Căutare 1993 -2018 după Data publicării
Afișează articolele 441-460 of 552
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Emissions of Hydrochloric Acid Vapors Generated by Pickling Process from Cold Rolling Mill of Steel Strips
(Universitatea "Dunărea de Jos"din Galați, 2015)The most important pollutant emitted in the sector of pickling within a cold strip mill in an integrated steel mill are the hydrochloric acid vapors. This work presents the chemical reactions between the hydrochloric ... -
Research on Chemical Deposition of Silver with Antibacterial Role in Implantology
(Universitatea "Dunărea de Jos" din Galați, 2015)The paper presents a synthesis of the laboratory research on the conditions of achieving chemical deposition of silver on oral implants made of Ti base alloy (bioalloy Ti10Zr). There were used several chemical deposition ... -
The Chemical and Metallurgical Analysis of Cooper-Based Shape Memory Alloys
(Universitatea "Dunărea de Jos" din Galați, 2015)The paper presents some aspects on the thermo-mechanical fatigue of shape memory alloy, a documentary synthesis of their industrial applications and chemical aspects concerning the use of these alloys in biomedical applications -
Water-in-Diesel Emulsions as Alternative Fuel for Diesel engines part I: Water-inDiesel Emulsions. A Literature Review
(Universitate "Dunărea de Jos" din Galați, 2015)Although emulsions have found numerous and various applications in chemical, pharmaceutical and food industries, emulsions of water in diesel fuel are applicable alternative fuels for the existing diesel engines. Wate ... -
Behaviour of the Mobile Phones Owners Relating to the Management of Theyr Devices
(Universitatea "Dunărea de Jos" din Galați, 2015)Today mobile phones have become apparently indispensable. They are the most used electronic devices in the world. The useful life of a mobile handset is decreasing; life cycle is diminished as a result of the speed of ... -
Influence of Alloying Elements on Corrosion Resistance of Some Iron - based Sintered P/M Alloys
(Universitatea "Dunărea de Jos" din Galați, 2015)In this paper is described the influence of alloying elements on corrosion behavior of sintered iron parts. The compacts were sintered at 1,150 °C and the sintering time was 60 minutes. After microstructural studies, the ... -
Influence of Heat Treatment Technology on the Structure and Properties of Thick Sheet Steel ASTM14 Degree F
(Universitatea "Dunărea de Jos" din Galați, 2015)In this paper, based on the researches carried out a heat treatment technology can be determined which further lead to an optimum set of mechanical properties according to the technical conditions: A. Annealing (austenite ... -
Influence of the Anodic Oxidation Treatment on the Corrosion Behaviour of Aluminium and Aluminium Alloyss
(Universitatea "Dunărea de Jos" din Galați, 2015)This paper deals with the effect of anodic oxidation treatment on the corrosion behaviour of 6061 aluminium alloy in natural sea water. Anodic oxidation treatment leads to the formation of an amorphous oxide layer on the ... -
Corrosion Resistance of Zinc Coated Steel in sea Water Environment
(Universitatea "Dunărea de Jos din Galați, 2015)The life time of metallic materials used in naval transport industry is influenced by their corrosion resistance. For utilization in shipbuilding and offshore construction, metallic materials need to be covered with ... -
Influence of Secondary Refining Treatments on the Quality of High-Grade Steel Used in Oil and Gas Industry
(Universitatea "Dunărea de Jos" din Galați, 2015)Steel is the most important alloy used in oil and gas industry from production and processing to the distribution of refined products. In this research is analyzed the production technology of steel intended for long ... -
Research on the Behaviour of the Tooth-Crown Assemblies Made of Different Metal Materials in Solutiond Simulating the Oral Environment
(Universitatea "Dunărea de Jos" din Galați, 2015)One of the basic principles of restorative dentistry is the conservation of the hard dental structure, while satisfying both aesthetic and functional requirements. Complying with this principle will minimize the harmful ... -
Alumina Influence on the Corrosion Resistance of Ni-PAl2O3 Composite Layers
(Universitate "Dunărea de Jos" din Galați, 2015)This paper aims to analyze the corrosion resistance of composite layers based on Ni-P matrix and disperse phase alumina of 10 μm size, present in amounts of 5, 10 and 20 g / L in the nickel plating bath. The influence ... -
The Protective Behaviour Titanium Nitride Coatings
(Universitatea "Dunărea de Jos" din Galați, 2015)The experiments conducted to obtain a thin layer of nitride through the vapour chemical deposition method have followed an original path to obtain TiN directly in the working room thus avoiding the import of these ... -
Corrosion Behavior of Ni-P Coated Steel Strips
(Universitatea "Dunărea de Jos" din Galați, 2015)In addition to high hardness, Ni-P coatings obtained by the electroless method are widely used due to their high corrosion resistance. The corrosion resistance depends on the content of phosphorus in the coating. Various ... -
Research on arisk Assessment of the Workplace in an Emergency County Hospital
(Universitatea "Dunărea de Jos" din Galați, 2015)In hospitals crisis conditions, in Romania, it is necessary along with the implementation of a correctly medical act, applied to patients and security measures relating to the employment for staff involved. The work shall ... -
Recovery of Copper from Waste Cables used in Electrical Appications
(Universitatea "Dunărea de Jos" din Galați, 2015)The recycling of copper cables wastes has as main objective the recovery of copper. The effectiveness of this operation is guaranteed by the following factors: infrastructure able to collect, select and sort these wastes; ... -
Dimensional Changes in Some Iron-Based Powder Metallurgy Alloys
(Universitatea "Dunărea de Jos" din Galați, 2015)The purpose of this paper is to present the dimensional changes in some ironbased (P/M) alloys. The specimens produced from atomized iron powder and alloyed powder with different sizes (< 45, 45-63, 63-100, 100-150, >150 ... -
Electrical Properties of Ultra-Sonicated Epoxy Resin
(Universitatea "Dunărea de Jos" din Galați, 2015)As ultra-sonication is a mostly used method to disperse the particles into the polymer matrix, the aim of this study is to point out the effect of epoxy’s exposure to ultra-sounds over the electrical properties, especially ... -
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 ... -
Evaluated Work System and Environmental Risk for a Worker in Drilling for Methane Gas
(Universitatea "Dunarea de Jos" din Galați, 2015)Improving the safety and health at work is important not only in terms of human view, in order to reduce possibilities of accident to workers, but also as a way to ensure the success and durability work for a worker in ...