Sökning: "åke forsberg"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden åke forsberg.

  1. 1. Research on recovery of polluted lakes : chemical and biological methods for monitoring wastewater effluent quality

    Författare :Åke Forsberg; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 2. Crystallization of Metal Fluoride Hydrates from Mixed Acid Solutions

    Författare :Kerstin Forsberg; Åke Rasmuson; Alison Lewis; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; crystallization; crystal growth; b-FeF3.3H2O; iron fluoride trihydrate; CrF3.3H2O; pickling; pickle bath; hydrofluoric acid; nitric acid; stainless steel; Chemical engineering; Kemiteknik;

    Sammanfattning : In this work crystal growth and nucleation of b-FeF3×3H2O and crystallization of chromium (III), iron (III) and nickel (II) fluoride hydrates from mixed acid (1-3 mol/kg HNO3 and 1-6 mol/kg free HF) have been investigated. The solubility of b-FeF3×3H2O has been determined in solutions of different hydrofluoric acid (1-7mol/ kg) and nitric acid (0-7mol/ kg) concentrations at 30, 40 and 50°C. LÄS MER

  4. 3. Recovery of Rare Earth Elements from an Apatite Concentrate

    Författare :Mahmood Alemrajabi; Kerstin Forsberg; Åke C. Rasmuson; Koen Binnemans; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rare earth elements; precipitation; nitrophosphate process; hollow fiber supported liquid membrane extraction; Chemical Engineering; Kemiteknik;

    Sammanfattning : Rare earth elements (REE) are a group of 17 elements including lanthanides, yttrium and scandium; which are found in a variety of classes of minerals worldwide. The criticality of the application, lack of high grade and economically feasible REE resources and a monopolistic supply situation has raised significant attention in recovery of these metals from low grade ores and waste materials. LÄS MER

  5. 4. Regulatory pathways and virulence inhibition in Listeria monocytogenes

    Författare :Christopher Andersson; Jörgen Johansson; Debra Milton; Åke Forsberg; Claude Parsot; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Listeria monocytogenes; PrfA; ActA; infection; molekylärbiologi; Molecular Biology;

    Sammanfattning : Listeria monocytogenes is a rod-shaped Gram positive bacterium. It generally exist ubiquitously in nature, where it lives as a saprophyte. Occasionally it however enters the food chain, from where it can be ingested by humans and cause gastro-intestinal distress. In immunocompetent individuals L. LÄS MER

  7. 5. Twin-arginine translocation in Yersinia : the substrates and their role in virulence

    Författare :Ummehan Avican; Åke Forsberg; Åsa Sjöling; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Yersinia pseudotuberculosis; Tat; virulence; Tat substrates; SufI; stress response; metabolism; infection; transcriptome analysis; Infectious Diseases; infektionssjukdomar; molekylärbiologi; Molecular Biology; mikrobiologi; Microbiology;

    Sammanfattning : Pathogenic Yersinia cause a manifold of diseases in humans ranging from mild gastroenteritis (Y. pseudotuberculosis and Y. enterocolitica) to pneumonic and bubonic plague (Y. LÄS MER