Browsing by Subject "Dynamical systems"

Now showing items 1-20 of 31

    • Article  

      Analyticity for a class of non-linear evolutionary pseudo-differential equations 

      Ioakim, Xenakis; Smyrlis, Yiorgos-Sokratis (2014)
      We study the analyticity properties of solutions for a class of non-linear evolutionary pseudo-differential equations possessing global attractors. In order to do this we utilise an analyticity criterion for spatially ...
    • Article  

      Analyticity for Kuramoto-Sivashinsky-type equations in two spatial dimensions 

      Ioakim, Xenakis; Smyrlis, Yiorgos-Sokratis (2016)
      I. Stratis In this work, we investigate the analyticity properties of solutions of Kuramoto-Sivashinsky-type equations in two spatial dimensions, with periodic initial data. In order to do this, we explore the applicability ...
    • Article  

      Are Mental Contents Carried by Neural Vehicles? 

      Raftopoulos, Athanassios (Global Science & Technology Forum, 2017)
      Any discussion concerning representations in cognitive psychology and science assumes that mental representational contents are carried by brain representational vehicles. Recently Sedivy attacked the view that mental ...
    • Conference Object  

      Bond graph based modal representations and model reduction of lumped parameter systems 

      Louca, Loucas S. (Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, 75 Kallipoleos Street, Nicosia 1678, CyprusCorrespondence Address: Louca, L.S.Department of Mechanical and Manufacturing Engineering, University of Cyprus, 75 Kallipoleos Street, Nicosia 1678, Cyprusemail: lslouca@ucy.ac.cy, 2006)
      Modal analysis is extensively used to study dynamic behavior of continuous and lumped parameter linear systems. More specifically, modal analysis can be used for the analysis and controller design of dynamic systems. In ...
    • Conference Object  

      The capacity of unstable dynamical systems-interaction of control and information transmission 

      Charalambous, Charalambos D.; Kourtellaris, C. K.; Loyka, S.; Tzortzis, I. (Institute of Electrical and Electronics Engineers Inc., 2017)
      Feedback capacity is extended beyond classical communication channels, to stochastic dynamical systems, which may correspond to unstable control systems or unstable communication channels, subject to average cost constraints ...
    • Article  

      Centralized Versus Decentralized Optimization of Distributed Stochastic Differential Decision Systems with Different Information Structures-Part I: A General Theory 

      Charalambous, Charalambos D.; Ahmed, N. U. (2017)
      Decentralized optimization of distributed stochastic dynamical systems with two or more controls of the decision makers (DMs) has been an active area of research for over half a century. Although, such decentralized ...
    • Conference Object  

      Complexity of distributed parameter bond graph models 

      Louca, Loucas S. (The Society for Modeling and Simulation International, 2014)
      Modeling metrics and algorithms that assist the development of dynamic system models are essential for efficient use of modeling and simulation in everyday engineering tasks. Various modeling procedures have been proposed ...
    • Article  

      Computational study of the dispersively modified Kuramoto-Sivashinsky equation 

      Akrivis, Georgios; Papageorgiou, Demetrios T.; Smyrlis, Yiorgos-Sokratis (2012)
      We analyze and implement fully discrete schemes for periodic initial value problems for a general class of dispersively modified Kuramoto-Sivashinsky equations. Time discretizations are constructed using linearly implicit ...
    • Conference Object  

      Control of a flexible aircraft using a Lyapunov-based switching scheme with a guaranteed stability margin 

      Jafari, S.; Ioannou, Petros A.; Rudd, L. (2013)
      In dynamical systems with significant uncertainties, implementing a verifiable control scheme which guarantees a satisfactory performance is of great importance. In flight control, the parameters of aeroelastic systems ...
    • Article  

      Distributed function calculation and consensus using linear iterative strategies 

      Sundaram, S.; Hadjicostis, Christoforos N. (2008)
      Given an arbitrary network of interconnected nodes, we develop and analyze a distributed strategy that enables a subset of the nodes to calculate any given function of the node values. Our scheme utilizes a linear iteration ...
    • Article  

      Extension and application of an algorithm for systematic identification of weak coupling and partitions in dynamic system models 

      Rideout, D. G.; Stein, J. L.; Louca, Loucas S. (2009)
      This paper reviews and extends a technique to detect weak coupling (one-way coupling or complete decoupling) among elements of a dynamic system model, and to partition and reduce models in which weak coupling is found. The ...
    • Conference Object  

      Fault-tolerant linear finite state machines 

      Hadjicostis, Christoforos N.; Verghese, G. C. (Institute of Electrical and Electronics Engineers Inc., 1999)
      In this paper we develop a framework for constructing fault-tolerant dynamic systems, focusing primarily on linear finite state machines (LFSMs). Modular redundancy, the traditional approach to fault tolerance, is expensive ...
    • Article  

      A generic tool for building fuzzy cognitive map systems 

      Papaioannou, Maria; Neocleous, Costas K.; Sofokleous, Anastasis A.; Mateou, Nicos H.; Andreou, Andreas S.; Schizas, Christos N. (2010)
      A generic system for simulating complex dynamical systems along the paradigm of fuzzy cognitive maps (FCM) has been created and tested. The proposed system enables a user to design appropriate FCM structures, by specifying ...
    • Conference Object  

      Important issues to be considered in developing fuzzy cognitive maps 

      Neocleous, Costas K.; Papaioannou, Maria; Schizas, Christos N. (2011)
      The formalism of fuzzy cognitive maps as used for the modeling of various dynamical systems is presented with a critical point of view. Various issues related to terminology, concepts, sensitivities, time dependence, ...
    • Conference Object  

      Intelligent vehicle: Closing the loop with the highway 

      Ioannou, Petros A. (2006)
      Vehicle intelligence has been advocated as a potential way of improving safety, driver comfort, traffic flow characteristics and efficiency in general. Despite considerable research efforts in vehicle technologies, vehicles ...
    • Conference Object  

      Linear iterative strategies for transmitting streams of values through sensor networks 

      Sundaram, S.; Hadjicostis, Christoforos N. (2009)
      For any given fixed network of interconnected nodes, with some nodes designated as sources and some nodes designated as sinks, we investigate the problem of transmitting a stream of values from every source node to all of ...
    • Article  

      Linearly implicit schemes for multi-dimensional Kuramoto-Sivashinsky type equations arising in falling film flows 

      Akrivis, Georgios; Kalogirou, Anna; Papageorgiou, Demetrios T.; Smyrlis, Yiorgos-Sokratis (2014)
      This study introduces, analyses and implements space-time discretizations of two-dimensional active dissipative partial differential equations such as the Topper-Kawahara equation
    • Article  

      Modal analysis reduction of multi-body systems with generic damping 

      Louca, Loucas S. (2014)
      Modal analysis of multi-body systems is broadly used to study the behavior and controller design of dynamic systems. In both cases, model reduction that does not degrade accuracy is necessary for the efficient use of these ...
    • Conference Object  

      Modal analysis reduction of multi-body systems with generic damping 

      Louca, Loucas S. (Caltek s.r.l., 2012)
      Modal analysis of multi-body systems is broadly used to study the behavior and controller design of dynamic systems. In both cases, model reduction that does not degrade accuracy is necessary for the efficient use of these ...
    • Conference Object  

      A model accuracy and validation algorithm 

      Sendur, P.; Stein, J. L.; Peng, H.; Louca, Loucas S. (American Society of Mechanical Engineers (ASME), 2002)
      Dynamic models of physical systems with physically meaningful states and parameters have become increasingly important, for design, control and even procurement decisions. The successful use of models in these contexts ...