Sökning: "LED"

Visar resultat 1 - 5 av 3152 avhandlingar innehållade ordet LED.

  1. 1. Design-led organisations : A multiple-case study of the interplay between design and marketing

    Författare :Ingela Lindahl; Fredrik Nordin; Staffan Brege; Lisbeth Svengren Holm; Linköpings universitet; []

    Sammanfattning : The overall purpose of this thesis is to contribute to the knowledge base concerning the interplay between design and marketing. Based on the findings from the empirical studies, the aim of this thesis is to describe and analyze how marketing and design interplay in companies and the main reasons for such interplay. LÄS MER

  2. 2. Supporting healthy lifestyle habits in persons with mental disorders : The development of a nurse-led lifestyle intervention

    Författare :Ylva Rönngren; Ingela Enmarker; Åsa Audulv; Ulf Isaksson; Mittuniversitetet; []
    Nyckelord :interpersonal relationships; lifestyle intervention; mental disorders; mental illness; nurse-led;

    Sammanfattning : Persons with mental disorders have an increased risk of developing health problems. One reason for this is poor lifestyle habit support. The aim of this thesis was to develop and evaluate a nurse-led lifestyle intervention for persons with mental disorders. LÄS MER

  3. 3. Chlorophyll fluorescence as a biological feedback signal -for optimized plant growth conditions and stress diagnosis

    Författare :Linnéa Ahlman; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluorescence gain; ESC; classification; lemon balm; indoor farming; lettuce; abiotic stress; LED; Pythium ultimum; dynamics; cucumber; basil; greenhouse lighting control; powdery mildew Podosphaera aphanis; strawberries; light spectrum; biotic stress;

    Sammanfattning : The use of light emitting diodes (LEDs) instead of traditional high pressure sodium lamps, in greenhouses and indoor growing facilities, enables tuning and optimization of both light intensity and light spectrum. This opens for an energy saving potential not possible otherwise. LÄS MER

  4. 4. Chemical and electronic structure of electroluminescent materials and interfaces in polymer-LEDs

    Författare :Annica Andersson; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; conjugated polymer; XPS; UPS; LED; ITO; interface; chemical interaction; doping;

    Sammanfattning : Following the discovery that conjugated polymers can be used as the emitting layer in light­ emitting devices, extensive studies on these materials have been carried out. In a few years, due to the development of new materials and an increasing knowledge of the underlying chemistry and physics, the performance has improved a lot. LÄS MER

  5. 5. A study of devices and materials for polymer based LEDs

    Författare :Jonas Birgerson; Linköpings universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; conjugated; polymer; XPS; LED; Magnesium; blend; copolymer;

    Sammanfattning : Since the discovery that it is possible to dope conjugated polymers into high electrical conductivity the research in the field of conjugated polymers has increased a lot. Much of the research activity has been concentrated to the design and fabrication of light emitting devices. LÄS MER