Afișează articolele 1886-1905 of 2993

    • On Process Modelling Using Physical Oriented and Phenomena Based Principles 

      Aiordăchioaie, Dorel; Popa, Rusten; Culea, Mihai ("Dunarea de Jos" University of Galati, 2000)
      This work presents a modelling framework based on phenomena description of the process. The approach is taken to easy understand and construct process model in heterogeneous possible distributed modelling and simulation ...
    • On the Applicability of State-of-the-Art Fault Diagnosis Methodologies to Simple and Complex Systems 

      Bocănială, Cosmin Dănuţ; Costa, José Sá da; Bumbaru, Severin ("Dunarea de Jos" University of Galati, 2010)
      This paper performs an analysis on the applicability of state-of-the-art fault diagnosis methodologies to both simple and complex systems. Here, a complex system represents a system whose global behavior, which emerges ...
    • On the Constitutive Equation of a Low Carbon Steel 

      Canănău, Nicolae; Alexandru, Petrică; Ionel, Petrea; Gurău, Gheorghe (Universitatea "Dunărea de Jos" din Galaţi, 2008)
      The paper shows the results of the researches concerning the equation of deformation behavior of low carbon steel. The behavior law is established starting from the experimental torsion moment. The composed constitutive ...
    • 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 Corrosion Behavior of Organic Nanocomposite Coatings 

      Gheorghieș, Constantin; Gheorghieș, Livia; Oancea, Constantin; Hagioglu, Petrica (Universitatea "Dunarea de Jos" din Galați, 2009)
      Recently, researches on composite coatings of organic nature with the addition of metallic oxide nanopowders have shown an increasing corrosion resistance of metallic materials. Carbon steel shows an improved behavior ...
    • On the Corrosion Resistance of Cu-Mo Composite Materials Obtained by PVD Method 

      Grechanyuk, V.G.; Grechanyuk, N.I.; Orac, L.; Denisenko, V.A. (Universitatea "Dunărea de Jos" din Galați, 2008)
      The Cu – Mo composite materials have been obtained by electron flow vaporizing followed by vapor –phase condensing. Researches have shown that corrosion resistance in wet environment varies with the content of ...
    • On the Effect of Spectral Characteristics of Roughness on Contact Pressure Distribution 

      Crețu, Spiridon; Bălan, Mihaela Rodica; Urzică, Ana (Universitatea ”Dunărea de Jos” din Galați, 2009)
      In the first part of the paper, the matrix containing the roughness heights is obtained by a linear transformation of the Gaussian input matrix, the coefficients of the transformation matrix being found as solutions of a ...
    • 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 harmonics reduction using wavelet based signal processing 

      Culea, Mihai; Aiordăchioaie, Dorel; Găiceanu, Marian ("Dunarea de Jos" University of Galati, 2000)
      This paper presents a method for calculating the reference currents needed for the command of an active filter. By using the Discrete Wavelet Transform (DWT) the high-frequency components of the currents are eliminated. ...
    • 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 Kinetics of Sol Gel Al:ZnO thin Films Crystallization on Silicon Substrate 

      Mușat, Viorica; Canejo, Joan; Iticescu, Cătălina (Universitatea "Dunărea de Jos" din Galați, 2006)
      Recently, there is a growing interest in applying ZnO thin films on silicon buffer substrates for p-n junction devices, optical wave guide, etc. A sol gel process is very attractive technique for obtaining oxide thin ...
    • 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 Performances of Different types of Controllers for Active Power Filters 

      Culea, Mihai ("Dunarea de Jos" University of Galati, 2004)
      This paper analyses the performances of three different types of controllers for shunt active power filters. The controllers are used in the d-q frame, the same frame in which the reference signal for the 5th and 7th ...
    • On the Potential of Using Fractional-Order Systems to Model the Respiratory Impedance 

      Ionescu, Clara; De Keyser, Robin ("Dunarea de Jos" University of Galati, 2006)
      This contribution provides an analysis of the human respiratory system in frequency domain by means of estimating the respiratory impedance. Further on, analysis of several models for human respiratory impedance is done, ...
    • On the Prediction of the Strip Shape in a Cold Rolling Mill (1700 mm) 

      Dragomir, Ştefan; Dragomir, Georgeta; Bordei, Marian (Universitatea "Dunărea de Jos" din Galaţi, 2008)
      In this paper is shown a new way for predicting the precision of laminated strip in a cold rolling mill (1700 mm). The increasing demands on the quality of rolled strip; need new technology for monitoring the strip shape, ...
    • 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 Relationship between Export Activity and Size 

      Arteaga-Ortiz, Jesús ("Dunarea de Jos" University of Galati, 2009-06)
      Together with the general and sector environment and various internal factors, firm size is one of the main groups of factors determining export activity. However, few works have examined this aspect, with the studies ...
    • 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 ...