Sökning: "airborne"

Visar resultat 11 - 15 av 267 avhandlingar innehållade ordet airborne.

  1. 11. Airborne Particles in Railway Tunnels

    Författare :Yingying Cha; Ulf Olofsson; Roy Harrison; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : .... LÄS MER

  3. 12. Airborne Isocyanates, Aminoisocyanates and Amines

    Författare :Daniel Karlsson; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental health; Miljökemi; Environmental chemistry; amines; aminoisocyanates; isocyanates; polyurethane; exposure; occupational; thermal degradation; chemiluminescence; mass spectrometry; Liquid chromatography; gas chromatography; Miljömedicin; Occupational health; industrial medicine; Yrkesmedicin; arbetsmiljömedicin;

    Sammanfattning : Isocyanates are used in the production of polyurethane (PUR). Exposure to isocyanates is associated with respiratory disorders and may occur during production or processing of PUR. During thermal degradation of PUR, amines and aminoisocyanates are formed in addition to isocyanates. LÄS MER

  4. 13. Dispersion and risk assessment of airborne contaminants in pharmaceutical clean rooms

    Författare :Berit Reinmüller; KTH; []
    Nyckelord :airborne contamination; clean rooms; clean zones; clothing systems; dispersion of contaminants; LR-Method; microbiological risk assessment; risk assessment; source strenth;

    Sammanfattning : In many of today's industries, particularly in the healthcare field, special protection is required against airbornemicrobiological contamination. Clean rooms and clean zones areused to separate the ambient environment from contaminationcontrolled areas. LÄS MER

  5. 14. Laboratory measurements of airborne emissions from car brakes for clean air

    Författare :Guido Perricone; Ulf Olofsson; Fulvio Amato; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automotive brake; non-exhaust emissions; inertia brake dynamometer; airborne particles; PM10; PN; isokinetic sampling; Rebrake; volatiles; real driving cycle; car brake emission factors; running-in.; Bilbroms; icke-avgasemissioner; skivbromsdynamometer; luftburna partiklar; PM10; PN; isokinetisk provtagning; Rebrake; volatiler; verkliga körcykler; emissionsfaktorer; in-körning.; Machine Design; Maskinkonstruktion;

    Sammanfattning : Brake systems are used to safely stop vehicles. The brake pads are pressed against the brake disc, transforming the kinetic energy of the vehicle into heat to be dissipated. LÄS MER

  7. 15. Airborne sound insulation of single and double plate constructions

    Författare :Ulrica Kernen; Gudni Jóhannesson; Waldemar Maysenhölder; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Construction engineering; : Airborne sound insulation; single plate; double plate; floating-floor; sound reduction index; sound transmission.; Byggnadsteknik; Building engineering; Byggnadsteknik;

    Sammanfattning : The sound insulation demands for dwellings and public building has increased over the years as the number of sound sources has grown. From the outside our homes are exposed to noise from cars, trains, airplanes, etc. Noise intrudes from our neighbours and their television and stereo equipments. LÄS MER