Căutare Fascicula IX după Titlu

Afișează articolele 470-489 of 552

    • The Chemical and Metallurgical Analysis of Cooper-Based Shape Memory Alloys 

      Achiței, Dragoș Cristian; Minciună, Mirabela Georgiana; Vizureanu, Petrică (Universitatea "Dunărea de Jos" din Galați, 2015)
      The paper presents some aspects on the thermo-mechanical fatigue of shape memory alloy, a documentary synthesis of their industrial applications and chemical aspects concerning the use of these alloys in biomedical applications

    • The Computation of the Calended Rolls Deflection Using the Stone-Gaevski Formulae 

      Florescu, Daniela; Florescu, Iulian (Universitatea "Dunărea de Jos" din Galați, 2005)
      This paper presents new models for the change of the internal configuration of the paper calender rolls with extension to those for plastics and rubber, and the deflection calculation procedure using Stone-Gaevski formulae.

    • The Consequence of Heavy Metals Impact on Primary Teeth 

      Zmarandache, Diana Daniela Daciana; Stanciu, Ioana-Andreea; Luca, Rodica; Farcaşiu, Cătălina (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      Since the metals deposited in the teeth during formation and mineralization processes are to a large extent retained, human teeth receive a considerable attention as indicators of heavy metal exposure. The objective of ...

    • The Conservability of Old Wood at the Contact with Metallic Structural Components from Artifacts 

      Sandu, Ion; Vasilache, Viorica; Hayashi, Mikiko; Vrânceanu, Narcisa; Ciocan, Adelina; Sandu, Andrei Victor (Universitatea "Dunărea de Jos" din Galați, 2008)
      The paper presents the impact of metallic pieces being in contact with wood, as structural elements, used in obtaining artifacts. The paper studies, based on old samples, the reciprocal effect obtained at the wood-metal ...

    • The Correlation Between Mechanical Characteristics and Technological Parameters in Heat Treatments Applied to Moulding Aluminium Like at Si5Cu1 

      Nejneru, Carmen; Gălușcă, Dan-Gelu; Carabet, Roxana-Gabriela; Achiței, Dragoș; Cimpoeșu, Nicanor (Universitatea "Dunărea de Jos" din Galați, 2006)
      The paper contains an experimental study of colligating the technological parameters of the artificial aging operation namely time and soaking temperature with hardness and mechanical strength properties gained after the ...

    • The Corrosion Behaviour of Aluminum Alloy 2024-T3 in Acidic Environments 

      Hotea, Vasile; Juhasz, Jozsef; Pop, Elena; Iepure, Gheorghe; Pop, Aurica (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      This research aimed at analysing the acidic corrosion behavior of aluminum alloy 2024-T3 commonly used in the aerospace. We study the variation of corrosion rate with immersion time at different values of H2SO4 concentration ...

    • The Decreasing of the Energetic Losses at a Coke Cooling Plant 

      Vasiliu, Adrian; Năstase, Gina; Beglet, Natalia; Mirea, Vasile (Universitatea "Dunărea de Jos" din Galați, 2006)
      The paper presents an energetic and technologic analysis of the metallurgic coke dry cooling plant (CDCPO) operating, and also the optimization of this process in the case of an industrial plant, existing in the Steel ...

    • The Dental Technology in Art Foundry 

      Florea, Gheorghe; Doniga, Ana; Florea, Bogdan (Universitatea "Dunărea de Jos" din Galaţi, 2012)
      The paper presents results of a study undertaken to implement the dental casting technique of small parts characterized by extremely complex drawings of surfaces and thicknesses reduced specific objects. During the study ...

    • The Different Practical Application of Niobium Carbide Coatings Elaborated by CVD Process 

      Constantinescu, Stela (Universitatea "Dunărea de Jos" din Galați, 2016)
      In this paper, the different application of niobium carbide coatings onto hard carbide substrate was investigated using scanning electron microscope (SEM), Xray diffractometer (XRD) and micro-hardness. The paper conducted ...

    • The Dynamic Simulation for a Cold Rolling Mill Machine 

      Dragomir, Ștefan (Universitatea "Dunărea de Jos" din Galați, 2016)
      For a cold rolling mill machine that represents a mechanical system, the dynamics problems may be solved by using the differential equations of their movement. We must consider all the connections and couplings for the ...

