Search for dissertations about: "dynamic representation"

Showing result 11 - 15 of 165 swedish dissertations containing the words dynamic representation.

2. 11. Wheelset Structural Flexibility and Track Flexibility in Vehicle-Track Dynamic Interaction

   Author : Nizar Chaar; Stefano Bruni; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Vehicle-track dynamic interaction; wheelset structural flexibility; Structural and vibration physics; Struktur- och vibrationsfysik;

   Abstract : This thesis investigates the influence of wheelset structural flexibility and track flexibility on the vehicle-track dynamic interaction, mainly in terms of wheel-rail forces up to 200 Hz, using simulations and measurements. The previous knowledge in this field is first reviewed and summarized, then two case studies are selected for investigation. READ MORE

4. 12. Dynamic Load Models for Power Systems - Estimation of Time-Varying Parameters During Normal Operation

   Author : Ines Romero; Industriell elektroteknik och automation; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; voltage stability; Load modeling; modeling and identification; dynamic load models; normalization in reactive load models;

   Abstract : Economic and environmental concerns will slow down the expansion of the transmission system in many countries. The addition of new transmission lines will be few and far between. The de-regulation of the power supply will introduce new power flow patterns on the bulk transmission systems. READ MORE

5. 13. State space representation for verification of open systems

   Author : Irem Aktug; Mads Dam; Parosh Abdulla; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datalogi;

   Abstract : When designing an open system, there might be no implementation available for cer- tain components at verification time. For such systems, verification has to be based on assumptions on the underspecified components. In this thesis, we present a framework for the verification of open systems through explicit state space representation. READ MORE

6. 14. Mind in Action : Action Representation and the Perception of Biological Motion

   Author : Paul Hemeren; Högskolan i Skövde; []
   Keywords : HUMANIORA; HUMANITIES; action; perception; concept; Cognition; categorization; embodiment; prototype; biological motion; semantics; language; configural processing; basic level; graded structure; typicality; Civics; Samhällsvetenskap; Humanities and Social sciences; Humaniora-samhällsvetenskap; perception; action; concept; Cognition; categorization; embodiment; prototype; biological motion; semantics; language; configural processing; basic level; graded structure; typicality;

   Abstract : The ability to understand and communicate about the actions of others is a fundamental aspect of our daily activity. How can we talk about what others are doing? What qualities do different actions have such that they cause us to see them as being different or similar? What is the connection between what we see and the development of concepts and words or expressions for the things that we see? To what extent can two different people see and talk about the same things? Is there a common basis for our perception, and is there then a common basis for the concepts we form and the way in which the concepts become lexicalized in language? The broad purpose of this thesis is to relate aspects of perception, categorization and language to action recognition and conceptualization. READ MORE

7. 15. Mathematical Models of Molecular Evolution

   Author : Martin Nilsson; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; dynamic fitness landscapes; quasispecies; error thresholds; evolved mutation rates; evolution in dynamic environments;

   Abstract : This thesis deals with mathematical models of Darwinian evolution in populations of simple living organisms. We study models which describe how the representation of different gene sequences in the population is affected by the fundamental forces of evolutionary processes, such as selection pressure, the mutation rate and the time dynamics of the underlying fitness landscape. READ MORE