Sökning: "ultra-fine particles"

Hittade 5 avhandlingar innehållade orden ultra-fine particles.

  1. 1. The Urban Aerosol – Sources and Atmospheric Processes

    Författare :Sara Janhäll; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Air quality; traffic emissions; emission factor; Göteborg; ultra-fine particles; size distribution; winter inversion; vertical distribution; source apportionment; air quality; ultrafine particles; vertical distibution;

    Sammanfattning : .... LÄS MER

  3. 2. On urban air pollution measurements : analysis for identification and classification of sources

    Författare :Peter Molnár; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Vertical gradients; sulphur; pm2.5; tsp; ultra fine particles; particle size distribution; air mass trajectories; traffic emissions; dmps; edxrf;

    Sammanfattning : .... LÄS MER

  4. 3. On the Agglomeration of Particles in Exhaust Gases

    Författare :Ghulam Majal; Mihai Mihaescu; Mats Åbom; Mikael Karlsson; Lisa Prahl Wittberg; Henrik Ström; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Multiphase flow; DES; particulate matter; exhaust after treatment; particle agglomeration; Lagrangian particle tracking; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : Particulate emissions from road transportation are known to have an adverse impact on human health as well the environment. As the effects become more palpable, stricter legislation have been proposed by regulating bodies. LÄS MER

  5. 4. Studies of aerosol particle formation from various sources using ion and electron beam analytical techniques

    Författare :Arash Gharibi; Fysiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; GUPIX; TEM; SEM; EDX; biomass combustion; traffic; road; jet droplets; film droplets; Physics; Nuclear physics; Fysik; Kärnfysik; pollution control; Environmental technology; Aerosol particles; PIXE; sources emission; tire; Arctic; Miljöteknik; kontroll av utsläpp; Fysicumarkivet A:000;

    Sammanfattning : The thesis presents the results of studies of aerosol particle formation using ion and electron beam analytical techniques. The sources of aerosol particle formation studied are the following: 1. production of primary aerosol particles in the high Arctic region during summers 2. LÄS MER

  7. 5. Towards more sustainable approaches for protecting surfaces against wear

    Författare :Kaveh Torkashvand; Mohit Kumar Gupta; Nuria Espallargas; Högskolan Väst; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wear; HVAF spraying; WC-Based Coatings; Sustainability; Binder Chemistry; Slitage; HVAF; WC-baserade beläggningar; Hållbar produktion; Bindemedelskemi; Production Technology; Produktionsteknik;

    Sammanfattning : WC-Co coatings, with and without chromium additives, are widely used in the industry for severe tribological applications. However, concerns about cobalt supply and its environmental and health impacts have led industries to explore sustainable binder alternatives. LÄS MER