Now showing items 19384-19403 of 79830

  • Day One: instrucciones de acceso al curso 

    Gaya Roqueta, Berta (2014-10-15)
    Audiovisual
    Open Access
  • Day One: instructions of access and technical incidents 

    Gaya Roqueta, Berta (2014-11-26)
    Audiovisual
    Open Access
  • Day One: key concepts 

    Gaya Roqueta, Berta (2014-11-26)
    Audiovisual
    Open Access
  • Day-ahead bidding strategies for demand-side expected cost minimization 

    Atzeni, Italo; García Ordoñez, Luis; Scutari, Gesualdo; Palomar, D.P.; Rodríguez Fonollosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Restricted access - publisher's policy
    Day-ahead DSM techniques in the smart grid allow the supply-side to know in advance an estimation of the amount of energy to be provided to the demand-side during the upcoming day. However, a pure day-ahead optimization ...
  • Day-ahead micro-market design for distributed energy resources 

    Olivella Rosell, Pol; Viñals Canal, Guillem; Sumper, Andreas; Villafafila Robles, Roberto; Bremdal, Bernt; Ilieva, Iliana; Ottesen, Stig Odegaard (2016)
    Conference report
    Open Access
  • Daytime Ayahuasca administration modulates REM and slow-wave sleep in healthy volunteers 

    Barbanoj, Manel J.; Riba, J; Clos, S; Gimenez, S; Grasa, E; Romero Lafuente, Sergio (2008-02)
    Article
    Open Access
    Ayahuasca is a traditional South American psychoactive beverage and the central sacrament of Brazilianbased religious groups, with followers in Europe and the United States. The tea contains the psychedelic indole ...
  • La Dàrsena: centre de creació contemporània. 

    Ocaña Carbonell, Clara (Universitat Politècnica de Catalunya, 2015-05)
    Master thesis (pre-Bologna period)
    Open Access
  • DBCase 2 

    Vicente Pérez, Josafat (Universitat Politècnica de Catalunya, 2007-06-18)
    Master thesis (pre-Bologna period)
    Open Access
  • dbstats: una llibreria d'R que implementa els mètodes estadístics basats en distàncies 

    Caballé Mestres, Adrià (Universitat Politècnica de Catalunya, 2012-06)
    Master thesis
    Open Access
    Els mètodes estadístics basats en distàncies són una alternativa o complement a les tècniques clàssiques més habituals en l'estadística com el model lineal, el model lineal generalitzat, o les seves versions no paramètriques. ...
  • DC temperature measurements for power gain monitoring in RF power amplifiers 

    Altet Sanahujes, Josep; Mateo Peña, Diego; Gómez Salinas, Dídac; Perpiñà, Xavier; Jordà, Xavier (IEEE, 2012)
    Conference report
    Restricted access - publisher's policy
    In this paper we demonstrate that the steady state temperature increase due to the power dissipated by the circuit under test can be used as observable to test the gain of a 2GHz linear class A Power Amplifier. As a proof ...
  • DC temperature measurements to characterize the central frequency and 3 dB bandwidth in mmW power amplifiers 

    Aragonès Cervera, Xavier; Mateo Peña, Diego; González Jiménez, José Luis; Vidal López, Eva María; Gómez Salinas, Didac; Martineau, B; Altet Sanahujes, Josep (2015-11)
    Article
    Open Access
    This letter shows how a temperature sensor and a simple DC voltage multimeter can be used as instruments to determine the central frequency and 3 dB bandwidth of a 60 GHz linear power amplifier (PA). Compared to previous ...
  • DC voltage control and power sharing in multiterminal DC grids based on optimal DC power flow and voltage-droop strategy 

