Sökning: "active"

Visar resultat 21 - 25 av 6424 avhandlingar innehållade ordet active.

  1. 21. Active suppression of vibration and noise in industrial applications

    Författare :Linus Andrén; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Active control technology; Active vibration control; Noise suppression;

    Sammanfattning : Today, active control technology is about to emerge from the research labs into products in various areas. It has become an attractive method where passive techniques have low impact at low frequencies and adding active control to that part is often an attractive solution. LÄS MER

  3. 22. Dispersal in free-living, marine, benthic nematodes : passive or active processes?

    Författare :Jörgen Ullberg; Emil Ólafsson; John Lambshead; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nematod; dispersial; water column; choice; algal mats; disturbance; meiofauna; community; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : Meiofauna, and especially marine nematodes are common in sediments around the world. Despite very wide ranging distributions in many nematode species, little is presently known about their dispersal mechanisms shaping these patterns. Rafting, and perhaps ballast water transport has been suggested as viable means for nematode long-range transport. LÄS MER

  4. 23. Grouting prediction systems for hard rock : based on active design

    Författare :Thomas Dalmalm; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 24. Applications of active materials

    Författare :Erik Edqvist; Greger Thornell; Bengt Lundberg; Edwin Jäger; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy efficient; microsystem; resonating cantilevers; microactuators; P VDF-TrFE ; surface mounting assembly; multi layers; flexible printed circuit board; conveyer; three legged; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Sammanfattning : Energy efficiency is a vital key component when designing and miniaturizing self sustained microsystems. The smaller the system, the smaller is the possibility to store enough stored energy for a long and continuous operational time. LÄS MER

  7. 25. Surface active betaine esters

    Författare :Dan Lundberg; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; self-assemlbly; cleavable surfactant; cationic surfactant; micellar catalysis; drug delivery; lyotropic liquid cryatal; betain ester; alkaline hydrolysis;

    Sammanfattning : .... LÄS MER