• Modeling of the Biodegradation in Multiphase Stirred Tank Reactor 

      Turtoi, Maria; Hopulele, Traian; Caraman, Sergiu ("Dunarea de Jos" University of Galati, 2001)
      The surface response methodology is used to verify predicted models and to adapt them on particular conditions of growth. The effect of solvent addition during the linear cell growth on the enhancement of biodegradation ...
    • Analysis of a Neuro-Fuzzy Approach of Air Pollution: Building a Case Study 

      Neagu, Ciprian-Daniel; Neagu, Daniela; Georgescu, Lucian; Palade, Vasile ('Dunarea de Jos" University of Galati, 2001)
      This work illustrates the necessity of an Artificial Intelligence (AI)-based approach of air quality in urban and industrial areas. Some related results of Artificial Neural Networks (ANNs) and Fuzzy Logic (FL) for ...
    • Software System for Generating, Identification and Simulation of the Biotechnological Processes Models 

      Caraman, Sergiu; Frangu, Laurenţiu; Turtoi, Maria ("Dunarea de Jos" University of Galati, 2001)
      The paper deals with the development of a software system (BIOCALC) for the modelling, identification and simulation of the biotechnological processes. BIOCALC is based on the algorithm developed by George Bastin and ...
    • Limitations of a Static VAr Compensator (SVC) with Switched Capacitor Operating as an Active Filter 

      Judele, Stelian; Solea, Răzvan; Dugan, Viorel ("Dunarea de Jos" University of Galati, 2001)
      The goal of this paper is to analyze the limitations of a static VAr compensator (SVC) with switched capacitor, when this operate as an active filter. The limitations considered and studied by simulation are in the zone ...
    • On Activity Modelling in Process Modelling 

      Aiordăchioaie, Dorel ("Dunarea de Jos" University of Galati, 2001)
      The paper is looking to the dynamic feature of the meta-models of the process modelling process, the time. Some principles are considered and discussed as main dimensions of any modelling activity: the compatibility of ...
    • Modelling Non-Stationary Wind Speed for Renewablwe Energy Systems Control 

      Nichita, Cristian; Luca, Daniel; Dakyo, B.; Ceangă, Emil; Cutululis, Nicolaos Antonio ("Dunarea de Jos" University of Galati, 2001)
      This paper deals with the modelling of the wind speed, treated as a nonstationary process. In the proposed modelling methods, the wind speed has two components: a long and medium term-component, described by an available ...
    • On Exponential and Asymptotic Estimation of State Variables in Bioprocesses 

      Selişteanu, Dan; Ionete, Cosmin; Petre, Emil ("Dunarea de Jos" University of Galati, 2001)
      The paper presents on-line estimation strategies for bioprocesses, which are characterized by strongly nonlinear dynamics. A general form for the state observers is analysed and the exponential observability of bioprocesses ...
    • On a Takagi-Sugeno Fuzzy Controller with Non-Homogenous Dynamics 

      Precup, Radu-Emil; Preitl, Ştefan ("Dunarea de Jos" University of Galati, 2001)
      The paper proposes a Takagi-Sugeno fuzzy controller with non-homogenous controller dynamics with respect to the two input channels, that means, in the linear case, different transfer functions with respect to the reference ...
    • Integrating Hypermedia Objects in an Tutoring System 

      Pecheanu, Emilia; Ştefănescu, Diana; Sabin Corneliu, Buraga; Istrate, Adrian ("Dunarea de Jos" University of Galati, 2001)
      The paper describes the internal architecture of an Intelligent Tutoring System, CSTutor. The architectural design of the tutorial system was developed in a collaborative work at the Department of Computer Science of the ...
    • Stability criteria for cellular neural networks 

      Danciu, Daniela; Răsvan, Vladimir ("Dunarea de Jos" University of Galati, 2001)
      A cellular neural network is an artificial neural network which features a multidimensional array of neurons and local interconnections among the cells. Neural networks are systems with several equilibrium states. It is ...
    • Robust Control Methods for a Recycle Bioreactor 

      Ionete, Cosmin; Petre, Emil; Selişteanu, Dan ("Dunarea de Jos" University of Galati, 2001)
      The paper presents a robust control design strategy for bioprocesses, which are characterized by strongly nonlinear dynamics. More precisely, we present the H2 methodology in order to compute the controller for a recycle ...
    • Algorithms for Wireless Channel Equalization with Joint Coding and Soft Decizion Feedback 

      Dobrescu, Radu; Andone, Dana; Dobrescu, Matei ("Dunarea de Jos" University of Galati, 2001)
      The paper proposes a new approach based on Joint Entropy Maximisation (JEM) using a soft decision feedback equalizer (S-DE) to suppress error propagation. In its first section, the paper presents the principle of the ...
    • Supervisory Control Technique for an Assembly Workstation as a Dynamic Discrete Event System 

      Cernega, Daniela Cristina; Mînzu, Viorel ("Dunarea de Jos" University of Galati, 2001)
      This paper proposes a control problem statement in the framework of supervisory control technique for the assembly workstations. A desired behaviour of an assembly workstation is analysed. The behaviour of such a workstation ...
    • Comments on Clock Models in Hybrid Automata and Hybrid Control Systems 

      Oltean, Virginia Ecaterina; Cârstoiu, Dorian ("Dunarea de Jos" University of Galati, 2001)
      Hybrid systems have received a lot of attention in the past decade and a number of different models have been proposed in order to establish mathematical framework that is able to handle both continuous and discrete ...
    • Neural Network Schemes in Cartesian Space Control of Robot Manipulators 

      Boutalis, Yiannis S.; Moise, Adrian; Mertzios, B. G. ("Dunarea de Jos" University of Galati, 2001)
      In this paper we are studying the Cartesian space robot manipulator control problem by using Neural Networks (NN). Although NN compensation for model uncertainties has been traditionally carried out by modifying the joint ...