Căutare Fascicula IX după Titlu

Afișează articolele 258-277 of 552

    • Mechanical Resistance on Cold Welding Achievement Between Cogged Sufaces 

      Georgescu, Bogdan; Georgescu, Valeriu (Universitatea "Dunărea de Jos" din Galaţi, 2008)
      Cold welding on cogged surfaces is a technology developed by researchers from Robotics and Welding Department, Dunarea de Jos University of Galati. Easily deformable samples, having plane surfaces, are pressed on cogged ...

    • Mechano-Erosion: A Novel Test Methodology to Accelerate Erosion in Rolling Contact Fatigue Experiments 

      Karunamurthy, Balamurugan; Hadfield, Mark (Universitatea "Dunărea de Jos" din Galați, 2008)
      Rolling contact fatigue testing of rolling elements with low saturation temperature lubricants result, in several difficulties. Mainly, uncontrolled phase changes due to flow dynamics often cause difficulties in assessing ...

    • Melting-Casting Plant Using Vibrating of Melts in Order to Obtain Composite with Tehnological Utility 

      Bașliu, Vasile; Constantin, Ionuț; Istrate, Gina Genoveva; Petrea, Ionel (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper presents the obtaining of composites materials with technological utility through vibration technology. In order to obtain these composites, and plant was designed and manufactured. In order to show the ...

    • Mercury Determination from Incidentally Polluted Waters by Collecting Gravimetry in Organic Stage Method 

      Mitoșeriu, Olga; Levcovici, Dan T.; Filip, Gabriela (Universitatea "Dunărea de Jos" din Galați, 2006)
      Determination of mercury in incidentally polluted waters, presented in CALIST Program, was carried out using tiobis-β-naphthol as a reagent. The method proposed for mercury determination, named “collecting gravimetry in ...

    • Metal Heating Furnace with Flue Gas Condensation. A Thermoeconomic Analysis 

      Pană, Daniela; Drăgan, Marcel; Ion, V. Ion (Universitatea "Dunărea de Jos" din Galaţi, 2014)
      The heat treating furnaces are one of the largest energy consumers in the manufacturing sector and therefore many techniques to improve their energy efficiency have been developed. One of them focuses on the recovery of ...

    • Metallic matrix Composites with Ceramic Particles Wetting Conditions 

      Neagu, G.; Ștefănescu, Fl.; Mihai, A.; Stan, I.; Odagiu, I. (Universitatea "Dunărea de Jos" din Galați, 2013)
      The paper presents the main aspects regarding the mixtures obtained made up from aluminium melts and different kinds of ceramic particles (silicon carbide and boron carbide). Synthetically discussed are the wetting ...

    • Method of Deternining the Main Features of Magnetic Ferromagnetic Materials 

      Gheorghieș, Livia; Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2012)
      The purpose of this paper is to present a method for determining the main magnetic features such as magnetic induction B, magnetization M, the coercive magnetic field Hc, permeability μ, using hysteresis cycle chart. The ...

    • Methods of Protection of National Architecture Monuments 

      Croitoru, Gh.; Colesnic, Ig. (Universitatea "Dunărea de Jos" din Galați, 2013)
      The paper discusses the problem of monuments conservation in terms of technical implementation and based on the importance of conservation of historical content, and it helps to skillfully handle the complicated untypical ...

    • Methods to reduce gas emissions onboard ships 

      Bosoncă, Ioan (Universitatea "Dunărea de Jos' din Galaţi, 2016)
      Regarding the latest IMO requirements, the EEDI (Energy Efficiency Design Index) is mandatory to be limited as levels under IMO MEPC requirements. The paper presents some paths to reduce EEDI as are applied onboard a ...

    • Microstructural Characteristics of Sintered Powder Metallurgy Alloys 

      Marin, Mihaela; Potecaşu, Florentina; Potecaşu, Octavian (Universitatea "Dunărea de Jos" din Galaţi, 2014)
      The purpose of this paper is to study the influence of processing parameters on the microstructural characteristics of sintered powder metallurgy alloys. The specimens were produced from atomised iron powders with different ...