    • The Eco-Efficiency of Recycling Organic Waste for Agriculture Purposes 

      Banacu, Cristian; Olaru, Bianca Georgiana (Universitatea "Dunarea de Jos" din Galați, 2016)
      One of the problems of the cities is the raising of household waste, with polluting effects on the environment. On the other hand, in agriculture, through specific activities necessary to ensure food, fertilizers are ...

    • The Electromagnetic Proprieties of Hybrid Composites 

      Bîrsan, I. G.; Bunea, Mariana; Mihu, G.; Cîrciumaru, A. (Universitatea "Dunărea de Jos" din Galați, 2015)
      This research investigates the electromagnetic behaviour of hybrid composites with heterogeneous epoxy matrix. The hybrid composites were formed by the wet lay-up method and were made of three types of simple plain fabrics ...

    • The Evolution of the Characteristics of Mechanical Resistance for the Nitro-Carburized Treated Steel, After Thermo-Magnetic Treatment 

      Papadatu, Carmen Penelopi (Universitatea Dunărea de Jos" din Galaţi, 2014)
      The aim of the research was to study the evolution of the characteristics of mechanical resistance for one type of steel. The material was subjected to the thermo-chemical (nitro-carburized treatment in plasma) treatment ...

    • The Importance of Using Membranes in Seawater Desalination as a Result of Excessive Exploitation of Water Sources 

      Tătaru, Laurențiu; Nedeff, Valentin; Bârsan, Narcis; Lehăduș, Mirela-Panaite; Chițimuș, Dana-Alexandra (Universitatea "Dunărea de Jos" din Galați, 2017)
      This paper is a detailed study of the need to find and implement new solutions for water filtration and the promotion of modern techniques that are more effective than traditional methods. As a result of extension waste ...

    • The Influence of Cold Rolling on the Mechanical Characteristics for Drawing Steels 

      Potecaşu, Octavian; Potecaşu, Florentina; Alexandru, Petrică; Radu, Tamara (Universitatea "Dunărea de Jos" din Galaţi, 2008)
      The paper presents the changes of the mechanical and technological characteristics of steel for deep drawing, cold rolled and recrystallization heat treated. The research was conducted on samples taken from cold rolled ...

    • The Influence of Cold Rolling on the Microstructure for Drawing Steels 

      Potecașu, Florentina; Potecașu, octavian; Drugescu, Elena; Alexandru, Petrică; Istrate, Miltiade; Hanganu, Doru (Universitatea "Dunărea de Jos" din Galați, 2007)
      The paper presents the structural changes that appeared in steel for deep drawing, as a result of cold rolling and of recrystallization thermal treatment. The research was conducted on samples taken from the rolled strap, ...

    • The Influence of Different Coatings on the Grafhite Degeneration in the Superficial Layer of Iron Castings 

      Anca, Denisa Elena; Panciu, Elena; Chișamera, Mihai (Universitatea "Dunărea de Jos" din Galați, 2014)
      The main objective of this experimenal reserch is to investigate new possibilities for reducing the graphite degeneration phenomenon in the superficial layer of iron castings. For the experiment, a spheroidal graphite ...

    • The Influence of Moisture on Thermal Conductivity for Building Materials 

      Coman, Gelu; Uzuneanu, Krisztina; Paraschiv, Simona (Universitatea "Dunărea de Jos" din Galați, 2017)
      The purpose of the study is to determine the influence of moisture on thermal conductivity for a range of building materials. A series of building materials and insulation materials have a porous, fibrous or granular ...

    • The Influence of Polarization Tension of the Grading Over thin Layer Properties of TiN Deposed Through PDV Method 

      Gaiță, Mihai; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2006)
      The deposits of tough thin layers on pieces and tools through PDV method knew a permanent and constant spreading owing to the great applicability of the resulting coatings which make that the thin layer deposit from the ...

    • The Influence of Speed Cooling on Some Properties of Laminated Steel 

      Papadatu, Carmen Penelopi; Bordei, Marian (Universitatea "Dunărea de Jos" din, 2016)
      This study presents a possibility to predict the connection between the cooling regime and the properties of steel. An important factor to enhance the properties of steel is the speed of the cooling regime. To be in ...