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Afișează articolele 1251-1260 of 1945
Researches Regardingbthe Thermomechanical Treatments Influence on the Structure and Characteristics of the Aluminium Alloys for Aeronautics
(Universitatea "Dunărea de Jos" din Galați, 2005)
The laboratory experiments were made on the two aluminium alloyed qualities
used for aeronautical industry. More working conditions of the intermediary (PTMI)
and finally (PTMF) thermomechanical treatments were used on ...
The Use of Systems Analysis in Environmental Engineering
(Universitatea "Dunărea de Jos" din Galați, 2005)
The depletion of energy resources has been of primary concern in the `70s
and `80s. In recent years, the decline of the environment due primarily to our
energy-related activities has become severe and raises serious ...
Researches Regarding Improvement of the Fatigue Limit by Heat Treatments of the Al-Alloys for Aeronautics Industry
(Universitatea "Dunărea de Jos" din Galați, 2005)
The laboratory experiments were made on the two aluminium alloyed qualities
used for aeronautical industry. The structure and mechanical characteristics were
analyzed and the gotten results were compared using those two ...
Researches Regarding the Rolling of the Sinterized Metallic Powders Strips
(Universitatea "Dunarea de Jos" din Galați, 2005)
This paper work is distinguishing the size modification of those two
material layers gotten by the bimetallic strip rolling, joined by the sintering. The
iron powders sediment was achieved on the steel strip backing. ...
Mathematical Modelling of Steel Continuous Casting Hydrodynamics (1)
(Universitatea "Dunărea de Jos" din Galați, 2006)
The quality increase of steel continuous casting and a reliability indices of
afferent installations imposes the automation systems adoption of machines of
continuous casting of steel.
In this paper enters original ...
On the Kinetics of Sol Gel Al:ZnO thin Films Crystallization on Silicon Substrate
(Universitatea "Dunărea de Jos" din Galați, 2006)
Recently, there is a growing interest in applying ZnO thin films on silicon buffer
substrates for p-n junction devices, optical wave guide, etc.
A sol gel process is very attractive technique for obtaining oxide thin ...
Some Aspects Regarding the Elaboration of Multiple precessional Gear Theory and Modern Manufacturing Technology
(Universitatea "Dunărea de Jos" din Galați, 2006)
The engineering complex study of the triad “gear-technology-transmission” has
permitted to elaborate a new type of precessional transmissions with multicouple
gear. In this paper, the authors present the mathematic model ...
Protective and Decorative Vacuum's Coatings on Wares of Artistic Castings
(Universitatea "Dunărea de Jos" din Galați, 2006)
The problem of environmental protection is extraordinarily important, and its
actuality will increase with every year. In this aspect, processes of depositing of
coatings in vacuum have got serious advantages before ...
Research About the Vibration Parameters for a Cold Rolling Mill Machine
(Universitatea "Dunărea de Jos" din Galați, 2006)
By using the equipments of vibration measurement we can fight against the
damages (strip undulation and thickness variation on the length) who is show in
while of mill work. The amplitude of vibration parameters determine ...
Surface Hardening of 40Cr10 steel After Short Time Nitriding in Fluidized Bed
(Universitatea "Dunărea de Jos" din Galați, 2006)
The paper is based by nitriding in fluidized bed experiments over laboratory
plant. Fluidization applications are characterized by high values of mass and heat
transfer coefficients. For experiments were used 40Cr10 ...