Afișează articolele 501-520 of 552

    • Ecotechnologies-A Major Route for Durable-Sustainable Development in the Metal Materials Industry 

      Nicolae, Avram; Drăgan, Claudia Ionela; Grădinaru, Cătălin Ștefan; Rucai, Valeriu; Nicolae, Maria (Universitatea "Dunărea de Jos' din Galați, 2016)
      The paper shows that the durable and sustainable development depends on the quality of the events occurring in the convergence area between the natural ecological system (N.E.S.) and the technological system (T.S.) ...
    • The Eco-Efficiency of Recycling Organic Waste for Agriculture Purposes 

      Banacu, Cristian; Olaru, Bianca Georgiana (Universitatea "Dunarea de Jos" din Galați, 2016)
      One of the problems of the cities is the raising of household waste, with polluting effects on the environment. On the other hand, in agriculture, through specific activities necessary to ensure food, fertilizers are ...
    • Aspects Regarding the Impact of Energy Recovery from Domestic Waste on Atmosphere 

      Leopa, Adrian; Șerban, Anca (Universitatea "Dunărea de Jos" din Galați, 2016)
      The issue of domestic waste neutralization appeared with human civilization but got new dimensions in the context of the present consumer society. The diversity and increasing quantity of domestic waste imposed finding ...
    • Thermo-Mechanical Analysis of Sprayed Layers Using the Finite Element Method 

      Gheța, Roxana-Alexandra; Dumitru, Bogdan; Dumitru, Gabriel Marius; Militaru, Mădălina-Elena (Universitatea "Dunărea de Jos" din Galați, 2016)
      The present paper presents an analysis performed in order to determine the thermo-mechanical behavior at the layer-substrate interface in case of thermal spraying, by using the ANSYS R15.0 software. The analysis was made ...
    • Numerical Study on Ballistic Phenomena-Part Two 

      Bălan, Vasile; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2016)
      The study of ballistic phenomena (interior ballistics, exterior ballistics and terminal ballistics) is an activity that involves the use of complex and at the same time very expensive equipment. Also, another aspect worth ...
    • The Influence of Speed Cooling on Some Properties of Laminated Steel 

      Papadatu, Carmen Penelopi; Bordei, Marian (Universitatea "Dunărea de Jos" din, 2016)
      This study presents a possibility to predict the connection between the cooling regime and the properties of steel. An important factor to enhance the properties of steel is the speed of the cooling regime. To be in ...
    • Environmental Risks Assessment by Qualitative and Quantitative Methods 

      Radu, Tamara (Universitatea "Dunărea de Jos" din Galați, 2016)
      The paper presents qualitative and quantitative methods, applicable on environmental risks, and conditions of application. The principles of the two classes of risk assessment methods and the advantages and disadvantages ...
    • Optimization Techniques for the Neutralization of the Polluted Waters from Metal Plating 

      Dragomir, Ștefan; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2016)
      The problems related to the protection of the environment are regarded especially as a result of the local pollution by the industry and agriculture or by the overcrowded areas, which have led to the disturbance of some ...
    • Research on the Operation of Commercial Vessels with Compressed Air 

      Dragomir, Ștefan; Bordei, Marian (Universitatea "Dunărea de Jos" din Galați, 2016)
      Regarding the reduction of the carbon dioxide emissions in the atmosphere, this paper is going to present a system of propulsion with compressed air used for medium-sized commercial vessels. In the transport domain, ...
    • Methods to reduce gas emissions onboard ships 

      Bosoncă, Ioan (Universitatea "Dunărea de Jos' din Galaţi, 2016)
      Regarding the latest IMO requirements, the EEDI (Energy Efficiency Design Index) is mandatory to be limited as levels under IMO MEPC requirements. The paper presents some paths to reduce EEDI as are applied onboard a ...
    • Assessment of the Influence of Breakage Strenth Rocks by Cox Method 

      Toderaș, Mihaela; Danciu, Ciprian (Universitatea "Dunărea de Jos" din Galați, 2016)
      Analyzed according to the theory of continuous mechanics, medium rock massif is a natural environment difficult to know, so the forecasts referring to its behaviour are approximate and uncertain. Such an assertion becomes ...
    • Static and Dynamic Analysis of Stress and Deformations of Răstolița Dam 

      Toderaș, Mihaela; Danciu, Ciprian (Universitatea "Dunărea de Jos" din Galați, 2016)
      Large Dams are a particularly important case of seismic risk assessment. On the one hand, the dams themselves have a high value, having implications for the whole economy, through the production of electricity, water ...
    • The Dynamic Simulation for a Cold Rolling Mill Machine 

      Dragomir, Ștefan (Universitatea "Dunărea de Jos" din Galați, 2016)
      For a cold rolling mill machine that represents a mechanical system, the dynamics problems may be solved by using the differential equations of their movement. We must consider all the connections and couplings for the ...
    • Chargers for Blast Furnaces Double Bell VS. Rotary Chute 

      Vasiliu, Adrian (Universitate "Dunărea de Jos" din Galaţi, 2016)
      The distribution of materials at the mouth of the loading of a furnace is decisive for its operation at optimal efficiency. For this operation using charging devices that can be of several types is useful. The paper ...
    • Influence of reduction scheme on hardness cold rolled strip mark steel ST 12 

      Neacşu, Marian-Iulian; Drăgan, Viorel (Universitatea "Dunărea de Jos" din Galaţi, 2016)
      The paper presents the results of the research on the influence of the evolution hardness scheme rolled steel, for the cold-rolled strip steel St 12. St 12 is intended for the manufacture of cold rolled strip stamping ...
    • New materials and practices for brickwork tip "torpedo" pot 

      Vasiliu, Adrian (Universitatea "Dunărea de Jos" din Galaţi, 2016)
      Nowadays, pots, besides transport operations and liquid metal desulphurization perform functions of dephosphorization. Intense refractory brickwork is required, and in such cases, it is recommended that the performance ...
    • Statistical Correlations Between Chemical Composition and Mechanical Properties of A516 Grade 65 Steel 

      Ciocan, Anișoara; Tudor, Beatrice (Universitatea "Dunărea de Jos" din Galați, 2016)
      In order to respond to required demands associated to certain operation conditions, the steels used in petroleum, petrochemical and chemical processing industries must have significant improved mechanical properties. ...
    • Design of a New Type of Gas-Dynamic Disruptor Used to Neutralize Improvised Explosive Devices 

      Bălan, Vasile; Bordei, Marian (Universitatea "Dunărea de Jos' din Galați, 2016)
      The paper presents a type of recoilless disruptor developed according to the studies of two disruptors performance and shortcomings currently used DR2 and RICHMOND, respectively. In creating the new disruptor, there were ...
    • Experimental Shooting with Thor-1 Disruptor: New Type of Gas Device used to Neutralize improvised Explosive Devices 

      Bălan, Vasile; Bordei, Marian (Umiversitaea "Dunărea de Jos" din Galați, 2016)
      The paper presents experiments conducted with disruptor THOR-1, a new type of gas-dynamic device used to neutralize improvised explosive devices. Disruptor THOR-1 [1] was designed and practically built as a gas-dynamic device ...
    • Studies and Research on Pipe Networks Water Losses 

      Chirică, Ștefania; Luca, Mihail (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, ...