and characterisation of passive and active optical waveguide devices. The rst part of the thesis is related to algorithm development and numerical modelling of planar optical waveguides and gratings using the Method of Lines (MoL). LÄS MER

  3. 22. Embodied Visual Object Recognition

    Författare :Marcus Wallenberg; Per-Erik Forssén; Michael Felsberg; Aleš Ude; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; object recognition; machine learning; computer vision;

    Sammanfattning : Object recognition is a skill we as humans often take for granted. Due to our formidable object learning, recognition and generalisation skills, it is sometimes hard to see the multitude of obstacles that need to be overcome in order to replicate this skill in an artificial system. LÄS MER

  4. 23. Functionalization of polymer electrolytes for electrochromic windows

    Författare :İlknur Bayrak Pehlivan; Gunnar A. Niklasson; Claes-Göran Granqvist; Michel Aegerter; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrochromism; Polymer electrolytes; PEI; LiTFSI; Nanoparticles; Ionic conductivity; Ion-pair relaxation; Near-infrared absorption; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Sammanfattning : Saving energy in buildings is of great importance because about 30 to 40 % of the energy in the world is used in buildings. An electrochromic window (ECW), which makes it possible to regulate the inflow of visible light and solar energy into buildings, is a promising technology providing a reduction in energy consumption in buildings along with indoor comfort. LÄS MER

  5. 24. Sustainability in Store

    Författare :Matthias Lehner; Internationella miljöinstitutet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; retail; retail brands; retail store; sensemaking; sustainable consumption;

    Sammanfattning : Retailers across Western Europe are faced with the challenge to integrate the idea of sustainable consumption and production (SCP) into their operations. The difficulty hierin lies in the the lack of any clear understanding or agreement for what the term implies for retailers and how to implement it in retailers’ daily operations. LÄS MER

  7. 25. Properties of Multifunctional Oxide Thin Films Despostied by Ink-jet Printing

    Författare :Mei Fang; Lyubov Belova; K. Venkat Rao; Gillian Gehring; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ink-jet printing; oixde; thin film; ink; suspension; dye sensitized solar cell; functional properties; magnetism; diluted magnetic semiconductors;

    Sammanfattning : Ink-jet printing offers an ideal answer to the emerging trends and demands of depositing at ambient temperatures picoliter droplets of oxide solutions into functional thin films and device components with a high degree of pixel precision. It is a direct single-step mask-free patterning technique that enables multi-layer and 3D patterning. LÄS MER