Fascicula IX: Recent submissions

Afișează articolele 421-440 of 552

    • Effects Exerted by Slag Carried over from Converter in the Ladle on the Aluminum Assimilation 

      Niță, Petre Stelian (Universitatea "Dunărea de Jos" din Galați, 2014)
      In the present paper are shown aspects of the influence exerted by the some less controlled parameters of BOF steelmaking, mainly of slag characteristics at tapping. Following the necessities to control the steel ...

    • Behavior of Cold Rolling Emulsions in the Obtaining Process of Steel Strips 

      Radu, Tamara; Ciocan, Anișoara (Universitatea "Dunărea de Jos" din Galați, 2014)
      The research was focused on determining an optimum rolling emulsion to be used on a cold rolling mill from Galfinband Galati Romania. In this plant are obtained steel strips with the thickness of 0.7-0.8 mm. The main ...

    • Particularities of the Management System for Phone Mobile Waste in Romania 

      Ciocan, Anișoara (Universitatea "dunărea de Jos" din Galați, 2014)
      The main objective of this paper is to characterize the management system for mobile phones in Romania. The dimension of cell phone waste flow and the problems related to the collecting and recycling of this waste were ...

    • Elastic Modulus of Coatings by Pendulum Impact Test 

      Constantinescu, Stela (Universitatea "Dunărea de Jos" din Galați, 2014)
      The pendulum impact scratch device with high precision system in measuring normal and tangential forces during scratching has been used to study elastic modulus of coatings. The criterion for evaluation of elastic modulus ...

    • Characterization on the Red Mud Resulted from the Alumina Bayer Process Production for the Future Use in Geopolymers Synthesis 

      Spătaru (Severin), Ilenuța; Vlad, Maria; Gheorghieș, Constantin; Movileanu, Gelu (Universitatea "Dunărea de Jos" din Galați, 2014)
      This paper presents the results of analyses on the chemical, structural and morphological processing of bauxite red mud resulting from alkaline wet Bayer technology. The characterization of the material considered as ...

    • Tribocorrosion-insight Into Material Degradation in Specific Environments 

      Bașa, Sorin-Bogdan; Benea, Lidia (Universitatea "Dunărea de Jos" din Galați, 2014)
      Tribocorrosion is an irreversible surface degradation mechanism of a metallic and/or non-metallic material as a result of its physicochemical and mechanical interactions during relative motion (friction, sliding, impact, ...

    • Emphasizing the Toxicity of Heavy Metal ions on Plants: Monitoring with an Amino Acids Assay 

      Pintilie, Olga; Zaharia, Marius; Tudorachi, Lucia; Băncilă, Sabina; Drochioiu, Gabi; Sandu, Ion (Universitatea "Dunărea de Jos" din Galați, 2014)
      In order to emphasize modifications on living organisms resulted from interaction with heavy metals, we applied a simple, sensitive, quick, inexpensive and reproducible method. It evaluates modifications through determining ...

    • Siderurgy Slags Recovery in Building Industry 

      Bordei, Marian; Enăcache, Liviu; Dragomir, Ștefan (Universitatea "Dunărea de Jos" din Galați, 2014)
      During the metallurgical processes of iron and steel elaboration, besides the basic products, it results a serious of secondary products (wastes) in high quantities but with a high recycle – recovery potential, and their ...

    • Recycling of Cellulosic Waste in the Energy Sector 

      Drăgan, Mircea Viorel (Universitatea "Dunărea de Jos" Galați, 2014)
      Biomass is one of the Earth’s most abundant and precious resources. It offers not only food but also energy, materials used for construction, chemicals and much more. Biomass has always been used for generating energy ...

    • Experimental Research on Heating Behavior of Some Steels During Hot Metallurgical 1453 – 083X 

      Vasilescu, Elisabeta (Universitatea "Dunărea de Jos" din Galați, 2014)
      The heating of steel semi-products in view of hot rolling process or heat treatments is achieved at the large scale in propulsion ovens for the increase of their deformability and to improving mechanical characteristics ...

    • Noise Levels in Workplaces of Cold Rolling Mill Plant 

      Tudor, Beatrice; Ciocan, Anișoara (Universitatea "Dunarea de Jos" din Galați, 2015)
      The excessive noise exposure is one of numerous physical hazards present in the steel industry. Considerable noise develops the steel strips rolling process. In this study are presented and discussed the noise levels at ...

    • Research on Chemical Deposition of Silver with Antibacterial Role in Implantology 

      Vasilescu, Elisabeta; Vasilescu, Vlad Gabriel (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 

      Achiței, Dragoș Cristian; Minciună, Mirabela Georgiana; Vizureanu, Petrică (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

    • Emissions of Hydrochloric Acid Vapors Generated by Pickling Process from Cold Rolling Mill of Steel Strips 

      Ciocan, Anișoara (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 ...

    • Environmental Risk Assessment for Thermal Power Plants 

      Radu, Tamara (Universitatea "Dunărea de Jos" din Galați, 2015)
      Thermal power plants still represent an important source of energy both in Romania and in Europe. Risks on the environment are primarily generated by the noxae generated from combustion of fossil fuels, namely: noxious ...

    • Urban Pollution Issues Generated by Trams Traffic 

      Leopa, Adrian; Anghelache, Diana (Universitatea "Dunărea de Jos" din Galați, 2015)
      The modern society development involves new and diverse issues considering urban environmental pollution. Traffic generated sound and vibration are two upto- date urban environmental pollution causes besides air and water ...

    • Treatment of Ammonia Wastewater by Ultrasound. Part I: The Influence of the Ultrasound energy on the ultrasound Bath Temperature 

      Matei (Ciobotaru), Nicoleta; Scarpete, Dan (Universitatea "Dunărea de Jos" din Galați, 2015)
      The industrial ammonia water decontamination depending on the sample temperature is monitored by this study. The treatment was conducted by the UP100S ultrasound generator (Hielscher Ultrasound Technology, Germany), operating ...

    • Microstructural Characterization of the TiMoZrTa Alloy 

      Bălțatu, Mădălina Simona; Cimpoeșu, Ramona; Vizureanu, Petrică; Achiței, Dragoș Cristian; Minciună, Mirabela Georgiana (Universitatea "Dunărea de Jos" din Galați, 2015)
      In recent years, different types of titanium alloys have been investigated with the aim of using materials in biomaterials field, and Ti-Mo system alloys are very promising materials. Alloying titanium with biocompatible ...

    • The influence of the physical-Chemical Factors on the Distribution of Heavy Metals in the Delta Ecosystems 

      Constantinescu, Stela (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, ...

    • Surfasce Roughness and Topography of Ni/Micro-Sic Layers: Influence of Current Density on Electrodeposition Process 

      Ciubotariu, Alina; Benea, Lidia; Sand, Wolfgang (Universitatea "Dunărea de Jos" din Galați, 2015)
      The surface properties are directly responsible for the performance of engineering materials because most of failures such as friction, wear, corrosion and fatigue often take place on the material surface. Electrodeposition ...