Now showing items 1-20 of 467

    • 128 x 128 CMOS Image Sensor With Analog Memory for Synchronous Image Capture 

      Chapinal, Genis; Bota, Sebastian A.; Moreno, Mauricio; Palacín Roca, Jordi; Herms, Atilà (Institute of Electrical and Electronic Engineers, 2002)
      A 128 x 128 CMOS imager that permits synchronous capture is presented. The sensor combines the best of CMOS imagers (low-power, random readout, nondestructive readout, single supply voltage…) and synchronous capture ...
    • A correlation of the convective heat transfer coefficient between an air flow and a phase change material plate 

      Gracia Cuesta, Alvaro de; David, Damien; Castell, Albert; Cabeza, Luisa F.; Virgone, Joseph (Elsevier, 2013)
      This paper provides a new correlation to determine the heat transfer coefficient between an air flow and a plate made of phase change material (PCM). This correlation was built for the simulation of heat storage units ...
    • A distributed argumentation algorithm for mining consistent opinions in weighted Twitter discussions 

      Alsinet, Teresa; Argelich Romà, Josep; Béjar Torres, Ramón; Cemeli Sánchez, Joel (Springer, 2019)
      Twitter is one of the most powerful social media platforms, reflecting both support and contrary opinions among people who use it. In a recent work, we developed an argumentative approach for analyzing the major opinions ...
    • A framework for the optimal integration of solar assisted district heating in different urban sized communities: A robust machine learning approach incorporating global sensitivity analysis 

      Abokersh, Mohamed Hany; Vallès Rasquera, J. Manel; Cabeza, Luisa F.; Boer, Dieter (Elsevier, 2020)
      A promising pathway towards sustainable transaction to clean energy production lies in the adoption of solar assisted district heating systems (SDHS). However, SDHS technical barriers during their design and operation ...
    • A Fully Scalable and Distributed Architecture for Video-on-Demand 

      Cores Prado, Fernando; Ripoll, A.; Luque, Emilio (Springer Verlag, 2001)
      In spite of the attractiveness of Video-on-demand (VoD) services, their implantation to the present has not been as widespread as could have been desired due to centralized VoD systems have a limited streaming capacity ...
    • A Hybrid Approach for Modelling Early Prototype Evaluation Under User-Centred Design Through Association Rules 

      González Azconegui, María Paula; Granollers i Saltiveri, Toni; Lorés Vidal, Jesús (Springer Verlag, 2007)
      One of the main activities in User Centred Design (UCD) is prototype evaluation, which is traditionally performed by means of an Evaluation Stage that looks for the redefinition of the prototype requirements, involving ...
    • A Max-SAT Solver with Lazy Data Structures 

      Alsinet, Teresa; Manyà Serres, Felip; Planes Cid, Jordi (Springer Verlag, 2004)
      We present a new branch and bound algorithm for Max-SAT which incorporates original lazy data structures, a new variable selection heuristics and a lower bound of better quality. We provide experimental evidence that ...
    • A methodology for developing Distributed Generation scenarios in urban areas using geographical information systems 

      Medrano Martorell, Marc; Brouwer, Jack; Carreras-Sospedra, Marc; Rodriguez, Marco A.; Dabdub, Donald; Samuelsen, G. Scott (Inderscience, 2008)
      The implementation of Distributed Generation (DG) may lead to increased pollutant emissions that adversely affect air quality. This work presents a systematic methodology to characterise DG installation in urban basins. ...
    • A mobile robot agent for gas leak source detection 

      Martínez Lacasa, Daniel; Pallejà Cabrè, Tomàs; Moreno Blanc, Javier; Tresánchez Ribes, Marcel; Teixidó Cairol, Mercè; Font Calafell, Davinia; Pardo, Antonio; Marco, Santiago; Palacín Roca, Jordi (Springer International Publishing Switzerland, 2014)
      This paper presents an autonomous agent for gas leak source detec-tion. The main objective of the robot is to estimate the localization of the gas leak source in an indoor environment without any human intervention. The ...
    • A MOF-Compliant Approach to Software Quality Modeling 

      Burgués, Xavier; Franch, Xavier; Ribó i Balust, Josep M. (Josep Maria) (Springer Verlag, 2005)
      Software quality is a many-faceted concept that depends on the kind of artifact to be measured, the context where measurement takes place, the quality framework used, and others. Furthermore, there is a great deal of ...
    • A New Task Graph Model for Mapping Message Passing Applications 

