Căutare 1993 -2018 după Data publicării

Afișează articolele 261-280 of 552

    • Performing System for Purifing Waste Water 

      Dragomir, Ștefan; Dragomir, Georgeta; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2010)
      Status of water pollution can be controlled and reduced. For this purpose it uses two types of processes, applied more or less consistently by the management and technical design. The first group of processes is characterized ...

    • 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 ...

    • Sources of Emissions in the Sintering and Blast Furnace Plant 

      Chiriac, Alexandru; Florea, Gheorghe; Saracin, Ioan; Panda, Olimpia (Universitatea "Dunărea de Jos" din Galați, 2010)
      The main technological operations for producing the sinter used for preparing the hot metal in the furnace are: preparation and transport of raw materials used for producing the sinter (transport, storage, crushing, ...

    • Problems and Solutions Regarding the Centrifugal Casting of Wire Sheave for Heavy Cranes 

      Cănănău, N.; Scarlet, D.; Florea, G. (Universitatea "Dunărea de Jos" din Galați, 2010)
      The centrifugal casting of wire sheave is a technological method that ensures the important quality requirement, the continuity of the material in the active rolling zone of the sheave. However the centrifugal casting ...

    • Soil Pollution with Heavy Metals 

      Vlad, Maria; Movileanu, Gelu (Universitatea "Dunărea de Jos" din Galați, 2010)
      In this paper was studied soil pollution with heavy metals (copper, chrome, manganese, lead, zinc, cadmium, nickel) caused by the municipal waste from landfill. The level of soil pollution depends on rain regime which ...

    • Aspects Regarding the Tradition of Bell Manufacture and USE 

      Carcea, Ioan; Bălțătescu, Oana; Floarea, Raluca-Maria (Universitatea "Dunărea de Jos" din Galați, 2012)
      The paper presents the casting art of bells, their spiritual significance, as well as their evolution over time. The bells may be made of both metallic or/and nonmetallic materials, of various shapes and sizes. While ...

    • Integrated Analytical Study for the Somes Metalic Artefact Discoveri in IBIDA SITE, Romania 

      Vasilache, Viorica; Aparaschivei, Dan; Sandu, Ion; Vasilache, Violeta; Sandu, Ioan Gabriel (Universitatea "Dunărea de Jos" din Galați, 2012)
      The paper presents the results of the analyses conducted using the SEM-EDX and micro-FTIR co-assisted techniques, on several metallic artefacts unearthed during the excavations at the (L)Ibida archaeological site in Slava ...

    • Influence of Normale Loads on Corrosion Behaviour of Ti-6Al-4V Alloy During Fretting in Artificial Saliva 

      Mardare, Eliza; Benea, Lidia; Celis, Jean-Pierre (Universal "Dunărea de Jos" din Galați, 2012)
      The fretting corrosion behaviour of untreated Ti-6Al-4V alloy in artificial saliva solution was evaluated based on the change in open circuit potential (OCP) measured as a function of time. Fretting corrosion experiments ...

    • Vibrations and Torque Monitoring Processes for a Cold Rolling Mill 

      Dragomir, Ştefan; Diaconu, Nicolae; Bordei, Marian (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      This paper presents researches made on a system of monitoring and other parallel systems for diagnose used in a cold rolling mill. The first system (with specific measurement sensors) is an online vibration monitoring ...

    • Characterisation of CVD Niobium Carbine Coatings on Hard Carbide Substrate 

      Constantinescu, Stela; Vlad, Maria; Radu, Tamara (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      Hard coatings are often used for mechanical properties such as wear and friction resistance. The corrosion behaviour may also be an important criterion for industrial applications of these coatings. In this paper, the ...

    • Obtaining and Characterizing TIN-LEAD Coatings on Steel Band 

      Radu, Tamara; Ciocan, Anişoara; Vlad, Maria (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      The experimental research was at the basis of the hot immersion coating technology with Sn-Pb alloy of the steel bands presented in the study. The characterization of these layers was achieved through microscopic analyses ...

    • A test for Rapid Tribological Characterization of Bearing Steels 

      Gheorghieș, Constantin; Buciumeanu, Mihaela; Scarpete, Dan; Gheorghieș, Livia; Bold, Dorian (Universitatea "Dunărea de Jos" din Galați, 2012)
      In this paper is a study the influence of the material and heat treatment on the changes of the fine structure parameters of the superficial layer of triboelements during the first cycles of rolling contact process. 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 ...

    • 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 ...

    • 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. ...

    • Performance Management System for purifyng Polluted Industrial Water 

      Dragomir, Ştefan; Dragomir, Georgeta; Bordei, Marian (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      In this paper we show an integrate system of water management and an efficient solution that is a floating dock, placed in the harbour area. Water quality is one of the most important elements for life support and ...

    • Properties of Slags in the System CaO-MgO-Al2O3-SiO2, Important in Deoxidization and Desulphurization of Low Carbon Aluminium Killed Steels 

      Niţă, Petre Stelian (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      Properties of refing slags belonging to the system CaO-MgO-Al2O3-SiO2 are important in simultaneous or succesive refinig treatment processes in the ladle and other refing metalurgical reactors. The efficiency of treatments ...

    • Increase the Steels Purity cast in Vacuum 

      Mincu, Valentin; Constantin, Nicolae (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      The need to develop products with special characteristics and high mechanical properties led to the introduction of plastic deformation of semifinished materials. Special purpose products are produced from slabs, ...

    • Selective Growth of 1D Nanostructured Oxide Materials Using PDMS Stamp 

      Danciu, Anca-Ionela; Mușat, Viorica; Busani, Tito; Gonçalves, Alexandra; Pinto, Joana V.; Costa, Mafalda; Bernacka-Wojcik, Iwona; Martines, Rodrigo; Fortunato, Elvira (Universitatea "Dunărea de Jos" din Galați, 2012)
      The approach for selective growth of 1D nanostructured oxide materials using poly (dimethylsiloxane) (PDMS) stamp consists of using microcontact printing, as such the soft lithography technique, for transferring the ...

    • The Influence of Steam Treatment on Mechanical Properties and Abrasive Wear Behavior of Sintered P/M Steels 

      Marin, Mihaela; Potecaşu, Florentina; Drugescu, Elena; Potecaşu, Octavian; Alexandru, Petrică (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      In this paper is a study of the influence of steam treatment on sintered P/M steels, for three different types of powder. The abrasive wear of steam-treated sintered iron is analysed by abrasion tests. The specimens were ...