Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați: Recent submissions
Afișează articolele 381-400 of 1845
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The behaviour of Acid Slag in the Tundish
(Universitatea "Dunărea de Galați, 2013)In the tundish, purification of steel is given by the use of an oxide powder on the steel surface. This powder perform several important functions, such as thermal insulation, protection against liquid steel surface ... -
Regeneration of Used Engine Lubrication Oil by Solvent Extraction. The Solvent Influence on Oil Ratio
(Universitatea "Dunărea de Jos" din Galați, 2013)Huge amounts of used lubricating oils from automotive sources are disposed of as a harmful waste into the environment. For this reason, means to recover and reuse these wastes need to be found. Problems arising from acid ... -
Fem Analysis of the Spur Gears Press-Rolling Proces
(Universitatea "Dunărea de Jos" din Galați, 2013)This paper presents the FEM (finite element method) analysis of the pressingrolling process, a new method for obtaining spur gears. Using symmetries, the 3D geometrical model was created for tools and for the initial ... -
Improvement of Properties of Heavy Plates by Secondary Steelmaking Technologies and Rolling Conditions
(Universitatea "Dunărea de Jos" din Galați, 2013)In order to obtain the mechanical and technological characteristics required for controlled rolled plates it is necessary to realize a very low content of sulphur by desulphurized mixtures using CaO-Al2O3-CaF2 and injection ... -
The Pre-Biblical Metallurgical ART on the Biblical Territory
(Universitatea "Dunărea de Jos" din Galați, 2013)The Old Testament describes in detail the metallurgical achievements, both in the period before the conquest and colonization of the promised land (mostly related to the manufacturing of the Tabernacle, in this sense, ... -
Anodization Treatment of Ti6A14V in electrolytes Containing HF
(Universitatea "Dunărea de Jos" din Galați, 2013)The Ti6Al4V alloy is already well-known likely material for implant applications. As well as pure titanium, Ti6Al4V alloy possess the ability to form spontaneously a thin passive oxide layer on the surface. This oxide ... -
Structure-Property Correlation of Composite Materials Based on Cu-Mo obtained by PVD Method
(Universitatea "Dunărea de Jos" din Galați, 2013)The paper describes reviews referring to determination of working parameters of the development processes of composites in copper matrix, by vapour-phase deposition method. The molybdenum was used as complementary phase. ... -
Experiments on Ballistic Tests for Improving Performance of a Neutralizing Gas Dynamics System
(Universitatea "Dunărea de Jos" din Galați, 2014)Neutralizing improvised explosive devices (handmade) by mechanical separation of the elements which are part of their composition can be achieved by the following methods: - generation of shock waves by means of the ... -
Funcţional Model of Savonius Type Vertical Axis Wind Turbine With Periodic Coupling of Adjacent Vertical Blades
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The field of HAWT (Horizontal Axis Wind Turbines) regarding the use of wind energy (WE) as a renewable energy source (RES) is well researched and the results are covering both the power range and efficiency. Deficiencies ... -
Analysis Frequencies of a Vibration-Type Structure Hall
(Universitatea "Dunărea de Jos" din Galaţi, 2014)Its main purpose was to identify natural vibration frequencies for a warehouse type structure in order to avoid resonance phenomena of the structure. The analysis is performed using the finite element analysis module of ... -
Policies for Economic Efficiency. Providing utilities in Public Administration
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The reality of the contemporary world has shown that there is an increasing interdependent power often turned into political pressure. Today, in Europe 25% of the imports of natural gas come from Russia. Therefore, ... -
Improving Slab Quality Through Control of Cooling Parameters in Continuous Casting Plants
(Universitatea "Dunărea de Jos" din Galaţi, 2014)Coupling the continuous casting installations with the rolling ones is a modern process that brings considerable economic benefits. During the continuous casting process of steel slabs, necessary technological conditions ... -
Superficial Hardening with Pulse Laser Applied to ASTM A537 HSLA Steel
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The surface hardening with YAG:Nd pulse laser is used to obtain a set of surfaces with different properties and it is based on the formation of a very fine martensite. The paper has been elaborated based on laboratory ... -
Microstructural Characteristics of Sintered Powder Metallurgy Alloys
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The purpose of this paper is to study the influence of processing parameters on the microstructural characteristics of sintered powder metallurgy alloys. The specimens were produced from atomised iron powders with different ... -
Study on Refractory Material Used Forthe Wear Laver of the Tundish
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The continuous casting of steel is a modern and efficient process for the production of semi-finished products required for the other components of steel industry. In order to improve the quality of continuous cast slebs ... -
Computer Vision System for Detection of Passenger Sleeping state for Advanced Driver Assistance Systems
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The goal of this research is to develop an in-vehicle computerized system able to warn the driver, to assess the passenger’s state of sleeping in order to avoid affecting the driver psychologically and induce drowsiness. ... -
Study on the Rheology of Corn Oil Subjected to Forced Oxidation
(Universitatea "Dunărea de Jos" din Galaţi, 2014)This paper reflects a study on the rheology of corn oil in unoxidized state, subjected to forced oxidation treatment. Using the Rheotest2 system, the variation of dynamic viscosity with temperature and shear rate, using ... -
Characterization of Archaeological Objects Coming from Moldovian Settlements in the XIV Century
(Universitatea "Dunărea de Jos" din Galaţi, 2014)This paper presents the characterization, from the materials science point of view, of an object found in an archaeological vestige of the 14th century. The object studied (an iron nail used in constructions) proves that ... -
Experiments on Ballistic Tests for Improving Performance of a Neutralizing Gas Dynamics System
(Universitatea 'Dunărea de Jos" din Galaţi, 2014)Neutralizing improvised explosive devices (handmade) by mechanical separation of the elements which are part of their composition can be achieved by the following methods: - generation of shock waves by means of the ... -
Evolutionary Perspectives on Energy Consumption of Raw materials to Ensure Energy Production in the EU-28
(Universitatea 'Dunărea de Jos" din Galaţi, 2014)A clear analysis of the electricity production and consumption sector in the EU 28 offers firstly the possibility of knowing the final energy consumption for each segment (industry, households, trade, services and ...
