Search for dissertations about: "A. Christer Andersson"

Showing result 6 - 10 of 27 swedish dissertations containing the words A. Christer Andersson.

2. 6. Design and Evaluation of Anonymity Solutions for Mobile Networks

   Author : Christer Andersson; Simone Fischer-Hübner; Thijs Holleboom; Dogan Kesdogan; Claudia Diaz; Karlstads universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; privacy; anonymity; anonymous overlay networks; anonymity metrics; pseudonymity; identity management; mobile Internet; location based services; mobile ad hoc networks; Computer science; Datavetenskap; Datavetenskap; Computer Science;

   Abstract : Internet and mobile communications have had a profound effect on today's society. New services are constantly being deployed, in which personal data are being processed in return for personally tailored services. While mobile networks lay the groundwork for new innovative services, at the same time they pose numerous privacy challenges. READ MORE

4. 7. Measuring occupational dust exposure with a passive sampler

   Author : Mariam Shirdel; Ingvar Bergdahl; Britt Andersson; Håkan Wingfors; Christer Johansson; Umeå universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dust particles; mineral; PM10; PM2.5; respirable fraction; UNC passive aerosol sampler; working environment;

   Abstract : Objectives: In a working environment it is important to measure dust exposure to evaluate possible health issues. Passive sampling could be an alternative to active sampling with pumps when measuring occupational dust exposure. One passive sampler is the University of North Carolina passive aerosol sampler (UNC sampler). READ MORE

5. 8. Rock Mass Response to Coupled Mechanical Thermal Loading : Äspö Pillar Stability Experiment, Sweden

   Author : J. Christer Andersson; Håkan Stille; Charles Fairhurst; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Yielding; Spalling; Rock mass strength; Confinement; Fracturing; Tensile failure; Shear failure; Displacement; Acoustic Emission; Heating; Stress; Back calculation; Radial expansion; Mining engineering; Gruvteknik;

   Abstract : The geological disposal of nuclear waste, in underground openings and the long-term performance of these openings demand a detailed understanding of fundamental rock mechanics. A full scale field experiment: Äspö Pillar Stability Experiment was conducted at a depth of 450 m in sparsely fractured granitic rock to examine the rock mass response between two deposition holes. READ MORE

6. 9. Low consistency refining of mechanical pulp : process conditions and energy efficiency

   Author : Stefan Andersson; Per Engstrand; Christer Sandberg; Mittuniversitetet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mechanical pulping; low consistency refining; energy efficiency; rotor position; plate gap; fibre concentration;

   Abstract : The thesis is focussed on low consistency (LC) refining of mechanical pulp. Theresearch included evaluations of energy efficiency, development of pulpproperties, the influence of fibre concentration on LC refining and effects of rotorposition in a two-zoned LC refiner. READ MORE

7. 10. On healing of titanium implants in biphasic calcium phosphate

   Author : Christer Lindgren; Mats Hallman; Per Aspenberg; Lars Andersson; Linköpings universitet; []
   Keywords : MEDICINE; MEDICIN;

   Abstract : Background: Previously, autogenous bone was considered the gold standard for grafting procedures in implant surgery. Today, the use of bone graft substitutes is an alternative for sinus lift procedures. Nevertheless, only a few bone substitutes are well documented and can be recommended as an alternative to autogenous bone grafts. READ MORE