Search for dissertations about: "core stability"

Showing result 1 - 5 of 211 swedish dissertations containing the words core stability.

2. 1. Properties of Asphaltenes with emphasis on NMR self-diffusion as the investigating technique

   Author : Jenny-Ann Östlund; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; amphiphilic; diffusion; oil; mixture analysis; CORE; stability; NMR; pulsed gradient spin echo; light scattering; XPS; asphaltene; chemical interactions;

   Abstract : Asphaltenes are high-molecular weight, highly aromatic molecules that have a strong tendency to aggregate. Asphaltenes are found in oil and may, if they form particles, cause problems during oil production and handling. READ MORE

4. 2. Predicting surfacing internal erosion in moraine core dams

   Author : Hans Rönnqvist; Anders Wörman; Hans Bergh; Kaare Høeg; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; internal erosion; internal stability; filters; moraine core; embankment dams; sinkholes; internal erosion assessment; Geoengineering and mining engineering; Geoteknik och gruvteknik;

   Abstract : Dams that comprise broadly and widely graded glacial materials, such as moraines, have been found to be susceptible to internal erosion, perhaps more than dams of other soil types. Internal erosion washes out fine-grained particles from the filling material; the erosion occurs within the material itself or at an interface to another dam zone, depending on the mode of initiation. READ MORE

5. 3. Unravelling protein stability and aggregation

   Author : Tanja Weiffert; NanoLund: Centre for Nanoscience; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; protein stability; protein aggregation; amyloid beta peptide; protein stabilization; split GFP; monellin; secretagogin; ; aggregation kinetics; toxicity; aggregation mechanism; coaggregation;

   Abstract : Proteins are complex macromolecules that are fundamental to all living species. The stability of proteins are governed by non-covalent forces within the protein and between the protein and its surrounding environment. READ MORE

6. 4. The Interaction Between the Chaperonin GroEL and Human Carbonic Anhydrase II : Protein Folding and Stability Studies

   Author : Malin Persson; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; carbonic anhydrase; protein folding; protein stability; chaperone; GroEL; folding mechanism; site-directed spinlabeling; electron paramagnetic resonance EPR ;

   Abstract : The presence of GroEL/ES during the refolding of human carbonic anhydrase II was found to increase the yield of active enzyme from approx. 70 to approx. 100%. This chaperone action on the enzyme could be obtained by adding GroEL alone, and the time course in that case was only moderately slower than the spontaneous process. READ MORE

7. 5. Receptivity, Stability and Sensitivity analysis of two- and three-dimensional flows

   Author : Guillaume Chauvat; Ardeshir Hanifi; Dan S. Henningson; Ulrich Rist; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; boundary-layers; stability; receptivity; sensitivity; transition; mode decomposition; Engineering Mechanics; Teknisk mekanik;

   Abstract : This work deals with various aspects of boundary-layer stability. Modal and non-modal approaches are first used in the study of the global stability of a jet in crossflow. READ MORE