Căutare Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați după Titlu

Afișează articolele 1520-1539 of 1845

    • Study and Researche Regarding Binaring Sistem with TIOBIS - β – NAFTOL 

      Mitoșeriu, Olga; Constantinescu, Stela; Orac, Lucica (Universitatea "Dunărea de Jos" din Galați, 2007)
      This paper presents the results for contribution of determining the manganese from waters and steel. Manganese, due to its properties, cannot be found but in acid waters and usually associated with iron. In small amounts, ...

    • Study for Evaluation and Optimization of Mineral Composition and Structure of Iron Ore Granulation in Sintering Process 

      Mogoş, Paul Petruş; Constantin, Nicolae; Ittu, Sînziana; Anca, Denisa-Elena; Harcea, Lavinia-Marilena (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      The characterization of iron ore particles is of vital importance for the study of mineral composition. The specific surface area of iron ore particles can be measured by laser diffraction, and mathematical models (based ...

    • A Study of Body Posture on Human Comfort Under the Influence of Whole-Body Vibrations for the Rail Passengers 

      Picu, Ana (Universitatea "Dunărea de Jos" din Galați, 2010)
      When traveling by train, passengers are exposed to vibration. A well designed seat will attenuate the vibration path to the person in the frequency region where it is the most perceptible, between 3 and 10 Hz. This paper ...

    • A study of Electric Properties of Fiber Fabric Based Filled Epoxy Composites 

      Andrei, Gabriel; Cîrciumaru, Adrian; Bîrsan, Iulian; Dima, Dumitru (Universitatea "Dunărea de Jos" din Galați, 2007)
      Electric and magnetic properties of laminate carbon fiber fabric based epoxy composites are investigated through experimental techniques. Various concentrations of powder fillers were used in order to change the basic ...

    • A Study of Electromagnetic properties of Fiber Fabric Based Filled Epoxy Composites 

      Cîrciumaru, Adrian; Bîrsan, Iulian; Andrei, Gabriel; Dima, Dumitru (Universitatea "Dunărea de Jos" din Galați, 2007)
      Electric and magnetic properties of laminate carbon fiber fabric based epoxy composites are investigated through experimental techniques. Various concentrations of powder fillers were used in order to change the basic ...

    • A Study of Hand-Arm Vibrations for the Foresters Workers 

      Picu, Mihaela (Universitatea "Dunărea de Jos" din Galați, 2012)
      The foresters workers are especially exposed to hand-arm transmitted vibrations. These vibrations can cause the complex of vascular, neurological and musculoskeletal disorders, collectively named hand-arm vibration ...

    • Study of Heat Treatment Influence on Aluminum-Based Alloy ATN-Si10Cu4 

      Vasilescu, Elisabeta; Boiciuc, Simona (Universitatea "Dunărea de Jos" din Galați, 2007)
      This work presents the experimental results concerning the behavior on heat treatment of on aluminum based alloy. The laboratory level experiments achieved on samples of ATN-Si10Cu4 (4145 series) alloy illustrate the ...

    • A Study of Key Management for Encrypted Storage in Storage Area Network 

      Lu, Hai Xin (Universitas Galatiensis, 2009-01)
      As secure storage becomes more pervasive throughout the enterprise, the focus quickly moves from implementing encrypting storage devices to establishing effective and secure key management policies. Without the proper key ...

    • 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. ...

    • Study of Severe Plastic Deformation by Torsion Test 

      Gurău, Carmela; Gurău, Gheorghe; Cănănău, Nicolae (Universitatea "Dunărea de Jos" din Galaţi, 2008)
      High Torsion Pressure (HPT) is an advanced tool for inducing very significant grain refinement in a wide range of metals. In this research were studied parameters of severe plastic deformation using the torsion test. The ...

