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Afișează articolele 2479-2498 of 2993
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Structured Surfaces used for Improving Tribological Behaviour for the Piston – Ring Cylinder – Liner Friction Couples in Internal Combustion Engines
(Universitatea "Dunărea de Jos" din Galaţi, 2007)Structured surfaces means the achievement of a rate, or controlled micro-geometry for one or both friction surfaces. These surface profiles are used to guarantee lubrication functions of transport, hoarding and spread of ... -
Structuri de sprijinire a afacerii şi rolul lor în dezvoltarea IMM-urilor
(Universitatea "Dunărea de Jos" Galaţi, 2012)În prezent se remarcă o preocupare destul de insistentă pentru performanţă la nivelul regiunilor şi valorificarea tuturor oportunităţilor legate de resursele zonei. În contextul marilor schimbări la nivel global, acţiunea ... -
Structuri mitice și simbolice în proza scurtă a scriitorilor șaizeciști
(Universitatea "Dunărea de Jos" din Galați, 2019)Teza de doctorat Structuri mitice și simbolice în proza scurtă a scriitorilor șaizeciști a urmărit studiul aprofundat al temelor, simbolurilor, arhetipurilor culturale reflectate în proza scurtă a scriitorilor Fănuș Neagu, ... -
Stucturi și forme literare / reprezentări ale feminității în nuvela românească pașoptistă
(Universitatea "Dunărea de Jos" din Galați, 2007-01)The tendency of the Romanian literature to synchronize with western European literature has been observable for a long time which highlights, in a special way, the woman status seen from a literary perspective. During the ... -
A Student Model in a Multi-Agent Intelligent System
("Dunarea de Jos" University of Galati, 2007)The paper presents an intelligent tutoring system which provides a Student Model using the “overlay method”. The system’s tasks are distributed among the intelligent agents (software agents), each having clearly specified ... -
Studies About Electrochemical Plating with Zinc-Nickel Alloys
(Universitatea "Dunărea de Jos" din Galați, 2007)The electrochemical deposition of zinc and combinations with elements of the 8th group of the Periodic System (nickel, cobalt, iron) have good properties for anticorrosive protection, compare with pure zinc. For steel ... -
Studies and Research Obtaining Bronze Filters Using Powder Metallurgy Methods
(Universitatea "Dunărea de Jos" din Galați, 2015)The article presents how to obtain porous bronze products using copper - based powder by powder metallurgy methods. The formation of tablets was done by free pouring the spherical powder into the mould, followed by their ... -
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, ... -
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 ... -
Studies and Research on Treatment of Titanium Alloys
(Universitatea "Dunărea de Jos" din Galați, 2014)Titanium and its alloys have an extended use due to special properties. The paper highlights the TiZr alloy intended to manufacture prostheses, the influence of plastic deformation on the properties and structure. Applied ... -
Studies and Researches Regarding the Obtaining and Characterization of Composite Nickel Coatings-Ni/Al2O3, Ni/Kaolin Electrochemically Produced
(Universitatea "Dunărea de Jos" din Galați, 2016)This study presents the composite nickel coatings electrochemically obtained using as disperse phases Al2O3 particles and kaolin. There were used Watts electrolytes, with a pH = 4, current density of 4 A/dm2, a concentration ... -
Studies Concerning Energetic Consumption of Some Heating Equipments with Resistors
(Universitatea "Dunărea de Jos" din Galați, 2007)In order to increase the resistance of aluminium alloys a complex heat treatment is usually performed. Therefore, we must consider the reaction time between aluminium alloys and furnace atmosphera. These atmospheres ... -
Studies on the Effects of Olive Oil Oxidation
(Universitatea "Dunarea 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 olive oil. Oxidation of olive oil is a process that leads ... -
Studies Regarding Nickel Electrodeposition from Watts bath with Addition of Polyvinylpyrrolidone and Sodium Saccharine
(Universitatea "Dunarea de Jos" din Galați, 2009)This paper is based on some studies about the influence of polyvinylpyrrolidone (PVP) and sodium saccharine as far as concern their influence on the nickel electroplating processes from Watts bath. PVP is a wetting ... -
Studies Regarding the Cooling of the Rolled Pieces With Atomizing Water
(Universitatea "Dunărea de Jos" din Galați, 2006)The diversity of metallurgical materials and processes imposes a large scale of cooling speeds. The classical cooling mediums restrict the scale of the cooling speeds, reason for which nonconventional alternatives were ... -
Studies Regarding the Influence of Carbon Content on the Tribological Behaviour of Gas-Carbu-Sintering Steels
(UDJG, 2011)The paper presents the experimental research on the tribological behavior of sintered steels obtained by carburizing the iron powder with different concentrations of graphite (Gr). For the experimental research were prepared ... -
Studies Regarding the properties Modification of AISI 310S Steel
(Universitatea "Dunărea de Jos" din Galați, 2017)The paper presents an analysis of classical heat treatments, which can be applied to AISI310S steel samples. The influence of these heat treatments was highlighted by micro-hardness measurements – Vickers method, and ... -
Studii acustice și termice ale schimbătoarelor de căldură din sistemele termoacustice
(Universitatea "Dunărea de Jos" din Galați, 2008)Un sistem termoacustic transformă parțial fluxul de căldură ce provine de la o sursă caldă în putere acustică, cedând un flux de căldură către sursa rece, dacă este motor. Dacă este refrigerator, sistemul termoacustic preia ... -
Studii asupra calităţii apei destinate consumului uman, pe baza principiilor şi elementelor strategice ce conduc la satisfacerea stării de sănătate a populaţiei şi dezvoltarea sustenabilă a societăţii
(Universitatea "Dunărea de Jos" din Galaţi, 2010) -
Studii asupra comportării etanşărilor cu manşetă de la cilindrii pneumatici cu tijă din materiale polimerice
(Universitatea "Dunărea de Jos" din Galaţi, 2011)Sistemele de actionare pneumatică sunt preferate într-un număr mare de aplicaţii industriale din cele mai diverse sectoare, datorită unor calităţi incontestabile precum: productivitatea, fiabilitatea ridicată, simplitatea ...
