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Showing result 1 - 5 of 39 swedish dissertations matching the above criteria.

  2. 1. A Co-Simulation Approach for Hydraulic Percussion Units

    Author : Håkan Andersson; Daniel Leidermark; Kjell Simonsson; Daniel Hilding; Mikael Schill; Magnus Eek; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This Licentiate of Engineering thesis concerns modelling and simulation of hydraulic percussion units. These units are often found in equipment for breaking or drilling in rock and concrete, and are also often driven by oil hydraulics, in which complex fluid-structure couplings are essential for their operation. READ MORE

  4. 2. Dopamine and the regulation of movements - significance of nigral and striatal dopamine release in normal, hemiparkinsonian and dyskinetic rats

    Author : Daniel Andersson; Göteborgs universitet; []
    Keywords : dopamine; substantia nigra; striatum; L-DOPA; dyskinesias; serotonin;

    Abstract : Introduction: The nigrostriatal dopamine (DA) containing neurones are a pivotal component in the basal ganglia, a network that regulates movement. Degeneration of these neurones causes the cardinal symptoms of Parkinson’s disease (PD). READ MORE

  5. 3. Artificial Earth : On the Genealogy of Planetary Technicity

    Author : Daniel Andersson; Jonas Anshelm; Johan Hedrén; Alf Hornborg; Linköpings universitet; []
    Keywords : HUMANIORA; HUMANITIES;

    Abstract : As technology transforms the conditions by which we come understand and interact with the world around us, it is relevant to ask questions about the historicalontological aspects of these patterns of change. The widespread adoption of the term “Anthropocene” during the last twenty years indicates the wide acceptance of the view that human activities have become such a powerful driving force for global environmental change that our destructive legacy will be recorded in geological history. READ MORE

  6. 4. Mitochondria, contractility and Ca2+ handling : cardiac and skeletal muscle adaptations in health and disease

    Author : Daniel C Andersson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Contractility is a fundamental feature of skeletal and cardiac muscles. An indispensable step in the cellular signal for contraction is a transient elevation in cytoplasmic free [Ca2+] ([Ca2+]i). Both the production of contractile force and Ca2+ handling processes are highly energy demanding. READ MORE

  7. 5. Contributions to the Stochastic Maximum Principle

    Author : Daniel Andersson; Boualem Djehiche; Fred Espen Benth; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematical statistics; Matematisk statistik;

    Abstract : This thesis consists of four papers treating the maximum principle for stochastic control problems. In the first paper we study the optimal control of a class of stochastic differential equations (SDEs) of mean-field type, where the coefficients are allowed to depend on the law of the process. READ MORE