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

Afișează articolele 1805-1824 of 1845

    • Upon Friction on a Ball Bearing - Outer Raceway Contact - I. Uniform Loading of the Balls 

      Irimescu, Luminița; Diaconescu, Emanuel; Berthier, Yves (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 ...

    • Upon Radial Fretting of Dissimilar Materials 

      Ciornei, Florina; Irimescu, Luminița; Diaconescu, Emanuel (Universitatea ”Dunărea de Jos” din Galați, 2006)
      The paper presents a state of the art concerning radial fretting for dissimilar bodies and fretting damage. Four simple fretting models are defined in the literature: tangential, radial, rotational and torsional. Only the ...

    • Urban Pollution Issues Generated by Trams Traffic 

      Leopa, Adrian; Anghelache, Diana (Universitatea "Dunărea de Jos" din Galați, 2015)
      The modern society development involves new and diverse issues considering urban environmental pollution. Traffic generated sound and vibration are two upto- date urban environmental pollution causes besides air and water ...

    • Use of Alternative Fuels in Road Transport and its Environmental Effects. A Literature Review 

      Scarpete, Dan; Munteniță, Cristian; Bunea, Marina (Universitatea "Dunărea de Jos" din Galați, 2015)
      This paper presents a literature review on use of alternative fuels in road transport, in respect of their performance and emission in diesel engines/vehicles. The major limitations of vegetable oils as fuel in diesel ...

    • The use of Ternary Diagrams in the Analysis and the Mathematical Modeling of Bank Assets Structure 

      Călinică, Ramona Mariana; Călinică, Daniel (Europlus Galati, 2012-03)
      The objectives pursued in this paper are: to obtain by means of ternary diagrams imagistic representations of the structure of assets in credit banking institutions operating in Romania in case of stability, turbulence ...

    • Usefulness of Artificial Neural Networks for Predicting Financial and Economic Crisis 

      Chiriţă, Mioara (“Dunarea de Jos” University of Galati, 2012)
      The objective of the present study is to explore the issue of the forecasting of economic crisis using the neural network. The subject is of great importance in the economy, more so as that most countries affected by ...

    • Using CAD Sistems in Ecodesign 

      Haraga, Georgeta; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2012)
      This paper has as principal objective to point out the aspects related to ecodesign and 3D modelling of a trolley for firewood that can be realised using CAD systems. From these, the CATIA program has been chosen. The ...

    • Using Design Patterns in Education and Tutoring for the Software Systems Projects in Economic 

      Novac-Ududec, Cornelia ("Dunarea de Jos" University of Galati, 2009-01)
      The paper deals with a training system with a client-server architecture created for students who are learning to design and implement object-oriented software systems with reusable components, and also targeting those ...

    • Using Dorrenberg Steel in Mchine Industry 

      Ciurea, Aurel (Universitatea "Dunareas de Jos" din Galați, 2003)
      The steels were, are and will be o long period of time the raw material in machine industry. Using of this materials implicate a very good technical performance for each type and theirs compatibility with the working ...

    • Using Renewable Energy for a Sustainable Development 

      Simionescu, Aurel Gabriel; Dragomir, Mariana Carmelia (“Dunarea de Jos” University of Galati, 2012)
      Regarding energy, the greatest global challenges is ensuring growing demand to provide access to energy and to substantially reduce the sector's contribution to climate change. The aim of this article is to analyze the ...

    • Utilisation of Electrochemical Methods for Characterization of Some Corrosion Inhibitors for Steel and Copper 

      Constantin, Florina; Abrudeanu, Mărioara; Millet, Jean-Pierre (Universitatea "Dunărea de Jos" din Galați, 2009)
      The effect of chromate and molybdate on the corrosion inhibition of copper and steel has been investigated in two eutectics solution at room temperature. We used stationary electrochemical methods and optical microscopy ...

    • Vague Criteria Relational Database Queries 

      Tudorie, Cornelia ("Dunarea de Jos" University of Galati, 2003)
      The most accessible interfaces querying relational database should allow vague terms included in selection criteria. The gradual property stands for the simplest vague selection criterion, but more categories of vague ...

    • Values of the Solutal Marangoni Number in Very Dilute Fe-C-O Solutions at 1873K 

      Niță, Petre Stelian (Universitatea "Dunărea de Jos" din Galați, 2007)
      Low carbon, aluminum killed steels are well represented by the adequate part of the Fe-C-O system, where are available useful experimental data, regarding the surface tension and viscosity. The reference dynamic ...

    • Vaporisation of the Metallic Bath Component During Refining in Oxygen Converter 

      Ivănescu, Lilica; Ivănescu, Alexandru; Vasilescu, Elisabeta (Universitatea "Dunărea de Jos" din Galați, 2008)
      The paper presents a series of researches regarding the vaporization of the component elements of the metallic bath and slag during refining in LD converter. Also, the main factors which influence the vaporization process ...

    • VAR Methodology in Assessment of the Financial Stability 

      Isac, Bors (“Dunarea de Jos” University of Galati, 2015)
      Projecting a new operational framework designed to ensure the implementation of macroprudential policy in order to ensure financial stability, it should start from developing the capacity of identifying and measuring the ...

    • Variation of Mechanical Characteristics for Thin Wall Tubes Processed in Ultrasonic Field 

      Susan, Mihai; Achiței, Cristian; Ștefanică, Roxana Gabriela; Gavrilă, Bogdan Lucian (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper presents the variation of mechanical characteristics of resistance and plasticity for thin wall tubes made of stainless steel 10TiNiCr180, processed in ultrasonic field. Decrease of mechanical characteristics ...

    • Vector Space Model for Document Representation in Information Retrieval 

      Munteanu, Dan ("Dunarea de Jos" University of Galati, 2007)
      This paper presents the basics of information retrieval: the vector space model for document representation with Boolean and term weighted models, ranking methods based on the cosine factor and evaluation measures: recall, ...

    • Vegetal Oils as Lubricating Materials 

      Calomir, Camelia; Ștefănescu, Ioan; Chiriță, George (Universitatea ”Dunărea de Jos” din Galați, 2008)
      The success of vegetal oils is related to their biodegradability and reduced toxicity but a wide use is limited by their insufficient stability in time. Biodegradable oils have ecological advantages, being comparable or ...

    • Vibration Diagnosis Systems for a Cold Rolling Mill Machine 

      Dragomir, Ștefan; Măcuță, Silviu; Spânu, Constantin (Universitatea "Dunărea de Jos" din Galați, 2007)
      In this work is shown the importance to use a monitoring by vibration system for a cold rolling mill machine. The using of this monitoring vibration system reduce maintenance costs, minimize the impact on operation because ...

    • Vibration Measurement Equipment 

      Grigorescu, Luiza (Universitatea "Dunărea de Jos" din Galați, 2006)
      This paper describes the principles of operation of typical instrumentation used in the measurement of shock and vibration. It deals with the measurement of parameters which characterize the total (broad-band) signal.