Căutare 1995-2015 după Titlu

Afișează articolele 307-326 of 326

    • The Technical-Economic Modelling of Competitiveness for Manufacturing Systems 

      Dașchievici, Luiza; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2009)
      On world wide level, enterprises are confronted with an evermore accelerated dynamics and the unpredictable changes. This is influenced by the technical and scientific progress, dynamic requirements of the customers, ...

    • The Technological Resource of Digging and Transport Heavy Equipmens Used in Road Costructions 

      Sârbu, Laurențiu (Universitatea "Dunărea de Jos" din Galați, 2004)
      For it can be applied the efficiency analysis of a mecanical system , on the basis of probabilistic transform and correlation methods , in the case of industrial tractors which are working in aggregate with different ...

    • The Undissolved Air Influences on Dynamic Behavior of Hydraulic Driving Systems 

      Axinti, Gavril; Axinti, Adrian-Sorin (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper is a part of a group of papers which deal with the changes due to the oil - air mixture into the hydraulic actuating systems. The undissolved air into the hydraulic agent of technological equipment actuating ...

    • The Utilization of 3X3 Matrixes in Setting Kinematics Chains Analysis for Robots Components 

      Naidin, Gigi (Universitatea "Dunărea de Jos" din Galați, 2009)
      Within the kinematic study of a rigid solid, its motion is studied faceto- face by a reference system, fixing positions, speeds and accelerations of a reference system, solidarily connected to the rigid solid.

    • The Wear Influence on the Working Condition 

      Simionescu, Cristian-Silviu (Universitatea "Dunarea de jos' din Galaţi, 2003)
      During the operation, any machine, equipment, machine parts, or piece, is submitted to a wear. The evolution in time of the wear size, or, in other words, a real form for the characteristic of the wear depends on ...

    • Theoretical and Experimental Studies for Auto Sustainable Device Using Coandă Effect 

      Florescu, Iulian; Florescu, Daniela; Nedelcu, Dragos-Iulian (Universitatea "Dunărea de jos" din Galați, 2011)
      The paper presents the stages involved in creating the experimental prototype of an auto sustainable device based on the Coandă effect as well as some simulations performed on the aerodynamic profile of the device using ...

    • Theoretical and Numerical Considerations on the Composite Neoprene Used at Vibration and Shock Isolation Isolators 

      Bratu, Polidor; Drăgan, Nicușor (Universitatea "Dunarea de Jos" din Galați, 2010)
      Construction of passive insulation elements in neoprene single microstructure mixture has demonstrated that the isolators can have the necessary elastic characteristics but low internal damping. The reduced scale models ...

    • Theoretical Approach for the Control of the Make to Order Manufacturing System : Part 1 

      Ghelase, Daniela; Dașchievici, Luiza (Universitatea "Dunărea de Jos" din Galați, 2012)
      In practice, decisions on acceptance of order and production planning are often considered separately. Sales Department is responsible for accepting orders, while the production department in charge of production plans ...

    • Theoretichal Considerations about the Maximum Vibration Limits for Wheel Loader Affected by the Ground Conditions 

      Debeleac, Carmen (Universitatea "Dunarea de Jos" din Galaţi, 2003)
      In this paper, the author make a study of vibration (vertical acceleration) into wheel loader who is affected by the ground conditions. It is known from many studies and investigations, that the drive vibrations are ...

    • Thermical Phase Shift Determination Around Vertical Bridges 

      Ionescu, Ștefania (Universitatea "Dunărea de jos' din Galați, 2011)
      The way this concept is defined (in the prescription) is not the most proper for technical regulations where more clear and precise formulations are required especially when important concepts are defined. The estimation ...

    • Thermoelectric Generator - An Alternative Electric Power Source 

      Diaconescu, Ioana; Grigorescu, Luiza (Universitatea "Dunarea de Jos" din Galați, 2012)
      This paper presents the thermoelectric generators which converting directly heat flow into electric energy. Thermoelectric modules (TEM) normally designed for cooling are suited for power generation as well, as they are ...

    • Tower Crane Dynamics Study 

      Anghelache, Diana (Universitatea "Dunărea de Jos" din Galați, 2015)
      The emergence and development of new highly complex technical products generate numerous problems in designing technological systems. For these products design and manufacturing traditional models are no longer sufficient ...

    • Transducer with Phase Modulation and Adjustable Sensitivity 

      Grigorescu, Luiza; Diaconescu, Ioana (Universitatea "Dunărea de Jos" din Galați, 2011)
      The work presents an easy converter in order to be used at little displacement. The circuit gives two electrical signals with the same frequency and with different phases, dependent on the displacement.Both signals go ...

    • Treating Propriety Through Cutting of Metals and Alloys in Cryogenic Condition 

      Ciurea, Aurel (Universitatea "Dunărea de Jos" din Galați, 2003)
      It is known that a base function of cutting environments is to cool the cutting tools, the tooled area and the material that is removed under the shape of chip. But it is also known that beginning with the increase of ...

    • 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 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 ...

    • 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.

    • Virtual Prototype for Simulation and Analysis of Traction Systems in Interaction with Roads 

      Axinti, Adrian-Sorin; Năstac, Silviu-Marian; Gavril, Axinti (Universitatea "Dunărea de Jos" dn Galați, 2008)
      This study deals with numerical simulation of an equipment with full hydrostatic driving system. Based on the clasical mathematical models - single degree of freedom and two degree of freedom models, it was developed a ...

    • A Web Based Framework Supporting Collaboration in the Manufacturing Process 

      Bouzakis, K.-D.; Andreadis, G.; Vakali, A.; Sarigiannidou, M. (Universitatea "Dunărea de Jos" din Galați, 2006)
      Despite the rapid evolution of technology and more specifically of the web and the services provided, the weakness of an immediate transformation of data exchange in the manufacturing world still exists. The need ...

    • Working Characteristics of the Special Isolation Devices Against Vibratory Actions 

      Năstac, Silviu-Marian (Universitatea "Dunărea de Jos" din Galați, 2007)
      The actual researches for finding optimal antiseismic protection solutions are straightening to the few areas of activity: the first area of research is the base isolation of buildings or theirs parts, against the ...