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Afișează articolele 241-250 of 586
Effects Exerted by Slag Carried over from Converter in the Ladle on the Aluminum Assimilation
(Universitatea "Dunărea de Jos" din Galați, 2014)
In the present paper are shown aspects of the influence exerted by the some
less controlled parameters of BOF steelmaking, mainly of slag characteristics at
tapping. Following the necessities to control the steel ...
Siderurgy Slags Recovery in Building Industry
(Universitatea "Dunărea de Jos" din Galați, 2014)
During the metallurgical processes of iron and steel elaboration, besides the
basic products, it results a serious of secondary products (wastes) in high quantities
but with a high recycle – recovery potential, and their ...
Resesrches on the Production of Copper-Based Composites by Powder Metallurgy Methods
(Universitatea "Dunărea de Jos" din Galați, 2014)
The article presents how to obtain copper matrix composite with alloy
particles of NiCrBFeAl as complementary phase. The samples were obtained by
powder metallurgy methods using different percentages of the additional ...
Recycling of Cellulosic Waste in the Energy Sector
(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 ...
Structuras of the Eutectoid Zn-Al Alloy Obtained by Directed Solidification
(Universitatea "Dunărea de Jos" din Galați, 2014)
This work analyses the structure of the eutectoid Zn-Al based alloy
directionally solidified, with cooling rates ranging between 8.5-0.4 oC/sec. During
cooling, the temperature gradient in the liquidus zone, respectively ...
Geopolymers Obtained with Red Mud from Alumina Manufacturing
(Universitatea "Dunărea de Jos" din Galați, 2014)
Getting reusable aluminosilicate materials, based on the geopolymerization
reaction mechanism of some physical and mechanical material particular, has been
imposed in the recent years in building materials.
This paper ...
Silica thin Films Obtaining by Sol-Gel Dip Coating with Controlled Optical Properties
(Universitatea "Dunărea de Jos" din Galați, 2014)
Transparent oxide films are widely employed as antireflection or high
reflection coatings, band-pass filters and narrow-band-filters in various optical and
electronic devices. The performances of these devices are based ...
Aspects of Materials Decay Under Chemical Attack from the Leachate Treatment Plant of the Tirighina Waste Landfill
(Universitatea "Dunărea de Jos" din Galați, 2014)
Human society faces a number of major problems among which the
increasingly negative consequences of environmental pollution. The high uses rate
of the natural resources and the large amount of waste generated tend to ...
The Use of Ultrasound in the Treatment Process of Wastewater. A Reviuw
(Universitatea "Dunărea de Jos" din Galați, 2015)
In this paper, different types of ultrasound devices for the treatment process of
wastewater are presented. The use of ultrasound in treatment processes is a method
of perspective, an alternative to conventional methods. ...
Water-in-Diesel Emulsions as an Alternative Fuel for Diesel Engines. Part II: Performance of Diesel Engines Fueled with Water-in-Diesel Emulsions. A Literature Review
(Universitatea "Dunărea de Jos" din Galați, 2015)
This paper presents the recent advances of water-in-diesel emulsion fuel
studies, especially the impact of using this emulsion fuel to the performance and
emissions of diesel engine. Studies revealed that the onset and ...