Căutare Annals of the University "Dunarea de Jos" of Galati. Fascicle III: Electrotechnics, Electronics, Automation Control and Informatics după Titlu

Afișează articolele 131-150 of 230

    • A New Method of Gene Coding for Genetic Algorithm Designed for Parametric Optimization 

      Belea, Radu ("Dunarea de Jos" University of Galati, 2003)
      In a parametric optimization problem the genes code the real parameters of the fitness function. There are two coding techniques known under the names of: binary coded genes and real coded genes. The comparison between ...

    • A New Numeral Calculus Solver-Numerical Engineering Software 

      Militaru, Romulus; Călin, Liviu Adrian; Călugăru, George-Cristian; Georgescu, Adrian-Lorel ("Dunarea de Jos" University of Galati, 2010)
      The project presented in this paper, entitled Numerical Engineering Software is an integrated solution which contains a various range of numerical methods for the solving of diverse calculations and mathematical ...

    • New Power Optimization Posssibilities 

      Bitoleanu, Alexandru; Popescu, Mihaela ("Dunarea de Jos" University of Galati, 2002)
      In this paper there are given a few mathematical relations for the power analysis in un-sinusoidal regime. If the voltage is sinusoidal and the current is unsinusoidal, the apparent power will be ascertained by the active ...

    • New Quantum Cryptographic Protocol 

      Anghel, Cătălin (Galati University Press, 2011-07)

    • New Strategy Combine Cluster Head's Data for Increasing WSN Lifetime 

      Fanian, Fakhrosadat; Rafsanjani, Marjan Kuchaki ("Dunarea de Jos" University of Galati, 2013)
      This article represents a new method to select several distinct routes among cluster heads want to limit the direct connection of all cluster heads and base station. Cluster heads use those near base station to transfer ...

    • Non-Conventional Method for Friction Compensation in DC Drive Position Tracking 

      Dumitriu, Teodor; Culea, Mihai; Nichita, Mihai; Munteanu, Traian ("Dunarea de Jos" University of Galati, 2006)
      Friction, especially its nonlinear components, may degrade the tracking performance of any servo drive systems. Focused on high precision positioning of DC electrical drive the paper proposes an easy method to compensate ...

    • A Noval Comparison of Class D and Class E Inverter Based High Frequency Application 

      Arumugam, S.; Rama Reddy, S. ("Dunarea de Jos" University of Galati, 2011)
      This paper deals with the simulation and implementation of class E inverter based induction heater system. Class E inverter is analyzed; simulated and implemented.

    • A Novel Analysis of Class e Inverter Based Induction Heating System 

      Arumugam, S.; Rama Reddy, S. ("Dunarea de Jos" University of Galati, 2010)
      This paper deals with the simulation and implementation of class E inverter based induction heater system. Class E inverter is analyzed; simulated and implemented. Utility frequency AC Power is converted into high frequency ...

    • A Novel Feature Extraction Method for Isolated Word Recognition Based on Nested Temporal Averaging 

      Dogaru, Radu; Costache, Gabriel Nicolae; Dumitru, Octavian; Gavat, Inge ("Dunarea de Jos" University of Galati, 2006)
      A novel preprocessing method is proposed. It has a reduced complexity and therefore is aimed to be used in low power, VLSI implemented, speech recognizers. Our algorithm extracts a feature vector made from up to 3 feature ...

    • A Novel Parametric Model for the Human Respiratory System 

      Ionescu, Clara Mihaela ("Dunarea de Jos" University of Galati, 2003)
      The purpose of this work is to present some recent results in an ongoing research project between Ghent University and Chess Medical Technology Company Belgium. The overall aim of the project is to provide a fast method ...

    • A Novel ZCS-ZVS Hybrid Bidirectional DC-DC Converter for Fuel Cell and Supercapacitor Application 

      Rama Reddy, S. (The Annals of "Dunarea de Jos" University of Galati, 2010)
      This paper proposes a novel ZCS-ZVS hybrid bidirectional DC-DC converter based on fuel cells and supercapacitor devices. The described converter employs only one high frequency transformers to couple the half-bridge and ...

    • Numerical Evaluation of Reliability Indicators Under Optimal Renewal Strategies 

      Mărăşescu, Nicolae ("Dunarea de Jos" University of Galati, 2012)
      This paper investigates the opportunity of using a numerical procedure for computing the renewal parameters of an equipment. The reasons of this approach reside in the sampled way we measure the process variables and the ...

    • Numerical Treatment of some Complex Dynamic Processes of Saturated Induction Machine 

      Câmpeanu, Aurel; Ionescu, Augustin-Iulian; Câmpeanu, Toma ("Dunarea de Jos" University of Galati, 2002)
      Three variants for the mathematical models of the saturated induction machine (the exact one, the classical one and the simplified one) are used for the analysis of the reversal process combined with one short mechanical ...

    • Omline industrial Proces Broacast and Control Based on IP and Serial Networks 

      Paraschiv, Nicolae; Popa, Alexandru; Popa, Cristian ("Dunarea de Jos" University of Galati, 2007)
      The Internet network in conjunction with a strong security policy can be an ideal online broadcast system for the industrial processes monitoring and control. Because the distributed controllers are connected through ...

    • 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 ...

    • 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 ...

    • On Estimation of the Orientation of Mobele Robots Ising Turning Fuctions and Sonar Information 

      Aiordăchioaie, Dorel ("Dunarea de Jos" University of Galati, 2003)
      SONAR systems are widely used by some artificial objects, e.g. robots, and by animals, e.g. bats, for navigation and pattern recognition. The objective of this paper is to present a solution on the estimation of the ...

    • 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 Image Transmission in Communication Channels Using Alamouti Space-Time Codes 

      Andrei, Mihaela; Nicolau, Viorel ("Dunarea de Jos" University of Galati, 2012)
      Transmitting large amounts of data through wireless communication channels, at high speed and low error probability, is a major challenge for the researchers in the field. In this paper, aspects of image transmission in ...

    • On Phenomena Based Metamodelling - A Process System Engineering Point Of View 

      Aiordăchioaie, Dorel; Aoyama, Atsushi; Chatterjee, Ranajit; Naka, Yuji ("Dunarea de Jos" University of Galati, 2000)
      This work is looking to methodological aspects of process modelling. The point of view is more from Process System Engineering (PSE) in order to develop formal and generic techniques for process modelling, and to use ...