Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați: Recent submissions

Afișează articolele 801-820 of 1845

    • Aspects Regarding the Vibrations of the Contacts of a compressed air Switch 

      Dragomirescu, Cristian; Craifăleanu, Andrei (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper studies the vibrations of the contacts of a compressed air switch, by considering two models. Time variation of the elongation is presented, as well as spectral representations determined by means of Fourier ...

    • Geometry Stage 3D Modeling of a Heat Station Pump 

      Goanță, Adrian Mihai; Axinti, Adrian-Sorin (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper presents the stages of the 3D modelling of a circulation pump in a domestic low-power heat station. The possibilities of modifying the geometry by changing the numerical size of the geometric parameters are ...

    • The Idenfication (In Simulink) of an Elastic 

      Bălan, George C.; Ioniță, Bogdan (Universitatea "Dunărea de Jos" din Galați, 2007)
      In this paper is realized the identification of an elastic system with one degree of freedom, for which we experimentally pick up (in SIMULINK) the resonance curve. The system parameters (m, c, k) are determined using ...

    • Dextrous Hand-Grasping Preshaping 

      Starețu, Ionel (Universitatea "Dunărea de Jos" din Galați, 2007)
      The research conducted in human grasping have emphasized three main phases: the visual location of the target, when the object is analyzed an recognized, the reaching phase of grasping, when the hand preshapes in order ...

    • Study of Noise Produced by Elevators Inside Buildings 

      Picu, Mihaela; Picu, Ana Alexandra (Universitatea "Dunărea de Jos" din Galați, 2007)
      This paper studies the way in which elevators movement produces work perturbing noises. The studies were made on two types of buildings: a modern building, with noiseless elevators and another one with old elevators. ...

    • 2009 : The Isurance challenges year 

      Popa, Elena (Universitatea "Dunărea de Jos" din Galaţi, 2009-01)
      The insurance market in Romania has followed a tremendous evolution in the last decade, increasing annually by about 30 percent. Romanian insurance market is dominated by auto insurance, with over 60% of all subscriptions ...

    • The Causes of lack of discernement : Opinions 

      Palade, Constantin (Universitatea "Dunărea de Jos" din Galaţi, 2009-01)

    • The Voluntary payment of the bill of exchange 

      Oprea, Răducan (Universitatea "Dunărea de Jos" din Galați, 2009-01)
      The bill of exchange is extinguished normally by paying it at the maturity day, mainly by the main debtor – the accepter of the bill of exchange or the issuer of the payment order. If the bill of exchange is not honoured ...

    • Knowledge and innovation : The Road to competitivity 

      Modiga, Georgeta (Universitatea "Dunărea de Jos" din Galați, 2009-01)
      The central idea around which this essay is built is that knowledge, as an appreciating asset, intellectual capital and investment in education is becoming a dominant reality in the new economics and knowledge-based society. ...

    • Moral and legal responsability 

      Mirică, Andreea Elena (Universitatea "Dunărea de Jos" din Galați, 2009-01)

    • On the Linear Elastic Deformations for plane curved Bems in their Plan Loded, Using the Finite Element Method 

      Dumitrache, Petru; Potîrniche, Aurora (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      The study want to make a comparison between tho calculus methods of the linear elastic deformations for plane curved beams in their plan loaded. The results obtained with the finite element analysis have some important ...

    • The Analysis of the Torsional Springs' Inertia Influence on the Resonance Characteristic of the elastical Mechanical Systems 

      Drăgan, Nicuşor (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      The study presents the phases and the final result of the physical and mathematical models' elaboration of elastic mechanical systems with one degree of freedom taking into consideration the distributed mass of the twist ...

    • Cost Optimazation at the Worm Cutter Splinting 

      Micu, Adrian; Simionescu, Cristian-Silviu; Daşchievici, Luiza (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      In order to get goods at the worm cutter splinting, an important method is to reduce the energetical charging and the cinematic unevennesses. It is explain that the costs are important to get a good price at the splinting ...

    • 3D Modelling a Spur Gearing with Solid Edge 

      Haraga, Georgeta (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      The software Solid Edge software is a useful 3D computer aided design (CAD) running under Windows. The commands and icons of Solid Edge software offer the possibility to design various solids. In this paper are presented ...

    • The Influence of Nonlinear Behavior of Viscous-Elastic Element on Equipment Foundation with Dynamical Apply Stresses 

      Leopa, Adrian (Universitatea "Dunărea de Jos" din Galaţi, 2006)
      This paper presents a dynamical analyze on the foundation of machine when are apply stresses such the beat (percussion) in nonlinear behavior of the viscous-elastic elements hypothesis. In this way can be evaluate (more ...

    • Viscosity of Amorphous Molecular Substances 

      Diaconescu, Emanuel; Zegrean, Vlad Flaviu; Onciul Miron, Oana (Universitatea ”Dunărea de Jos” din Galați, 2008)
      Because the great majority of flow units in a liquid behave instantaneously in a solid-like manner, rheological properties of molecular liquids subjected to high pressures may be measured by using corresponding molecular ...

    • Flammability Test Data in Risk Assessment 

      Deleanu, Lorena; Buzoianu, Dragoș; Crăciunoiu, Ștefan; Rîpă, Minodora; Spânu, Constantin (Universitatea ”Dunărea de Jos” din Galați, 2008)
      This paper reviews the most recent information on standards dealing with testing fire-resistance of hydraulic fluids in order to emphasis the importance of selecting hydraulic fluids including as basic criteria of reducing ...

    • Residual Stresses Effect on Fatigue Life of Rolling Contacts 

      Crețu, Spiridon; Benchea, Marcelin (Universitatea ”Dunărea de Jos” din Galați, 2008)
      The fatigue life tests carried out on two groups of ball bearings point out the positive influence of the compressive residual stresses induced by a previous loading in the elastic-plastic domain. The values of residual ...

    • Shear Stability as Oils’ Performance Indicator 

      Ciortan, Sorin; Rîpă, Minodora; Chiculiță, Simona; Spânu, Constantin (Universitatea ”Dunărea de Jos” din Galați, 2008)
      The paper presents a comparative analysis between the shear stability tests results and four ball tests results for some industrial oils. This correlation is used for establishing the way how the mechanical solicitations ...

    • Influence of Shear Stability on Oils Behaviour 

      Ciortan, Sorin; Rîpă, Minodora; Chiculiță, Simona (Universitatea ”Dunărea de Jos” din Galați, 2008)
      The paper presents a method to establish a link between the shear stability index and service behaviour of motor oils. A standardized method for shearing stability establishing is combined with appropriated curve fitting ...