Sökning: "freeness"
Visar resultat 1 - 5 av 12 avhandlingar innehållade ordet freeness.
1. On the asymptotic spectral distribution of random matrices : closed form solutions using free independence
Sammanfattning : The spectral distribution function of random matrices is an information-carrying object widely studied within Random matrix theory. In this thesis we combine the results of the theory together with the idea of free independence introduced by Voiculescu (1985). LÄS MER
2. Development and evaluation of methods for control and modelling of multiple-input multiple-output systems
Sammanfattning : In control, a common type of system is the multiple-input multiple-output (MIMO) system, where the same input may affect multiple outputs, or conversely, the same output is affected by multiple inputs. In this thesis two methods for controlling MIMO systems are examined, namely linear quadratic Gaussian (LQG) control and decentralized control, and some of the difficulties associated with them. LÄS MER
3. Process modelling in pulp and paper manufacture : Application studies with aspects of energy efficiency and product quality
Sammanfattning : The manufacture of pulp and paper is an energy intensive process configured of several unit processes that shape a network of flows of wood chips, chemical pulp, mechanical pulp, board and other important components. Improved energy efficiency supports sustainability of the process and the products. LÄS MER
4. Essays on Nonlinear Pricing and Welfare
Sammanfattning : The price of a good is said to be nonlinear if the unit price not is constant but depends on some aspect of the quantity (or quality) purchased. This form of pricing is commonly used in many industries, e.g. the electricity and water industries, and has many desirable properties. LÄS MER
5. High temperature CTMP from birch
Sammanfattning : This thesis is intended to contribute to understanding of the chemithermomechanical pulping of birch intended for high freeness grades. It focuses on the effects that conditions during pre‐treatment, i.e. LÄS MER