Căutare după Autor "Rîpă, Minodora"

Afișează articolele 1-13 of 13

    • Air Quality Monitoring in Galați. Case Study 

      Balint, Lucica; Rîpă, Minodora; Balint, Simion Ioan; Niță, Petre Stelian; Năstase, Gina (Universitatea "Dunărea de Jos" din Galați, 2006)
      This paper presents information referring to the variation of aerosols concentration in a central area in Galati. For a period of time of november2005 to november 2006, there have been made correlations between aerosols ...

    • Aspects Regarding the Atmosphere Pollution Monitoring 

      Balint, Lucica; Rîpă, Minodora; Nită, Petre; Radu, Tamara; Lebădă, Simona (Universitatea "Dunarea de Jos" din Galați, 2005)
      This paper presents information regarding the variation of aerosols concentration in a central area in Galati city. For a period of time of 2 years and 5 months, there have been done correlations between aerosols ...

    • A Comparation of Standardized Methods for Lubrication Failure Determination 

      Spânu, Constantin; Rîpă, Minodora; Ştefănescu, Ioan; Deleanu, Lorena (Universitatea "Dunărea de Jos" din Galaţi, 2007)
      Lubricants are used to prevent wear between moving parts and to resist to high pressure between them. There are standardized testing methods that determinate the wear of the contact pair pieces and the pressure that leads ...

    • Diagniosis of the Technical State of Complex Mechanical Systems 

      Crudu, Ion; Spânu, Constantin; Rîpă, Minodora; Teletin, Claudiu (Universitatea "Dunărea de Jos" din Galaţi, 2007)
      The paper presents a model for prediction and diagnosis of technical state of complex mechanical systems based on the systems theory. In diagnosis studies is used a model that has only input and output parameters as a ...

    • 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 ...

    • Flammability Tests on Hot Surfaces for Industrial Fluids 

      Deleanu, Lorena; Buzoianu, Dragoş; Rîpă, Minodora; Crăciunoiu, Ştefan; Drug, Adina (Universitatea "Dunărea de Jos" din Galaţi, 2007)
      Industrial fluids have to be evaluated not only for their performances as load capacity, durability, but also for their potential risk including ignition. Based on a solid documentation the authors point out the significance ...

    • 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 ...

    • Overview on the Implementation of Tree Test Methods for Conformity Assessment of Fluids 

      Rîpă, Minodora; Deleanu, Lorena; Chiculiță, Simona (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.

    • Profilometric Analysis of Worn Surface of Bronze, Iron and Iron Composite Samples, by Pin-on -Disk Method 

      Iliuță, Virgil; Ciupagea (Coteț), Gabriel Andrei; Rîpă, Minodora (Universitatea "Dunărea de Jos" din Galați, 2013)
      In this study are presented the results of profilometric analysis for the wear of bronze materials, cast iron and composite materials. These materials were tested under dry wear conditions, using "pin-on-disk" method on ...

    • 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 ...

    • Structure Effects Over Behavior of Graphite Gray Iron in Running 

      Preda, Adriana; Rîpă, Minodora; Miculescu, Florin; Dulea, Gabriela (Universitatea "Dunărea de Jos" din Galați, 2008)
      The work aims at emphasizing the structure changes of graphite gray iron, as a result of make-casting conditions and their effects over behavior in running of several cast items. Researches consisted of complex ...

    • 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 ...

    • Tribological Testing Programs for Uhmwpe Matrix Composites 

      Chiculiță, Simona; Rîpă, Minodora; Andrei, Gabriel (Universitatea ”Dunărea de Jos” din Galați, 2009)
      This paper aims to review the knowledge on materials and tribology of the ultra high molecular weight polyethylene (UHMWPE) composites. The various mechanisms proposed for the wear behaviour of UHMWPE are closely associated ...