Browsing by Subject "Metals"

Now showing items 1-20 of 30

  • A fuzzy approach for the selection of non-traditional sheet metal cutting processes 

    Cortés Sáenz, David; Gordillo Castillo, Nelly; Riba Romeva, Carles; Lloveras Macià, Joaquín (2015-09)
    Article
    Restricted access - publisher's policy
    This work presents a methodology for the selection and comparison of non-traditional sheet metal cutting processes as a new structure of selection by means of an expert system. The model is generated from a knowledge base ...

  • Análisis y ajuste de las variables de proceso para la fabricación de polvos de aleaciones base estaño mediante un atomizador centrífugo 

    Ayllón Muro, Àxel (Universitat Politècnica de Catalunya, 2017-06)
    Bachelor thesis
    Restricted access - author's decision
    En el presente proyecto se ha realizado la puesta a punto de un prototipo para la atomización de polvo metálico mediante la técnica de atomización centrífuga, incluyendo los diferentes componentes que intervienen en el ...

  • Application of mechanically alloyed MnAl particles to de-colorization of azo dyes 

    AboliGhasemabadi, Mitra; Mbarek Wael, Ben; Casabella, Oriol; Roca Bisbe, Helena; Pineda Soler, Eloi; Escoda, Lluïsa; Suñol, Joan J. (2018-04-15)
    Article
    Restricted access - publisher's policy
    The use of metallic particles has been shown to be an effective, low-cost method for degradation of many contaminating compounds. In this work, we analyze the efficiency of MnAl metallic powders for degrading azo dyes, ...

  • Arsenic and metal mobility from Au mine tailings in Rodalquilar (Almaría, SE Spain) 

    Navarro Flores, Andrés Francisco; Domènech Rubio, Luis Miguel (2010-02-19)
    Article
    Restricted access - publisher's policy
    In the old mining area of Rodalquilar, mine wastes, soil and sediments were characterized and the results revealed high concentration of Au, Ag, As, Bi,Cu, Fe, Mn, Pb, Se, Sb and Zn in tailings and sediments. The contaminant ...

  • Caracterizacion térmica de hueso y substratos metálicos para uso biomédico 

    Peña Rodríguez, Gabriel; Méndez González, Magdalena; Calderón Arenas, Antonio; Cruz Orea, Alfredo; Sánchez Sinencio, Feliciano (Sociedad Ibérica de Biomecánica y Biomateriales, 2000-12)
    Article
    Open Access
    En este trabajo reportamos mediciones de difusividad térmica a temperatura ambiente en dos diferentes cortes de hueso denso de res, hueso de res en polvo e hidroxiapatita comercial en polvo. Realizamos una comparación ...

  • Caracterización y tratamiento de suelos contaminados por actividades mineras mediante materiales reactivos 

    Navarro Flores, Andrés Francisco (2010)
    Conference lecture
    Restricted access - publisher's policy
    En áreas mineras abandonadas, como en la antigua cuenca minera de Anglés (Girona), existen diversas zonas afectadas por la minería del Pb, habiéndose producido la contaminación de los suelos y aguas subterráneas, a causa ...

  • Change of the k-factor of printed sensors after multiaxial load 

    Cortés Bañeres, Victor (Universitat Politècnica de Catalunya, 2017-08-31)
    Bachelor thesis
    Open Access
    In this thesis, the analysis of the variation of the k-factor after multiaxial loads in a uniaxial tensile test is done. For the performance of this project, the characterization of the DC04 steel is made, analyzing the ...

  • Composition, nanostructure, and optical properties of silver and silver-copper lusters 

    Pradell Cara, Trinitat; Pavlov, R.S.; Gutiérrez Repiso, Carolina; Climent Font, Aurelio; Molera Marimon, Judit (American Institute of Physics (AIP), 2012-09-01)
    Article
    Open Access
    Lusters are composite thin layers of coinage metal nanoparticles in glass displaying peculiar optical properties and obtained by a process involving ionic exchange, diffusion, and crystallization. In particular, the origin ...

