Sökning: "Dynamiska system"

Visar resultat 1 - 5 av 130 avhandlingar innehållade orden Dynamiska system.

  1. 1. Optimal Decisions with Limited Information

    Författare :Ather Gattami; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; systems; numerical analysis; Computer science; Convex Optimization; Graph Theory; Team Decision Theory; Game Theory; control; Datalogi; numerisk analys; system; kontroll; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Sammanfattning : This thesis considers static and dynamic team decision problems in both stochastic and deterministic settings. The team problem is a cooperative game, where a number of players make up a team that tries to optimize a given cost induced by the uncertainty of nature. LÄS MER

  2. 2. Making the Dead Alive : Dynamic Routines in Risk Management

    Författare :Martin Lundgren; Åsa Ericson; Johan Holmqvist; Stewart James Kowalski; Luleå tekniska universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Risk management; information security; routine; practice; asset identification; risk analysis; risk treatment; organizational aspects.; Information systems; Informationssystem; Centrumbildning - Centrum för säkerhet i samhälle och kritiska infrastrukturer CISS ; Centre - Centre for Critical Infrastructure and Societal Security CISS ;

    Sammanfattning : Risk management in information security is relevant to most, if not all, organizations. It is perhaps even more relevant considering the opportunities offered by the digitalization era, where reliably sharing, creating, and consuming information has become a competitive advantage, and information has become an asset of strategic concern. LÄS MER

  3. 3. On Reduction of Production Disturbances in Manufacturing Systems Based on Discrete-Event Simulation

    Författare :Arne Ingemansson; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automatiska system; robotteknik; reglerteknik; Production technology; Produktionsteknik; control engineering; robotics; Automation; manufacturing system; Discrete-event simulation DES ; production disturbance reduction;

    Sammanfattning : Improved efficiency in manufacturing systems to achieve increased output and thus reduced production disturbances is a vital area. DES (Discrete-Event Simulation) can visualize and study the dynamic issues related to total efficiency in manufacturing systems. A methodology for production disturbance reduction is presented. LÄS MER

  4. 4. Exploring the Effects of ICT on Environmental Sustainability: From Life Cycle Assessment to Complex Systems Modeling

    Författare :Mohammad Ahmadi Achachlouei; Åsa Moberg; Göran Finnveden; Lorenz M. Hilty; Chris Preist; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Information and communication technology ICT ; sustainability assessment; electronic media; tablet; print media; magazine; Internet; energy; environmental impact; life cycle assessment LCA ; System Dynamics; agent-based modeling; differential equations; simulation modeling; complex and dynamic systems modeling; Informations- och kommunikationsteknik IKT ; hållbarhetsbedömning; elektroniska media; surfplatta; tryckta media; tidskrift; Internet; energi; miljöpåverkan; simulering; differentialekvationer; modellering av komplexa och dynamiska system; System Dynamics; livscykelanalys LCA ; agentbaserad modellering; Planering och beslutsanalys; Planning and Decision Analysis; Informations- och kommunikationsteknik; Information and Communication Technology; Industriell ekologi; Industrial Ecology; Tillämpad matematik och beräkningsmatematik; Applied and Computational Mathematics;

    Sammanfattning : The production and consumption of information and communication technology (ICT) products and services continue to grow worldwide. This trend is accompanied by a corresponding increase in electricity use by ICT, as well as direct environmental impacts of the technology. Yet a more complicated picture of ICT’s effects is emerging. LÄS MER

  5. 5. Correlation between Track Irregularities and Vehicle Dynamic Response Based on Measurements and Simulations

    Författare :Tomas Karis; Mats Berg; Jens Nielsen; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; track irregularities; vehicle response; wheel–rail force; axle box acceleration; Dynotrain; Gröna Tåget; multi-body system; simulations; spårlägesfel; fordonsrespons; hjul–räl-krafter; axelboxacceleration; Dynotrain; Gröna Tåget; flerkroppssystem system; simuleringar; Järnvägsgruppen - Fordonsteknik; Järnvägsgruppen - Fordonsteknik; Farkostteknik; Vehicle and Maritime Engineering; Järnvägsgruppen - Infrastruktur; Järnvägsgruppen - Infrastruktur;

    Sammanfattning : Deviations from the design track geometry are called track irregularities, which are a main excitation mechanism in the track–vehicle dynamic system, and very important to monitor and maintain to have trac on a line run safely and comfortably. Especially during vehicle acceptance testing, it is important that a new vehicle behaves close to design predictions and within limit values, thus it is important to be able to describe track irregularities in a consistent way. LÄS MER