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

Afișează articolele 62-81 of 230

    • An Efficient DC-DC Converter with Bidirectional Power Flow 

      Rajarajeswari, N.; Thanushkodi, K. ("Dunarea de Jos" University of Galati, 2008)
      This paper introduces a Bi-directional DC-DC converter with adaptive fuzzy logic controller. Bidirectional power flow is obtained by same power components and provides a simple, efficient, and galvanically isolated ...

    • Electrical Engineering Guide 

      Marinescu, Cristina-Mihaela ("Dunarea de Jos" University of Galati, 2014)
      This paper describes the steps required to form a future electrical engineer. This guide informs what skills a future electrical engineer and what studies need to follow to meet the needs of an employer. This paper explains ...

    • Energetic Macroscopic Representation Applied to an Electrical Urban Transport System 

      Popa, Ioan Şerban; Popescu, Mihai Octavian; Popescu, Claudia ("Dunarea de Jos" University of Galati, 2002)
      An energetic description of the electric transport urban system ASTRAIK 415T is proposed according to a specific formalism. This is used to simulate the trolleybus system, equipped with a chopper and a direct current ...

    • Energetic Optimal Control of Adjustable Drive Systems 

      Roşu, Emil; Găiceanu, Marian; Bivol, Ion; Călueanu, Dumitru ("Dunareade Jos" University of Galati, 2002)
      In the paper is developed a new control strategy for the adjustable speed drives. The strategy consists in the energetic optimal control of the dynamic regimes as starting, stopping and reversing. The main developed ...

    • Estimation of Steel Solidified Layer Thickness, for Continuous Casting Control Purposes 

      Munteanu, Mihai; Ceangă, Emil (2008)
      An important goal in continuous casting automation process rest in establishing a proper casting speed being able to assure a compromise between machine productivity and solidified skin cracking protection on the mould ...

    • Evaluation of two Algorithms for Change Detection Based on Vibration Signals Processing 

      Aiordăchioaie, Dorel (Universitatea "Dunărea de Jos" din Galați, 2017)
      Change detection and diagnosis are important activities and research directions, in the field of system engineering and conditional maintenance of the equipment and industrial processes. The processed signals are coming ...

    • Experimental Results of Bridgeless PFC Boost Converter 

      Gopinath, M.; Ramareddy, S. ("Dunarea de Jos" University of Galati, 2010)
      This paper deals with the simulation and implementation of a bridgeless PFC boost converter. The Bridgeless PFC Boost Converter Circuit is analyzed, simulated and implemented. The circuit has advantages like reduced ...

    • Experiments in Distributed Control of Autonomous Mobile Robots 

      Vasiliu, Grigore; Suşnea, Ioan ("Dunarea de Jos" University of Galati, 2012)
      Distributed control is known to produce simple and cost effective solutions for many control applications. This is particularily interesting for controlling autonomous mobile robots, where the designer faces severe constraints ...

    • Fast Acting Robust Controller for Pitch Control System 

      Khuntia, P.S.; Mitra, Debja ("Dunarea de Jos' University of Galati, 2008)
      In this paper a classical feedback controller has been designed to furnish fast acting characteristics in the face of parametric perturbation using two parameters, Generalized Time Constant and Characteristic Ratios. The ...

    • Fea Based Axial Flux Permanent Magnet Linear Oscillating Motor 

      Thangavel, Govindaraj ("Dunarea de Jos" University of Galati, 2010)
      In this paper the development, finite element analysis(FEA) and electronic control of an axial flux permanent magnet linear oscillating motor (PMLOM) suitable for short strokes is described. The forces for aluminium mover ...

    • Feedback Linearization Control of Wind Power Systems 

      Cutululis, Nicolaos Antonio ("Dunarea de Jos" University of Galati, 2004)
      This paper focuses on the development of a feedback linearization control for a variable speed fixed pitch wind turbine driving a permanent magnet synchronous generator. The power system is considered to operate on an ...

    • Finding Exception for Association Rules Via SQL Queries 

      Dumitru, Luminiţa ("Dunarea de Jos" University Galati, 2000)
      Finding association rules is mainly based on generating larger and larger frequent set candidates, starting from frequent attributes in the database. The frequent sets can be organised as a part of a lattice of concepts ...

    • Flexible Joints Robotic Manipulator Control by Adaptive Gain Smooth Sliding Observer-Controller 

      Filipescu, A.; Dugard, L.; Dion, J. M. ("Dunarea de Jos" University of Galati, 2003)
      An adaptive gain sliding observer for uncertain parameter nonlinear systems together with an adaptive gain sliding controller is proposed in this paper. It considered nonlinear, SISO affine systems, with uncertainties ...

    • Force Prediction in Cold Rolling Mills by Polynomial Methods 

      Roman, Nicu; Aiordăchioaie, Dorel; Ceangă, Emil; Bivol, Ion ("Dunarea de Jos" University of Galati, 2007)
      A method for steel and aluminium strip thickness control is provided including a new technique for predictive rolling force estimation method by statistic model based on polynomial methods.

    • Frequency Content Oriented Modification of Quantization Matrix in DCT-Based Compression 

      Tarniceriu, Daniela; Munteanu, Valeriu; Beldianu, Florin ("Dunarea de Jos" University of Galati, 2006)
      In order to improve the compression rate for comparable values of error metrics, we propose a method to modify the standard quantization matrix used in JPEG, according to image frequency content. Unlike the method which ...

    • A Fuzzy Approach of the Optimal Analysis Based of Failure States in Manufacturing Systems 

      Minca, Eugenia ("Dunarea de Jos" University of Galati, 2012)
      This article proposes an algorithm for prognosis in optimal analysis of manufacturing systems. Uncertain knowledge of such task requires for specific reasoning and adaptive model base of fuzzy logic analyzes. The proposed ...

    • Fuzzy Control of the Activated Sludge Wastewater Treatment Process Treated as Multivariable Process 

      Chiroşcă, Alina; Dumitrascu, George; Luca, Laurentiu; Caraman, Sergiu (Galati University Press, 2011-07)

    • Fuzzy Queries in Romanian Language. An Intelligent Interface 

      Tudorie, Cornelia; Neacşu, Cristian; Manolache, Ionel ("Dunarea de Jos" University of Galati, 2005)
      The most accessible interfaces querying databases must be so intelligent, able to understand natural language expressions and including vague terms in selection criteria. The paper proposes a general architecture for a ...

    • Fuzzy Queries in Romanian Language. An Intelligent Interface 

      Tudorie, Cornelia; Neacşu, Cristian; Manolache, Ionel (The Annals of "Dunarea de Jos" University of Galati, 2005)
      The most accessible interfaces querying databases must be so intelligent, able to understand natural language expressions and including vague terms in selection criteria. The paper proposes a general architecture for a ...

    • 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 ...