http://arthra.ugal.ro/handle/20.500.14043/25830 Fri, 17 Apr 2026 22:02:32 GMT 2026-04-17T22:02:32Z http://arthra.ugal.ro/handle/20.500.14043/25840 Ni-P Coating on Steel Support by Electroless Method Radu, Tamara; Dobrea, Andreea Georgiana The autocatalytic reduction method (electroless method) was applied to obtain the Ni-P layers with different P contents. Nickel sulfate was used as nickel ion source and as reducing agent the sodium hypophosphite. The surface morphology, microstructure, layers thickness and corrosion resistance in acidic and basic environment were analyzed. The research results show a strong connection between layer characteristics and process parameters: pH and temperature. The analyzed layers show a high stability in 10% NaOH solution and different corrosion rates in HCl solutions (1 N and 0.5 N) depending on the phosphorus content in the layer. The Annals of "Dunarea de Jos" University of Galati : Fascicle IX Metallurgy and Materials Science No. 2 - 2017, ISSN 1453-083X Sun, 01 Jan 2017 00:00:00 GMT http://arthra.ugal.ro/handle/20.500.14043/25840 2017-01-01T00:00:00Z http://arthra.ugal.ro/handle/20.500.14043/25839 Fuel Consumption Study for Auxiliary Engines that Equip an Oil Tanker Lupchian, Mariana 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 combustion engine; consumer (s); mechanisms and auxiliary installations of the internal combustion engine power plant. The energy required for the proper functioning of the energy system is provided by the engines it is equipped with. During the voyage, the ship has several conditions for navigation, and the main engine and auxiliary machinery do not work all the time on the same charge. The Annals of "Dunarea de Jos" University of Galati : Fascicle IX Metallurgy and Materials Science No. 2 - 2017, ISSN 1453-083X Sun, 01 Jan 2017 00:00:00 GMT http://arthra.ugal.ro/handle/20.500.14043/25839 2017-01-01T00:00:00Z http://arthra.ugal.ro/handle/20.500.14043/25838 Contributions to Increasing the Quality of Urban Life Through the use of an Intelligent Road Traffic Management System Carp, Bogdan Gabriel; Gingărașu, Mihai; Pînzaru, Narcisa Cela; Palaș, Serghei; Buruiană, Daniela Laura Traffic congestion is a phenomenon which occurs when road traffic is disturbed. In Galati city, traffic congestion increases rapidly due to an increase in the number of vehicles on the road. This work is an attempt to analyze the effects of traffic congestion by applying the waiting theory. Traffic congestion is frequent during the day, and the locals accept it as a daily routine. Urbanization in developing countries indicates that more people live in cities than before. The trend of urbanization, the population growth and the increasing number of registered vehicles put pressure on traffic and make life in the urban area more difficult. General data congestion and congestion management are the mitigation measures proposed but they are labor intensive and a heavy investment would be needed. Therefore, in order to find feasible measures, latest technologies such as GIS and GPS help analyze the live traffic situation and suggest cost effective measures to alleviate congestion. A previous attempt was effective in data collection, data analysis and display of results [1, 2]. A Geographic Information System (GIS) is a computer-based mapping tool that geographically analyses events and phenomena occurring on Earth. GIS technology integrates common database operations such as query and statistical analysis with unique viewing and the benefits of geographic analysis provided by maps [2]. In Galati, the GIS system is still not applicable because it has not been purchased by the competent authorities. In Romania, the GIS system is partially implemented. The traffic congestion has begun to be solved globally through GPS positioning technology with vehicle data collection, transport and operation. Using GPS Vehicle will provide direct and objective data on the behavior and status of the trip and the transport system that influences this behavior [3]. The Annals of "Dunarea de Jos" University of Galati : Fascicle IX Metallurgy and Materials Science No. 2 - 2017, ISSN 1453-083X Sun, 01 Jan 2017 00:00:00 GMT http://arthra.ugal.ro/handle/20.500.14043/25838 2017-01-01T00:00:00Z http://arthra.ugal.ro/handle/20.500.14043/25837 Experimental Research on Increasing the Durability of Cast ATCSi 5 Cu 1 Alloys for Sea Ships Through Heat Treatment Dima, Adrian; Dima, Iulia-Margareta 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, silumin type alloys) is envisaged to be in marine industry, where fatigue is very important, especially in corrosive medium. The applied complex heat treating is of tremendous importance and the results can be very good. Durability means a combination of different characteristics that determine the time period in which a cast part can be used in safe conditions. For a seagoing ship condition, the durability of ATCSi 5 Cu 1 cast parts depends especially on mechanical resistance and corrosive resistance in marine water. The present work investigates the possibilities offered by different heattreating techniques in order to increase the overall durability of the seagoing ship parts by increasing the mechanical resistance and reducing the corrosion in sea water. Thus, we conceived an original methodology of experimental research comprising of an optimum combination of adequate heat treating, static and dynamic tests as well as corrosion tests under pressure in conditions similar to sea water. The Annals of "Dunarea de Jos" University of Galati Fascicle IX Metallurgy and Materials Science No. 2 - 2017, ISSN 1453-083X Sun, 01 Jan 2017 00:00:00 GMT http://arthra.ugal.ro/handle/20.500.14043/25837 2017-01-01T00:00:00Z