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

Afișează articolele 81-100 of 230

    • Gis Components: an Overview of the Software Format Approaches 

      Neagu, Daniela; Neagu, Ciprian-Daniel ("Dunarea de Jos" University of Galati, 2000)
      The paper proposes a softwarel multimedia point of view of the resources and fi1e formats used in GIS applications. An overview of the most known software approaches for GIS data management and components is proposed in ...

    • Hankel-Norm Approximation Method Applied for High Order Model Reduction to Robust Contriller Synthesis 

      Copot, Cosmin; Ionescu, Clara M.; De Keyser, Robain; Dugan, Viorel ("Dunarea de Jos" University of Galati, 2012)
      In this paper, is presented an application of the Hankel–norm approximation method for model order reduction, to obtain a lower order model with the same performance. In order to show the effectiveness of the Hankel-methodologie ...

    • A Hybrid Aproach to Dynamic Course Generation on the WWW 

      Ştefănescu, Diana; Pecheanu, Emilia; Dumitru, Luminiţa ("Dunarea de Jos" University of Galati, 2000)
      In recent years, hypermedia has been grown in interest in advanced research on teaching and learning. Futhermore, the extension of hypermedia toward intelligent hypermedia comes more than obviously to meet specific ...

    • Hybrid modelling based control of an processing / reprosessing mechatronicline served by an autonomous robotic system 

      Petrea, George; Filipescu, Adriana; Filipescu, Adrian; Serbencu, Adriana ("Dunarea de Jos" University of Galati, 2013)
      The new idea in this paper is to make a processing line capable of reprocessing pieces that have not passed the quality test. The focus is to provide a model of the processing line and to introduce in the process a wheeled ...

    • An ICA Based Method for Texture Recognition 

      Colţuc, Daniela; Fournel, Thierry; Becker, Jean-Marie; Boutant, Yann ("Dunarea de Jos" University of Galati, 2006)
      The method proposed in this paper uses the Independent Component Analysis (ICA) for an application of unsupervised recognition of textures. The analysed texture is modelled by a weighted sum of almost statistically independent ...

    • Identification of a Nonlinear Pneumatic Servo System Using Modular Neural Networks 

      Bogadan, Codreş; Puşcaşu, Gheorghe; Murariu, Gabriel ("Dunărea de Jos" University of Galati, 2010)
      Sometimes, in the case of highly nonlinear systems the traditional approaches of identification and control could be difficult to implement. In this case, a good alternative are the neural networks. In this paper a modular ...

    • Identification of the Non-Linear Systems Using Internal Recurrent Neural Networks 

      Puşcaşu, Gheorghe; Codreş, Bogdan; Stancu, Alexandru ("Dunarea de Jos" University of Galati, 2006)
      In the past years utilization of neural networks took a distinct ampleness because of the following properties: distributed representation of information, capacity of generalization in case of uncontained situation in ...

    • Immpact of Bandwidth for Various Services in Heterogeneous Network and Quality of Service Via Communication Technologies in Malaysian Higher Educational 

      Mohd Zin, Abdullah; Ismail, Mohd Nazri ("Dunarea de Jos" University of Galati, 2007)
      This study focuses on heterogeneous services and communication technologies for retrieving and sending information between students and lecturers in Malaysian higher educational institutes. It intends to investigate pattern ...

    • Imperfect Data in Database Context. How are they Stored in Extended Relational Databases? 

      Tudorie, Cornelia ("Dunarea de Jos" University of Galati, 2002)
      Building a more accurate reality model requires taking into account imperfect information present in our knowledge and language. This paper presents several aspects of data imperfection in the database context and the ...

    • Improving the Power Factor at Unbalanced Consumers 

      Bălănuţă, Ciprian; Munteanu, Toader; Fetecău, Grigore ("Dunarea de Jos" University of Galati, 2010)
      Unbalanced consumers have led to power quality problems. It is therefore necessary to have on hand solutions and equipment capable of improving the power quality. This paper provides a comparison on improving the power ...

    • Indirect Control of a Low Power Single-Phase Active Power Filter 

      Epure, Silviu; Rosu, Emil ("Dunarea de Jos" University of Galati, 2010)
      This paper deals with a low power, single phase active filter used to compensate nonlinear loads. The filter uses the indirect control method and it is based on a particular connection between filter, polluting load and ...

    • Indirect Control of a Single-Phase Active Power Filter 

      Roşu, Emil; Culea, Mihai; Dumitriu, Teodor; Munteanu, Traian ("Dunarea de Jos" University of Galati, 2006)
      The control of shunt active power filters using PWM inverters consists in generating a reference by separating, using different methods, the harmonics to be eliminated. The methods used are time-consuming and need dedicated ...

    • The Influence of Electric Transformers' Specific Parameters Modification on Power Distributions and on Technological Appropriate Consumption (TAC) Within the Energetic System 

      Voncilă, Ion; Iliuţă, Maria; Dumitrescu, Mariana; Gurguiatu, Gelu (The Annals of "Dunarea de Jos" University of Galati, 2005)
      The paper deals with a comparative analysis – using DINIS(E) programming environment – of the way electric transformers' specific variables (Iron losses, the parameters of the equivalent scheme, the level of primary power ...

    • Influence of High Performance Voltage Converters Supply Upon the Induction Motors Behaviour 

      Alexandru, Decebal; Enache, Monica-Adela; Marinas, Paul ("Dunarea de Jos" University of Galati, 2002)
      The induction motors supply by converters leads to a distorted regime accompanied by some parasite torques and some supplementary losses. These aspects are emphasized further on because their quantitative determinations ...

    • The Influence of Non-Homogenous Dielectric Material in the Waveguide Propagation Modes 

      Badea, Nicolae; Voncilă, Ion ("Dunarea de Jos" University of Galati, 2006)
      The aim of this paper is to indicate the equations of electromagnetic wave in homogenous and non-homogenous dielectric material, estabilising the bundary conditions and solves by FEM the equations of the electromagnetic ...

    • The Influence of the Ship's Steering Machine Over Yan and Roll Motions 

      Nicolau, Viorel ("Dunarea de Jos" University of Galati, 2003)
      The steering machine is a nonlinear system, with two important limitations: the maximum rudder angle and rudder rate. Therefore, the commands from yaw and rudder-roll control systems are modified and the expected effect ...

    • Integrated Solid Oxide Fuel Cell Power System Characteristics Prediction 

      Gâlceanu, Marian; Orsello, Glanmichele ("Dunarea de Jos" University of Galati, 2009)
      The main objective of this paper is to deduce the specific characteristics of the CHP 100kWe Solid Oxide Fuel Cell (SOFC) Power System from the steady state experimental data. From the experimental data, the authors have ...

    • 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 ...

    • Intelligent Software Agents for decizion Making in Enterprise 

      Novac-Ududec, Cornelia (Universitatea "Dunarea de Jos" of Galati, 2013)
      This paper will attempt to highlight the complexity of decision-making mechanisms as well as the interest of integrating the cognitive dimension into the simulation models, with a view to evaluate the impact of technological ...

    • Invariance Properties of Time-Varying Linear Systems 

      Păstrăvanu, Octavian; Matcovschi, Mihaela ("Dunarea de Jos" University of Galati, 2007)
      This paper formulates and proves two types of necessary and sufficient conditions for the characterization of positively (flow) invariant sets with respect to the state-space trajectories of the time-varying (non-autonomous) ...