Sökning: "variabilitet"

Visar resultat 16 - 20 av 52 avhandlingar innehållade ordet variabilitet.

1. 16. Incorporating Functional Safety in Model-based Development of Product Lines

   Författare :Stephan Baumgart; Sasikumar Punnekat; Rolf Johansson; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computer Science; datavetenskap;

   Sammanfattning : Product lines in industry are often based on an engineer’s focus on fast and feasible product instantiation rather than a precise product line development method and process as described in literature. When considering functional safety, we need a precise model that includes evidence for the safety of each variant of the product. LÄS MER

3. 17. Prior Knowledge and Recognition Memory : a Computational Modeling Approach

   Författare :Johan Hellman; Institutionen för psykologi; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Recognition memory; Episodic memory; Pre-experimental familiarity; Event-Related Potentials; Item variability; Receiver-Operating Characteristics; Computational Models;

   Sammanfattning : For more than a century, an immense interest has been devoted to the study of recognition memory, where a multitude of memory phenomena has been explained. Recognition memory is usually described with parsimonious measurement and statistical models, stemming from dual process theory and signal detection theory. LÄS MER

4. 18. Probabilistic System Effects in Timber Structures

   Författare :Martin Hansson; Avdelningen för Konstruktionsteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Byggnadsteknik; Building construction; Anläggningsteknik; Construction technology; first order reliability method; Monte Carlo simulation; system effect; sheathed parallel member system; structural timber; roof truss;

   Sammanfattning : The main purpose of the performed research presented in this thesis is to increase the understanding of the effect of variability of strength properties on the reliability of timber structural systems. Compared to other structural materials such as steel and concrete, structural timber has a considerably higher variability of strength both within and between members. LÄS MER

5. 19. The Components of Well-Being Among Older Persons : A Longitudinal Perspective

   Författare :Cheryl McCamish-Svensson; Institutionen för psykologi; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social psychology; Psychology; Qualitative; Loneliness; Social Support; Life Satisfaction; Well-Being; Longitudinal; Gerontology; Socialpsykologi; Psykologi; Gerontologi;

   Sammanfattning : Two Swedish longitudinal cohort studies form the basis for this thesis that examines the components of well-being from young old to oldest old. The Lund 80+ cross-sequential design began in 1988 when participants were 80-years old (N=212) and follows them annually until all are deceased. LÄS MER

7. 20. Multiphase Contamination in Rock Fractures : Fluid Displacement and Interphase Mass Transfer

   Författare :Zhibing Yang; Auli Niemi; Fritjof Fagerlund; Tissa Illangasekare; Insa Neuweiler; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; multiphase flow; dissolution; mass transfer; invasion percolation; immiscible displacement; fractured media; groundwater contamination; non-aqueous phase liquid; curvature; Hydrology; Hydrologi;

   Sammanfattning : Multiphase flow and transport in fractured rock is of importance to many practical and engineering applications. In the field of groundwater hydrology an issue of significant environmental concern is the release of dense non-aqueous phase liquids (DNAPLs) which can cause long-term groundwater contamination in fractured aquifers. LÄS MER