Now showing items 5180-5199 of 79656

  • An empirical study to validate the use of ontological guidelines in the creation of i* models 

    Gomes, Ramilton Costa; Guizzardi, Renata Silva Sousa; Franch Gutiérrez, Javier; Guizzardi, Giancarlo; Wieringa, Roel (CEUR-WS.org, 2015)
    Conference report
    Open Access
    i* is a well known goal modeling framework, developed by a large and geographically dispersed research community. Currently, i* users tend to ascribe different and conflicting meanings to its constructs, leading to a non­ ...
  • An emulator framework for a new radio resource management for QoS guaranteed services in W-CDMA 

    Sallent Roig, José Oriol; Pérez Romero, Jordi; Casadevall Palacio, Fernando José; Agustí Comes, Ramon (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-10)
    Article
    Open Access
    In the context of third-generation (3G) systems a mix of services with different requirements are expected. Consequently, packet scheduling mechanisms for quality of service (QoS) guarantees will play a key role. This paper ...
  • An energy efficient protocol architecture for m-Health systems 

    Tennina, Stefano; Kartsakli, Elli; Graziosi, Fabio; Santos, Manuel; Lalos, Aristeidis; Antonopoulos, Angelos; Mekikis, Prodromos Vasileios; Di Renzo, Marco; Alonso Zárate, Luis Gonzaga; Verikoukis, Christos (2014)
    Conference report
    Restricted access - publisher's policy
    Contemporary technologies as implemented in the field of health care have provided the everyday clinical practice with a plethora of tools to be used in various settings. However, from all established and emerging applications, ...
  • An energy efficient vertical handover decision algorithm 

    Pons, Xavier (2015-03-26)
    Conference lecture
    Restricted access - publisher's policy
    As wireless communications evolve towards heterogeneous networks, mobile terminals have been enabled to handover seamlessly from one network to another. At the same time, the continuous increase in the terminal power ...
  • An energy management strategy for plug-in hybrid electric vehicles 

    Bader, Benjamin (Universitat Politècnica de Catalunya, 2013-11-29)
    Doctoral thesis
    Open Access
  • An energy model for the acoustic insulation of absorbing materials 

    Díaz Cereceda, Cristina; Poblet-Puig, Jordi; Rodríguez Ferran, Antonio (Sociedad Española de Métodos Numéricos en Ingeniería (SEMNI), 2013)
    Conference report
    Open Access
    In this work an energy model for the acoustic insulation of absorbing ma- terials is shown. This model is an extension of Statistical Energy Analysis (SEA) [1] in order to account for the effect of non-conservative ...
  • An energy-efficient and scalable eDRAM-based register file architecture for GPGPU 

    Jing, Naifeng; Shen, Yao; Lu, Yao; Ganapathy, Shrikanth; Mao, Zhigang; Guo, Minyi; Canal Corretger, Ramon; Liang, Xiaoyao (ACM, 2013)
    Conference report
    Restricted access - publisher's policy
    The heavily-threaded data processing demands of streaming multiprocessors (SM) in a GPGPU require a large register file (RF). The fast increasing size of the RF makes the area cost and power consumption unaffordable for ...
  • An energy-oriented optimization algorithm for solving the cell assignment problem in 4G-LTE communication networks 

    Rubio-Loyola, Javier; Gonzalez-Hernandez, Loreto; Díez Fernández, Luis Francisco; Agüero Calvo, Ramón; Serrat Fernández, Juan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    This paper presents a novel algorithm for solving the cell assignment problem with special emphasis on energy awareness. The algorithm aims at finding the minimum number of base stations (BSs) that have to be turned on to ...
  • An engineering approximation for the mean waiting time in the M/H2b/s queue 

    Barceló Arroyo, Francisco (INOC, 2003-10-27)
    Conference report
    Open Access
    Although the exact solution for the mean waiting time in the M/H2/s queue exists, it requires advanced programming skills and processing capacity. In most engineering problems the offered traffic and its features are known ...
  • An enhanced switching policy for buck-derived multi-level switching power amplifiers 

