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Showing result 1 - 5 of 73 swedish dissertations matching the above criteria.

  2. 1. Study of the Synthesis of ZSM-5 from Inexpensive Raw Materials

    Author : Wilson Aguilar; Linda Sandström; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Abstract : ZSM-5 is an aluminosilicate with high silica ratio with suitable properties for catalysis, ion exchange, adsorption and membrane applications. ZSM-5 is usually produced industrially from concentrated systems in which there is formation of an amorphous gel phase. READ MORE

  4. 2. Anaerobic Treatment of Agricultural Residues and Wastewater - Application of High-Rate Reactors

    Author : Wilson Parawira; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biochemical technology; Biokemisk teknik; opaque beer brewery wastewater; UASB; two-stage; co-digestion; sugar beet leaves; solid potato waste; methane yield; biogas; Anaerobic digestion; agricultural residues;

    Abstract : The production of methane via anaerobic digestion of agricultural residues and industrial wastewater would benefit society by providing a clean fuel from renewable feedstocks. This would reduce the use of fossil-fuel-derived energy and reduce environmental impact, including global warming and pollution. READ MORE

  5. 3. Transformation phenomena in a super duplex stainless steel

    Author : Anders Wilson; KTH; []
    Keywords : Duplex stainless steel; Microstructure; Phase transformations; Precipitates; Sigma phase; Kinetics; Thermodynamic calculation; Continuous cooling transformation diagram; Time temperature transformation diagram; Computer model.;

    Abstract : Duplex stainless steels consist of about equal fractions offerrite and austenite and are attractive due to their highcorrosion resistance against pitting corrosion and stresscorrosion cracking. The pitting corrosion resistance can bedescribed by the PREN value which is defined asPREN=%Cr+3.3*%Mo+16*%N. READ MORE

  6. 4. Evidence based care of the very preterm infant : studies on thermal care and breastfeeding in Europe

    Author : Emilija Wilson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Very preterm birth occurs in approximately 1.5% of all births in Europe. Advances in neonatal intensive care has contributed to a decline in mortality and morbidity, nevertheless very preterm birth (birth before 32 weeks of gestation) is one of the main determinants of infant mortality and short- and long-term morbidity in Europe. READ MORE

  7. 5. Essays in Empirical Institutional Analysis

    Author : Ross Wilson; Nationalekonomiska institutionen; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Abstract : This thesis consists of three empirical studies on the effects of institutions, broadly conceived, on economic outcomes. The first study tests for evidence of causal relationships between provincial quality of governance and economic growth rates in reform-era China, 1985–2005. READ MORE