Sökning: "Johan Franzén"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden Johan Franzén.

  1. 1. Development of soft sensors for monitoring and control of bioprocesses

    Författare :Robert Gustavsson; Carl-Fredrik Mandenius; Johan Hyllner; Carl Johan Franzén; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : In the manufacture of bio-therapeutics the importance of a well-known process is key for a high product titer and low batch to batch variations. Soft sensors are based on the concept that online sensor signals can be used as inputs to mathematical models to derive new valuable process information. LÄS MER

  3. 2. Palladium-Catalyzed Carbocyclizations of Allenes with Unsaturated Hydrocarbons

    Författare :Johan Franzén; Jan-E. Bäckvall; Ross A. Widenhoefer; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Palladium-catalysis; Allenes; Organic chemistry; Organisk kemi;

    Sammanfattning : Palladium-catalyzed reactions of unsaturated hydrocarbons are important processes in organic chemistry especially for the generation of ring systems. This thesis describes the development and mechanistic studies of carbocyclization reactions of allenes with olefins, allyls or 1,3-dienes catalyzed by palladium(0)- and palladium(II)-complexes. LÄS MER

  4. 3. Analysis and Control of Continuous Microaerobic Ethanol Production by Yeast

    Författare :Carl Johan Franzén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nitrogen limitation; ethanol; Saccharomyces cerevisiae; glycerol; metabolic flux analysis; oxygen limitation; stoichiometric model; yeast physiology; RQ control;

    Sammanfattning : Glucose fermentation by Saccharomyces cerevisiae, and xylose fermentation by Candida utilis and Pichia stipitis, were investigated under microaerobic conditions. A dynamic experimental method named oxygen programmed fermentation (OPF), and a method for microaerobic RQ control in continuous culture have been developed. LÄS MER

  5. 4. Experimental Methods for Microaerobic Bioprocesses

    Författare :Carl Johan Franzén; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; oxygen limitation; on-line monitoring; dynamic experiments; glucose; ethanol; yeast; xylose; fermentation;

    Sammanfattning : .... LÄS MER

  7. 5. Experimental methods for microaerobic bioprocesses : oxygen programmed fermentation and off-gas analysis by mass spectrometry

    Författare :Carl Johan Franzén; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; yeast; dynamic experiments; glucose; oxygen limitation; xylose; fermentation; on-line monitoring; ethanol;

    Sammanfattning : .... LÄS MER