Căutare Fascicula IX după Titlu
Afișează articolele 158-177 of 552
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Experimental Reaearch of Sintered Porous Materials of Bronze Powders
(Universitatea "Dunărea de Jos" din Galați, 2005)Porous sample were fabricated by sintering of bronze ( Cu Sn10) with different particle size range. The paper investigates the influence of the particle size distribution, temperature and sintering time on the structural ... -
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 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 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 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 ... -
Experiments on Ballistic Tests for Improving Performance of a Neutralizing Gas Dynamics System
(Universitatea "Dunărea de Jos" din Galați, 2014)Neutralizing improvised explosive devices (handmade) by mechanical separation of the elements which are part of their composition can be achieved by the following methods: - generation of shock waves by means of the ... -
Experiments on Ballistic Tests for Improving Performance of a Neutralizing Gas Dynamics System
(Universitatea 'Dunărea de Jos" din Galaţi, 2014)Neutralizing improvised explosive devices (handmade) by mechanical separation of the elements which are part of their composition can be achieved by the following methods: - generation of shock waves by means of the ... -
Fabrication and Characterization of Cobalt/Iron Composite Coatings
(Universitatea "Dunărea de Jos" din Galați, 2013)Cobalt/iron composite coatings are used in micro-equipments due to their high magnetic saturation values and Curie temperatures, as magnetic nanoparticles capable of killing cancer cells, for magnetic data storage and ... -
Fabrication of Ultrafine Low Carbon Metallic Multilayer by Accumulative Roll Bonding
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The effect of grain refinements by Accumulative Roll Bonding (ARB) was investigated on low carbon steel. Optical microscopy (OM) and microhardness tests were used to check the phase changes and hardness before and after ... -
Fatigue Degradation of Materials as a Tool for Damage Assessment
(Universitatea "Dunărea de Jos" din Galați, 2008)Damage assessment of components or systems is strongly related to the way components fail. Thus, an appropriate understanding of failure degradation of components is necessary. Furthermore, most of the failures are related ... -
Fem Analysis of the Spur Gears Press-Rolling Proces
(Universitatea "Dunărea de Jos" din Galați, 2013)This paper presents the FEM (finite element method) analysis of the pressingrolling process, a new method for obtaining spur gears. Using symmetries, the 3D geometrical model was created for tools and for the initial ... -
Fuel Consumption Study for Auxiliary Engines that Equip an Oil Tanker
(Universitatea "Dunarea de Jos' din Galați, 2017)The paper deals with an oil tanker whose propulsion system with internal combustion engine during navigation was investigated. For a power plant with internal combustion engines we distinguish the subsystems: the internal ... -
Fuel Economy at the Heat Treatment Furnaces of Steel Cast Pieces
(Universitatea "Dunărea de Jos" din Galați, 2006)The paper presents a study made at the annealing furnaces for homogenization of cast pieces regarding the replacement of marsh gas with blast furnace gas, in a proportion of 100%. In this way an important economy of marsh ... -
Funcţional Model of Savonius Type Vertical Axis Wind Turbine With Periodic Coupling of Adjacent Vertical Blades
(Universitatea "Dunărea de Jos" din Galaţi, 2014)The field of HAWT (Horizontal Axis Wind Turbines) regarding the use of wind energy (WE) as a renewable energy source (RES) is well researched and the results are covering both the power range and efficiency. Deficiencies ...