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Showing result 1 - 5 of 6 swedish dissertations matching the above criteria.

  2. 1. Urban water management : Modelling, simulation and control of the activated sludge process

    Author : Mats Ekman; Bengt Carlsson; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automatic Control; Reglerteknik;

    Abstract : During the last few decades, wastewater treatment processes in urban water management have become more and more efficient and complex. Several factors such as urbanization, stricter legislations on effluent quality, economics, increased knowledge of the involved biological, chemical and physical processes as well as technical achievements have been important incentives for the development of more efficient procedures for wastewater treatment plants. READ MORE

  4. 2. Modeling and Control of Bilinear Systems : Application to the Activated Sludge Process

    Author : Mats Ekman; Bengt Carlsson; Claes Breitholtz; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bilinear systems; modeling; optimal control; parameter estimation; errors-in-variables; activated sludge process; Automatic control; Reglerteknik;

    Abstract : This thesis concerns modeling and control of bilinear systems (BLS). BLS are linear but not jointly linear in state and control. In the first part of the thesis, a background to BLS and their applications to modeling and control is given. READ MORE

  5. 3. Unwanted wanted sounds : Perception of sounds from water structures in urban soundscapes

    Author : Maria Rådsten Ekman; Mats E Nilsson; Catherine Lavandier; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Perception; psychoacoustics; soundscape; water-sound; psykologi; Psychology;

    Abstract : Water structures, for example, fountains, are common design elements in urban open public spaces. Their popularity is probably explained by their visual attractiveness. Less is known about how the sounds of water struc-tures influence the urban soundscape. READ MORE

  6. 4. Internet-based cognitive behavioural therapy for depression : Effects and experiences among patients with cardiovascular disease

    Author : Mats Westas; Peter Johansson; Johan Lundgren; Ghassan Mourad; Margit Neher; Inger Ekman; Linköpings universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Depressive symptoms; Cardiovascular disease; Cognitive behavioural therapy; patients’ experiences; Internet-based cognitive behavioural therapy;

    Abstract : Depressive symptoms are common in patients with cardiovascular disease (CVD). CVD has a negative impact on patients’ prognosis and health-related quality of life (HRQoL). Guidelines for the treatment of CVD recommend treatment of depressive symptoms. READ MORE

  7. 5. Training measures and technologies for air contaminant risks

    Author : Karl Gummesson; Marianne Ekman Rising; Ing-Marie Andersson; Gunnar Rosén; Annika Vänje; Mats Bohgard; KTH; []
    Keywords : Arbetsmiljö; Attityd; Motivation; Utbildning; Industriell ekonomi och organisation; Industrial Engineering and Management;

    Abstract : AbstractAs air contaminants continue to pose a problem in organizations, more studies are needed to identify and reduce employees’ exposure to air contaminants. Limited research proposes methods for managing air contaminants, especially with focus on reducing exposure by improving safety behavior, safety knowledge, safety attitudes and safety motivation among employees in the workplace, by, for instance, using safety training. READ MORE