    García Tormo, Albert; Poveda López, Alberto; Alarcón Cot, Eduardo José; Bergveld, Henk Jan; Buter, Berry; Karadi, Ravi (2010)
    Conference report
    Open Access
    This work proposes a switching policy for multi-level fullbridge switching power converters and analyses their performance by driving them with a multi-level PWM modulation, targeting highefficiency power amplifiers. ...
  • An ensemble approach to estimate the fault-time instant 

    Alippi, Cesare; Boracchi, Giacomo; Puig Cayuela, Vicenç; Roveri, Manuel (2013)
    Conference report
    Open Access
    Since systems are prone to faults, fault detection and isolation are essential activities to be considered in safety-critical applications. In this direction, the availability of a sound estimate of the time instant the ...
  • An environment for a programming practical work based on gamification 

    Moré Guardiola, Àlex (Universitat Politècnica de Catalunya, 2016-01-26)
    Bachelor thesis
    Open Access
    Aquest projecte consta de la creació d'un nou entorn per a la pràctica de l'assignatura d'Estructura de dades i Algorismes. Hem fet un programa que simula les normes del joc, un visor per veure les partides, i un editor ...
  • An environment for the automatic verification of digital circuits 

    San Pedro Martín, Javier de (Universitat Politècnica de Catalunya, 2011-05-17)
    Master thesis (pre-Bologna period)
    Open Access
    English: The aim of this project is to implement a system for the automatic verification of digital circuits written in a high-level hardware description language (Verilog), to be potentially used to assist a electronic ...
  • An environmental assessment of air traffic speed constraints in the departure phase of flight: A case study at Gothenburg Landvetter Airport, Sweden 

    Mitchell, Deborah; Ekstrand, Henrik; Prats Menéndez, Xavier; Grönstedt, Tomas (2012-12)
    Article
    Restricted access - publisher's policy
  • An environmental impact causal model for improving the environmental performance of construction processes 

    Fuertes Casals, Alba; Casals Casanova, Miquel; Gangolells Solanellas, Marta; Forcada Matheu, Núria; Macarulla Martí, Marcel; Roca Ramon, Xavier (Elsevier, 2013-08-01)
    Article
    Restricted access - publisher's policy
    Despite the increasing efforts made by the construction sector to reduce the environmental impact of their processes, construction sites are still a major source of pollution and adverse impacts on the environment. This ...
  • An Environmental review of wineries over the last centuries : from vernacular to high tech 

    Ganem, Carolina; Coch Roura, Helena (2012)
    Conference report
    Open Access
    From Egyptians and Phoenicians to our times, the process of making wine and wineries have gone a long way. Primitive wineries were caves found or made in the compact solid ground or special rooms constructed with high ...
  • An environmental study of the use of steel slag aggregate in gabion cages 

    Richter, Tanya Brigitte (Universitat Politècnica de Catalunya, 2013-06-16)
    Minor thesis
    Open Access
    The growing tendency of sustainable building and development is transforming the way in which construction projects are faced. These changes are saving the natural environment, as well as, minimising the quantity of ...
  • An enzyme-catalysed bleaching treatment to meet dissolving pulp characteristics for cellulose derivatives applications 

    Quintana, Elisabet; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (2013-11)
    Article
    Restricted access - publisher's policy
    Bleached cellulose with good end-properties (_90% ISO brightness and 62% cellulose preservation) was obtained by using a totally chlorine-free biobleaching process (TCF). Unbleached sulphite cellulose was treated with ...
  • An epipolar-constrained prior for efficient search in multi-view scenarios 

    Bosch, Ignacio; Salvador, Jordi; Pérez-Pellitero, Eduardo; Ruiz Hidalgo, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    In this paper we propose a novel framework for fast exploitation of multi-view cues with applicability in different image processing problems. In order to bring our proposed framework into practice, an epipolar-constrained ...
  • An epistemology for sustainability science: a proposal for the study of the health/disease phenomenon 

    Rios Osorio, Leonardo Alberto; Ortiz Lobato, Manuel; Álvarez del Castillo, Javier (2009-02-01)
    Article
    Restricted access - publisher's policy
    Epistemological approaches in classical science were grounded on the explanatory needs of the phenomena of their historical time. Nevertheless, our contemporary world shows challenging situations in which the explanatory ...