  • Coneixement bàsic de metalls 

    Bonet Ferrer, Vicenç ([Escola Tècnica Superior d'Arquitectura de Barcelona], 1995)
    Book
    Open Access

  • Contingut en metalls de hortícoles als que s'ha daplicat residus orgàncis en diferents dosis 

    Lopera, J. A.; Crespo Artiaga, Daniel; Diaz, S.; Gutierrez, Y.; Janer, P.; Perez, X.; Segovia, S.; Soliva Torrentó, Montserrat; Valero, J. (2000)
    Conference lecture
    Open Access

  • Disseny, construcció i posada a punt d'una cambra d'atmosfera controlada per a un sistema d'atomització centrífuga de pols metàl·lica 

    Arderiu Modinos, Genís (Universitat Politècnica de Catalunya, 2017-06)
    Bachelor thesis
    Restricted access - author's decision
    El present projecte té per objectiu el desenvolupament d'un equip d'atomització de pols metàl·lica mitjançant a tècnica d'atomització centrífuga. Aquest equip ha de poder fabricar petites quantitats de pols metàl·lica ...

  • Dynamical models of a wire scanner 

    Barjau Condomines, Ana; Herranz Álvarez, Juan Francisco; Dehning, Bernd (2016-10-01)
    Article
    Restricted access - publisher's policy
    The accuracy of the beam profile measurements achievable by the current wire scanners at CERN is limited by the vibrations of their mechanical parts. In particular, the vibrations of the carbon wire represent the major ...

  • Ecological screening indicators of stress and risk for the Llobregat river water 

    Lopez Roldan, Ramon; Jubany, Irene; Martí Gregorio, Vicenç; Gonzalez, Susana; Cortina Pallás, José Luís (Elsevier, 2013-12-15)
    Article
    Restricted access - publisher's policy
    The objective of this article is to develop and apply several simple and rough indicators for river aquatic ecosystems assessment in order to screen potential chemical stressors. Several indicators, based on toxicity (PNEC) ...

  • Effect of quenching and partitioning process on a low carbon steel 

    Di Schino, Andrea; Di Nunzio, Paolo Emilio; Cabrera Marrero, José M. (2017-05)
    Article
    Restricted access - publisher's policy
    Aim of this paper is to analyze the effect of manganese percentages on steel compositions. Laboratory as cast materials, in particular designed for Quenching and Partitioning process (Q&P), are here considered. The ...

  • Effect of sludge amendment on remediation of metal contaminated soils 

    Navarro Flores, Andrés Francisco (2012-11-28)
    Article
    Open Access

  • Evaluation of metal attenuation from mine tailings in SE Spain (Sierra Almagrera): A soil-leaching column study 

    Navarro Flores, Andrés Francisco (2010-04-01)
    Article
    Open Access
    A laboratory study was undertaken using mine tailings and soil columns to evaluate some of the natural processes that can control the mobility of metals at Pb–Ag mine tailings impoundments. The effects of buffering, pH, ...

  • Fatigue of metals 

    Argente Ripoll, Antoni (Universitat Politècnica de Catalunya, 2015-07-03)
    Bachelor thesis
    Restricted access - author's decision
    Covenantee:  Hochschule Darmstadt
    Fatigue of metals is a final bachelor thesis where is discussed three different methods to analyze the results of a fatigue test: The Wöhler curve, the Weibull distribution and the Gumbel distribution. From the results ...

  • Foundry process 

    Fonellosa Caro, Oriol (Universitat Politècnica de Catalunya, 2017-07-14)
    Bachelor thesis
    Open Access
    This document is a report on the work completed in the Foundry process team, between the months of February and June 2016-2017, at the École Nationale d’Ingénieurs de Tarbes (ENIT), as part of the European Project Semester ...

  • High-pressure torsion of iron with various purity levels and validation of Hall-Petch strengthening mechanism 

    Tejedor Busquets, Robert; Edalati, Kaveh; Benito Páramo, José Antonio; Horita, Zenji; Cabrera Marrero, José M. (2019-01-16)
    Article
    Restricted access - publisher's policy
    Impurity atoms have a significant effect on the strength of metals processed by severe plastic deformation (SPD), but their strengthening mechanism is still under argument. To gain an insight into the strengthening ...

  • Influence of a mixture of metals on PAHs biodegradation processes in soils 

    Baltrons, Oriol; López Mesas, Montserrat; Vilaseca Vallvé, M. Mercedes; Gutiérrez Bouzán, María Carmen; Le Derf, Franck; Portet-Koltalo, Florence; Palet, Cristina (Elsevier, 2018)
    Article
    Restricted access - publisher's policy
    In order to assess the effect of mixed pollutants, the influence of different concentration levels of a mixture of metals (Cr, Co, Pb, Mn, Ni, Cu, Zn) on the biodegradation of some PAHs (phenanthrene, fluoranthene, pyrene, ...