      Roig Mateu, Concepció; Ripoll, A.; Guirado Fernández, Fernando (Institute of Electrical and Electronics Engineers, 2007)
      The exploitation of parallelism in a message passing platform implies a previous modeling phase of the parallel application as a task graph, which properly reflects its temporal behavior. In this paper, we analyze the ...
    • A novel numerical methodology for modelling simple vapour compression refrigeration system 

      Zsembinszki, Gabriel; Gracia Cuesta, Alvaro de; Moreno Argilés, Pere; Rovira, Ricard; González, Miguel Ángel; Cabeza, Luisa F. (Elsevier, 2017)
      The extended use of cooling and refrigeration systems in industrial, building and transport sectors may have a negative impact on the climate change and ozone depletion. Thus, important aspects related to these systems, ...
    • A Pipeline-Based Approach for Mapping Message-Passing Applications with an Input Data Stream 

      Guirado Fernández, Fernando; Ripoll, A.; Roig Mateu, Concepció; Luque, Emilio (Springer Verlag, 2004)
      Pipeline applications simultaneously execute different instances from an input data set. Performance parameters for such applications are latency (the time taken to process an individual data set) and throughput (the ...
    • A Platform for Object-Action Semantic Web Interaction 

      García González, Roberto; Gimeno Illa, Juan Manuel; Perdrix Sapiña, Ferran; Gil Iranzo, Rosa María; Oliva Solé, Marta (Springer Verlag, 2008)
      Semantic Web applications tests show that their usability is seriously compromised. This motivates the exploration of alternative interaction paradigms, different from the "traditional" Web or desktop applications ones. ...
    • A production planning model considering uncertain demand using two-stage stochastic programming in a fresh vegetable supply chain context 

      Mateo, Jordi; Pla Aragonés, Lluís Miquel; Solsona Tehàs, Francesc; Pagès Bernaus, Adela (SpringerOpen, 2016-06-22)
      Production planning models are achieving more interest for being used in the primary sector of the economy. The proposed model relies on the formulation of a location model representing a set of farms susceptible of being ...
    • A Proposal of a multi-agent system implementation for the control of an assistant personal robot 

      Martínez Lacasa, Daniel; Clotet Bellmunt, Eduard; Moreno Blanc, Javier; Tresánchez Ribes, Marcel; Palacín Roca, Jordi (Springer International Publishing Switzerland, 2016)
      This paper proposes a control system design for a mobile robot assistant based on a multi-agent architecture. The robotic platform used in this paper is a second generation Assistant Personal Robot (APR-02) with an own ...
    • A Secure Elliptic Curve-Based RFID Protocol 

      Martínez Rodríguez, Santi; Valls Marsal, Magda; Roig Mateu, Concepció; Miret, Josep M. (Josep Maria); Giné, Francesc (Springer Verlag, 2009)
      Nowadays, the use of Radio Frequency Identification (RFID) systems in industry and stores has increased. Nevertheless, some of these systems present privacy problems that may discourage potential users. Hence, high ...
    • A simple model to predict the thermal performance of a ventilated facade with phase change materials 

      Gracia Cuesta, Alvaro de; Castell, Albert; Fernàndez Camon, César; Cabeza, Luisa F. (Elsevier, 2015)
      Appropriate design and control strategies are crucial for the implementation of certain complex active systems in the building sector. Suitable and user-friendly numerical tools have to be available to architects and ...
    • A Space and Time Sharing Scheduling Approach for PVM Non-dedicated Clusters 

      Hanzich, Mauricio; Giné, Francesc; Hernández Budé, Porfidio; Solsona Tehàs, Francesc; Luque, Emilio (Springer Verlag, 2005)
      Wasted resources are a common reality in open laboratories in any University today [2]. Our aim is to take advantage of those resources to do parallel computation without disturbing the local tasks excessively. In order ...
    • A Time-Domain Method for the Analysis of Thermal Impedance Response Preserving the Convolution Form 

      Carmona, Manuel; Marco, Santiago; Palacín Roca, Jordi; Samitier, Josep (Institute of Electrical and Electronics Engineers, 1999)
      The study of the thermal behavior of complex packages as multichip modules (MCM’s) is usually carried out by measuring the so-called thermal impedance response, that is: the transient temperature after a power step. ...