Now showing items 1-20 of 87

    • Optimal control of a batch bioreactor: a study on the use of an imperfect model 

      Dondo, Rodolfo G.; Marqués, Dardo (2001)
      "This paper presents a numerical study on the performance degradation of a batch bioreactor optimal control strategy when the model used to compute such strategy shows wide variations from the real process. The optimal ...
    • An inference engine based on fuzzy logic for uncertain and imprecise expert reasoning 

      D'Aquila, Raimundo O.; Crespo Crespo, Cecilia; Mate, J. L.; Pazos, J. (2002)
      "This paper addresses the development and computational implementation of an inference engine based on a full fuzzy logic, excluding only imprecise quantifiers, for handling uncertainty and imprecision in rule-based expert ...
    • The evolutionary minority game with local coordination 

      Burgos, Enrique; Ceva, Horacio; Perazzo, Roberto P. J. (2003)
      "We discuss a modification of the evolutionary minority game (EMG) in which agents are placed in the nodes of a regular or a random graph. A neighborhood for each agent can thus be defined and a modification of the usual ...
    • Doubly periodic dispersion maps for 10 and 40 Gbit/s ultra-long-haul transmission 

      Grosz, Diego; Banerjee, S.; Agarwal, A.; Küng, A. P.; Maywar, D. N. (2004)
      "Optical transmission employing doubly periodic dispersion maps at 10 and 40 Gbit/s data rates is reported. The implications of these transmission results in providing added degrees of flexibility in network design, in ...
    • Learning and imitation: transitional dynamics in variants of the BAM 

      Heymann, D.; Perazzo, Roberto P. J.; Schuschny, A. R. (2004)
      "We study the dynamics of self-organized systems when disturbed by shocks. For this purpose, we consider extensions of the “Bar Attendance Model” [1] (BAM), which provides a stylized setting for the analysis of the emergence ...
    • Performance of non-fibre based dispersion compensation for long-haul 10.7 Gbit/s DWDM transmission 

      Grosz, Diego; Maywar, D. N.; Küng, A. P.; Agarwal, A.; Banerjee, S. (2004)
      "Non-fibre based in-line dispersion compensation is employed to achieve long-haul transmission of 80 channels at 10.7 Gbit=s bit rate over 1200 km of LEAF fibre. Average system margins of more than 4 dB and small transmission ...
    • Order and disorder in the local evolutionary minority game 

      Burgos, Enrique; Ceva, Horacio; Perazzo, Roberto P. J. (2005)
      "We study a modification of the Evolutionary Minority Game (EMG) in which agents are placed in the nodes of a regular or a random graph. A neighborhood for each agent can thus be defined and a modification of the usual ...
    • Uniform stability properties of switched systems with switchings governed by digraphs 

      Mancilla-Aguilar, J. L.; García Galiñanes, Rafael; Sontag, E.; Wang, Y. (2005)
      "Characterizations of various uniform stability properties of switched systems described by differential inclusions, and whose switchings are governed by a digraph, are developed. These characterizations are given in ...
    • Stochastic resonance and brownian ratchets 

      Fendrik, Alejandro J.; Romanelli, Lilia; Perazzo, Roberto P. J. (2005)
      "We discuss the connections between Brownian ratchets (BR) and stochastic resonance (SR). We consider a periodic potential energy landscape with no left–right symmetry that is driven by an external force which can be ...
    • Foundations and applications for secure triggers 

      Futoransky, Ariel; Kargieman, Emiliano; Sarraute, Carlos; Waissbein, Ariel (2005)
      "Imagine there is certain content we want to maintain private until some particular event occurs, when we want to have it automatically disclosed. Suppose furthermore, that we want this done in a (possibly) malicious host. ...
    • Uncertainty relation for the optimization of optical-fiber transmission systems simulations 

      Tolisano, T.; Callegari, Fulvio A.; Grosz, Diego; Fragnito, Hugo L.; Rieznik, Andrés (2005)
      “The mathematical inequality which in quantum mechanics gives rise to the uncertainty principle between two non commuting operators is used to develop a spatial step-size selection algorithm for the Split-Step Fourier ...
    • Impact of DCF properties on system design 

      Essiambre, René-Jean; Winzer, Peter; Grosz, Diego (2006)
      "The dispersion-compensating fiber is an important optical element of current and future optical networks. In this paper, we review the impact that various properties of dispersion-compensating fibers has on the performance ...
    • An extension of LaSalle’s invariance principle for switched systems 

      Mancilla-Aguilar, J. L.; García Galiñanes, Rafael (2006)
      "This paper addresses invariance principles for a certain class of switched nonlinear systems. We provide an extension of LaSalle’s Invariance Principle for these systems and state asymptotic stability criteria. We also ...
    • Learning by knowledge sharing in autonomous intelligent systems 

      García-Martínez, Ramón; Borrajo, Daniel; Maceri, Pablo; Britos, Paola Verónica (2006)
      "Very few learning systems applied to problem solving have focused on learning operator definitions from the interaction with a completely unknown environment. In order to achieve better learning convergence, several agents ...
    • Why nestedness in mutualistic networks? 

      Burgos, Enrique; Ceva, Horacio; Perazzo, Roberto P. J.; Devoto, Mariano; Medan, Diego; Zimmermann, Martín; Delbue, Ana María (2007)
      "We investigate the relationship between the nested organization of mutualistic systems and their robustness against the extinction of species. We establish that a nested pattern of contacts is the best possible one as far ...
    • Piet: a GIS-OLAP implementation 

      Vaisman, Alejandro Ariel; Gómez, Leticia Irene; Kuijpers, Bart; Escribano, Ariel (2007)
      "Data aggregation in Geographic Information Systems (GIS) is a desirable feature, although only marginally present in commercial systems, which also fail to provide integration between GIS and OLAP (On Line Analytical ...
    • Time delay properties of stochastics-resonance information transmission line 

      Ibáñez, Santiago Agustín; Fendrik, Alejandro J.; Fierens, Pablo Ignacio; Grosz, Diego; Perazzo, Roberto P. J. (2008)
      "In this paper we analyze the properties of a chain of forward-coupled bi-stable over-damped oscillators. It is well known that this system displays stochastic resonance and behaves as a transmission line when an adequate ...
    • Two classes of bipartite networks: nested biological and social systems 

      Burgos, Enrique; Ceva, Horacio; Hernández, Laura; Perazzo, Roberto P. J.; Devoto, Mariano; Medan, Diego (2008)
      "Bipartite graphs have received some attention in the study of social networks and of biological mutualistic systems. A generalization of a previous model is presented, that evolves the topology of the graph in order to ...
    • Microfluidic device concept based on microoscillator dynamics at a liquid–liquid interface 

      Allievi, Alejandro (2008)
      "Oscillating microbeams and microplates have been used extensively as sensing components for property detection in fluids. In liquids, their quality factor Q is drastically decreased, thus affecting a microsensor’s resolution. ...
    • Causality study and numerical response of the magnetic permeability as a function of the frequency of ferrites using Kramers–Kronig relations 

      Fano, Walter Gustavo; Boggi, Silvina; Razzitte, Adrián C. (2008)
      "In this paper, the numerical treatment of magnetic loss of NiZn, MnZn, Ni2Y, and NiZnCu ferrite and their composites, by using Krameres–Kronig relations, is investigated. The complex magnetic permeability spectra for ...