    Rouzbehi, Kumars; Miranian, Arash; Luna Alloza, Álvaro; Rodríguez Cortés, Pedro (Institute of Electrical and Electronics Engineers (IEEE), 2014-07-11)
    Article
    Restricted access - publisher's policy
    This paper proposes an effective dc voltage and power-sharing control structure for multiterminal dc (MTDC) grids based on an optimal power flow (OPF) procedure and voltage-droop control implemented in the different ...
  • DC voltage droop control design for multiterminal HVDC systems considering AC and DC grid dynamics 

    Prieto Araujo, Eduardo; Egea Àlvarez, Agustí; Fekriasl, Sajjad; Gomis Bellmunt, Oriol (2016-04-01)
    Article
    Open Access
    This paper focuses on the droop-based dc voltage control design for multiterminal VSC-HVDC grid systems, considering the ac and the dc system dynamics. The droop control design relies on detailed linearized models of the ...
  • DC-9: El sistema de precaución y avisos de emergencia 

    Bermejo Balson, Pablo (Universitat Politècnica de Catalunya, 2014-01-30)
    Bachelor thesis
    Open Access
    This final career work has the aim to design a caution system and their emergency warnings of a DC-9, in such a way that is a part of a construction proyect of a flight simulator. The cockpit where is going to be installed ...
  • DC-link voltage oscilations reduction during unbalanced grid faults for high power wind turbines 

    Miranda, Hernan; Teodorescu, Remus; Rodríguez Cortés, Pedro; Helle, L. (2011)
    Conference report
    Restricted access - publisher's policy
    During unbalanced grid voltage faults the Power injected to the grid experiences 100Hz oscillations as a result of interactions between positive and negative sequence components of three-phase voltages and currents. These ...
  • DC/DC Converter Family development for Spacecraft Communications reception equipment 

    Albiol Dalmau, Miquel (Universitat Politècnica de Catalunya, 2013-09-16)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    Covenantee: Mier Comunicaciones
    [ANGLÈS] The work behind this thesis has consisted on the development of a small family of DC/DC converters to supply radiofrequency equipment in space applications. Overall activity started mid-2009 and keeps ongoing as ...
  • DCM-232 converter: a PV transformerless three-phase inverter 

    Rodríguez Cortés, Pedro; Muñoz Aguilar, Raúl Santiago; Vázquez Guzmán, Gerardo; Candela García, José Ignacio; Aldabas Rubira, Emiliano; Etxeberria Otadui, Ion (IEEE, 2011)
    Conference report
    Restricted access - publisher's policy
    Nowadays transformerless PV converters are widely used in the energy conversion stage of a PV plant, because their good characteristics regarding efficiency, size, cost and weight. The main problem in transformerless ...
  • DDGacc: boosting dynamic DDG-based binary optimizations through specialized hardware support 

    Pavlou, Demos; Gibert Codina, Enric; Latorre, Fernando; González Colás, Antonio María (2011)
    Conference report
    Restricted access - confidentiality agreement
    Dynamic Binary Translators (DBT) and Dynamic Binary Opti- mization (DBO) by software are used widely for several reasons including performance, design simplification and virtualization. However, the software layer in ...
  • DDT: a research tool for automatic data distribution in HPF 

    Ayguadé Parra, Eduard; García Almiñana, Jordi; Gironès Medina, Mercè; Grande Ayan, Ma. Luz; Labarta Mancho, Jesús José (1997-03)
    Article
    Open Access
    This article describes the main features and implementation of our automatic data distribution research tool. The tool (DDT) accepts programs written in Fortran 77 and generates High Performance Fortran (HPF) directives ...
  • De "Caixa negra" a universitat relacional: primeres passes cap a una societat del coneixement 

    Gómez Enrich, Roser; Melo, Maria Jesús; Monfort, Lluís (Centre per a la Sostenibilitat, 2007-07-12)
    Conference report / Conference lecture
    Open Access
    La universitat ha estat tradicionalment una caixa negra on la societat hi entra amb dos inputs concrets: demanda de formació i de recerca (específica i genèrica), i els outputs que la universitat retorna són persones ...