Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați: Recent submissions
Afișează articolele 321-340 of 1845
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Vibrations and Torque Monitoring Processes for a Cold Rolling Mill
(Universitatea "Dunărea de Jos" din Galaţi, 2012)This paper presents researches made on a system of monitoring and other parallel systems for diagnose used in a cold rolling mill. The first system (with specific measurement sensors) is an online vibration monitoring ... -
Characterisation of CVD Niobium Carbine Coatings on Hard Carbide Substrate
(Universitatea "Dunărea de Jos" din Galaţi, 2012)Hard coatings are often used for mechanical properties such as wear and friction resistance. The corrosion behaviour may also be an important criterion for industrial applications of these coatings. In this paper, the ... -
Obtaining and Characterizing TIN-LEAD Coatings on Steel Band
(Universitatea "Dunărea de Jos" din Galaţi, 2012)The experimental research was at the basis of the hot immersion coating technology with Sn-Pb alloy of the steel bands presented in the study. The characterization of these layers was achieved through microscopic analyses ... -
Composition of Syngas Produced by Gasification of Agricultural Residue Briquettes
(Univesitatea "Dunărea de Jos" din Galaţi, 2012)This paper summarizes the results of an experimental study on the gasification of briquettes made from different agricultural residues. There were investigated the effects of operating parameters such as temperature and ... -
Integrated Analytical Study for the Somes Metalic Artefact Discoveri in IBIDA SITE, Romania
(Universitatea "Dunărea de Jos" din Galați, 2012)The paper presents the results of the analyses conducted using the SEM-EDX and micro-FTIR co-assisted techniques, on several metallic artefacts unearthed during the excavations at the (L)Ibida archaeological site in Slava ... -
Modern approaches in Design Optimization of Parts and the Development Trend of Surface Treatments
(Universitatea 'Dunărea de Jos"din Galați, 2012)This paper summarizes the surface engineering technologies having a substantial contribution to increasing operational performance of the parts as well as current trends in the implementation of surface processing ... -
A test for Rapid Tribological Characterization of Bearing Steels
(Universitatea "Dunărea de Jos" din Galați, 2012)In this paper is a study the influence of the material and heat treatment on the changes of the fine structure parameters of the superficial layer of triboelements during the first cycles of rolling contact process. The ... -
Copper Plating Corrosion Study in Certain Environments
(Universitatea "Dunărea de Jos" din Galați, 2013)Copper plating was performed on nickel substrate by means of the potentiostatic electrodeposition method from a sulphate electrolyte solution. The copper coatings morphology was studied by means of the optical and ... -
Reducing the Zinc Emissions by Upgrading of Steel Scraps Quality
(Universitatea 'Dunărea de jos" din Galați, 2013)The steel production is one of the major sources of heavy metals emissions to the environment. There are several possibilities for prevention and minimization of these pollutants. Emission reduction measures focus on ... -
Setting the Optimum Angle of Solar Collectors Settlement
(Universitatea "Dunărea de Jos" din Galați, 2013)The performance of any solar energy system depends very much on the availability of solar radiation and the orientation of solar collectors. Solar collectors need to be inclined at the optimum angle to maximize the ... -
Electrodeposition and Characterization of Ni-Si Nanocomposite Coatings
(2013)In this paper is presented morphological aspects and corrosion behaviour of composite coatings having nickel as metal matrix and silicon as dispersed phase obtained during electrodeposition process of nickel. Silicon ... -
Evaluation of the Occupational Risk Associated to Work Environment in Ferrous Metallurgy
(Universitatea "Dunărea de Jos" din Galați, 2013)Work environment present risk factors due to chemical pollution of ambient air with dust, smoke, fumes, vapors, mists and gases. Moreover physical risk factors (related to noise, lighting, temperature, vibration, humidity, ... -
Radial Forging Machine. Technology for Axle Type Parts
(Universitatea "Dunărea de Jos" din Galați, 2013)This paper presents three types of radial forging machines to produce the axle type pieces. The new types of radial forging machines are presented cinematically. The movement of the deformation tools at these types of ... -
Effect of Oxidation on Spectrophotometric and Rheological Parameters of Corn Oil
(Universitatea "Dunărea de Jos" din Galați, 2013)The aim of this study is the viscosity’s evolution depending on the temperature and the shear rate and the analysis of the transmittance spectra of the oxidized corn oil. Corn oil was oxidized of the temperatures of ... -
Optimization of Thermomechanical Processing of Some Aluminum Alloys by Dimensional Interpolation Method Using the Matlab
(Universitatea "Dunărea de Jos" din Galați, 2013)This paper presents results of research on optimization of thermomechanical treatment applied to an alloy of the Al-Zn-Mg-Cu system, used in the aviation industry.Optimizing thermomechanical treatment process is based ... -
Research Concerning the Influence of Laser Cladding on the Operating Charactersitics of the Surface Layers Obtained from High-Speed Steel Powder
(Universitatea "Dunărea de Jos" din Galați, 2013)The paper presents the corrosion behavior of laser cladding layers in 0.5 M NaCl along with a durability test, compared with samples made of clasically hardened HS6-5-2 steel. The higher characteristics of the laser ... -
Research Regarding on Work Safety in Making Steel at LD Converted
(Universitatea "Dunărea de Jos" din Galați, 2013)This paper presents the tasks and work environment of workers working at the LD converter. Risk factors identified and assessed and suitable measures for reducing or eliminating them, resulting a safer environment for ... -
Particular Aspects Concerning Instability at Interface LCAK Steel SLAG (CaO-Al2O3) Due to Transfer of Sulphur, Evaluated Using the Model Reichenbach-Linde Adapteda
(Universitatea "Dunărea de Jos" din Galați, 2013)Based on the model of Reichembach and Linde, adapted to the interface in the system LCAK steel-(CaO-Al2O3) slag at temperature 1873.15K, it is shown that transfer of sulphur from steel to slag could promote interfacial ... -
Research Regarding Work safety in the Loading Zone Furnace
(Universitatea "Dunărea de Jos" din Galați, 2013)The loading zone furnace is the place where we find work belt conveyors, vibrating screens and feeders, 5-ton hoist, cyclone, scale hoppers, troughs for routing and carriage of waste materials. The work consists in ... -
Dust Emissions from an Integrated Steel Mill in Correlation with Human Exposure and their Adverse Health Effects
(Universitatea "Dunăreade Jos" din Galați, 2013)Many of the metallurgical operations contribute to generation of the dust emissions if these are not properly controlled and managed. The relevant sectors as important sources for airborne dust are: coke oven plant, ...
