Căutare 1993 -2018 după Titlu

Afișează articolele 61-80 of 552

    • Chargers for Blast Furnaces Double Bell VS. Rotary Chute 

      Vasiliu, Adrian (Universitate "Dunărea de Jos" din Galaţi, 2016)
      The distribution of materials at the mouth of the loading of a furnace is decisive for its operation at optimal efficiency. For this operation using charging devices that can be of several types is useful. The paper ...

    • Chemical and Structural Changes for Bimetallic Materials Obtained by the Welding Process 

      Ciocan, Anişoara (Universitatea "Dunărea de Jos" din Galați, 2005)
      This paper presents the transformations which take place during the obtaining process of bimetallic materials. As a plating process was used the welding. The added material was a bronze with aluminum complex alloyed with ...

    • Choosing and Using Rationally the Thermic Processed Steels 

      Potecașu, Octavian; Potecașu, Florentina (Universitatea "Dunărea de Jos" din Galați, 2012)
      On a global scale one can notice a constant preoccupation for a rational choosing and using of the materials on the whole and, especially of the steels with the main objective the increase of the machines’, equipment’ ...

    • Cladding by Welding with Hard Alloys 

      Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper presents the results of a research on the role of cladding by welding support of continuous casting plant. Emphasizing that plating leads to outer layer the study presents a complex of properties favorable for ...

    • Coating of the Lasting Moulds with Hard Alloys 

      Dima, Ovidiu (Universitatea "Dunărea de Jos" din Galați, 2010)
      This paper presents the researches on the welded coating of lasting moulds used for casting at high melting temperatures. It shows that the coating through the flux welding with the addition of metal powders and graphite ...

    • Coatings Systems: Chromium Carbide, Nitride and Carbonitride 

      Constantinescu, Stela (Universitatea "Dunărea de Jos" din Galați, 2005)
      The process of the chemical deposition from vaporous implies the adsorption of the mobile atoms (monomers) on the substrate surface, their migration with embryos and stable nucleus formation, followed up by further growth ...

    • Comparative Characteristics of Martensite and Bainite in Cu-Based SMAs 

      Mihalache, Elena; Lohan, Monica-Nicoleta; Pricop, Bogdan; Bujoreanu, Leandru-Gheorghe; Suru, Marius-Gabriel (Universitatea "Dunărea de Jos" din Galați, 2014)
      The present work reports the evolution of micro-structure and shape memory behavior in a Cu-15 Zn-6 Al (mass. %) shape memory alloy (SMA), as a function of the applied hot working procedure and of the performed heat ...

    • Comparative Corrosion Behavior of Pure Copper and Brass in 3.5% NaCl Solution 

      Benea, Lidia; Dănăilă, Eliza (Universitatea "Dunărea de Jos" din Galați, 2016)
      Copper and brass are used in many economic sectors as electrical, construction, transport and others. From common household electrical wiring to boat propellers and from photovoltaic cells to saxophones, copper and its ...

    • Comparison of the Efficiency of Three Types of Solar Collectors 

      Mocanu, Cătălin Bogdan; Panait, Tănase; Teodoru, Alexandrina; Tasma, Daniela (Universitatea "Dunărea de Jos" din Galați, 2012)
      Solar energy is one of the most abundant resources energy available in the world. Solar collectors have evolved in the last decades, but still they haven’t reached very high efficiencies. The collector efficiency is ...

    • Composite Based on AIMg Alloys Obtained by Gas Insufflation 

      Bălțătescu, Oana; Florea, Raluca Maria; Roman, Costel; Carcea, Ioan (Universitatea "Dunărea de Jos" din Galați, 2013)
      Composite materials are the most advanced class of materials invented and produced by humans in modern times as well as a challenge for the future in the field of scientific and technological performance. They are made ...

    • Composite-Decorative Tiles with Granite 

      Potecașu, Octavian; Potecașu, Florentina; Drugescu, Elena (Universitatea "Dunărea de Jos" din Galați, 2006)
      The paper presents the results of the authors’ scientific research on a composite material with polymeric matrix, hardened with rock particles. It was studied the influence of the quantity of the hardening phase on the ...

