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Afișează articolele 478-497 of 552
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The Different Practical Application of Niobium Carbide Coatings Elaborated by CVD Process
(Universitatea "Dunărea de Jos" din Galați, 2016)In this paper, the different application of niobium carbide coatings onto hard carbide substrate was investigated using scanning electron microscope (SEM), Xray diffractometer (XRD) and micro-hardness. The paper conducted ... -
The Dynamic Simulation for a Cold Rolling Mill Machine
(Universitatea "Dunărea de Jos" din Galați, 2016)For a cold rolling mill machine that represents a mechanical system, the dynamics problems may be solved by using the differential equations of their movement. We must consider all the connections and couplings for the ... -
The Eco-Efficiency of Recycling Organic Waste for Agriculture Purposes
(Universitatea "Dunarea de Jos" din Galați, 2016)One of the problems of the cities is the raising of household waste, with polluting effects on the environment. On the other hand, in agriculture, through specific activities necessary to ensure food, fertilizers are ... -
The Electromagnetic Proprieties of Hybrid Composites
(Universitatea "Dunărea de Jos" din Galați, 2015)This research investigates the electromagnetic behaviour of hybrid composites with heterogeneous epoxy matrix. The hybrid composites were formed by the wet lay-up method and were made of three types of simple plain fabrics ... -
The Evolution of the Characteristics of Mechanical Resistance for the Nitro-Carburized Treated Steel, After Thermo-Magnetic Treatment
(Universitatea Dunărea de Jos" din Galaţi, 2014)The aim of the research was to study the evolution of the characteristics of mechanical resistance for one type of steel. The material was subjected to the thermo-chemical (nitro-carburized treatment in plasma) treatment ... -
The Importance of Using Membranes in Seawater Desalination as a Result of Excessive Exploitation of Water Sources
(Universitatea "Dunărea de Jos" din Galați, 2017)This paper is a detailed study of the need to find and implement new solutions for water filtration and the promotion of modern techniques that are more effective than traditional methods. As a result of extension waste ... -
The Influence of Cold Rolling on the Mechanical Characteristics for Drawing Steels
(Universitatea "Dunărea de Jos" din Galaţi, 2008)The paper presents the changes of the mechanical and technological characteristics of steel for deep drawing, cold rolled and recrystallization heat treated. The research was conducted on samples taken from cold rolled ... -
The Influence of Cold Rolling on the Microstructure for Drawing Steels
(Universitatea "Dunărea de Jos" din Galați, 2007)The paper presents the structural changes that appeared in steel for deep drawing, as a result of cold rolling and of recrystallization thermal treatment. The research was conducted on samples taken from the rolled strap, ... -
The Influence of Different Coatings on the Grafhite Degeneration in the Superficial Layer of Iron Castings
(Universitatea "Dunărea de Jos" din Galați, 2014)The main objective of this experimenal reserch is to investigate new possibilities for reducing the graphite degeneration phenomenon in the superficial layer of iron castings. For the experiment, a spheroidal graphite ... -
The Influence of Moisture on Thermal Conductivity for Building Materials
(Universitatea "Dunărea de Jos" din Galați, 2017)The purpose of the study is to determine the influence of moisture on thermal conductivity for a range of building materials. A series of building materials and insulation materials have a porous, fibrous or granular ... -
The Influence of Polarization Tension of the Grading Over thin Layer Properties of TiN Deposed Through PDV Method
(Universitatea "Dunărea de Jos" din Galați, 2006)The deposits of tough thin layers on pieces and tools through PDV method knew a permanent and constant spreading owing to the great applicability of the resulting coatings which make that the thin layer deposit from the ... -
The Influence of Speed Cooling on Some Properties of Laminated Steel
(Universitatea "Dunărea de Jos" din, 2016)This study presents a possibility to predict the connection between the cooling regime and the properties of steel. An important factor to enhance the properties of steel is the speed of the cooling regime. To be in ... -
The Influence of Steam Treatment on Mechanical Properties and Abrasive Wear Behavior of Sintered P/M Steels
(Universitatea "Dunărea de Jos" din Galaţi, 2012)In this paper is a study of the influence of steam treatment on sintered P/M steels, for three different types of powder. The abrasive wear of steam-treated sintered iron is analysed by abrasion tests. The specimens were ... -
The Influence of the Carbon Content on the Depth of the Carbonitrurat Layer in Fluidized Layer for 1C15, 1C25 and 1C45 Steels
(Universitatea "Dunărea de Jos' din Galați, 2016)This paper presents the experimental research of carbonitriding thermochemical processing in fluidized layer performed on some samples of carbon steel with different carbon contents, the fluidized layer being made up of ... -
The influence of the physical-Chemical Factors on the Distribution of Heavy Metals in the Delta Ecosystems
(Universitatea "Dunărea de Jos" din Galați, 2015)Recognized to the influence of micropollutants, heavy metals represented on the ecological status of surface waters, including delta ecosystems, the paper aims to study the impact of environmental factors (temperature, ... -
The Influence of the Steel's Surface Quality on the Electroless Ni-P Coatings
(Universitatea "Dunărea de Jos" din Galaţi, 2015)The method of autocatalytic reduction coating assures a precise reproduction of the coated surface. This is an advantage when the support surface has a complex geometry but also becomes a disadvantage because it requires ... -
The Influence of the Thermomagnetic Treatments on the Hardness Number of Steels and the Superficial Layers Nitrided Durability
(Univeritatea "Dunărea de Jos" din Galați, 2005)Two types of steels subjected to a nitriding thermo-chemical treatment after thermomagnetic treatments. The structural aspects into superficial layer of these steels are studied during friction process by using of an ... -
The Influence of Waste Composition on the Pumping System Corrosion
(Universitatea "Dunărea de Jos" din Galați, 2017)Wastewater piping systems in urban agglomerations or industrial areas have problems with the wear and tear of equipment and water transport pipelines used. The problems are related to hydromechanics wear and corrosion ... -
The Laboratory Experiments Regarding the Intercritical Heat Treatments Applied an the Low-Alloyed Steel
(Universitatea "Dunărea de Jos' din Galați, 2006)The paper presents the research results regarding the influence of the intercritical thermal treatments carried out on some hypoeutectoid steel castings. The purpose of this research at the laboratory scale is to ... -
The Level of Noise Pollution in University Campuses Administered by the University of 1 December 1918 in Alba Iulia
(Universitatea "Dunărea de Jos" din Galați, 2018)Sound pollution is becoming a major problem because of multiplying sources of noise. In this study, I will present the results of the noise measurements carried out in the four campuses of the 1 Decembrie 1918 University ...
