Afișează articolele 181-200 of 326

    • On Dynamics of Bucket Wheel Excavators with Radial Digging 

      Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2013-10-01)
      The paper presents the influence of some structural and operating parameters on external load characteristics caused by resistances to reclaiming at bucket wheel in the radial digging process.
    • On Line Competitiveness Based on Adeptive Control of the Manufacturing System 

      Dașchievici, Luiza; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2010)
      Competitiveness fully and synthetically characterizes the viability of an enterprise. In the economics literature competitiveness is analyzed in particular in economic and managerial terms with almost no insight into the ...
    • On the Control of the Element Finite Meshes with Dimension in Arithmetic Progression 

      Dumitrache, Petru (Universitatea "Dunărea de Jos" din Galați, 2012)
      The purpose of this article is to present the formulae for calculating the parameters defining the finite element meshes with variable dimensions in arithmetical progression along some user defined paths within the ...
    • On the Correction Factor for Calibration of the Flowemeters with Axial Turbine 

      Axinti, Gavril; Axinti, Adrian-Sorin (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper refers to axial turbine flowmeters used for technical measurements of volumetric flows at hydraulic driving systems. This study demonstrates that volumetric flow through the transducer has proportional value ...
    • On the Efficiency of Compacting Equipment 

      Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2010)
      In this paper, the efficiency of vibratory rammer during compaction is examined. A three-degree-of-freedom model has been established for analytical representation of the soil-rammer interaction. In the first approach, it ...
    • On the Influence of temperature the Cushioning Ability of the Hydraulic Cylinders 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2015)
      This paper presents some aspects related to the way the cushioning capacity of hydraulic cylinder is affected by the temperature variations of the hydraulic fluid. We have analysed the case of the hydraulic cylinders with ...
    • On the Influence of the Working Tools Shape in the Mixing Proces 

      Debeleac, Carmen-Nicoleta; Năstac, Silviu-Marian (Universitatea "Dunărea de Jos" din Galați, 2011)
      Optimisation of the working tools used in industrial factory becomes a fast and effective method to be implemented easier in the production process. The article presents more design variants of a concrete mixer tools. The ...
    • 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 ...
    • On the Product-Time and Cost Estimation in the Market-Manufacturing System 

      Dașchievici, Luiza; Ghelase, Daniela; Epureanu, Alexandru; Fălticeanu, Constantin (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper presents a product time and cost estimation method taking account the market dynamics and manufacturing system competitiveness. The method is based on the behavioral modeling using on-line unsupervised learning. ...
    • On the Rheological Behaviour of the soil in the Artificial Compacting Process 

      Oproescu, Gheorghe; Debeleac, Carmen; Leopa, Adrian; Năstac, Silviu-Marian (Universitatea "Dunărea de Jos" din Galați, 2008)
      The artificial compacting of the soil is made mostly with machines with dynamical action such as vibrating plate, vibrating beater or vibrating drum. Their effect on the compacting process of the soil has two origins: the ...
    • On the Stresses and Deflections Calculus in Bending the Cylindrical Naturally Twisted Bars, with Constant 

      Dumitrache, Petru (Universitatea "Dunărea de Jos" din Galați, 2011)
      The present paper deals with some aspects of the stresses and deflections calculus in case of the cylindrical, naturally twisted bars, with constant pitch, on the basis of assumptions on the linear-elastic behavior of ...
    • On the Use of Approximate Numerical and Analytical Methods in Order to solve the Differential Equations that Describe Vibrations of the Mechanical Systems 

      Cauteș, Gheorghe (Universitatea "Dunărea de Jos" din Galați, 2012)
      The paper makes a comparative study on the approximation errors of the solutions of the differential equations of second order using different numerical methods, a study which is assessed by the necessity of numerical solving ...
    • On-Line Assessment of the Manufacturing Systems Copettiveness 

      Ghelase, Daniela; Dașchievici, Luiza (Universitatea "Dunărea de Jos" din Galați, 2011)
      A company is competitive on a certain market when it succeeds in reaching, up to an acceptable level, some economic indicators: turnover, profit, market share comparable or superior to that of other competing companies ...
    • Operation Earning Power Modelling of the Manufacturing Process 

      Dașchievici, Luiza; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2012)
      In order to better represent the specified goal of the manufacturing process we propose (as a novelty) as a criterion the Earning Power (EP). It is both synthetic (because it reflects the essential motivation of the ...
    • Optimazation of Ultrasonic Flow Meters for Crude Oil Metering and Export 

      Yeboah, Kuma; Nedelcuț, Florin (Univeritatea "Dunărea de jos" din Galați, 2012)
      Ultrasonic flow meters, as all velocity or inference type devices, require an adequate flow stream conditioning in order to assure an accurate performance. Typical flow conditioning consists of straightening the upstream ...
    • Optimization and Control of the Operation Level in the Manufacturing System 

      Dașchievici, Luiza; Ghelase, Daniela (Universitatea "Dunărea de Jos" din Galați, 2014)
      The criterion that we consider to be the most important in analyzing the MTO company ability to make a profit, that is, to be competitive on a market is the earning power, Earning Power criterion. Earning Power modeling ...
    • Optimized Method for Synthesis of a Mechanism for Controlling a Hydraulic Operated Machine 

      Hauk, Niculai (Universitatea "Dunărea de Jos" din Galați, 2011)
      This paper presents how can be design a mechanism capable of self command. It is intended as a high uniformity of the way of action, so that external control is as safe and simple. Are taken into account the concrete conditions ...
    • A parametric Study on Position Workspace Capability of Capaman 

      Castelli, Gianni; Ottaviano, Erika; Ceccarelli, Marco (Universitatea "Dunărea de Jos" din Galați, 2009)
      A parametric study of main workspace characteristics is presented to describe CaPaMan capability and to investigate design effects of its parameters. Several numerical evaluations are reported to cover a wide range of ...
    • Performance and Evaluation of Make-To-Order Manufacturing System 

      Ghelase, Daniela; Dașchievici, Luiza (Universitatea "Dunărea de Jos" din Galați, 2012)
      The system environment provides on-line data on the actions undertaken which, properly analyzed and correlated, will further generate solutions in order to develop said system and make it competitive. The paper aims, ...
    • Performances Assessment from an Earthmoving Machine Through Power Monitoring 

      Debeleac, Carmen (Universitatea "Dunărea de Jos" din Galați, 2009)
      The research presented in this paper focuses on wheel loaders, which are representative for earthmoving machines. The author presents the acquired results for measuring dynamical performances by using a new method based ...