Sökning: "installation"

Visar resultat 36 - 40 av 305 avhandlingar innehållade ordet installation.

  1. 36. To Show: apropos of Marcel Duchamp’s Étant donnés: 1° La chute d’eau, 2° Le gaz d’éclairage

    Författare :Ann Pontén; Yrkes- och miljödermatologi; []
    Nyckelord :;

    Sammanfattning : Aims: To study aspects of Marcel Duchamp’s posthumous permanent installation 'Étant donnés: 1° La chute d’eau, 2° Le gaz d’éclairage…' ('Given: 1. The Waterfall, 2. The Illuminating Gas.. LÄS MER

  3. 37. Experimental Studies on the Aeroacoustics of Low-Speed Axial Fans

    Författare :Michail Vourakis; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low-speed axial fans; electric fans; experimental; laser Doppler anemometry; low-pressure axial fans; cooling fan; aeroacoustics; rotating ring;

    Sammanfattning : Low-speed axial fans are used in thermal management systems of internal combustion and electric vehicles. These systems are compact, cost-effective, all while addressing safety concerns. On the downside, fan operation leads to flow induced noise. LÄS MER

  4. 38. Evaluation of energy conserving measures in buildings connected to a district heating system : case studies in Gävle, Sweden

    Författare :Mattias Gustafsson; Björn Karlsson; Magnus Åberg; Högskolan i Gävle; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energieffektivisering; miljonprogrammet; solceller;

    Sammanfattning : When different energy conserving measures are implemented for reducing energy use in buildings and the buildings are connected to district heating systems, it is important that an overall system analysis is made which takes into account the effects of total change of energy use due to the energy conserving measures.The method applied in this thesis uses hourly production data for the different production units in the district heating system in Gävle, Sweden. LÄS MER

  5. 39. Fibre-Optic Displacement and Temperature Sensing Using Coupling Based Intensity Modulation and Polarisation Modulation Techniques

    Författare :Johan Jason; Hans-Erik Nilsson; Bertil Arvidsson; Werner Daum; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optical fibre sensor; displacement measurement; temperature measurement; fibre coupling; intensity modulation; birefringence; polarisation; OTDR; side-hole fibre;

    Sammanfattning : Optical fibre sensors are employed in the measurements of a number of different physical properties or for event detection in safety and security systems. In those environments which suffer from electromagnetic disturbance, in harsh environments where electronics cannot survive and in applications in favour of distributed detection, fibre-optic sensors have found natural areas of use. LÄS MER

  7. 40. Physical modeling of on-state losses in bipolar Si and SiC power devices

    Författare :Olof Tornblad; KTH; []
    Nyckelord :;

    Sammanfattning : Power losses affect both the installation- and long-term cost of power electronic systems. The installation cost is related to the fatt that power losses in silicon power devices generate heat and make installation of heat sinks and water cooling necessary. If self-heating effects are strong, lotal overheating can eventually lead to device failure. LÄS MER