Căutare Annals of the University "Dunarea de Jos" of Galati. Fascicle III: Electrotechnics, Electronics, Automation Control and Informatics după Titlu
Afișează articolele 31-50 of 230
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Comments on Clock Models in Hybrid Automata and Hybrid Control Systems
("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 ... -
A Comparative Study Above Two Self-Tuning Controllers With Aplication To The Control Of Synchronous Generator Excitation System
("Dunarea de Jos" University of Galati, 2000)This paper presents two self-tuning control structures synthesized through the minimization of two criterion functions. It is described the computation methodology of the control laws, both being particularized for the ... -
Comparison Between ZVS and ZVS-ZCS Bidirectional DC-DC Converter Topologies
("Dunarea de Jos" University of Galati, 2010)In this paper exhaustive comparative analysis has been done between a conventional ZVS converter and the ZVS-ZCS bidirectional DC-DC converters. A novel model of a bidirectional converter and its topology is introduced. ... -
Comparison of Three Phase 4-Leg Shunt Active Power Filter Using DQ, Indirect and Maximum Control Method
("Dunarea de Jos" University of Galati, 2011)In this paper is presented a comparative analysis of three control methods for a thee-phase active power filter (APF) with four legs, aiming at the power quality indicators: THD, power factor, unbalance. -
Comparison on Sensorless Control of Synchronous Motors
(Dunareade Jos University of Galati, 2002)The paper compares two different methods for speed and position estimation in AC permanent magnet synchronous motors vector control applications. The first method implies two observer blocks — one for the speed, and the ... -
Computational experience in Solving Large Linear Matrix Equations for Automatic Control
("Dunarea de Jos" University of Galati, 2004)State-of-the-art, uni-processor linear matrix equation solvers for automatic control computations are investigated and compared for various problem sizes. Generalpurpose SLICOT solvers are the most efficient ones for ... -
Computer similation of Phase Shifted series Resonant DC to DC Converter
("Dunarea de Jos" University of Galati, 2010)This paper deals with digital simulation of phase shifted series resonant DC to DC converter using Matlab Simulink. The Simulink models for open loop and closed loop systems are developed and they are used for simulation ... -
Computing Negentropy Based Signatures for Texture Recognition
(2007)The proposed method aims to provide a new tool for texture recognition. For this purpose, a set of texture samples are decomposed by using the FastICA algorithm and characterized by a negentropy based signature. In order ... -
Conceptual framework for cloud based ubiquitous learning environment through M-Learning
("Dunarea de Jos" University of Galati, 2013)Cloud computing is a recent trend in storing and managing data over a network. Cloud computing entrusts remote services with a user's data, software and computation. Here, we propose a design where a ubiquitous learning ... -
Considerations on the Effect of Plastic Deformation Over the Magnetic Behavior of Soft Ferromagnetic alloy FE-3%SI NO
(2002)The paper synthetically presents the results obtained over the degradation of magnetic properties of soft ferromagnetic sheets Fe-3%Si NO required mechanically in plastic deformation area. Chronologically, the evolution ... -
Control of a Multivariable Web Winding System
("Dunarea de Jos" University of Galati, 2007)To guarantee a good productivity and a better quality of the industrial systems, it is necessary to know the evolution of its various parameters but also its operation mode. The main goal of this work is to carry out a ... -
Counting Minimum Cost Bounded Degree Subtrees in Graphs with Small 2-Vertex-Connected Components
("Dunarea de Jos" University of Galati, 2013)In this paper we present new algorithms for counting minimum cost bounded degree subtrees in connected graphs in which the 2-vertex-connected (biconnected) components have small sizes. The 2-vertex-connected components and ... -
Data Mining for Scientific Publications
("Dunarea de Jos" University of Galati, 2006)Searching scientific literature on the Web is a difficult task because of the large volume and the complex dynamics of the scientific literature and because of the complexity and narrow target of typical queries. The problem ... -
Dc Link Current Estimation in Wind-Double Feed Induction Genera Power Conditioning System
("Dunarea de Jos" University of Galati, 2010)In this paper the implementation of the DC link current estimator in power conditioning system of the variable speed wind turbine is shown. The wind turbine is connected to double feed induction generator (DFIG). The ... -
Decomposition Methods to Optimise the Structure and Parameters of Transfer line with Parallel and Sequential Machining
("Dunarea de Jos" University of Galati, 2003)The paper is devoted to a preliminary design problem of paced automatic transfer lines. At this design stage, the following decisions are to be made: the partitioning of the given set of operations into subsets performed ... -
Describing Function Method for PI-Fuzzy Controlled Systems Stability Analysis
("Dunarea de Jos" University of Galati, 2004)The paper proposes a global stability analysis method dedicated to fuzzy control systems containing Mamdani PI-fuzzy controllers with output integration to control SISO linear / linearized plants. The method is expressed ... -
Descriptive Mining for the QSAR Problem
("Dunarea de Jos" University of Galati, 2005)There are several approaches in trying to solve the Quantitative Structure-Activity (QSAR) problem. These approaches are based either on statistical methods or on predictive data mining using neural networks. Among the ... -
Design of a Fork Shaped Patch Antenna for Mimo Applications
(Universitatea "Dunarea de Jos" din Galați, 2017)A compact Fork shaped patch antenna for tri-band applications with good bandwidth and isolation characteristics is presented in this paper. The proposed antenna resonates at the frequencies of 13.6 GHz, 15.5 GHz and 18.6 ... -
Design of an Energy Effcient Multiplier Using Complementary Energy Path Adiabatic Logic
(Universitatea "Dunărea de Jos" din Galați, 2017)The paper presents a new adiabatic multiplier circuit based on Complementary Energy Path Adiabatic Logic (CEPAL). The proposed multiplier consumes lesser power when compared to the conventional CMOS multiplier. The ... -
Design of LCL Resonant Converter for Electrolyser
("Dunarea de Jos" University of Galati, 2010)An Electrolyser linked with a DC bus are analyzed and discussed in this paper. An electrolyser is a part of renewable energy system which generates hydrogen from water electrolysis. An LCL series parallel resonant converter ...
