Afișează articolele 333-352 of 552

    • R.N.U.R. Method of Risk Assessment Based on Ergonomic Criteria. Case Study: Crane Maintenance Electrician 

      Vasiliu, Adrian; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2013)
      This paper presents a case study on the evaluation of a job (electrical maintenance) in AMG plant through a less used method in Romania, respectively Renault method, used especially in France. Means of work are analyzed ...
    • Radial Forging Machine. Technology for Axle Type Parts 

      Hanganu, Doru; Neacșu, Marian (Universitatea "Dunărea de Jos" din Galați, 2013)
      This paper presents three types of radial forging machines to produce the axle type pieces. The new types of radial forging machines are presented cinematically. The movement of the deformation tools at these types of ...
    • Rapid Synthesisof ZnO Micro and Nanostructures 

      Plăiașu, Adriana Gabriela; Abrudeanu, Mărioara (Universitatea "Dunărea de Jos" din Galați, 2009)
      This paper focuses on the newer chemical synthesis of zinc oxide powders and the effects of reaction temperature and possible mechanism of ZnO formation. The study of the reaction mechanism at different temperatures has ...
    • Reasearches Regarding Structural Changes Due to Nickel Microlalloying of Hot Galvanizing Baths 

      Boiciuc, Radu; Preda, Adriana; Boiciuc, Simona (Universitatea "Dunărea de Jos" din Galați, 2005)
      This work offers a synthesis of researches performed in laboratory and regards the nickel microalloying of hot galvanizing baths. Experiments followed the structural changes of both hot galvanizing bath and deposed layer ...
    • Reasearches Regargindg the Influence of Steam Oxidation on Sintered Alloys Properties 

      Marin, Mihaela; Potecaşu, Florentina; Potecaşu, Octavian (Universitatea "Dunărea de Jos" din Galaţi, 2013)
      In this paper is studied the influence of steam treatment applied on sintered steels and the mechanical properties and abrasive wear behavior for two different types of powder. Steam treatment was carried out at temperature ...
    • Recovery of Copper from Waste Cables used in Electrical Appications 

      Bașliu, Vasile; Ciocan, Anișoara; Tudor, Beatrice (Universitatea "Dunărea de Jos" din Galați, 2015)
      The recycling of copper cables wastes has as main objective the recovery of copper. The effectiveness of this operation is guaranteed by the following factors: infrastructure able to collect, select and sort these wastes; ...
    • Recycling of Cellulosic Waste in the Energy Sector 

      Drăgan, Mircea Viorel (Universitatea "Dunărea de Jos" Galați, 2014)
      Biomass is one of the Earth’s most abundant and precious resources. It offers not only food but also energy, materials used for construction, chemicals and much more. Biomass has always been used for generating energy ...
    • Recycling of Hematite Fine Waste by Pelletisation 

      Ciocan, Anișoara; Tudor, Beatrice (Universitatea "Dunărea de Jos" din Galați, 2017)
      A large volume of by-products and residues is generated during iron and steel production. Much of these represents valuable materials and can be recovered and recycled inside the flow of integrated steel plants. The ...
    • Recycling of Integrated Steel Plant Solid Wastes in the Sintering Process and Corresponding Effects on Pollutant Emissions 

      Ciocan, Anișoara; Tudor, Beatrice (Universitatea "Dunărea de Jos" din Galați, 2013)
      The new practices in sintering technology allows for the use of a wide range of iron-containing materials in charge with obtaining the agglomerate with necessary characteristics for optimal operation of the blast furnace. ...
    • Recycling Possibilities of Metallurgical Slag 

      Cioroi, Maria; Nistor (Cristea), Licuța (Universitatea "Dunărea de Jos" din Galați, 2007)
      The target of the current metallurgical industry is to recycle and utilize all their by-products. Slags are the important wastes and by-products of metallurgical industry, which have been treated, recycled and used ...
    • Redesigning a Jaw Crusher Using Value Analysis Part I 

