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 221-240 of 1845
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Diminutivele lexicalizate în limba română
(Universitatea "Dunărea de Jos" din Galați, 2005-01)Lexicalizarea ca proces prin care se dă o anumită formă unui anumit conţinut într-o limbă, poate fi exemlificată în limba română şi prin pierderea legăturii dintre lexemul bază şi diminutive. Lucrarea ilustrează o astfel ... -
Tax evasion and money laundering - ways of evading the payment of the state budget liabilities
(Editura Europlus Galati, 2005-01-18)Tax evasion is an antisocial phenomenon to be fight against with all forces. By reducing collection of taxes, this phenomenon abridges society of significant public resources which could be used for achieving some social ... -
Overview on the Implementation of Tree Test Methods for Conformity Assessment of Fluids
(Universitatea ”Dunărea de Jos” din Galați, 2006)This paper presents three test methods for conformity assessment of technical fluids, all included in international, European and Romanian standards and their relevance for work security and health. -
Influence of Steel Modification Allied with 4-7%Si on Macrostructure
(Universitatea "Dunărea de Jos" din Galați, 2006)The goal of this paper is to test the effect of odification process of liquid steel with 4-7% silicon content, in the course of pouring out from steel-smelting furnace into ladlet, on macrostructure. The research settled ... -
Experimental Results at Modelling of the Flow and Deformation Fields at the Profiles Rolling
(Universitatea "Dunărea de Jos" din Galați, 2006)This paper presents the results for modeling of the rolling process based at the deformable continuous medium mechanics, the theory of field lines. The rolling of the profiles and plates may be evaluated as the plane ... -
Wear and Irreversible Entropy Generation in Dry Sliding
(Universitatea "Dunărea de Jos" din Galaţi, 2006)This paper examines the relationship between wear and the generation of entropy within the mechanically affected zone, MAZ, of a sliding material. It is postulated that wear is related to irreversible entropy generation ... -
Analysis of Wear Cutting Tools by Complex Powere-xponential Function for Finishing Turning of the Hardened Steel 20CRMO5 by Mixed Ceramic Tools
(Universitatea ”Dunărea de Jos” din Galați, 2006)In this paper it is analised the dependence regression between flank wear tools or wear out of belt width on the back surface VB and cutting time t in the form of complex power-exponential regression equation for turning ... -
The External Cylindrical Surface Rolling by Method of Cold Deformation
(Universitatea ”Dunărea de Jos” din Galați, 2006)This report, by the shown methodology, tries to contribute to the effective solution of tasks in the field of studying and designing the processes and states. It also points out a possible way of achieving high techno-economical ... -
Upon Friction on a Ball Bearing - Outer Raceway Contact - I. Uniform Loading of the Balls
(Universitatea ”Dunărea de Jos” din Galați, 2006)The paper advances an analytical model to evaluate the effect of micro-slip on the friction losses at the interface of a normally loaded rolling contact. The model validation was done by comparing the theoretical results ... -
Criterion of Transition in the Fretting Phenomenon Based on the Variabile Coefficient of Friction
(Universitatea ”Dunărea de Jos” din Galați, 2006)Fretting is now fully identified as a small amplitude oscillatory motion which induces a harmonic tangential force between two surfaces in contact. It is related to three main processes, i.e. fretting-wear, fretting-fatigue ... -
Hysteresis and Mechanical Fatigue
(Universitatea ”Dunărea de Jos” din Galați, 2006)The material dumping, known also as inner friction or, simply hysteresis, is considered to be related to energy dissipation in the volume of a macro-continuous medium. This phenomenon takes place when a more or less ... -
Some Special Features of the Elastic-Plastic Deformation of the Composite Electrolytic Platings
(Universitatea ”Dunărea de Jos” din Galați, 2006)One brings the elastic particularises and figures of the deformation of composition of the iron-nickel and iron hedging’s to the micropression. This information makes it possible to explain the mechanism elastic and plastic ... -
Tribological Behaviour of CO-CR-MO and Uhmwpe the Components of Intervertebral Disc Prosthesis
(Universitatea ”Dunărea de Jos” din Galați, 2006)The Intervertebral Disc Prostheses consist of a modular system and his function is based on low intervertebral friction. As a result of friction forces acting to the spine structures, the intervetebral disc prostheses can ... -
Experimental Studies Concerning Damage of Two Lubricant Greases in Severe Working Conditions
(Universitatea ”Dunărea de Jos” din Galați, 2006)In this paper certain results regarding behavior of two greases used in lubrication of rolling and rolling-sliding tribosystems are presented. For this aim, a specialised stand has been used. The experimental tests were ... -
Researches of Distribution of Loading on Coils of Running Pair of the Latch
(Universitatea ”Dunărea de Jos” din Galați, 2006)This paper gives the calculation procedure of pressure distribution on coils of running pair of latch at various loading schemes. Recommendations are provided for the choice of loading schemes of running pair, which ensure ... -
Etablissement de L’angle Maximum de Pivotement pour un Rouleau Cylindrique d’un Roulement a Quatre Epaulements de Guidage
(Universitatea ”Dunărea de Jos” din Galați, 2006)In cylindrical roller bearings subjected to complex radial and axial load, there is always a skew motion of rollers. This parasite motion increases the total friction loss within the bearings, restricting their running ... -
A New Trend for Preparating Polymeric Calcium Sulfonates for Metal Working Fluids by Phase Transfer Catalysis. Part I.
(Universitatea ”Dunărea de Jos” din Galați, 2006)Calcium sulfonates derived from sulfonation of heavy alkylate and aromatic extract were synthesized and reacted with formalin to produce anionic polymer in the presence of phase transfer catalysts (PTC). These catalysis ... -
A Preliminary Study on the Dynamics of Triboemission, Work Function and Surface Charging of Ceramics
(Universitatea ”Dunărea de Jos” din Galați, 2006)This paper discusses the tribological dynamics of electron triboemission and after-contact emission during scratching of ceramics. The origin of such triboemission is still unclear, but the author and colleagues consistently ... -
Prediction of Wear of Acetabulum Inserts Due to Multiple Human Routine Activities
(Universitatea ”Dunărea de Jos” din Galați, 2006)It is difficult to predict the quantitative and qualitative aspects of the wear of the components that allow relative motion due to several factors. First, the prosthetic parts in contact experience a wide spectrum of ... -
Ultrasound Action on Strength Properties of Polycrystalline Metals
(Universitatea ”Dunărea de Jos” din Galați, 2006)The mechanical properties of pure aluminum were investigated by tensile test on the sample with average grain size between 60 and 1000 µ m. The stress strain functions given by the models are fitted to the measured points. ...
