Ara es mostren els items 29549-29568 de 87955

  • Efficient openMP over sequentially consistent distributed shared memory systems 

    Costa Prats, Juan José (Universitat Politècnica de Catalunya, 2011-07-20)
    Tesi
    Accés obert
    Nowadays clusters are one of the most used platforms in High Performance Computing and most programmers use the Message Passing Interface (MPI) library to program their applications in these distributed platforms getting ...
  • Efficient operation of photo-Fenton process for the treatment of emerging contaminants in water solutions 

    Yamal Turbay, Evelyn (Universitat Politècnica de Catalunya, 2013-10-24)
    Tesi
    Accés obert
    The growth of population density in some areas of the planet and the increasing fast advances in technology and energy issues, have resulted in a remarkable increment in the necessity for goods and services, with a subsequent ...
  • Efficient optimal sensor placement for structural model based diagnosis 

    Rosich Oliva, Albert; Yassine, Abed Alrahim; Ploix, Stéphane (2010)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This work aims to study which sensors are required to be installed in a process in order to improve certain fault diagnosis specifications. Especially, the present method is based on structural models, thus system models ...
  • Efficient packet sampling for accurate traffic measurements 

    Raspall Chaure, Frederic (2011-11-30)
    Article
    Accés restringit per política de l'editorial
    Packet sampling is needed to measure network traffic scalably at high speeds. While many sampled-based measurement techniques have been developed in the recent past, most approaches select packets uniformly, without regard ...
  • Efficient parallel construction of suffix trees for genomes larger than main memory 

    Comin, Matteo; Farreras Esclusa, Montserrat (ACM, 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The construction of suffix tree for very long sequences is essential for many applications, and it plays a central role in the bioinformatic domain. With the advent of modern sequencing technologies, biological sequence ...
  • Efficient parametric characterization of the dynamic performance of an RFID IC 

    Capdevila Cascante, Santiago; Jofre Roca, Lluís; Romeu Robert, Jordi; Bolomey, J.Ch (2012)
    Article
    Accés restringit per política de l'editorial
    In this letter, a measurement technique for a complete parametric characterization of the input impedance of an RFID IC is presented. The use of an SPDT switch to modulate the signal from the network analyzer provides ...
  • Efficient power management based on a distributed queuing MAC for wireless sensor networks 

    Otal, B; Verikoukis, Christos; Alonso Zárate, Luis Gonzaga (Institute of Electrical and Electronics Engineers (IEEE), 2007)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    Significant power is consumed at a sensor node when it either transmits a packet or when it receives a packet. In this paper, we study energy efficiency as a function of the number of sensors in the network and the payload ...
  • Efficient Predictive Control for polytopic systems: application to the four-tank system 

    Acevedo Valle, Juan Manuel (Universitat Politècnica de Catalunya, 2014-06)
    Projecte Final de Màster Oficial
    Accés restringit per decisió de l'autor
    The present work proposes to develop a Fault Tolerant Control strategy based on Robust Efficient Predictive Control for non-linear systems that can be modeled using a polytopic model. The proposed Efficient Predictive ...
  • Efficient preliminary floating offshore wind turbine design and testing methodologies and application to a concrete spar design 

    Matha, Denis; Sandner, Frank; Molins i Borrell, Climent; Campos Hortigüela, Alexis; Cheng, Po Wen (Royal Society, 2015-02)
    Article
    Accés obert
    The current key challenge in the floating offshore wind turbine industry and research is on designing economic floating systems that can compete with fixed-bottom offshore turbines in terms of levelized cost of energy. The ...
  • Efficient privacy preserving predicate encryption with fine-grained searchable capability for cloud storage 

    Wang, Xu An; Xhafa Xhafa, Fatos; Cai, Weiyi; Ma, Jianfeng; Wei, Fushan (2016-06-01)
    Article
    Accés restringit per política de l'editorial
    With the fast development in Cloud storage technologies and ever increasing use of Cloud data centres, data privacy and confidentiality has become a must. Indeed, Cloud data centres store each time more sensitive data such ...
  • Efficient production binning using octree tessellation in the alternate measurements space 

