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Afișează articolele 131-140 of 586
Research for Realize the Configuration of Wind Energy Turbine
(Universitatea "Dunărea de Jos" din Galați, 2008)
For already quite some time, the word energy has received a somewhat negative
connotation. Some circles want to make us believe that energy is something that one
should have disgust for; a necessary evil that should be ...
The Modern State of Works in Field of Electron-Beam Technology of Melting and Evaporation of Metals and Non-Metals in a Vacuum
(Universitatea "Dunărea de Jos' din Galați, 2008)
In developing of new processes for growing metal (composite) films, the main
attention is given to controlling the metal vapour flows: through energy state of the
condensing particles, their molecular composition, ...
Structure Effects Over Behavior of Graphite Gray Iron in Running
(Universitatea "Dunărea de Jos" din Galați, 2008)
The work aims at emphasizing the structure changes of graphite gray iron, as a
result of make-casting conditions and their effects over behavior in running of
several cast items. Researches consisted of complex ...
Vaporisation of the Metallic Bath Component During Refining in Oxygen Converter
(Universitatea "Dunărea de Jos" din Galați, 2008)
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 ...
The Study of Metal-old Wood Interactions Under the Influence of Pedological Factors
(Universitatea "Dunărea de Jos" din Galați, 2008)
In the manufacture of wood objects, for binding and strengthening were used
nails, cramps and other metallic elements, which in the archaeological site suffered
degradation and deterioration processes, specific to ...
Surface Hardening Over 38MoCrA109 Steel by Yag:Nd Pulse Laser
(Universitatea "Dunărea de Jos" din Galați, 2008)
Laser offers unique capabilities for high energy concentrations at small
surfaces. Factors that have influences over interactions between laser beam and
steel surfaces have very high control. Pulse laser YAG:Nd is usually ...
Physical-Chemical Properties (Cu-Sn) -Mo Composite Materials
(Universitatea "Dunărea de Jos" din Galați, 2009)
The article is devoted to the study of corrosive and thermal stability of
materials composition on the basis of copper, obtained by the EB-PVD method.
It is shown in this work that corrosion of (Cu-Sn)–Mo composites have ...
Characterization of Thick Hard Layers with ni-Cr-B-Fe-Al Alloy Obtained by Laser Cladding
(Universitatea "Dunărea de Jos" din Galați, 2009)
To increase the resistance to wear and corrosion of the surface layers made
from steel with 0.45% C, multilayer deposition was tested by injection of powder
with chemical composition of 8.9% Cr, 4.5% Fe, 5.1% B, 2, 4% ...
Studies Regarding Nickel Electrodeposition from Watts bath with Addition of Polyvinylpyrrolidone and Sodium Saccharine
(Universitatea "Dunarea de Jos" din Galați, 2009)
This paper is based on some studies about the influence of
polyvinylpyrrolidone (PVP) and sodium saccharine as far as concern their influence
on the nickel electroplating processes from Watts bath. PVP is a wetting ...
EDX Analysis of Laser Cladding Layers with Ni-Cr-B-Fe-Al Alloy
(Universitatea "Dunărea de Jos" din Galați, 2009)
Multilayer cladding by injection of powder with 8.9% Cr, 4.5% Fe, 5.1% B,
2.4% Al, 0.6% Cu, Ni rest as chemical composition, in melted bath by a continuous
wave CO2laser connected to x-y-z coordinate table was tested in ...