Search for dissertations about: "Force covariance"

Found 4 swedish dissertations containing the words Force covariance.

  1. 1. Deriving effective forces for mesoscopic particle simulations

    Author : Johan Nyström; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Coarse graining; Boids; Force covariance; Mori-Zwanzig projection; Dissipative particle dynamics; Force matching; Flocking.;

    Abstract : In the field of molecular simulations, the long-standing aim has been to study mechanisms that cannot easily be observed in experiments or understood in terms of more abstract models. This is hard for systems of mesoscopic size (proteins, membranes etc. READ MORE

  2. 2. Aspects in Incomplete Modeling in System Identification

    Author : Håkan Hjalmarsson; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis considers several aspects of the system identification problem. The major issues, however, are how one should represent and assess mode! errors. These issues have come to be central in system identification in recent years - mainly due to their relevance for robust control. READ MORE

  3. 3. Deriving coarse grained descriptions of particle based simulations

    Author : Johan Nyström; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Coarse graining; Mori-Zwanzig projection; Dissipative particle dynamics;

    Abstract : In the field of molecular simulations, the long standing aim has been to study mechanisms that cannot easily be observed in experiments or understood in terms of more abstract models. Fully detailed molecular dynamics simulations can be extremely successful in many areas, but when applied to mesoscopic systems with a large number of molecules, the time and length scales on which important phenomena take place are often far beyond what is feasible to simulate with modern computers. READ MORE

  4. 4. Behaviour under predation risk - antipredator strategies, behavioural syndromes and sex-specific responses in aquatic prey

    Author : Sanna Harris; Biodiversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; phenotypic integration; Poecilia reticulata; Asellus aquaticus; behavioural syndromes; chemical cues; predation; antipredator behaviour;

    Abstract : In many natural ecosystems, predation is well recognized as a strong evolutionary force, and predator-mediated selection has been demonstrated to induce changes in prey morphology, life history and behaviour. In my thesis, I have focused on behavioural responses in aquatic prey under the risk of predation. READ MORE