Advanced search

Showing result 1 - 5 of 483 swedish dissertations matching the above criteria.

2. 1. Multi-Criteria Optimization of System Integration Testing

   Author : Sahar Tahvili; Markus Bohlin; Franz Wotawa; Mälardalens högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Software Testing; Optimization; Integration Testing; Decision Support System; Dependency; Test Scheduling; Requirement Coverage; Computer Science;

   Abstract : Optimizing software testing process has received much attention over the last few decades. Test optimization is typically seen as a multi-criteria decision making problem. One aspect of test optimization involves test selection, prioritization and execution scheduling. READ MORE

4. 2. Damage Tolerance of Impacted Composite Sandwich Structures

   Author : Moeen ud din Saeed Rajput; Malin Åkermo; Stefan Hallström; Magnus Burman; Christian Berggreen; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; composite sandwich; cellular; polymer; material characterization; modulus; non-crimp fabric; low velocity impact; vibration; uncertainty analysis; drop-weight impact; fractography; barely visible impact damage; X-ray microtomography; compression-after-impact; bending-after-impact; high speed image processing; damage resistance; damage tolerance; Aerospace Engineering; Flyg- och rymdteknik;

   Abstract : This thesis deals with damage tolerance of impacted sandwich structures for load bearing applications. Composite sandwich structures find wide application as lightweight solutions in aerospace components, since weight reduction and less fuel emissions are primary concerns for aircraft manufactures. READ MORE

5. 3. Aircraft composites and aeroelastic tailoring

   Author : Jakob Kuttenkeuler; KTH; []
   Keywords : polymer composites; testing; resin; transfer molding; RTM; process parameters; mechanical properties; aircraft; impact damage; BVID; modal; inverse method; uncertainties; aeroelasticity; optimization; wind tunnel; TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : This thesis treats various aspects of structural polymercomposites in aircraft applications. The mechanical performanceand quality of resin transfer molded (RTM) carbon fiberreinforced epoxy composites is studied. READ MORE

6. 4. Toughness of Tool Steel

   Author : Henrik Jesperson; Håkan Engqvist; Birger Karlsson; Uppsala universitet; []
   Keywords : Toughness; Tool Steel; Heat Treatment; Temperature; Energy absorption; Impact Testing; Fracture Toughness Testing; Non-metallic Inclusions; Carbides; Nitrides; Statistics; TECHNOLOGY; TEKNIKVETENSKAP; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

   Abstract : Toughness is the ability to resist tensile stresses in the presence of a notch or crack. Sometimes gross cracking of industrial tools, mould or dies, occurs due to insufficient toughness. As the economic consequences of the gross cracking are serious, the toughness of industrial tool material, generally tool steel, is of paramount importance. READ MORE

7. 5. Significance of Human Papillomavirus (HPV) Analysis for the Detection of Precancerous Cervical Lesions : Impact of Self Sampling

   Author : Karin Sanner; Matts Olovsson; Ingrid Wikström; Erik Wilander; Sven-Eric Olsson; Uppsala universitet; []
   Keywords : human papilloma virus; HPV; self-sampling; organized screening; cervical cancer screening; Obstetrik och gynekologi; Obstetrics and Gynaecology;

   Abstract : Cervical cancer is the second most common cancer, with about 500 000 new cases per year among women worldwide. With a well-organized screening programme the number of cases can be reduced by more than 50%. In spite of having such a screening programme there are still around 450 new cases yearly in Sweden. READ MORE