Ara es mostren els items 37145-37164 de 87751

  • Evaluation of digital linearization techniques for PAs under 5G waveform operation in spectrum sharing scenarios 

    Cañal Blanco, Mireia; Mars Perez, Aitor (Universitat Politècnica de Catalunya, 2016-09-15)
    Treball Final de Grau
    Accés obert
    This project has been oriented to improve the efficiency and the linearization of power amplifiers (PA) with the combination of crest factor reduction (CFR) techniques and digital predistortion techniques (DPD). These ...
  • Evaluation of durability to wet/dry cycling of cement mortar composites reinforced with nanofibrillated cellulose 

    Ardanuy Raso, Mònica; Claramunt Blanes, Josep; Tolêdo Filho, Romidlo Dias (Woodhead Publishing Limited, 2012)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this work, the evaluation of the durability to wet/dry cycling exposure of cement composites reinforced with nanofibrillated cellulose comparing the results with composites reinforced with conventional cellulose fibres ...
  • Evaluation of dynamic sensitivity control algorithm for IEEE 802.11ax 

    Afaqui, Muhammad Shahwaiz Iqbal; García Villegas, Eduard; López Aguilera, M. Elena; Smith, Graham; Camps Mur, Daniel (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The explosive growth in the usage of IEEE 802.11 network has resulted in dense deployments in diverse environments. Most recently, the IEEE working group has triggered the IEEE 802.11ax project, which aims to amend the ...
  • Evaluation of enterprise performance based on FLI-GA Model 

    Zhang, Shouyi; Zhu, Xiaomin; Geng, Jiandong; Zhang, Runtong (OmniaScience, 2014-05)
    Article
    Accés obert
    Purpose: There are many kinds of methods to evaluate the performance of enterprise, but they still have some distinct shortcomings. In order to achieve a better evaluation result, we put forward a new model named FLI-GA ...
  • Evaluation of environmental-energy-economy models used in the EU policy processes 

    Gibert Cruz, Helena (Universitat Politècnica de Catalunya / Chalmers Tekniska Högskola, 2009)
    Projecte/Treball Final de Carrera
    Accés restringit per decisió de l'autor
    To assess energy policies and support decisions of policy makers, the development of models, which can simulate the future of emission-generating activities and their economic impacts, is currently a major field of interest. ...
  • Evaluation of essential work of fracture in a dual phase high strength steel sheet 

    Gutierrez, David; Pérez Caro, Lluís; Lara, Antoni; Casellas Padró, Daniel; Prado Pozuelo, José Manuel (2013-01)
    Article
    Accés obert
    La tenacidad de fractura de aceros de alta resistencia (AHSS), es una propiedad interesante para optimizar el com- portamiento a impacto, pero su caracterización experimental en chapas metálicas es compleja debido a su ...
  • Evaluation of expressions in a multiparadigm framework 

    Burgués Illa, Xavier; Franch Gutiérrez, Javier (1995-03)
    Report de recerca
    Accés obert
    A framework that combines imperative programs with algebraic specifications is presented. We focus on an execution mechanism that allows the arbitrary combination of programs and equations, which is based on the evaluation ...
  • Evaluation of feature calculation methods for electromechanical system diagnosis 

    Delgado Prieto, Miquel; García Espinosa, Antonio; Ortega Redondo, Juan Antonio (IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The use of intelligent machine health monitoring schemes is increasing in critical applications as traction tasks in the transport sector. The high diagnosis capability and reliability required in these systems are being ...
  • Evaluation of fire behaviour of flax fabrics treated with expandable graphite based coatings 

    Ardanuy Raso, Mònica; Ventura Casellas, Heura; Claramunt Blanes, Josep; Haurie Ibarra, Laia (2015)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    lmprovement of the fire behaviour of flax fabrics treated with silica coatings containing expandable graphite preparad through sol-gel treatment has been studied. Results show that silica coating containing expandable graphite ...
  • Evaluation of fracture toughness of small volumes by means of cube-corner nanoindentation 

    Cuadrado Lafoz, Núria; Casellas Padró, Daniel; Anglada Gomila, Marcos Juan; Jiménez Piqué, Emilio (2012-03)
    Article
    Accés obert
    In this work, the applicability of the two most commonly used equations for calculating the fracture toughness by nanoindentation is discussed in terms of the indenter geometry and the indentation crack morphology. These ...
  • Evaluation of genetic algorithms for mesh router nodes placement in wireless mesh networks 

