Sökning: "composed simulation"

Visar resultat 1 - 5 av 75 avhandlingar innehållade orden composed simulation.

  1. 1. Reduction Techniques for Finite (Tree) Automata

    Författare :Lisa Kaati; Parosh Aziz Abdulla; Frank Drewes; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Finite automata; tree automata; bisimulation; minimization; simulation; composed bisimulation; composed simulation; Datavetenskap; Computer Science;

    Sammanfattning : Finite automata appear in almost every branch of computer science, for example in model checking, in natural language processing and in database theory. In many applications where finite automata occur, it is highly desirable to deal with automata that are as small as possible, in order to save memory as well as excecution time. LÄS MER

  3. 2. Multi-Agent Systems for Distributed Control of District Heating Systems

    Författare :Fredrik Wernstedt; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Multi-Agent System; Distributed Control; District Heating System; Supply Chain Management; Simulation;

    Sammanfattning : This thesis describes an investigation into the use of multi-agent systems for automatic distributed control of district heating systems. A district heating system is basically composed of production units, a distribution network, and a large number of consumer substations. LÄS MER

  4. 3. Studies of Charge Transport Processes in Dye-sensitized Solar Cells

    Författare :Kristofer Fredin; Anders Hagfeldt; Mukundan Thelakkat; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; solar cell; mesoporous; dye-sensitized; model; simulation; electron transport; trap distribution; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : Dye-sensitized solar cells (DSCs) have attained considerable attention during the last decade because of the potential of becoming a low cost alternative to silicon based solar cells. Although efficiencies exceeding 10% in full sunlight have been presented, major improvements of the system are however limited. LÄS MER

  5. 4. Modeling Solute Transport in Fractured Rocks-Role of Heterogeneity, Stagnant Water Zone and Decay Chain

    Författare :Batoul Mahmoudzadeh; Longcheng Liu; Joaquin Martinez; Lanru Jing; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solute transport model; Fractured rock; Stagnant water zone; Rock matrix diffusion; Radionuclide decay chain; Geological layers; Laplace transform; Simulation;

    Sammanfattning : A model is developed to describe solute transport and retention in fractured rocks. It accounts for the fact that solutes not only can diffuse directly from the flowing channel into the adjacent rock matrix composed of different geological layers but can also at first diffuse into the stagnant water zone occupied in part of the fracture and then from there into the rock matrix adjacent to it. LÄS MER

  7. 5. Micromechanical Modelling of Wood and Fibre Properties

    Författare :Kent Persson; Byggnadsmekanik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; Byggnadsteknik; Building construction; Microfibril angle; Density; Hygroexpansion; Stiffness; Simulation; Wood; Fibre; pollution control; Miljöteknik; kontroll av utsläpp; Material technology; Materiallära; materialteknik;

    Sammanfattning : Wood is a material with mechanical properties that vary markedly, both within a tree and among trees. Moisture changes lead to shrinkage or swelling and modify the mechanical properties. LÄS MER