Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați: Recent submissions
Afișează articolele 281-300 of 1845
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Nanostructured SiC-Ni Composite Coatings Obtained by Electrodeposition-a Tribocorrosion Study
(Universitatea "Dunărea de Jos" din Galați, 2005)The tribocorrosion properties of SiC (20nm) - Ni nanostructured coatings have been studied in pin on disc tribocorrosimeter connected with an electrochemical cell. The objectives of our study in principal is to fully ... -
Synthesis and Characterisation of Ag/SnO2/Clay Nanocomposites with Potential Application as Photocatalysts
(Universitatea "Dunărea de Jos" din Galați, 2012)This work reported a novel synthesis and characterization of Ag/SnO2/clay nanocomposites. The obtained materials were characterized using techniques such as X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy, ... -
Choosing and Using Rationally the Thermic Processed Steels
(Universitatea "Dunărea de Jos" din Galați, 2012)On a global scale one can notice a constant preoccupation for a rational choosing and using of the materials on the whole and, especially of the steels with the main objective the increase of the machines’, equipment’ ... -
Asphalt Pavement and Energy Collection
(Universitatea "Dunărea de Jos' din Galați, 2012)Romania, as an EU member state is bind to appraise and disseminate accurate and updated information about quantities, types, sources, production, transformation and consumption of energy in order to monitor the impact ... -
Mechanical properties and Abrasive Wear Behavior of Fluidized-bed Carburized Sintered Iron Alloys
(Universitatea "Dunărea de Jos" din Galați, 2012)This paper is a study of the influence of fluidized bed carburizing of sintered steels on the mechanical properties and the abrasive wear behavior for two different types of powder. Carburizing was carried out at a ... -
Research on the Production of Sintered Powder 316
(Universitatea "Dunărea de Jos" din Galați, 2012)The 316 austenitic stainless steel powders are typically used in applications requiring good corrosion resistance, mechanical strength at high and very low temperatures, good ductility, wear resistance, associated in ... -
Improvement of Casting Technology by Using of Exothermic Feeder Head and Simulation the Solidification Alloy
(Universitatea "Dunărea de Jos" din Galați, 2012)This paper presents a simulation program use of feeders exothermic and insulating plates. High quality casting is considerably improved by using solidification simulation flow and cast. -
Measurement and Analysis of Vibrations on a Cold Rolling Mill for Steel Strip
(Universitatea "Dunărea de Jos" din Galați, 2012)In this paper the authors made measurements and registration of vibration by using accelerometers posted on the top backup rolls. This is a new way for predict the damage in the rolling mill equipment and the precision ... -
Method of Deternining the Main Features of Magnetic Ferromagnetic Materials
(Universitatea "Dunărea de Jos" din Galați, 2012)The purpose of this paper is to present a method for determining the main magnetic features such as magnetic induction B, magnetization M, the coercive magnetic field Hc, permeability μ, using hysteresis cycle chart. The ... -
An Isothermal Model for Evaluating Stress and Strain in the Polymeric Block of the Block-on-Ring System
(Universitatea "Dunărea de Jos" din Galați, 2012)This paper presents the results of simulating an isothermal frictional contact between a polymeric block and a steel ring. The model takes into account the elasto-plastic behavior of the polymeric materials and the ... -
Behavior of Refractories in Interaction with Metallurgical Slag
(Universitatea "Dunărea de Jos" din Galați, 2012)The aim of this paper is to present the studies concerning behavior of the refractory to metallurgical slag corrosion. The corrosion resistance at high temperatures using the static method on samples containing chamotte ... -
Thermal Decomposition of Hafnium Ethoxide-Mollecular Precursor for Hafnia Dielectric Thin Films
(Universitatea "Dunărea de Jos" din Galați, 2012)The HfO2 thin-film is a very promising gate dielectric material for last generation transistors. The paper presents the thermal decomposition of hafnium ethoxide used as molecular precursor for obtaining hafnia thin ... -
Increase of Converter Life by Own Slag Coating
(Universitatea "Dunărea de Jos" din Galați, 2012)This paper presents a method for the improvement of the lining life of the BOF converter by slag coating, under nitrogen pressure. Own slag coating of converter lining is put in practice after steel tapping. Dolomite ... -
Comparison of the Efficiency of Three Types of Solar Collectors
(Universitatea "Dunărea de Jos" din Galați, 2012)Solar energy is one of the most abundant resources energy available in the world. Solar collectors have evolved in the last decades, but still they haven’t reached very high efficiencies. The collector efficiency is ... -
Evaluation of the Sonic System Efficiency for Raw Water Treatment
(Universitatea "Dunărea de Jos' din Galaţi, 2012)Water pollution is defined as the change in the water composition that is harmful to human health, unsuitable for economic use or reactive and that can cause damage to the aquatic flora and fauna. In the appreciation of ... -
The Consequence of Heavy Metals Impact on Primary Teeth
(Universitatea "Dunărea de Jos" din Galaţi, 2012)Since the metals deposited in the teeth during formation and mineralization processes are to a large extent retained, human teeth receive a considerable attention as indicators of heavy metal exposure. The objective of ... -
Energetic and Exergetic Efficiencies of Biomass Gasification Processes
(Universitatea "Dunărea de Jos" din Galaţi, 2012)A promising way to use biomass for the production of heat, electricity and other biofuels is through biomass gasification. In the gasification process, the chemical energy of the solid fuel is converted into the chemical ... -
Influence of Niobium as Microalloying element in 3%Si Steel grade for Electrical Industry
(Universitatea "Dunărea de Jos" din Galaţi, 2012)The paper presents the results of the laboratory research on the chemical composition and crystallographic texture in 3% Si steels and their influence on the level of magnetic losses in the final sheet. The magnetic ... -
Evolution of Copper Microstructure Subjected to Equal Channel Angular Pressing
(Universitatea "Dunărea de Jos" din Galaţi, 2012)This paper aims to study bulk severe plastic deformation processes capable to produce ultrafine grain and also nanostructured 3D materials, interesting for processing in current industry. Samples of copper alloy were ... -
Nanocomposite Coatings Obtained by Electro-Co-Deposition of Inert Particles with Cobalt-a Review
(Universitatea "Dunărea de Jos" din Galaţi, 2012)The paper focuses on review investigations of electrodeposition processes of metallic coatings containing dispersed nanosized particles. The nanosized particles, suspended in the electrolyte by agitation and/or use of ...
