Căutare 1993 -2018 după Data publicării
Afișează articolele 241-260 of 552
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Establishing the Constitutive Law of a CrMo Alloyed Steel
(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 ... -
Modelling, Operation and Control of Multiterminal DC Connection for Offshore Wind Farms
(Universitatea "Dunarea de Jos" din Galați, 2009)Renewable energy systems are tending to become more and more present in the energy market and wind power has already proven its potential. Wind parks of thousands of MW are planned to be place into sea faraway from the ... -
Waste Minimization by Reuse and Recycling
(Universitatea "Dunărea de Jos" din Galați, 2009)Recently, pollution prevention directs attention towards the elimination or reduction of undesired by- products within the production process itself before treatment. On the long term, pollution prevention through waste ... -
Reseaeches Regarding the Elements Loss Through vaporization During the Elaboration Process LD Converter
(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 ... -
Influence of Ph galvanic Baths on the Nickel Deposits
(Universitatea "Dunărea de Jos" din Galați, 2009)The influence of pH on cathodic and anodic current efficiency, surface quality and morphology of nickel deposit in the electrolyte solutions of the Watts bath type was investigated. Cathodic current efficiency of nickel ... -
Corrosion Behaviour of Tombac Used in Cult Objects Manufacturing
(Universitatea "Dunărea de Jos" din Galați, 2009)Corrosion of metals and metallic alloys is due to their thermodynamic instability in relation to their oxidation form. Corrosion tests performed in this work simulate the exposure conditions in different environments of ... -
Alumina Powder Properties Obtained by Neutralization Process of Sodium Aluminate
(Universitatea "Dunarea de Jos' din Galați, 2009)Today, the most production of alumina is used for aluminum production [1, 2] (metallurgy alumina), minor production of alumina is used for special purpose, as fire-resistant materials, electro porcelain and etc., and ... -
Mathematical Model Cooling Agglomeration Ferrius in Layer
(Universitatea "Dunărea de Jos" din Galați, 2009)Mathematical model is based on discretization agglomeration areas layer deposited on very small. The τ Δ cooling time and the elements of space and elements xi time relationship is discretization as volume control. Based ... -
Behavior of Ni/al2O3 Nanocomposite Thin Layers in Corroding Environment
(Universitatea "Dunărea de Jos" din Galați, 2009)This paper investigates the effects of adding alumina nanoparticles in the electrolyte bath on surface topomorphologies and structure of electrodeposited nickel. The influence on the corrosion process in NaCl solutions ... -
Experimental Research Regarding the Obtaining of Obtaining of Friction Elements
(Universitatea "Dunărea de Jos" din Galați, 2009)Friction materials are used as bimetallic friction elements, consisting of a friction material layer sintered on a steel backing. Using the electron microscopy techniques (microprobe analyzer) some of the diffusion ... -
Experimental Model for Pollutants Monitoring Into the Coke-Chemical Plant
(Universitatea "Dunărea de Jos' din Galați, 2009)The Coke-Chemical plants contribute heavily to producing and emitting in the atmosphere a big amount of polluting agents. Polluting emissions diminution and situating them within the international specific standards, ... -
Materials Used for Manufacturing Some Objects from 1600 Before Christ - 500 After Christ Period
(Universitatea "Dunărea de Jos" din Galați, 2010)The appearance and the spreading of metallic objects produced a profound social change. The early metallurgy included two ages: The Bronze Age and The Iron Age. The late Bronze Age is considered to be the most important ... -
Theoretical Study regargind the Flow Conditions for Alloys Through thin Channels
(Universitatea "Dunărea de Jos" din Galați, 2010)A common tool used to demonstrate the phenomenon of movement of liquids through thin channels is the capillary tube. When the lower end of the tube is placed vertically in a liquid (such as water), it forms a concave ... -
Electrodeposition and Characterization of Zinc-Cobalt Alloy Coatings
(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 ... -
Intercritical Thermomechanical Treatments Applied to the Steel Heavy Plates
(Universitatea "Dunărea de Jos" din Galați, 2010)This paperwork shows the laboratory experiments made on X60 and X65 steels with several intercritical thermomechanical treatment applications. Two variants were used: "down-up" thermomechanical treatment with heating and ... -
The Process Insolved in Making the Medals
(Universitatea "Dunărea de Jos" din Galați, 2010)This paper presents a method that was experienced in the laboratory to manufacture a medal. There are three general techniques used to make medals: repoussé, striking and casting. Serigraphy technique is the most chosen ... -
Sculpture, Extended Nature
(Universitatea "Dunărea de Jos" din Galați, 2010)The paper portrays some aspects that show how nature is implemented into the graphic values domain by confronting the physical image of the artistic subject. The article presents some rules that have marked over time the ... -
Time Analysis of King Mattehias the IST Sculptural Group
(Universitatea "Dunărea de Jos" din Galați, 2010)The paper presents a study on the degradation of the King Matthias I sculptural group caused by environment factors and influenced by the casting technology and by the assembling method. During this study, samples from ... -
Modelling and Numerical Simulation of the Atmospheric Dispersion of Pollutants from an Integrated Iron and Steel Complex-Part I
(Universitatea "Dunărea de Jos" din Galați, 2010)The Iron and Steel Complex processes handle, store and undertake important amounts of raw materials (iron ores, coals, etc.) energy, fuels, waste waters, slags and other different types of wastes. These activities have ... -
Coating of the Lasting Moulds with Hard Alloys
(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 ...
