Now showing items 21-33 of 33

    • On tunable switch-mode reactive networks: a gyrator-based resonator emulation 

      Saad, M.A.; Egidos, Nuria; Bou Balust, Elisenda; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      This paper introduces the concept of switch-mode tunable emulated reactive networks. The idea of implementing reactive networks based on the theory of gyrators is proposed and characterized in an application-driven ...
    • Optimization of WPT efficiency using a conjugate load in non-impedance matched systems. 

      Chabalko, Matthew; Alarcón Cot, Eduardo José; Bou Balust, Elisenda; Ricketts, David S. (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      Maximum power transfer and maximum efficiency are two important design constraints in wireless power transfer applications. Several works have investigated the proper load and impedance match conditions to optimize either ...
    • Optimized model-based design space exploration of distributed multi-orbit multi-platform Earth observation spacecraft architectures 

      Araguz López, Carles; Llaveria Godoy, David; Lancheros Sepulveda, Estefany Maria; Bou Balust, Elisenda; Camps Carmona, Adriano José; Alarcón Cot, Eduardo José; Lluch, I.; Matevosyan, H.; Golkar, Alessandro; Tonetti, Stefania; Cornara, Stefania; Pierotti, S.; Rodríguez Mondelo, Pedro Manuel; Alvaro Sanchez, A.; Narkiewicz, J. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      Satellite architectures where networked, heterogeneous observation nodes capture data in a distributed manner are seen as feasible solutions to address the needs of next-generation Earth observation services (i.e. higher ...
    • Resonant inductive coupling wireless power transfer 

      Bou Balust, Elisenda (Edicions UPC, 2012)
      Conference report
      Open Access
      Recent research on wireless power transfer (WPT) using resonant inductive coupling has demonstrated very promising efficiencies (above 80%) [1] at large distances compared to the antenna dimensions (more than three times ...
    • System-level autonomous decision-making for earth observation satellite systems 

      Araguz López, Carles; Bou Balust, Elisenda; Alarcón Cot, Eduardo José (2019)
      Conference report
      Restricted access - publisher's policy
      Autonomous operational strategies for Earth Observation systems are called to address the challenging task of coordinating multiple sensing assets to deliver very short revisit times and near-real-time access to data. ...
    • Temperature gradient sensor from pulsed power supply duty cycle in ultra-low-power energy harvesting system 

      Jové Casulleras, Roger; Ramos Castro, Juan José; Corimanya, H; Camps Carmona, Adriano José; Alarcón Cot, Eduardo José; Amézaga Sarries, Adrià; Bou Balust, Elisenda (Institution of Electrical Engineers, 2014-05-22)
      Article
      Restricted access - publisher's policy
      Directly interfacing sensors that link sensors to micro-controllers without a signal conditioning circuit or an analogue-to-digital converter on the one side and energy harvesting systems on the other side are two key ...
    • Unveiling nonlinear dynamics in resonant inductively coupled wireless power transfer 

      Bou Balust, Elisenda; El Aroudi, Abdelali; Fisher, Peter; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      Coupled magnetic resonance is considered to be a key enabling technology for mid-range wireless power transfer. Models and systems have hitherto considered linear resonators as underlying dynamics, thereby limiting practical ...
    • UPCSAT-1, demostrador CubeSat para observación terrestre 

      Jové Casulleras, Roger; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Bou Balust, Elisenda; Ramos Castro, Juan José; Alarcón Cot, Eduardo José; Alonso Arroyo, Alberto (2013)
      Conference lecture
      Restricted access - publisher's policy
      UPCSat-1, es el primer proyecto de la Universitat Politécnica de Catalunya para construir y lanzar un pico- satélite. El objetivo principal de este proyecto es construir, ensamblar, testear y poner en órbita baja ...
    • ViTS: Video tagging system from massive web multimedia collections 

      Fernàndez, Dèlia; Varas, David; Espadaler, Joan; Masuda, Issey; Ferreira, Jordi; Woodward, Alejandro; Rodríguez, David; Giró Nieto, Xavier; Riveiro, Juan Carlos; Bou Balust, Elisenda (IEEE Press, 2017)
      Conference report
      Open Access
      The popularization of multimedia content on the Web has arised the need to automatically understand, index and retrieve it. In this paper we present ViTS, an automatic Video Tagging System which learns from videos, their ...
    • VLX-Stories: a semantically linked event platform for media publishers 

      Fernández Cañellas, Dèlia; Espadaler, Joan; Garolera, Blai; Rodríguez, David; Canet, Gemma; Colom, Aleix; Rimmek, Joan Marco; Giró Nieto, Xavier; Bou Balust, Elisenda; Riveiro, Juan Carlos (CEUR-WS.org, 2019)
      Conference lecture
      Open Access
      In the recent years, video sharing in social media from different video recording devices has resulted in a exponential growth of videos on the Internet. Such video data is continuously increasing with daily recordings ...
    • VLX-Stories: building an online Event Knowledge Base with Emerging Entity detection 

      Fernández Cañellas, Dèlia; Espadaler, Joan; Rodríguez, David; Garolera, Blai; Canet Tarrés, Gemma; Colom Serra, Aleix; Rimmek, Joan Marco; Giró Nieto, Xavier; Bou Balust, Elisenda; Riveiro, Juan Carlos (Springer, 2019)
      Conference lecture
      Restricted access - publisher's policy
      We present an online multilingual system for event detection and comprehension from media feeds. The system retrieves information from news sites, aggregates them into events (event detection), and summarizes them by ...
    • What is going on in the world? A display platform for media understanding 

      Fernàndez, Dèlia; Varas, David; Espadaler, Joan; Masuda, Issey; Giró Nieto, Xavier; Riveiro, Juan Carlos; Bou Balust, Elisenda (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      News broadcasters and on-line publishers daily generate a large amount of articles and videos describing events currently happening in the world. In this work, we present a system that automatically indexes videos from a ...
    • Wireless power transfer : fueling the dots 

      Bou Balust, Elisenda (Universitat Politècnica de Catalunya, 2017-07-17)
      Doctoral thesis
      Open Access
      Resonant Inductive Coupling Wireless Power Transfer (RIC-WPT) has been proven to provide very high power transfer efficiencies (above 80%) for moderate distances, and is hence foreseen as a key technology to enable wireless ...