    Gómez Pau, Álvaro; Balado Suárez, Luz María; Figueras Pàmies, Joan (2015)
    Article
    Accés obert
    Binning after volume production is a widely accepted technique to classify fabricated ICs into different clusters depending on different degrees of specification compliance. This allows the manufacturer to sell non optimal ...
  • Efficient read-restricted monotone CNF/DNF dualization by learning with membership queries 

    Pitt, L.; Mishra, N.; Domingo Soriano, Carlos (1998-07-01)
    Report de recerca
    Accés obert
    We consider exact learning monotone CNF formulas in which each variable appears at most some constant k times (``read-k'' monotone CNF). Let f: {0,1}^n ----->{0,1} be expressible as a read-k monotone CNF formula for ...
  • Efficient recognition approaches for the interaction between humans and aerial robots 

    Hernández Ruiz, Alejandro José (Universitat Politècnica de Catalunya, 2016-04-20)
    Projecte Final de Màster Oficial
    Accés obert
    This project consists in a set of computer vision methods that serve as a baseline to perform HRI experiments. The methods are aimed to perform: visual marker detection, face detection and object recognition. Then we tested ...
  • Efficient Rectenna Design for Ambient Microwave Energy Recycling 

    Andía Vera, Gianfranco (Universitat Politècnica de Catalunya, 2009-07-07)
    Projecte/Treball Final de Carrera
    Accés obert
    The work focuses on designing, measuring and testing an antenna and recti er circuit (RECTENNA) optimized for incoming signals of low power density. The rectenna is used to harvest electric energy from the RF signals ...
  • Efficient rendering of animated characters through optimized per-joint impostors 

    Beacco Porres, Alejandro; Andújar Gran, Carlos Antonio; Pelechano Gómez, Núria; Spanlang, Bernhard (2012-02)
    Article
    Accés restringit per política de l'editorial
    In this paper, we present a new impostor-based representation for 3D animated characters supporting real-time rendering of thousands of agents. We maximize rendering performance by using a collection of pre-computed ...
  • Efficient representation of contours using splines implemented with FIR filters 

    Ferrer Arnau, Luis Jorge; Parisi Baradad, Vicenç; Reig Bolano, Ramon; Marti Puig, Pere; Manjabacas, A. (2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The interpolation of contour pixels, with splines, of an order greater than or equal to two, usually causes oscillations that do not fit the original shape. To overcome this we propose using a least squares filter before ...
  • Efficient resource management in heterogeneous multiprocessor systems 

    Merino Vidal, Julio M. (Universitat Politècnica de Catalunya, 2007-07-06)
    Projecte/Treball Final de Carrera
    Accés obert
  • Efficient resources assignment schemes for clustered multithreaded processors 

    Fernando, Latorre; González González, José; González Colás, Antonio María (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Text en actes de congrés
    Accés obert
    New feature sizes provide larger number of transistors per chip that architects could use in order to further exploit instruction level parallelism. However, these technologies bring also new challenges that complicate ...
  • Efficient rotation invariant object detection using boosted random Ferns 

    Villamizar Vergel, Michael Alejandro; Moreno-Noguer, Francesc; Andrade-Cetto, Juan; Sanfeliu Cortés, Alberto (2010)
    Text en actes de congrés
    Accés obert
    We present a new approach for building an efficient and robust classifier for the two class problem, that localizes objects that may appear in the image under different orientations. In contrast to other works that address ...
  • Efficient routing mechanisms for Dragonfly networks 

    García, Marina; Vallejo, Enrique; Beivide Palacio, Julio Ramón; Odriozola, Miguel; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Comunicació de congrés
    Accés obert
    High-radix hierarchical networks are cost-effective topologies for large scale computers. In such networks, routers are organized in super nodes, with local and global interconnections. These networks, known as Dragonflies, ...