Ara es mostren els items 8979-8998 de 244457

    • Active flow control on cambered airfoils at ultralow Reynolds using synthetic jets 

      Valdepeñas Pujol, Pau (Universitat Politècnica de Catalunya, 2017-09-21)
      Treball Final de Grau
      Accés obert
      Active flow control methods have been widely studied for more than a decade in order to improve the airfoil's efficiency. This study is focused on fluidic actuation (the addition or subtraction of momentum to/from the ...
    • Active flow control on laminar flow over a backward facing step 

      Mushyam, Aditya; Bergadà Granyó, Josep Maria (Institute of Physics (IOP), 2015-09-21)
      Article
      Accés obert
      In the present study, two dimensional flow over a backward-facing step in laminar flow regime with application of active flow control (AFC) technique is analysed. The aim of the present work is to gauge the effectiveness ...
    • Active flow control on SD7003 airfoil using synthetic jets 

      Tousi, Navid Monshi; Bergadà Granyó, Josep Maria; Rodríguez Pérez, Ivette María (2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The present paper focuses on applying the Active Flow Control (AFC) technology on the Selig-Donovan 7003 (SD7003) airfoil at Reynolds number 60,000, the idea is to employ synthetic jets in order to modify the lift and drag ...
    • Active flow control optimisation on SD7003 airfoil at pre and post-stall angles of attack using synthetic jets 

      Monshi Tousi, Navid; Coma Company, Martí; Bergadà Granyó, Josep Maria; Pons Prats, Jordi; Mellibovsky Elstein, Fernando; Bugeda Castelltort, Gabriel (2021-06-10)
      Article
      Accés obert
      The use of Active Flow Control (AFC) technologies to modify the forces acting on streamlined bodies is one of the most active research fields in aerodynamics. For each particular application, finding the optimum set of AFC ...
    • Active flow control optimization on Selig Donovan 7003 airfoil 

      Monshi Tousi, Navid (Universitat Politècnica de Catalunya, 2023-06-16)
      Tesi
      Accés obert
      (English) The PhD focuses on the study of the flow around an airfoil at different Angles of Attack (AoA) with and without the implementation of Active Flow Control (AFC), while maintaining the Reynolds number constant at ...
    • Active Flow Control Study Applied to a backwards facing inclined step II 

      Gibert Martínez, Isaac (Universitat Politècnica de Catalunya, 2018-06)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      La idea general de este estudio recae en la implementación de sistemas de control activo de flujo con la finalidad de mejorar las condiciones en las que este se desarrolla y beneficiar de alguna forma al tipo de producto ...
    • (Active Flow Control) AFC study on an airfoil 

      Calvo San Emeterio, Carlos (Universitat Politècnica de Catalunya, 2016-09)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
    • Active forces shape the metaphase spindle through a mechanical instability 

      Oriola Santandreu, David; Jülicher, Frank; Brugués, Jan (2020-07-14)
      Article
      Accés obert
      The metaphase spindle is a dynamic structure orchestrating chromosome segregation during cell division. Recently, soft matter approaches have shown that the spindle behaves as an active liquid crystal. Still, it remains ...
    • Active garment recognition and target grasping point detection using deep learning 

      Corona Puyane, Enric; Alenyà Ribas, Guillem; Gabas Nova, Antonio; Torras, Carme (2018-02-01)
      Article
      Accés obert
      Identification and bi-manual handling of deformable objects, like textiles, is one of the most challenging tasks in the field of industrial and service robotics. Their unpredictable shape and pose makes it very difficult ...
    • Active gate drivers for high-frequency application of SiC MOSFETs 

      Paredes Camacho, Alejandro (Universitat Politècnica de Catalunya, 2020-07-17)
      Tesi
      Accés obert
      The trend in the development of power converters is focused on efficient systems with high power density, reliability and low cost. The challenges to cover the new power converters requirements are mainly concentered on ...
    • Active gate switching control of IGBT to improve efficiency in high power density converters 

      Ghorbani, Hamidreza (Universitat Politècnica de Catalunya, 2019-09-18)
      Tesi
      Accés obert
      Insulated gate bipolar transistor (IGBT) power semiconductors are widely employed in industrial applications. This power switch capability in high voltage blocking and high current-carrying has expanded its use in power ...
    • Active harmònic filtering in HV grids 

      Puig Miret, Marc (Universitat Politècnica de Catalunya, 2021-09-10)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Katholieke Universiteit te Leuven
      In the last decades new technology approaches were rising until the point to make a new tendency in the electrical transmission system. Improvements in the converter’s technology have made high voltage direct current (HVDC) ...
    • Active illumination focus variation 

      Bermúdez, Carlos; Martínez Marín, Pol; Cadevall Artigues, Cristina; Artigas Pursals, Roger (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Focus Variation (FV) has been successfully employed for the three-dimensional measurement of rough surfaces. The technique relies on scanning the sample under inspection across the depth of focus of a high numerical aperture ...
    • Active inductor-based tunable impedance matching network for RF power amplifier application 

      Saberkari, Alireza; Ziabakhsh, Saman; Martínez García, Herminio; Alarcón Cot, Eduardo José (2015-08)
      Article
      Accés obert
      This paper presents the use of a new structure of active inductor named cascoded flipped-active inductor (CASFAI) in a T-type high-pass tunable output matching network of a class-E RF power amplifier (RFPA) to control the ...
    • Active inductor–based tunable impedance matching network for RF power amplifier application 

      Saberkari, Alireza; Ziabakhsh, Saman; Martínez García, Herminio; Alarcón Cot, Eduardo José (2016-01)
      Article
      Accés obert
    • Active learning algorithms for multitopic classification 

      Bonafonte Pardàs, Guillem (Universitat Politècnica de Catalunya, 2021-07-08)
      Projecte Final de Màster Oficial
      Accés obert
      In this master thesis we develop a model that surpasses previous studies to be able to detect cyberbullying and other disorders that are a common behaviour in teenagers. We analyze short sentences in social media with new ...
    • Active learning and autonomous learning: an educational experience 

      Gómez Soberón, José Manuel Vicente; Gómez Soberón, M. Consolació; Gómez Soberón, Alberto (Active Learning for Engineering Education (ALE), 2009)
      Text en actes de congrés
      Accés obert
      The obtained experience in the active and the autonomous learning tasks execution in the teaching of the subject: Reinforced Concrete Structures and Devices Construction, of the career of Technical Architecture by the ...
    • Active learning based laboratory towards engineering education 4.0 

      Delgado Prieto, Miquel; Fernández Sobrino, Ángel; Ruiz Soto, Lucía; Romero Durán, David; Fibla Biosca, Pere; Romeral Martínez, José Luis (2019)
      Text en actes de congrés
      Accés obert
      Universities have a relevant and essential key role to ensure knowledge and development of competencies in the current fourth industrial revolution called Industry 4.0. The Industry 4.0 promotes a set of digital technologies ...
    • Active learning for project management in civil engineering 

      Fillola Caraballo, Elena; Ramos Schneider, Gonzalo; Turmo Coderque, José (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
      Text en actes de congrés
      Accés obert
      Higher Educations studies in Spain were very much impacted by the Bologna Declaration. This was also so for the Civil Engineering curricula (Ingeniero de Caminos, Canales y Puertos). When the European Higher Education Area ...
    • Active learning in Crowdsourcing classification problems using Sampling Theory for graph signals 

      Maroto Morales, Javier Alejandro (Universitat Politècnica de Catalunya, 2017-05-15)
      Treball Final de Grau
      Accés obert
      Realitzat a/amb:   University of Southern California