    • Study of the Inclusions from the Oriented Grains Silicon Steels and Their Influence on the Texture 

      Doniga, Ana; Vasilescu, Elisabeta (Universitatea "Dunărea de Jos" din Galați, 2006)
      The paper presents experimental results concerning the inhibitor phases generation by microalloying elements utilization. It was made experiments on three silicon steel charges. It was observed that the inhibitor phases ...

    • Study of the internal Resonance of a two-Degree-of-Freedom Non-Linear Dynamic System 

      Dragomirescu, Cristian; Craifăleanu, Andrei (Universitatea "Dunărea de Jos" din Galați, 2006)
      The paper analyses a two- degree- of- freedom dynamic system, by taking into account its non- linearity. The case of the internal resonance is studied and, by local analysis, Hopf bifurcations are emphasized. Periodic ...

    • Study of The Palette-Obstacle Impact for a Concrete Mixer 

      Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2013-05-01)
      In this paper the numerical simulation of the concrete mixer was developed in SimMechanics, a toolbox for Matlab environment. The virtual model for mixing equipment simulation has been computed to estimate the increase ...

    • Study of the RV52 Steel Plates Properties After Thermic Treatment 

      Vlad, Maria; Constantinescu, Stela (Universitatea "Dunărea de Jos" din Galați, 2009)
      The thermal treatment of RV52 steel plates determines high mechanical properties such as: strength, wear resistance and tenacity. The normalized plate samples were studied to determine the effect of the tension release ...

    • Study of the Sintering Process of Iron Powders Coated with Nano-Hydrocarbon and the Resulting Microstructure at Temperatures up to 1200°C 

      Georgiev, Jordan; Anestiev, Lubomir; Bendereva, Ekaterina; Lukarski, Yavor; Marcela, Selecka; Gavrilova, Rositsa (Universitatea "Dunărea de Jos" din Galați, 2009)
      The objective of the research is development and study of a new ecologically friendly and technologically advanced method for introduction of carbon during sintering of low alloyed iron powders ASC 100.29. The method is ...

    • Study of the Thermodynamic Regime at the Continuous Casting of Steel 

      Ivănescu, Alexandru; Ivănescu, Lilica; Cireșica, Cocindau; Munteanu, Viorel (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper presents the evolution of the heat exchange coefficient along the path of the continuous casting unit, as a function of the cooling water flow rate and the path length. The optimization of this thermodynamic ...

    • Study of the Thermomechanical Treatment Post-Deformation Maintaining Time Influence on the Mechanical Characteristics of the Microalloyed Steels 

      Vasilescu, Elisabeta; Neacșu, Marian (Universitatea "Dunărea de Jos" din Galați, 2007)
      This paper-work shows the results of the laboratory researches of the postdeformation maintaining time influence on the physical-mechanical characteristics of the flat microalloyed steels, at high temperature thermomechanical ...

    • Study of Tribocorrosion Processes by Electrochemical Techniques 

      Benea, Lidia; Drăgan, Viorel (Universitatea "Dunărea de Jos" din Galați, 2007)
      Tribocorrosion is defined as the chemical-electrochemical-mechanical process leading to a degradation of materials in sliding, rolling or erosion contacts immersed in a corrosive environment. That degradation results ...

    • Study of Wear Evolution for a Hydraulic Oil Using a Four Ball Tester 

      Spânu, Constantin; Rîpă, Minodora; Ciortan, Sorin (Universitatea ”Dunărea de Jos” din Galați, 2008)
      Time is crucial for the wear of materials. Time of an experiment must be long enough to obtain an observable wear but no so long to make the experiments expensive. For determining anti-wear properties of the hydraulic oils ...

    • Study of Zro2/Co-Deposition with Cobalt from Chloride Electrolyte 

      Benea, Lidia; Sorcaru, Florentina Simona (Universitatea "Dunărea de Jos" din Galați, 2009)
      The metal-matrix composites are materials in which the properties of a metallic host material are modified with addition of a second phase (ceramics) by electrodeposition process. The second phase can be hard oxides or ...