    • Composition of Syngas Produced by Gasification of Agricultural Residue Briquettes 

      Tasma, Daniela; Panait, Tănase; Uzuneanu, Krisztina; Mocanu, Cătălin; Buţurcă, Raluca-Cristina (Univesitatea "Dunărea de Jos" din Galaţi, 2012)
      This paper summarizes the results of an experimental study on the gasification of briquettes made from different agricultural residues. There were investigated the effects of operating parameters such as temperature and ...

    • Compressive Behaviour of ultra-Sonicated Starch / Carbon Black / Epoxy Composites 

      Graur, Iulia; Mihu, Georgel; Bria, Vasile; Cîrciumaru, Adrian; Bîrsan, Iulian (Universitatea "Dunărea de Jos" din Galați, 2015)
      Fillers are generally used in order to change some basic properties of polymer matrix but the filler particles often tend to aggregate with consequences in terms of the mechanical properties of the final composite. In ...

    • Computer Vision System for Detection of Passenger Sleeping state for Advanced Driver Assistance Systems 

      Petrea, Ionel; Marin, Florin Bogdan (Universitatea "Dunărea de Jos" din Galaţi, 2014)
      The goal of this research is to develop an in-vehicle computerized system able to warn the driver, to assess the passenger’s state of sleeping in order to avoid affecting the driver psychologically and induce drowsiness. ...

    • Conductive-Atomic Force Microscopy Investigation of the Electrical Properties of Low Temperature Deposed ZnO Transparent thin Films 

      Alexa, A.; Pimentel, T.; Calmeiro, A.; Istrate, A.; Fortunato, E.; Mușat, V. (Universitatea "Dunărea de Jos" din Galați, 2015)
      The paper presents the investigation by conductive-atomic force microscopy (C-AFM) of the variation of the local conductivity and topography of the transparent ZnO thin films deposed onto soda lima glass substrates by ...

    • Contribution in the Domain of the Contact Stresses Between Cylinders of Cold Rolling 

      Maimon, A.D.; Boazu, D.; Stoicescu, L. (Universitatea "Dunărea de Jos" din Galaţi, 2008)
      Elasto-plastic contact stresses between working cylinder and support cylinder of cold rolling using FEM are presented in this paper. Pressure and tractions resulted from the rolling process were obtained by using a ...

    • Contribution of Heat and Thermochemical Treatments to the Improvement of the Perfomances of High-Speed Steel Tools 

      Torodoc, Nicoleta; Giacomelli, Ioan (Universitatea "Dunărea de Jos" din Galați, 2007)
      The In this paper the influence of non-conventional heat and thermo chemical treatments upon the structure of tool steels and implicitly, upon the performances that are derived from applying such treatments, is presented. ...

    • Contributions Regarding the Development of New Types of Solar Actuators 

      Romanescu, Adrian-Neculai; Țanța, Ovidiu-Magdin; Cenușă, Mihai; Nițan, Ilie; Poienar, Mihaela (Universitatea "Dunărea de Jos" din Galați, 2015)
      The paper presents the authors’ contributions to the development of solar actuators with bimetallic band and Bourdon tube in the EMAD Research Centre of ”Ștefan cel Mare” University of Suceava. The solutions and the ...

    • Contributions to Increasing the Quality of Urban Life Through the use of an Intelligent Road Traffic Management System 

      Carp, Bogdan Gabriel; Gingărașu, Mihai; Pînzaru, Narcisa Cela; Palaș, Serghei; Buruiană, Daniela Laura (Universitatea "Dunărea de Jos" din Galați, 2017)
      Traffic congestion is a phenomenon which occurs when road traffic is disturbed. In Galati city, traffic congestion increases rapidly due to an increase in the number of vehicles on the road. This work is an attempt to ...

    • Copper Plating Corrosion Study in Certain Environments 

      Cantaragiu, A.M.; Gavril (Donose), M.D.; Vladu (Radu), D.C.; Gheorghieș, C.; Tigău, N.; Cantaragiu, C.M. (Universitatea "Dunărea de Jos" din Galați, 2013)
      Copper plating was performed on nickel substrate by means of the potentiostatic electrodeposition method from a sulphate electrolyte solution. The copper coatings morphology was studied by means of the optical and ...