Căutare Fascicula IX după Titlu

Afișează articolele 130-149 of 552

    • Electrodeposition and Characterization of Zinc-Cobalt Alloy Coatings 

      Vasilache, Violeta; Gutt, Sonia; Sandu, Ion; Gutt, Gheorghe; Vasilache, Traian (Universitatea "Dunărea de Jos" din Galați, 2010)
      Electrodeposited alloys are important in industry due to their properties which are superior to those of single metal layer. Zinc-cobalt alloys were co-deposited on gold substrate. Composition of the layers was established ...

    • Electrodeposition Obtaining and Corrosion Behaviour of Phenol Formaldehyde Resin/Zinc Composite Coatings 

      Mitoșeriu, Olga; Ciubotariu, Alina; Benea, Lidia; Ponthiaux, Pierre; Wenger, Francois (Universitatea "Dunărea de Jos" din Galați, 2008)
      The present work has the purpose of obtaining composite coatings in zinc matrix by using phenol - formaldehyde resin type NOVOLAC (RESITAL 6358/1) in the electrodeposition process of zinc. The PF resin/Zn composite ...

    • Electromagnetic Strip Mills' Driving Rollers Metallisation Advanced Technics 

      Motoiu, Petra; Dumitrescu, Daniela; Fratila, Cornel; Trusca, Dacia (Universitatea "Dunărea de Jos" din Galați, 2007)
      The continuous increase of the applications of thermal sprayed coatings together with the demand for layers having always more and more enhanced performances and properties stimulates the research activity toward ...

    • Elements of Drawing Theory and Technology of the High Mechanical Strength Wires in Ultrasonic Field 

      Iliescu, Viorel; Susan, Mihai; Ștefănică, Gabriela Roxana; Achiței, Dragoș; Landkrammer, Brian Tudor (Universitatea "Dunărea de Jos" din Galați, 2009)
      In the paper are presented elements of drawing theory and technology of the high mechanical strength wires, when the auger die is located in the maximum of the waves oscillation and it is activated on drawing direction. ...

    • Emissions of Hydrochloric Acid Vapors Generated by Pickling Process from Cold Rolling Mill of Steel Strips 

      Ciocan, Anișoara (Universitatea "Dunărea de Jos"din Galați, 2015)
      The most important pollutant emitted in the sector of pickling within a cold strip mill in an integrated steel mill are the hydrochloric acid vapors. This work presents the chemical reactions between the hydrochloric ...

    • Emphasizing Physical Aspects and Applications of Graphenes 

      Baștiurea, Marian; Rodeanu, Magdalena Silvia; Dima, Dumitru (Universitatea "Dunărea de Jos" din Galați, 2018)
      Graphenes have attracted much attention due to their properties and possible applications. This approach is dedicated to shortly describe the problems related to this promising element. Some aspects concerning physical ...

    • Emphasizing the Toxicity of Heavy Metal ions on Plants: Monitoring with an Amino Acids Assay 

      Pintilie, Olga; Zaharia, Marius; Tudorachi, Lucia; Băncilă, Sabina; Drochioiu, Gabi; Sandu, Ion (Universitatea "Dunărea de Jos" din Galați, 2014)
      In order to emphasize modifications on living organisms resulted from interaction with heavy metals, we applied a simple, sensitive, quick, inexpensive and reproducible method. It evaluates modifications through determining ...

    • Energetic and Exergetic Efficiencies of Biomass Gasification Processes 

      Tasma, Daniela; Panait, Tănase; Teodoru, Alexandrina; Rolea, Georgiana G. (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      A promising way to use biomass for the production of heat, electricity and other biofuels is through biomass gasification. In the gasification process, the chemical energy of the solid fuel is converted into the chemical ...

    • Energy Consumption Assessment in the Water Treatment Process, Bacau City Case Study 

      Fabian, Florina; Nedeff, Valentin; Bârsan, Narcis; Moșneguțu, Emilian (Universitatea "Dunărea de Jos" din Galați, 2017)
      In the national and international context, two general concerns revolve around water treatment processes. First of all, we talk about energy efficiency and environmental compatibility in the water treatment plants that ...