      Chichernea, Florin; Chichernea, Alexandru (Universitatea "Dunărea de Jos" din Galați, 2009)
      Value Analysis (VA) is a method that provides an operating technique using a creative and organized approach. It is managed by a group, each of them selected according their expertise in specific subjects and coordinated ...
    • Redesigning a Jaw Crusher Using Value Analysis. Part II 

      Chichernea, Florin; Chichernea, Alexandru (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper presents a complete study of VALUE ANALYSIS applied concretely to a selected piece of equipment. The phases and ITERATIVE operation of the Value Analysis method are presented. Value Analysis combines both ...
    • Reducing the Sludge Quantity Ptoduced from Used Water Purification - a Source of Profit 

      Sava, Cornel; Drăgan, Iulia; Stroe, Ana Maria; Pirău, Cristina; Pică, Elena Maria (Universitatea "Dunărea de Jos" din Galați, 2016)
      This paper has its origins in the analysis of a real situation met in the Water Purification Plant from Cluj-Napoca city. The produced dehydrated sludge is about 70 - 80 tonnes / 24 hours, with a density that allows for ...
    • Reducing the Zinc Emissions by Upgrading of Steel Scraps Quality 

      Ciocan, Anișoara; Balint, Lucica (Universitatea 'Dunărea de jos" din Galați, 2013)
      The steel production is one of the major sources of heavy metals emissions to the environment. There are several possibilities for prevention and minimization of these pollutants. Emission reduction measures focus on ...
    • Reduction Rate of Remanent Stress in Thermal Spraying Depositions by Shot Peening 

      Teodoru, Leonard; Mihăilescu, Valentin (Universitatea "Dunărea de Jos" din Galați, 2007)
      Thermal electric-arc spraying coatings are widely utilized both to get new parts ant to repair the used ones. Just like with the other thermal spraying procedures, the other thermal spraying procedures, the thickness of ...
    • Regeneration of Used Engine Lubrication Oil by Solvent Extraction. The Solvent Influence on Oil Ratio 

      Sterpu, Ancaelena Eliza; Dumitru, Anca Iuliana; Neagu, Anișoara Arleziana (Universitatea "Dunărea de Jos" din Galați, 2013)
      Huge amounts of used lubricating oils from automotive sources are disposed of as a harmful waste into the environment. For this reason, means to recover and reuse these wastes need to be found. Problems arising from acid ...
    • Reseaeches Regarding the Elements Loss Through vaporization During the Elaboration Process LD Converter 

      Ivănescu, Alexandru; Doniga, Ana; Vasilescu, Elisabeta; Ivănescu, Lilica (Universitatea "Dunărea de Jos" din Galați, 2009)
      The paper presents a series of researches regarding the vaporization of the component elements of the metallic bath and slag during refining in LD converter. Also, the main factors which influence the vaporization process ...
    • Research About the Vibration Parameters for a Cold Rolling Mill Machine 

      Dragomir, Ștefan; Dragomir, Georgeta; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2006)
      By using the equipments of vibration measurement we can fight against the damages (strip undulation and thickness variation on the length) who is show in while of mill work. The amplitude of vibration parameters determine ...
    • Research Concerning the Influence of Heat Treatment on Physical and Mechanical Properties of Aluminium Based Alloys 

      Vasilescu, Elisabeta (Universitatea "Dunărea de Jos" din Galați, 2006)
      This work presents the experimental results concerning the behavior on heat treatment of on aluminum based alloy belonging to the class of aluminum alloys deformable and harden by heat treatment. The laboratory level ...
    • Research Concerning the Influence of Laser Cladding on the Operating Charactersitics of the Surface Layers Obtained from High-Speed Steel Powder 

      Boiciuc, Simona (Universitatea "Dunărea de Jos" din Galați, 2013)
      The paper presents the corrosion behavior of laser cladding layers in 0.5 M NaCl along with a durability test, compared with samples made of clasically hardened HS6-5-2 steel. The higher characteristics of the laser ...