Search for dissertations about: "Process Disturbance"

Showing result 1 - 5 of 125 swedish dissertations containing the words Process Disturbance.

  1. 1. A Browning process The case of Dar es Salaam city

    University dissertation from Stockholm : KTH

    Author : Othmar Simtali Mng'ong'o; KTH.; [2005]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social sciences; green plant; green structure; browining process; ecological area; sustainable city; living environment; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Abstract : The study is about how green spaces and structures of Dar es Salaam city, quantitatively and qualitatively, are browning out. It also tries to explore the different reasons behind the browning tendency, and what it means to the function of the city and to the daily form of life of the inhabitants. READ MORE

  2. 2. Utility Disturbance Management in the Process Industry

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Anna Lindholm; Lunds universitet.; Lund University.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; utilities; process control; plant-wide disturbances; availability; buffer tanks;

    Abstract : Use of utilities, such as steam and cooling water, is very common at industrial sites. Utilities are often shared between several production areas, and a disturbance in the supply of a utility is therefore likely to affect a large part of the production site, and cause great loss of revenue. READ MORE

  3. 3. Hierarchical Scheduling and Utility Disturbance Management in the Process Industry

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Anna Lindholm; Lunds universitet.; Lund University.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; plant-wide disturbances; utilities; production control; production scheduling; process industry; enterprise modeling; availability; receding horizon control;

    Abstract : This thesis deals with control of production at large-scale process industrial sites in the presence of disturbances. The main focus is on disturbances in the supply of utilities such as steam, cooling water and electricity. READ MORE

  4. 4. Towards Improved Control of TMP Refining Processes

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Karin Eriksson; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control; dynamic modeling; process limitations; simplified decoupling; Refiner; refining zone temperature; internal interconnections;

    Abstract : The need for improved energy usage has become a key issue in all industrial sectors. In the energy demanding production of mechanical pulps many efforts havefocused on design development, but regarding control of refiners, there is still a potential for improvements. READ MORE

  5. 5. Resistance and recolonization of bryophyte assemblages following disturbances - detecting patterns and exploring mechanisms

    University dissertation from Stockholm : Department of Botany, Stockholm University

    Author : Martin Schmalholz; Stockholms universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bryophytes; boreal forest; boulders; clear-cutting; disturbance; establishment; insect outbreaks; microtopography; recolonization; resistance; spatial heterogeneity; succession; wildfires; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; växtekologi; Plant Ecology;

    Abstract : Disturbances are ubiquitous features of most northern forest ecosystems. The subsequent response of plant assemblages on both short (resistance or not) and long term (recolonization or not) will depend on a number of factors operating at several spatial scales. READ MORE