    • Energy Disequilibrium Effects on Heat Treatment Equipment 

      Cojocaru, Mihai; Drugă, Leontin; Tudose, Florică; Dragomir, Daniela; Toader, Gheorghe (Universitate "Dunărea de Jos" din Galați, 2016)
      The differences found between heat fluxes in different areas of the heat treatment equipment workspace, due to energy disequilibrium or due to improper positioning of loading, can cause non-uniform temperatures and heat ...

    • Environmental Risk Assessment for Thermal Power Plants 

      Radu, Tamara (Universitatea "Dunărea de Jos" din Galați, 2015)
      Thermal power plants still represent an important source of energy both in Romania and in Europe. Risks on the environment are primarily generated by the noxae generated from combustion of fossil fuels, namely: noxious ...

    • Environmental Risks Assessment by Qualitative and Quantitative Methods 

      Radu, Tamara (Universitatea "Dunărea de Jos" din Galați, 2016)
      The paper presents qualitative and quantitative methods, applicable on environmental risks, and conditions of application. The principles of the two classes of risk assessment methods and the advantages and disadvantages ...

    • Establishing of Rolling-Friction Coeffocient, for Hertzian Contacts Between Steel Balls and Different Kinds of Thermochemical Treated Steel Surfaces 

      Munteanu, Daniel (Universitatea "Dunărea de Jos"din Galați, 2005)
      It is known that for the ball displacement guide paths, the necessary startmoving force of the mobile half-couple is higher than the displacement-motion keeps force.Within the frame of this work, it has been designed and ...

    • Establishing the Constitutive Law of a CrMo Alloyed Steel 

      Cănănău, Nicolae; Alexandru, Petrică; Gurau, Liviu; Gurău, Gheorghe (Univrsitatea "Dunărea de Jos" din Galați, 2009)
      The paper shows the results of the researches for establishing the equation of the deformation behavior of alloyed steel with chromium and molybdenum. The behavior law is established in the experimental way, using the ...

    • Establishing the Rolling-Friction Coefficient for Different Contacts Between Balls and Termochemicallly Treated Steel Rolling Paths 

      Munteanu, Daniel; Pârv, Luminița (Universitatea "Dunărea de Jos" din Galați, 2014)
      Within the frame of this work, the influence of four very well-known and often used thermochemical treatments (carburizing, carbonitriding, nitriding and nitrocarburizing) of steel rolling paths applied on rolling-friction ...

    • Estimation of the Metallurgical Industry Impact on the Environment 

      Ciurea, Aurel; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2005)
      Objectively, the ecosystem in its development and working implies the accumulations on of some nonconcordances. Summing these disfunctions without taking into consideration their attenuation, may lead to producing, achieving ...

    • Evaluated Work System and Environmental Risk for a Worker in Drilling for Methane Gas 

      Dragomir, Ștefan; Bordei, Marian (Universitatea "Dunarea de Jos" din Galați, 2015)
      Improving the safety and health at work is important not only in terms of human view, in order to reduce possibilities of accident to workers, but also as a way to ensure the success and durability work for a worker in ...

    • Evaluation of the Occupational Risk Associated to Work Environment in Ferrous Metallurgy 

      Radu, Tamara; Ciocan, Anișoara (Universitatea "Dunărea de Jos" din Galați, 2013)
      Work environment present risk factors due to chemical pollution of ambient air with dust, smoke, fumes, vapors, mists and gases. Moreover physical risk factors (related to noise, lighting, temperature, vibration, humidity, ...

    • Evaluation of the Sonic System Efficiency for Raw Water Treatment 

      Cîrnu, Carmen; Bordei, Marian; Ciurea, Aurel (Universitatea "Dunărea de Jos' din Galaţi, 2012)
      Water pollution is defined as the change in the water composition that is harmful to human health, unsuitable for economic use or reactive and that can cause damage to the aquatic flora and fauna. In the appreciation of ...

    • Evolution of Copper Microstructure Subjected to Equal Channel Angular Pressing 

      Gurău, Carmela; Gurau, Gheorghe (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      This paper aims to study bulk severe plastic deformation processes capable to produce ultrafine grain and also nanostructured 3D materials, interesting for processing in current industry. Samples of copper alloy were ...