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Afișează articolele 331-340 of 586
Metal Heating Furnace with Flue Gas Condensation. A Thermoeconomic Analysis
(Universitatea "Dunărea de Jos" din Galaţi, 2014)
The heat treating furnaces are one of the largest energy consumers in the
manufacturing sector and therefore many techniques to improve their energy
efficiency have been developed. One of them focuses on the recovery of ...
Nanocomposite Coatings Obtained by Electro-Co-Deposition of Inert Particles with Cobalt-a Review
(Universitatea "Dunărea de Jos" din Galaţi, 2012)
The paper focuses on review investigations of electrodeposition processes of
metallic coatings containing dispersed nanosized particles. The nanosized particles,
suspended in the electrolyte by agitation and/or use of ...
The Consequence of Heavy Metals Impact on Primary Teeth
(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 ...
Modification of Surface Properties by Laser Cladding with Ni-Cr-B-Fe-Al Alloy
(Universitatea "Dunărea de Jos" din Galaţi, 2012)
The paper is focused on modification of surfaces properties by laser cladding.
To follow the corrosion behavior in different media of laser cladding layers made of
nickel based alloy Ni - Cr - B - Fe - Al. It was studied ...
Evaluation of the Sonic System Efficiency for Raw Water Treatment
(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
(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 ...
Electrochemical Behavior of Zinc Layers Passivated in Phosphate Solutions
(Universitatea "Dunărea de Jos" din Galaţi, 2012)
Phosphate conversion coatings are used on the galvanized steel. By forming a
thin protective film on the surface of the steels this treatment enhances corrosion
resistance. This paper presents studies on phosphate ...
Energetic and Exergetic Efficiencies of Biomass Gasification Processes
(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 ...
Comparison of the Efficiency of Three Types of Solar Collectors
(Universitatea "Dunărea de Jos" din Galați, 2012)
Solar energy is one of the most abundant resources energy available in the
world. Solar collectors have evolved in the last decades, but still they haven’t
reached very high efficiencies.
The collector efficiency is ...
Influence of Niobium as Microalloying element in 3%Si Steel grade for Electrical Industry
(Universitatea "Dunărea de Jos" din Galaţi, 2012)
The paper presents the results of the laboratory research on the chemical
composition and crystallographic texture in 3% Si steels and their influence on the
level of magnetic losses in the final sheet.
The magnetic ...