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 181-200 of 1845
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Zinc Layer Removal at the Steel Appliances Scraps
(Universitatea "Dunărea de Jos" din Galați, 2005)All appliances contain an important quantity of steel and iron. These can be further recycled at the end of product usefulness. A component of the appliances is the bodies. These are made from galvanized steel. A study ... -
The Influence of the Thermomagnetic Treatments on the Hardness Number of Steels and the Superficial Layers Nitrided Durability
(Univeritatea "Dunărea de Jos" din Galați, 2005)Two types of steels subjected to a nitriding thermo-chemical treatment after thermomagnetic treatments. The structural aspects into superficial layer of these steels are studied during friction process by using of an ... -
Aspects Regarding the Biocorrosion of the Paper Manufactured Machines
(Universitatea "Dunărea de Jos" din Galați, 2005)This paper presents the main microorganisms causing biocorrosion, the concentration, their effects and a series of measures for their reduction. The conclusion is that the sulpho-reducing bacterius are responsible for ... -
Behavior of 1% Cr Steels at Fluidized Bed Nitrocarburizing
(Universitatea "Dunărea de Jos" din Galați, 2005)Paper is based by nitrocarburizing experiments made on pilot installation. For experiments were used different samples of steel at different nitrocarburizing regimes. Influence factors were: temperature and ammonia ... -
Experimental Studies on Structure Profile of Cast Alumininum Alloys
(Universitatea "Dunărea de Jos" din Galați, 2005)This paper presents experimental studies regarding the behavior after heat treatment of two cast aluminum alloy. So, we selected a typical charge for studying the structure profile. The studies that we have done can ... -
Influence of Atmospheric Conditions on the Mechanical Properties of Pet Rubber Composites
(Universitatea "Dunărea de Jos" din Galați, 2005)The aim of paper is to study the influence of environmental open air conditions on the PET-rubber composites. Two set of samples (Type I, Type II) were obtained with the same composition, but the composites of Type I are ... -
Chemical and Structural Changes for Bimetallic Materials Obtained by the Welding Process
(Universitatea "Dunărea de Jos" din Galați, 2005)This paper presents the transformations which take place during the obtaining process of bimetallic materials. As a plating process was used the welding. The added material was a bronze with aluminum complex alloyed with ... -
Laser Surface Hardening of 51Crv4 Steel
(Universitatea "Dunărea de Jos" din Galați, 2005)The work presents the surface changes in microstructure and properties by quenching the 51CrV4 steel from liquid and solid phase, using a CO2 continue laser wave with 900W power. In order to determine the hardening ... -
The Properties of Hardened Lead
(Universitatea "Dunărea de Jos" din Galați, 2005)Lead hardened through oxide scattering is investigated as raw materials for the fabrication of the support gratings of lead accumulators in order to increase their life service. For the preparation of lead powder hardened ... -
Fuzzy Queries in Romanian Language. An Intelligent Interface
(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 ... -
The Influence of Electric Transformers' Specific Parameters Modification on Power Distributions and on Technological Appropriate Consumption (TAC) Within the Energetic System
(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 ... -
A Survey Text Clustering Techniques Used for Web Mining
("Dunarea de Jos" of Galati, 2005)This paper contains an overview of basic formulations and approaches to clustering. Then it presents two important clustering paradigms: a bottom-up agglomerative technique, which collects similar documents into larger and ... -
Fuzzy Queries in Romanian Language. An Intelligent Interface
("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 ... -
Classification Process in a Text Document Recommender System
("Dunarea de Jos" University of Galati, 2005)This paper presents the classification process in a recommender system used for textual documents taken especially from web. The system uses in the classification process a combination of content filters, event filters and ... -
The Distribution of the Electricfield and of the Current Density in Casa of Electrocorrosion Countermeasures Using the Sacrifice Anodes Technique
("Dunarea de Jos" University of Galati, 2005)An electric field oriented from sea water towards the ship, can develop an extraction work. The corrosion process was thus diminished, by a change in the ship’s hull mass, due to a continuous tore of the material from its ... -
Three Fuzzy Reasoning Models as a Decisionsuport AID, to Find an Electrical Energy Tariff
("Dunarea de Jos" University of Galati, 2005)This contribution is a laboratory-work developed as an example of approximate (fuzzy) reasoning for students, possible to be used as a decision – support to estimate an electrical energy (EE) price for consumers. The three ... -
Active Power Compensator of the Current Harmonics Based on the Instantaneous Power Theory
("Dunarea de Jos" University of Galati, 2005)The quality of the electrical current becomes a major concern. The proliferation of the power electronic converters, which are used extensively to control electrical apparatus in industrial and commercial applications (dc ... -
Development of a Simulink Toolbox for Friction Control Design and Compensation
("Dunarea de Jos" University of Galati, 2005)This paper focuses on the development of a MATLAB/Simulink® library for servo-systems with friction as a part of a new simulation platform dedicated to model, analysis and control design of friction. It is well known that ... -
Pedagogical Knowledge Model Based on Conceptual Graphs and Ontology
("Dunarea de Jos" University of Galati, 2005)Intelligent educational systems are knowledge-based systems (KBS) they can be developed by a generic knowledge-based system development methodology. In this paper, we present an ontology-based approach for formalizing ... -
Relative Aggregation Operator in Database Fuzzy Querying
("Dunarea de Jos" University of Galati, 2005)Fuzzy selection criteria querying relational databases include vague terms; they usually refer linguistic values form the attribute linguistic domains, defined as fuzzy sets. Generally, when a vague query is processed, the ...
