Căutare Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați după Titlu
Afișează articolele 569-588 of 1845
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Experimental Research of Reaction Force Produced by Coanda Nozzle
(Universitatea "Dunărea de Jos" din Galați, 2013-10-01)The paper presents research results of gas dynamics of Coanda nozzle, that is a key element of drones with jet propulsion. The jet propulsion Coanda drones allow you to quickly monitor the large areas in emergency situations: ... -
Experimental Research on Heating Behavior of Some Steels During Hot Metallurgical 1453 – 083X
(Universitatea "Dunărea de Jos" din Galați, 2014)The heating of steel semi-products in view of hot rolling process or heat treatments is achieved at the large scale in propulsion ovens for the increase of their deformability and to improving mechanical characteristics ... -
Experimental Research on Increasing the Durability of Cast ATCSi 5 Cu 1 Alloys for Sea Ships Through Heat Treatment
(Universitatea "Dunărea de Jos" din Galați, 2017)This paper presents an experimental research study on the utilization of complex heat treating on aluminum alloys in order to increase their durability. The practical usage of the studied aluminum alloys (more specifically, ... -
Experimental Research Regarding the evolution of Some parameters of the Superficial Layer in love Cycle Fatigue Process
(Universitatea "Dunărea de Jos" din Galați, 2007)The development of some mechanic engineering systems in, feasible to pressure vessels, aeronautics, ship building technology, requires a full investigation of the material features that are to be examined under a low ... -
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 Researches Concerning the Influence of the Oxynitrocarburizing Thermochemical Treatment Over the Structure and Corrosion Resistance of C40 Steel
(Universitatea "Dunărea de Jos" din Galați, 2009)The aim of the paper is to present the results of the experimental researches regarding the corrosion behaviour of C40 steel, thermochemical treated by oxidant nitrocarburizing at 570°C. The thermochemical treatment was ... -
Experimental Researches on the Constitutive Equation of Concrete Steel with Superior Characteristics
(Universitatea "Dunărea de Jos" din Galați, 2007)The plastic deformation behavior is defined by the function of the deformation strength according to the strain, strain rate and temperature as the factor of the deformation process. The behavior law establishes by the ... -
Experimental Researches on the Sound Absorption Composites Used for Public Worket Equipment
(Universitatea "Dunărea de Jos" din Galați, 2010)Decreasing of sound and vibration global level inside and/or outside the public works equipment’s cabin as well as the reduction the noise pollution or the pollution accounted by the vibration and mechanical shocks on ... -
Experimental Results at Modelling of the Flow and Deformation Fields at the Profiles Rolling
(Universitatea "Dunărea de Jos" din Galați, 2006)This paper presents the results for modeling of the rolling process based at the deformable continuous medium mechanics, the theory of field lines. The rolling of the profiles and plates may be evaluated as the plane ... -
Experimental Results of Bridgeless PFC Boost Converter
("Dunarea de Jos" University of Galati, 2010)This paper deals with the simulation and implementation of a bridgeless PFC boost converter. The Bridgeless PFC Boost Converter Circuit is analyzed, simulated and implemented. The circuit has advantages like reduced ... -
Experimental Shooting with Thor-1 Disruptor: New Type of Gas Device used to Neutralize improvised Explosive Devices
(Umiversitaea "Dunărea de Jos" din Galați, 2016)The paper presents experiments conducted with disruptor THOR-1, a new type of gas-dynamic device used to neutralize improvised explosive devices. Disruptor THOR-1 [1] was designed and practically built as a gas-dynamic device ... -
Experimental Studies Concerning Damage of Two Lubricant Greases in Severe Working Conditions
(Universitatea ”Dunărea de Jos” din Galați, 2006)In this paper certain results regarding behavior of two greases used in lubrication of rolling and rolling-sliding tribosystems are presented. For this aim, a specialised stand has been used. The experimental tests were ... -
Experimental Studies on Structure Profile of Cast Alumininum Alloys
(Universitatea "Dunărea de Jos" din Galați, 2005)This paper presents experimental studies regarding the behavior after heat treatment of two cast aluminum alloy. So, we selected a typical charge for studying the structure profile. The studies that we have done can ... -
Experimental Studies Regarding the Implementation Possibilies of a Quality Control System for Ceramic Products in Continuous Flux Production
(Universitatea "Dunărea de Jos" din Galați, 2009)In the current paper the authors studied the possibilities and limitations of a system intended to evaluate the quality of ceramic products directly on the production line. The system is based on a data mining specific ... -
Experimental Study of Friction Losses in Ball Screws
(Universitatea ”Dunărea de Jos” din Galați, 2009)In contrast with conventional sliding lead screws, ball screws with rolling friction between the screw and nut have high efficiency, accurate positioning and smooth, quiet operation at low friction that make this kind of ... -
Experimental Study of the Air-Jet Stem Generator
(Universitatea "Dunărea de Jos" din Galați, 2015)Applications of sound and ultrasound air-jet stem generators became of great interest in heat and power engineering, in environmental protection, in the production of heat insulating material, extraction of poor uranium ... -
Experimental Study on Roughness Parameters Variation, During Running – in Period, for a Cylinder-Plane Friction Couple
(Universitatea ”Dunărea de Jos” din Galați, 2008)The studies of various lubrication problems have been recently focused on atypical geometrical and operating conditions (extreme conditions). Among these cases, one can find analyses of HD bearings having surface macroscopic ... -
Experimental Study on Roughness Parameters Variation, During Running – in Period, for a Cylinder-Plane Friction Couple
(2008)The studies of various lubrication problems have been recently focused on atypical geometrical and operating conditions (extreme conditions). Among these cases, one can find analyses of HD bearings having surface macroscopic ... -
Experimental Testes in Oven Equipped with Burner Sonoc Generator Gazodynamic
(Universitatea "Dunărea de Jos" din Galați, 2015)Burning is the oldest technology of humanity, and it has been used for more than a million years.Combustion plants must be as efficient, to achieve a more complete combustion, to have a higher efficiency and an emission ... -
Experimental Validation of a New Dispersion Method of Additive Particles into Polymer Matrix Composites
(Universitatea ”Dunărea de Jos” din Galați, 2009)The general expected properties of the composite materials are the result of the efficient reinforcement distribution of nanometric particles, one of the most important methods considers their dispersion. The aim of this ...