    • Microstructural Characterization of the TiMoZrTa Alloy 

      Bălțatu, Mădălina Simona; Cimpoeșu, Ramona; Vizureanu, Petrică; Achiței, Dragoș Cristian; Minciună, Mirabela Georgiana (Universitatea "Dunărea de Jos" din Galați, 2015)
      In recent years, different types of titanium alloys have been investigated with the aim of using materials in biomaterials field, and Ti-Mo system alloys are very promising materials. Alloying titanium with biocompatible ...

    • Microstructural Evolution of al 1100 Aluminum Subjected to Severe Plastic Deformation 

      Gurău, Gheorghe; Gurău, Carmela (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      The goal of this document is to promote a sequence of bulk-deformation processes able to produce ultrafine grain and also nanostructured wires with adequate length to be interesting for processing in metallurgical industry. ...

    • Modelling and Numerical Simulation of the Atmospheric Dispersion of Pollutants from an Integrated Iron and Steel Complex-Part I 

      Munteanu, Viorel (Universitatea "Dunărea de Jos" din Galați, 2010)
      The Iron and Steel Complex processes handle, store and undertake important amounts of raw materials (iron ores, coals, etc.) energy, fuels, waste waters, slags and other different types of wastes. These activities have ...

    • Modelling and Prediction in Failure Processes by Mechanical Stresses in Corrosive Environment 

      Palaghian, Liviu; Thompson, Mioara; Băicean, Svetlana; Bucșă, Sorin (Universitatea "Dunărea de Jos" din Galați, 2007)
      The complex interaction effect of mechanical stress- mechanical systems and aggressive environment, leads, at dramatic decreasing of their durability and reliability. The analyze of physical-chemical processes such as: ...

    • Modelling by Finite Element Analysis Method of Stress State Establishing for an Alloy Steel 

      Măcuță, Silviu; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2008)
      The paper presents some results about the tension state in samples subject to pure bending fatigue process. Numerical simulation based on finite element method was used. The tension field induced by a vertical deformation ...

    • Modelling of the Flow and Deformation Fields at teh Profiles Rolling by Field Lines Method 

      Cănănău, Nicolae; Petrea, Ionel; Corobete, Gheorghe (Universitatea "Dunărea de Jos" din Galați, 2005)
      This paper presents a method for modeling of the rolling process based at the deformable continuous medium mechanics, the theory of field lines. The rolling of the profiles and plates may be evaluated as the plane strain ...

    • Modelling, Operation and Control of Multiterminal DC Connection for Offshore Wind Farms 

      Drăgan, Mircea Viorel; Drăgan, Cristina Mădălina; Drăgan, Crina Violeta; Hanganu, Doru (Universitatea "Dunarea de Jos" din Galați, 2009)
      Renewable energy systems are tending to become more and more present in the energy market and wind power has already proven its potential. Wind parks of thousands of MW are planned to be place into sea faraway from the ...

    • Modern approaches in Design Optimization of Parts and the Development Trend of Surface Treatments 

      Vasilescu, Elisabeta; Doniga, Ana (Universitatea 'Dunărea de Jos"din Galați, 2012)
      This paper summarizes the surface engineering technologies having a substantial contribution to increasing operational performance of the parts as well as current trends in the implementation of surface processing ...

    • Modification of Surface Properties by Laser Cladding with Ni-Cr-B-Fe-Al Alloy 

      Boiciuc, Simona; Spânu, Constantin (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      The paper is focused on modification of surfaces properties by laser cladding. To follow the corrosion behavior in different media of laser cladding layers made of nickel based alloy Ni - Cr - B - Fe - Al. It was studied ...

    • Monitoring of the Rolling Mill Vibration 

      Dragomir, Ștefan; Dragomir, Georgeta; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2009)
      These researches show the influence of mill vibration on the thickness profile of the stainless steel sheet. The alloy elements like Ni and Cr inside the stainless steel could amplify the rolling mill vibration and ...