Sökning: "volumetric strain"

Visar resultat 11 - 15 av 21 avhandlingar innehållade orden volumetric strain.

  1. 11. Metabolic engineering and cultivation strategies for recombinant production of (R)-3-hydroxybutyrate

    Författare :Mariel Perez-Zabaleta; Gen Larsson; Antonius J. A. van Maris; Diethard Mattanovich; KTH; []
    Nyckelord :Escherichia coli; R -3-hydroxybutyrate; nitrogen limitation; nitrogen depletion; lignocellulose; fed batch; acetate; β-ketothiolase; acetoacetyl-CoA reductase; Halomonas boliviensis.; Bioteknologi; Biotechnology;

    Sammanfattning : Metabolic engineering and process engineering are two powerful disciplines to design and improve microbial processes for sustainable production of an extensive number of compounds ranging from chemicals to pharmaceuticals. The aim of this thesis was to synergistically combine these two disciplines to improve the production of a model chemical called (R)-3-hydroxybutyrate (3HB), which is a medium-value product with a stereocenter and two functional groups. LÄS MER

  3. 12. Physiological Engineering of Xylose Utilisation by Recombinant Saccharomyces cerevisiae

    Författare :Nina Quednau Meinander; Teknisk mikrobiologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; protein burden; physiology; fed-batch fermentation; chemostat; recombinant Saccharomyces cerevisiae; ethanol; xylose; xylitol; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Sammanfattning : Xylitol production by recombinant, XYL1-expressing Saccharomyces cerevisiae was investigated in fed-batch fermentation using different cosubstrates for growth, and generation of reduced cofactors and maintenance energy. Xylose was converted into xylitol with 1:1 yield. LÄS MER

  4. 13. Deformation and failure of hard rock under laboratory and field conditions

    Författare :Kelvis Pérez; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    Sammanfattning : The understanding of the fracture mechanisms and failure processes of the rock is an important requirement for the design of mining excavations and civil engineering constructions. The fracture process is necessary for the excavation and fragmentation of rock, but fracture of rock must be avoided and controlled to preserve the integrity of the construction. LÄS MER

  5. 14. Multidimensional MRI of Cardiac Motion : Acquisition, Reconstruction and Visualization

    Författare :Andreas Sigfridsson; Hans Knutsson; Stefan Skare; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MRI; cardiac; motion; reconstruction; Image analysis; Bildanalys;

    Sammanfattning : Methods for measuring deformation and motion of the human heart in-vivo are crucial in the assessment of cardiac function. Applications ranging from basic physiological research, through early detection of disease to follow-up studies, all benefit from improved methods of measuring the dynamics of the heart. LÄS MER

  7. 15. Measurements of deformations and flows inside optically nontransparent materials

    Författare :Fredrik Forsberg; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Experimentell mekanik; Experimental Mechanics;

    Sammanfattning : When a material is mechanically loaded or experience environmental changes such as for example thermal or pressure variations it is affected, in some way, due to these new conditions. In order to measure engineering properties related to these structural changes, such as for example deformation and strain, we need to gain information about them that are precise and reliable. LÄS MER