Sökning: "Environmental Chemistry miljökemi"

Visar resultat 1 - 5 av 280 avhandlingar innehållade orden Environmental Chemistry miljökemi.

  1. 1. Ageing of the Nickel Metal Hydride Barrery

    Detta är en avhandling från Chalmers University of Technology

    Författare :Magnus Larsson; Chalmers tekniska högskola.; Chalmers University of Technology.; Chalmers tekniska högskola.; Chalmers University of Technology.; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Kemi; Chemistry; Miljöteknik; Environmental engineering; Ageing; metal hydride; state of charge; pore size distribution; electrocheimical impedance spectroscopy;

    Sammanfattning : .... LÄS MER

  2. 2. Towards Prospective Exposure Modeling of Nanoparticles - Applying Particle Flow Analysis and Kinetic Exposure Modeling for the Cases of TiO2 and Ag Nanoparticles

    Detta är en avhandling från Chalmers University of Technology

    Författare :Rickard Arvidsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Miljökemi; Environmental chemistry; Miljöteknik; Environmental engineering; Teknik och social förändring; Technology and social change; Particle flow analysis PFA ; exposure modeling; nanoparticles; environmental risk assessment;

    Sammanfattning : The claims regarding the usefulness of nanoparticles (NPs) in different applications, such as wound dressings, solar cells and soil remediation, has been accompanied by concern that NPs may also pose risks to humans and to the environment. Considering the past century, when many substances later shown to cause unacceptable damage were manufactured in large amounts, there are reasons to thoroughly assess the risks of these NPs. LÄS MER

  3. 3. High Temperature Corrosion of Stainless Steels - The Effects of Chloride Salts and SO2(g)

    Detta är en avhandling från Chalmers University of Technology

    Författare :Sofia Karlsson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Miljökemi; Environmental chemistry; Oorganisk kemi; Inorganic chemistry;

    Sammanfattning : Abstract The high corrosion rate of superheaters in waste- and biomass- fired plants is often linked to the presence of alkali chlorides. One way to mitigate the corrosion is to replace the superheater material with more corrosion- resistant materials. Another way is to change the corrosive environment by introducing fuel additives. LÄS MER

  4. 4. Assessment of human exposure to per- and polyfluorinated compounds (PFCs) : exposure through food, drinking water, house dust and indoor air

    Detta är en avhandling från Örebro : Örebro universitet

    Författare :Ingrid Ericson Jogsten; Örebro universitet.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; human exposure; per- and polyfluorinated compunds PFCs ; dietary intake; drinking water; indoor environment; TECHNOLOGY; TEKNIKVETENSKAP; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Miljökemi; Environmental Chemistry; Kemi; Chemistry;

    Sammanfattning : Per- and polyfluorinated compounds (PFCs) are detected in humans worldwide but all sources of human exposure have not been fully characterized. The aim of this thesis was to evaluate the contributions from food, water, air and dust as sources for human PFC exposure in the general population. LÄS MER

  5. 5. Temporal and spatial trends of organohalogens in guillemot (Uria aalge) from North Western Europe

    Detta är en avhandling från Stockholm : Institutionen för miljökemi

    Författare :Hrönn Jörundsdóttir; Stockholms universitet.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arctic; environmental; monitoring; pollution; time trends; spatial trends; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; Environmental Chemistry; miljökemi;

    Sammanfattning : The Arctic and sub-Arctic region of the North Atlantic is a remote area, also in relations to environmental contaminants, such as POPs, BFRs and last but not least, PFCs. Both the BFRs and PFCs are considered emerging pollutants of significant environmental concern. LÄS MER