Scientific papers - Annals of "Dunarea de Jos" University of Galati - Analele științifice ale Universității "Dunărea de Jos" din Galați: Recent submissions
Afișează articolele 541-560 of 1845
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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 ... -
Studies and Research on Pipe Networks Water Losses
(Universitatea "Dunărea de Jos" din Galați, 2017)The issue of water losses in pipe networks (transmission mains, conveyance and distribution pipelines) is one of the major problems encountered in water supply systems management. The losses have reached very high values, ... -
Energy Consumption Assessment in the Water Treatment Process, Bacau City Case Study
(Universitatea "Dunărea de Jos" din Galați, 2017)In the national and international context, two general concerns revolve around water treatment processes. First of all, we talk about energy efficiency and environmental compatibility in the water treatment plants that ... -
Ni-P Coating on Steel Support by Electroless Method
(Universitatea "Dunărea de Jos" din Galați, 2017)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 ... -
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 ... -
Contributions to Increasing the Quality of Urban Life Through the use of an Intelligent Road Traffic Management System
(Universitatea "Dunărea de Jos" din Galați, 2017)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 ... -
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, ... -
Calculation of the Deposited Layer Thickness Through Side Injection of Powder Using CO2 Laser
(Universitatea "Dunărea de Jos" din Galați, 2017)The paper presents a simplified theoretical model for estimating the operating parameters of the laser deposition by injecting the powder into the metal bath. The study considered the influence of the powder particles ... -
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 ... -
Management of the Environmental Risks Identified in an Organization
(Universitatea "Dunărea de Jos" din Galați, 2017)Response to risk is a process that is directly involved in risk management and is governed by the organization's security strategy, environmental characteristics and security mechanisms. The management identifies the ... -
Analysis of the Performance Coefficient of the Energetical Recovery of the Domestic Waste
(Universitatea "Dunărea de Jos" din Galați, 2017)The paper critically analyses the way of defining the coefficient of performance of the systems used for the recovery of the energy of the domestic waste in cogeneration plants. The R1 criterion of performance of the ... -
Analysis Tools for Sustainable Management of Cell Phone Waste for Metals Recovery
(Universitatea "Dunărea de Jos" din Galați, 2017)A modern cell phone contains over 60 metals, combined physically or chemically and in some cases covered with various types of plastics, ceramics, etc. For recycling, each metal from the device needs to be analyzed ... -
Analysis of the Floods Effects in June 2016 in the Voronet River Hydrographic Basin
(Universitatea "Dunărea de Jos" din Galați, 2017)The paper presents an analysis of the hydrological risk parameters registered in the Voroneţ river basin. The studies and researches took place on the Voroneţ River after the June 2016 floods. The research has taken into ... -
Analysis of Factors with Considerable Action on Recycling Weee Focused on Metals Recovery
(Universitatea "Dunărea de Jos" din Galați, 2017)From an economic point of view, the driving force of rapid technological development of WEEE recycling solutions is the recovery of valuable metals, until not long ago just on copper and gold. Nowadays many other metals ... -
The Quality of Metal Products Made on CNC Machines
(Universitatea "Dunărea de Jos" din Galați, 2017)Contemporary market must provide products that adapt to customer needs, which requires large investments and long-term employment. Producers have to take care of the buyers’ different way of thinking. The quality of ... -
Investigation of Mechanical Properties and Corrosion Behaviour for 1010 Carbon Steel Pipes Used for Steam Boilers
(Universitatea "Dunărea de Jos" din Galați, 2017)Depending on the conditions of their use, most equipment gets deteriorated in time. In this paper the corrosion rate (CR) was verified by using the experiment of weight loss (WL) of specimens from steam boiler pipes (SBP) ... -
Object Oriented Architecture for Product Information System Engineering
(Universitatea "Dunărea de Jos" din Galați, 2017)The product information system is an organizational device for regulating the creation, circulation, use and evolution of the information assets of the product definitions. It refers to all the information that defines ... -
Experimental Aspects for CeO2 Nanoparticles Synthesis and Characterization
(Universitatea "Dunărea de Jos" din Galați, 2017)In recent years, cerium oxide (CeO2, or ceria) became a versatile nanostructured material because of its unique properties derived from the low dimensionality and high surface area. It was also extensively studied due ... -
Influence of Sintering Temperature on the Structure of Yttrium Based Phosphor Nanoparticles
(Universitatea "Dunărea de Jos" din Galați, 2017)Yttrium-based phosphor materials belonging to the class known as garnets have witnessed a strong return with the development of the first white LEDs. Among these materials, yttrium aluminum garnet doped with cerium has ... -
Studies and Research on the Production of TiO2 and TiN thin Film by Assisted Physical Vapor Deposition Magnetron Process
(Universitatea "Dunărea de Jos" din Galați, 2017)The experimental research carried out in this paper aims at obtaining thin films of TiO2 and TiN and at characterizing them in terms of morphology, structure, transparency and electrical properties. The films were obtained ...