    Xhafa Xhafa, Fatos; Sánchez Lopez, Christian; Barolli, Leonard; Spaho, Evjola (2010-12)
    Article
    Accés restringit per política de l'editorial
    In wireless mesh networks (WMNs) the meshing architecture, consisting of a grid of mesh routers, provides connectivity services to mesh client nodes. The performance and operability of WMNs largely depends on placement of ...
  • Evaluation of geometric, scatter and septal penetration components in fan beam collimators using Monte Carlo simulation 

    Cot Sanz, Alberto; Pareto, D; Sempau, J; Bullich, S; Pavia, J; Calviño Tavares, Francisco; Ros, D (IEEE, 2000)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The quantitative analysis of SPECT data requires an accurate determination of the collimator point spread function (PSF). The aim of this work is to characterize the PSFs of fan beam and parallel collimators by using ...
  • Evaluation of handmade micro-air vehicle designs and quadrotor implementation 

    Navarrete Rodriguez, Marcos (Universitat Politècnica de Catalunya, 2015-01-09)
    Treball Final de Grau
    Accés obert
    The aim of the present Bachelor Final Project is making, testing and evaluating three different Micro Air Vehicle handmade power plants. All of these ones were designed and implemented with tools and materials I had to. ...
  • Evaluation of high definition digital video signal over coaxial transmission lines 

    Fernández García, Raúl; Gil Galí, Ignacio (2016)
    Comunicació de congrés
    Accés obert
    In this paper, the propagation of two different digital video transmission standards have been evaluated over fifteen different coaxial cables. The frequency dependence of the attenuation for each cable and the maximum ...
  • Evaluation of HPC applications’ Memory Resource Consumption via Active Measurement 

    Casas, Marc; Bronevetsky, Greg (IEE, 2016)
    Article
    Accés obert
    As the number of compute cores per chip continues to rise faster than the total amount of available memory, applications will become increasingly starved for memory storage capacity and bandwidth, making the problem of ...
  • Evaluation of hydroxyapatite crystallization in a batch reactor for the valorization of alkaline phosphate concentrates from wastewater treatment plants using calcium chloride 

    Hermassi, M; Valderrama Angel, César Alberto; Dosta, Joan; Cortina Pallás, José Luís; Batis, N. Habib (2015-05-01)
    Article
    Accés restringit per política de l'editorial
    In this work, phosphorous recovery as hydroxyapatite (Ca5(PO4)3OH(s) = Hap) from alkaline phosphate concentrates (0.25–1 g P–PO43-/L) using calcium chloride (6 g/L) in a batch reactor was evaluated. Ca(II) solutions was ...
  • Evaluation of hyper-cross-linked polymeric sorbents (Macronet MN200 and MN300) on dye (Acid red 14) removal process 

    Valderrama Angel, César Alberto; Cortina Pallás, José Luís; Farran Marsà, Adriana; Gamisans Noguera, Javier; Heras Cisa, F. Xavier de las (2008-03)
    Article
    Accés restringit per política de l'editorial
    Polymeric supports are presented as an alternative to granular activated carbon (GAC) for organic contaminants removal from waste waters from industrial processes. The present work describes the sorption of an azo dye (Acid ...
  • Evaluation of IEEE1588 applied to synchronized acquisition in marine sensor networks (MSN) 

    Río Fernandez, Joaquín del; Toma, Daniel; Manuel Lázaro, Antonio; Ramos, Helena (2009)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Marine Sensor Networks (MSN) and ocean observatories are complex data acquisition systems where in many cases, synchronized acquisition is needed between the different networked nodes. In the development of OBSEA project, ...
  • Evaluation of in-flight trajectory optimisation with time constraints in a moving base flight simulator 

    Prats Menéndez, Xavier; Bussink, Frank; Verhoeven, Ronald; Marsman, Adri (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper describes an aircraft trajectory optimisation algorithm that is part of the time and energy managed operations (TEMO) concept, a new trajectory planning and guidance strategy for advanced four dimensional (4D) ...
  • Evaluation of industrial engineering students’ competencies for process improvement in hospitals 

    Mazur, Lukasz Maciej (School of Industrial and Aeronautic Engineering of Terrassa (ETSEIAT). Universitat Politècnica de Catalunya (UPC), 2010-12)
    Article
    Accés obert
    The failures to properly educate students about process improvement can be seen as major factor leading to increased risks of patient safety and increased wastes in hospital settings. The purpose of this research was ...