Sökning: "Sunlight"

Visar resultat 26 - 30 av 148 avhandlingar innehållade ordet Sunlight.

  1. 26. Treatment of Textile Wastewater by Combining Biological Processes and Advanced Oxidation

    Författare :Marisa Punzi; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Azo dye; textile wastewater; biological treatment; biofilm; microbial community; DGGE; green algae; photo-Fenton; ozone; toxicity; mutagenicity; LCA; cost analysis;

    Sammanfattning : Treatment of textile wastewater is challenging because the water contains toxic compounds that have low biodegradability. Dyes, detergents, surfactants, biocides and more are used to improve the textile process and to make the clothes resistant to physical, chemical and biological agents. LÄS MER

  3. 27. Structure and dynamics in solution – the core electron perspective

    Författare :Ida Josefsson; Michael Odelius; Håkan Rensmo; Valérie Vallet; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum chemistry; RASSCF; molecular dynamics; x-ray spectroscopy; electrolyte solutions; fysik; Physics;

    Sammanfattning : This thesis is based on theoretical studies of the molecular and electronic structure of solvated ions and molecules. Very detailed information of the system can be obtained from theoretical calculations, but a realistic model is dependent on an accurate computational method. LÄS MER

  4. 28. Low Band-Gap Conjugated Polymers for Plastic Solar Cells

    Författare :Erik Per Perzon; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; low band-gap conjugated polymers; Plastic solar cells;

    Sammanfattning : Today, fossil fuels like coal, oil, and natural gas are used for more than 60% of the world's electricity production. These fuels have a very negative impact on the environment and many researchers agree that the earth's climate is changing as a consequence of fossil fuel emissions. LÄS MER

  5. 29. On the combustion and photolytic degradation products of some brominated flame retardants

    Författare :Gunilla Söderström; Stellan Marklund; Mats Tysklind; Kees Olie; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; PBCDD; PBCDF; PBDD; PBDF; PBDE; HBCD; TBBP-A; combustion; photolytic; MSW; Miljökemi; Environmental chemistry; Miljökemi;

    Sammanfattning : Many modern products, especially electronic goods, are protected by brominated flame retardants (BFR). Some of the most common flame retardants are polybrominated diphenylethers (PBDE), tetrabromobisphenol-A (TBBP-A) and hexabromocyclododecane (HBCD). LÄS MER

  7. 30. XDSC : Excitonic Dye Solar Cells

    Författare :Eva Unger; Gerrit Boschloo; Tom J. Savenije; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hybrid solar cells; energy transfer; dye-sensitized solar cells; TiO2; small-molecular semiconductor; hole-transporting dye; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

    Sammanfattning : Solar energy is the foremost power source of our planet. Driving photosynthesis on our planet for 3 billion years the energy stored in the form of fossil fuels also originates from the sun. Consumption of fossil fuels to generate energy is accompanied with CO2 emission which affects the earth's climate in a serious manner. LÄS MER