Căutare Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați după Data publicării
Afișează articolele 81-100 of 1845
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Building Similarity Maps of the Environment Using Sonar Information for the Navigation of Mobile Robots
("Dunarea de Jos" University of Galati, 2003)The objective of the work is to present a representation called similarity map based on some results in the evaluation of the SONAR system of a mobile robot. As environment a corner of our lab it is considered. Based on ... -
Vague Criteria Relational Database Queries
("Dunarea de Jos" University of Galati, 2003)The most accessible interfaces querying relational database should allow vague terms included in selection criteria. The gradual property stands for the simplest vague selection criterion, but more categories of vague ... -
The Parametric Identification of a Stationary Process
("Dunarea de Jos" University of Galati, 2003)In the problems of identification it is supposed that the process has at least one measurable input size and at least one measurable output size. The identification of a process has three stages: the obtaining of a ... -
Structure of Management Information in SNMP
(2003)In this article we present the Structure of Management Information from SNMP, for all three versions of SNMP, as well as the main differences between them. In the first part, two version of SNMP are presented: version ... -
Analysis of Functional Stability of the Triphased Asynchronous Generator Used in Conversion Systems of a Eolian Energy Into Electric Energy
("Dunarea de Jos" University of Galati, 2003)This paper presents a study of the influence of the main perturbation agent over the functional stability of the triphased asynchronous generator (for the two alternative: with coiled and short circuit rotor), used for ... -
On Estimation of the Orientation of Mobele Robots Ising Turning Fuctions and Sonar Information
("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 ... -
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 ... -
A Novel Parametric Model for the Human Respiratory System
("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 ... -
The Disturbance Model in Based Predictive Control
("Dunarea de Jos" Univesity of Galati, 2003)Model Based Predictive Control (MBPC) is a control methodology which uses a process model on-line in the control computer; this model is used for calculating output predictions and optimizing control actions. The importance ... -
A New Method of Gene Coding for Genetic Algorithm Designed for Parametric Optimization
("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 ... -
The Influence of the Ship's Steering Machine Over Yan and Roll Motions
("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 ... -
Automatic Processing of Radar Images for Electronic River Chart Generation in Ecdis Format
("Dunarea de Jos" University of Galati, 2003)Presenting the navigation environment in electronic format – ECDIS – triggers a major change of the classic method of cartography and raises up the need to approach a way of producing the charts in vector-like format. ... -
Flexible Joints Robotic Manipulator Control by Adaptive Gain Smooth Sliding Observer-Controller
("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 ... -
A Simple Load Power Estimator for Quasi-Direct AC-AC Converter System
("Dunarea de Jos" University of Galati, 2003)In this paper a simple load power estimator for the three-phase quasi-direct acac converter system is reported. Since the ac-ac converter control by means of pulsewidth modulation (PWM) is based on the power balance ... -
Hydraulic Plant with Energy Inertia Recuperator for Single Bucket Excavator
(Universitatea "Dunărea de Jos" din Galați, 2004)This paper analyse the driving solutions for hydraulic single bucket excavators, by the point of view of the energy consumptionon the technological working cycle. It is presented a solution of accumulation and re-circulate ... -
The Technological Resource of Digging and Transport Heavy Equipmens Used in Road Costructions
(Universitatea "Dunărea de Jos" din Galați, 2004)For it can be applied the efficiency analysis of a mecanical system , on the basis of probabilistic transform and correlation methods , in the case of industrial tractors which are working in aggregate with different ... -
Dynamic Analysis of Electro-Hydrodynamic Vibratory Equipment Using Virtual Prototyping Technique
(Universitatea "dunărea de Jos" din Galați, 2004)In this paper the authors analyse the functional behaviour of an electrohydrodynamic vibratory equipment, that could be used to vibro-driving the piles into the powerless soils, to drive a demolition hammer, a.s.o. ... -
Mathematical Model for Dynamic Behaviour Analysis of the Passive Isolation Systems
(Universitatea "Dunărea de Jos" din Galați, 2004)In this paper the authors present a set of mathematical models, usable to simulate and analyse the static and dynamic behaviour aspects, both for the passive anti-vibrational and anti-seismical systems, and for all ... -
Elastic System Designed for Base Insulation Against Dynamic Action of Vibrations and Seism
(Universitatea "Dunărea de Jos" din Galați, 2004)The approach regarding building base insulation puts into evidence the possibility to evaluate the antiseismic insulation degree in a direction defined using supporting elastic systems having various geometry, structure ... -
The Model of the Forging Hammers Like System with three Degree of Freedom
(Universitatea "Dunărea de Jos" din Galați, 2004)Forging hammers cause very high vibration levels, so vibration control is advisablein nearly all cases. For this reason, in present exist recearch with the object of to decrease and eliminate the shocks and vibration ...