Căutare Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați după Titlu
Afișează articolele 743-762 of 1845
-
Increase the Steels Purity cast in Vacuum
(Universitatea "Dunărea de Jos" din Galaţi, 2012)The need to develop products with special characteristics and high mechanical properties led to the introduction of plastic deformation of semifinished materials. Special purpose products are produced from slabs, ... -
Indirect Control of a Low Power Single-Phase Active Power Filter
("Dunarea de Jos" University of Galati, 2010)This paper deals with a low power, single phase active filter used to compensate nonlinear loads. The filter uses the indirect control method and it is based on a particular connection between filter, polluting load and ... -
Indirect Control of a Single-Phase Active Power Filter
("Dunarea de Jos" University of Galati, 2006)The control of shunt active power filters using PWM inverters consists in generating a reference by separating, using different methods, the harmonics to be eliminated. The methods used are time-consuming and need dedicated ... -
Industrial Electron-Beam Equipment on Base of Noble and Non-Ferrous Metals
(Universitatea "Dunărea de Jos" din Galați, 2006)Method of obtaining of metals and alloys by melting – is basic. By this way make in practice the majority of metals, alloys and ligatures. The essence of a method is, that in special melting device (furnace) to melt metal ... -
Industrial Gear Oils from Renegerable Feed Stocks
(Universitatea ”Dunărea de Jos” din Galați, 2008)The aim of this research study is to obtain industrial gear oils. The formulation of this type of lubricant is based on vegetable oils or mixtures of vegetable oils with more stable base oils and appropriate additives. The ... -
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 ... -
Influence of structure Mass on the Behavior of Seismic Energy Hidraulic Dissipation Devices
(Universitatea "Dunărea de Jos" din Galați, 2012)Since many solutions exist today in the field of structure isolation against the destructive action of earthquakes, the authors present a simple solution that can provide complete protection against shock and vibration ... -
Influence of Alloying Elements on Corrosion Resistance of Some Iron - based Sintered P/M Alloys
(Universitatea "Dunărea de Jos" din Galați, 2015)In this paper is described the influence of alloying elements on corrosion behavior of sintered iron parts. The compacts were sintered at 1,150 °C and the sintering time was 60 minutes. After microstructural studies, the ... -
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 ... -
The Influence of Company's Capital Cost on Investment Decision
(“Dunarea de Jos” University of Galati, 2014)This paper is aimed at highlighting the importance of the cost of capital as a discount rate of investment in making an investment decision in the ROMNAV Brăila company. This study carefully puts forward the existence ... -
Influence of Cooling Oil on the Surface Quality of the Roller Strip
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The excess of emulsion used in the lamination process leads to the formation of drops which in the annealing process forms spots of burned emulsion. It was also shown to cause formation areas with high carbon concentrations ... -
The Influence of Corporate Governance and Ownership Concentration on Company Performance - Evidence from Bucharest Stock Exchange
(“Dunarea de Jos” University of Galati, 2013)The main purpose of this study was to explore whether the current corporate governance mechanisms have an impact on the company’s performance in Romania. The importance of this study is given by the following reasons. ... -
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 ... -
Influence of Geometric Parameters on Forces in Single Point Incremental Forming Process for Various Parts
(Universitatea "Dunărea de Jos" din Galați, 2011)The purpose of this study was to investigate the influence of geometrical parameters on the forces in two directions in a single point incremental forming process. For this purpose, the authors have chosen three types ... -
Influence of Geometrical Parameters on Rigidity of the Worm-Gearing Tooth
(Universitatea "Dunărea de Jos" din Galați, 2002)By means of an original numerical method, the authors study the influence of the parameters of the worm-gearing tooth (diametral quotient, radius of profile curvature, profile angle of the worm, number of gear teeth) on ... -
Influence of Grease Grade and Working Regime on the Structural Modifications of the Superficial Layers on Roller-Roller Tribosystems
(Universitatea "Dunărea de Jos" din Galaţi, 2007)A X-ray diffractometric method is used for analysing the distributions of the 1-st and 2-nd tension state and dislocation density in the superficial layers, after tests in different working and lubricating conditions, the ... -
Influence of Heat Treatment Technology on the Structure and Properties of Thick Sheet Steel ASTM14 Degree F
(Universitatea "Dunărea de Jos" din Galați, 2015)In this paper, based on the researches carried out a heat treatment technology can be determined which further lead to an optimum set of mechanical properties according to the technical conditions: A. Annealing (austenite ... -
Influence of High Performance Voltage Converters Supply Upon the Induction Motors Behaviour
("Dunarea de Jos" University of Galati, 2002)The induction motors supply by converters leads to a distorted regime accompanied by some parasite torques and some supplementary losses. These aspects are emphasized further on because their quantitative determinations ... -
Influence of Micro Glass Beads Added in PBT Matrix on the Mechanical Properties of Composites
(Universitatea "Dunărea de Jos" din Galaţi, 2012)This paper presents the influence of adding materials (micros glass spheres) in a matrix of PBT on several mechanical properties: elasticity modulus, stress at break , elongation at break, energy at break. The mechanical ... -
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 ...
