Sökning: "EC 50"

Visar resultat 6 - 10 av 21 avhandlingar innehållade orden EC 50.

  1. 6. Frequency combs on chip for interferometry applications

    Författare :Israel Rebolledo Salgado; Martin Zelan; Victor Torres-Company; Karsten Rottwitt; RISE; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optical frequency combs; microcombs; pulses; nonlinear optics; interferometry; integrated photonics; spectroscopy;

    Sammanfattning : Optical frequency combs have revolutionized the field of laser spectroscopy. A frequency comb is a type of laser that generates an array of equally spaced coherent laser lines. Indeed, the outstanding performance of frequency combs in terms of bandwidth and stability is readily attainable in bench-top systems. LÄS MER

  3. 7. Skyddet av biologisk mångfald vid jakt : en studie om rättens förhållande till komplexa och dynamiska ekosystem tillämpat på uttag av viltarter

    Författare :Anna Christiernsson; Luleå tekniska universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Law; Rättsvetenskap;

    Sammanfattning : Biological diversity, or the variety of genes, species and ecosystem, is fundamental to all life on Earth. The conservation of biodiversity is consequently recognized both in national and international law as one of the prerequisites for achieving a sustainable development. However, the decrease in biodiversity is continuing, at all levels. LÄS MER

  4. 8. Renewable diesel fuels and emission control strategies : Implications for occupational exposure, human health, and the environment

    Författare :Louise Gren; NanoLund: Centre for Nanoscience; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aerosol technology;

    Sammanfattning : Combustion of fossil diesel is a major environmental problem for both the climate and human health. Renewable diesel fuels have been developed and introduced to the market to reduce the net CO2 emissions. LÄS MER

  5. 9. Predictive testing for contact allergy : comparison of some guinea pig and mouse protocols including dose-response designs

    Författare :Helen Wahlkvist; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :contact allergens; contact allergy; cumulative contact enhancement test; dose-response; evaluation; Freund s complete adjuvant test; guinea pig maximization test; local lymph node assay; mouse ear swelling test; patch test; predictive testing; statistical analysis;

    Sammanfattning : Contact allergy (delayed hypersensitivity) may develop as a result of skin exposure to contact allergens (haptens) and can lead to allergic contact dermatitis. The purpose of this study was to evaluate some predictive animal test methods for contact allergens. LÄS MER

  7. 10. Thin-film ultraviolet light-emitting diodes realized by electrochemical etching of AlGaN

    Författare :Michael Alexander Bergmann; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; thin-film flip-chip; light-emitting diodes; UVB; AlGaN; thermocompression bonding; substrate removal; ultraviolet light; electrochemical etching; heterogeneous integration; LEDs;

    Sammanfattning : Ultraviolet (UV) light sources have a direct impact on everyone’s life. They are used to sterilize surfaces as well as for water purification. In addition, they are used in green houses to enhance health-promoting substances in plants, for phototherapy to treat skin diseases, for sensing and material curing. LÄS MER