Căutare 1993 -2018 după Data publicării
Afișează articolele 481-500 of 552
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Research in industrial trials to Improve Through-Thickness Z35 Properties of Hot Rolled Heavy plates up to 60 MM Thickness for Structural Steels
(Universitatea "Dunărea de Jos" din Galați, 2016)The main purpose of this industrial experimental rolling, done in ArcelorMittal Galati in the Heavy Plate Mill is to check the correlation between mechanical properties and the microstructure of chemical compositions ... -
Research on Obtaining and Characterization of Polymeric Membranes for Wastewater Treatment
(Universitatea "Dunărea de Jos" din Galați, 2016)Some of the most common polymeric membranes are used in wastewater treatment. Over the years, these membranes have been studied from different points of view: their aim to improve the retention of impurities, membrane ... -
Electrochemical Corrosion of Stainless Steels in Commercially Available Soft Drinks
(Universitatea "Dunărea de Jos" din Galați, 2016)In recent years, there has been a developing trend towards the use of advanced materials in the dental replacement industry. Corrosion mechanisms of 316L Stainless Steel in electrolyte containing common household soft ... -
Industrial Research in Thicker Heavy Plates (70-80 MM) HSLA Steel Micro-Alloyed with Mo-NB-Ti Thermo-Mechanical Control Process in ArcelorMittal Galati
(Universitatea "Dunărea de Jos" din Galați, 2016)Thermomechanical rolling (TMR or TMCP) is a special rolling process resulting in an extremely high-strength, fine-grained substructure which simultaneously offers very good toughness and cold formability. TM products ... -
Corrosion Behavior of 1050 and 3003 Aluminum Alloys Used in Naval Industry
(Universitatea "Dunărea de Jos" din Galați, 2016)The most important requests for new materials used in marine aggressive corrosion environment are the corrosion resistance and the susceptibility to localized and pitting corrosion. The corrosion behavior of 1050 and ... -
Comparative Corrosion Behavior of Pure Copper and Brass in 3.5% NaCl Solution
(Universitatea "Dunărea de Jos" din Galați, 2016)Copper and brass are used in many economic sectors as electrical, construction, transport and others. From common household electrical wiring to boat propellers and from photovoltaic cells to saxophones, copper and its ... -
Design and Flow Modelling of Ballast Tank in-Line Ejector
(Universitatea "Dunărea de Jos" din Galați, 2016)The purpose of this paper is to present the stages of designing a water in-line ejector used for ballast tanks stripping operation. The design operation was performed using NX Siemens CAD and ANSYS 15 for computer fluid ... -
Treatment of Wastewater Resulting from the Mettallic Coatings Process
(Universitatea "Dunărea de Jos" din Galați, 2016)The technological cleaning processes of steel strip surfaces used in metal coatings require organic or inorganic chemicals with a high risk of toxicity. To avoid pollution, the water resulting from these processes must ... -
Influence of the Unconventional Treatment Applied to a Steel on the Corrosion Evolution
(Universitatea "Dunărea de Jos" din Galați, 2016)The study of an alloyed steel with Cr Mo with an important content of aluminum (0.9…1.2%), unconventionally treated in magnetic field, is attractive because of the durability which increases along with the improvement ... -
Physical-Mechanical and Technological Characteristics of Ti10Zr Alloy for Dental Applications
(Universitatea "Dunărea de Jos" din Galați, 2016)Progress reported over time in dentistry can be attributed largely to the dynamics of acquiring new materials. A biomaterial is considered ideal in the absence of any biomaterial-tissue interaction, which means a biomaterial ... -
The Different Practical Application of Niobium Carbide Coatings Elaborated by CVD Process
(Universitatea "Dunărea de Jos" din Galați, 2016)In this paper, the different application of niobium carbide coatings onto hard carbide substrate was investigated using scanning electron microscope (SEM), Xray diffractometer (XRD) and micro-hardness. The paper conducted ... -
Studies and Researches Regarding the Obtaining and Characterization of Composite Nickel Coatings-Ni/Al2O3, Ni/Kaolin Electrochemically Produced
(Universitatea "Dunărea de Jos" din Galați, 2016)This study presents the composite nickel coatings electrochemically obtained using as disperse phases Al2O3 particles and kaolin. There were used Watts electrolytes, with a pH = 4, current density of 4 A/dm2, a concentration ... -
The Influence of the Carbon Content on the Depth of the Carbonitrurat Layer in Fluidized Layer for 1C15, 1C25 and 1C45 Steels
(Universitatea "Dunărea de Jos' din Galați, 2016)This paper presents the experimental research of carbonitriding thermochemical processing in fluidized layer performed on some samples of carbon steel with different carbon contents, the fluidized layer being made up of ... -
Tribological Studies Regarding the Crude Rapeseed Oil Press
(Universitatea "Dunărea de Jos" din Galați, 2016)The aim of this paper is to present a tribology test conducted on crude rapeseed oil press. The experiments were carried out with four-ball machine. The oil was tested at speed of 1000 rot/min and loads of 140 N and 200 ... -
Aspects Regarding the Traceability in Temperature Measurements
(Universitatea "Dunărea de Jos" din Galați, 2016)The traceability of national standards to a reference measurement is essential to correctly translate the information about customer preferences described in international standards as a prerequisite which exists for the ... -
Influence of Some Technological Parametersof Fluidized Bed Carbonitriding on the Surface Hardness of Carbonitrided Parts from Low Allow Steels
(Universitatea "Dunărea de Jos" din Galați, 2016)The paper describes the experimental research of thermos-chemical treatment of carbonitriding performed on samples of different brands of low alloy steels. The technological parameters whose influence on the carbonitrided ... -
Reducing the Sludge Quantity Ptoduced from Used Water Purification - a Source of Profit
(Universitatea "Dunărea de Jos" din Galați, 2016)This paper has its origins in the analysis of a real situation met in the Water Purification Plant from Cluj-Napoca city. The produced dehydrated sludge is about 70 - 80 tonnes / 24 hours, with a density that allows for ... -
A Review on the Thermophysical Properties of Water-Based Nanofluids and their Hybrids
(Universitatea "Dunărea de Jos" din Galați, 2016)A nanofluid is a solid–liquid mixture which consists of nanoparticles and a base liquid. Nanoparticles are basically metal (Cu, Ni, Al, etc.), oxides (Al2O3, TiO2, CuO, SiO2, Fe2O3, Fe3O4, BaTiO3, etc.) and some other ... -
Effect of Heavy Metals on the Germination of Wheat Seeds : Enzymatic Assay
(2016)Stress caused by heavy metals is a major problem which affects agricultural productivity and, implicitly, human health. Natural flora presents differences of tolerance to heavy metals. Some plants grow well in a soil ... -
Energy Disequilibrium Effects on Heat Treatment Equipment
(Universitate "Dunărea de Jos" din Galați, 2016)The differences found between heat fluxes in different areas of the heat treatment equipment workspace, due to energy disequilibrium or due to improper positioning of loading, can cause non-uniform temperatures and heat ...