Ara es mostren els items 1-20 de 41

    • Acoustic evaluation of modular greenery noise barriers 

      Lacasta Palacio, Ana María; Peñaranda Ayllón, Angelina; Rodríguez Cantalapiedra, Inma; Auguet Sangrá, Carlota E.; Bures, S.; Urrestarazu, M. (2016-12-01)
      Article
      Accés obert
      Green noise barriers have become an alternative means of reducing urban traffic noise. In this paper, the acoustic performance of a modular greenery noise barrier is evaluated. In situ measurements of noise reflection were ...
    • Acústica aplicada a la construcción 

      Auguet Sangrá, Carlota E.; Rodríguez Cantalapiedra, Inma (Universitat Politècnica de Catalunya, 1986-01)
      Apunts
      Accés obert
    • Acústica. Problemas y actividades 

      Auguet Sangrá, Carlota E.; Camí Babra, Enric (Universitat Politècnica de Catalunya, 1992-02)
      Apunts / Problema, exercici
      Accés obert
    • Archaeomagnetic study of a limekiln in the Les Ferreres Roman aqueduct, World Heritage Site of Tarraco 

      Casas, Lluís; Auguet Sangrá, Carlota E.; Guasch Ferré, Núria; Gómez Paccard, Miriam; Pitarch Martí, África; Prada Pérez, José Luís; Sanjurjo-Sánchez, Jorge; Menchón Bes, Joan; Badia Cortada, Marta; Díaz García, Moisés (2020-08-16)
      Article
      Accés obert
      The aqueduct of Les Ferreres is a major element of the Archaeological Ensemble of Tarraco. Although the ashlars of the aqueduct are stacked without mortar, lime was used in some parts and lime was certainly used in later ...
    • Behavior of NiTi wires for dampers and actuators in extreme conditions 

      Isalgué Buxeda, Antonio; Auguet Sangrá, Carlota E.; Grau, R.; Torra Ferré, Vicenç; Cinca i Luis, Núria; Fernández, J. (2015-09-01)
      Article
      Accés obert
      Shape memory alloys are considered smart materials because of their singular thermo-mechanical properties, due to a thermoelastic martensitic transformation, enabling possible uses as actuators (because of mechanical ...
    • Built in dampers for stayed cables in bridges via SMA. The SMARTeR-ESF project: a mesoscopic and macroscopic experimental analysis with numerical simulations 

      Torra Ferré, Vicenç; Auguet Sangrá, Carlota E.; Isalgué Buxeda, Antonio; Carreras, Guillem; Terriault, Patrick; Lovey, Francisco Carlos (Elsevier, 2013-04)
      Article
      Accés obert
      Shape Memory Alloys (SMAs) are good candidates for solid-state dampers appropriate for the oscillations of bridge stay cables because of their large recoverable strain, hysteresis and reasonable fatigue-life. This work ...
    • Diamagnetic interactions in superheated-superconducting granules under an external magnetic field 

      Peñaranda Ayllón, Angelina; Auguet Sangrá, Carlota E.; Ramírez de la Piscina Millán, Laureano; Girard, Tom A. (2002-11)
      Article
      Accés obert
      The study of the phase transitions produced in ensembles of metastable superconducting granules by magnetic field variations is important both for fundamental physics and for applications in particle detectors. Theoretical ...
    • Effects of strain aging in NiTi SMA wire for dampers 

      Isalgué Buxeda, Antonio; Auguet Sangrá, Carlota E.; Torra Ferré, Vicenç; Carreras, Guillem; Lovey, Francisco Carlos (Elsevier, 2015)
      Article
      Accés obert
      The thermo-mechanical properties of Shape Memory Alloys (SMA) as smart materials suggest their application as actuators, but also as dampers, thanks to the high damping properties during the hysteresis of the thermo-elastic ...
    • Effects of strain aging in NiTi SMA wires for dampers 

      Auguet Sangrá, Carlota E.; Isalgué Buxeda, Antonio; Torra, Vicenç; Carreras, Guillem; Lovey, Francisco Carlos (Universidad del Pais Vasco, 2014)
      Text en actes de congrés
      Accés obert
      SMA NiTi wires experience evolution under constrained aging. A strain and temperature aging sequence is designed and experimented, to ascertain the functionality of the dampers exposed to weathering
    • Elasticidad 

      Auguet Sangrá, Carlota E.; Camí Babra, Enric; Peñaranda Ayllón, Angelina (Universitat Politècnica de Catalunya, 1995-05)
      Problema, exercici
      Accés obert
    • Estática 

      Auguet Sangrá, Carlota E.; Rodríguez Cantalapiedra, Inma (Universitat Politècnica de Catalunya, 1985-12)
      Apunts / Problema, exercici
      Accés obert
    • External temperature effects on the hysteresis of NiTi wires in dampers for stay-cables 

      Torra Ferré, Vicenç; Carreras, Guillem; Casciati, Sara; Auguet Sangrá, Carlota E. (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
      Text en actes de congrés
      Accés obert
      The use of NiTi wires, one of the Shape Memory Alloy (SMA) materials that permits efficient damping in stayed cables for bridges, requires an appropriate behavior when exposed to the external temperature effects. The ...
    • Functional fatigue recovery of superelastic cycled NiTi wires based on near 100ºC aging treatments 

      Isalgué Buxeda, Antonio; Soul, Hugo; Yawny, Alejandro; Auguet Sangrá, Carlota E. (2015)
      Text en actes de congrés
      Accés obert
      Functional fatigue affecting superelastic behaviour of NiTi wires includes an accumulation of residual strain and an uneven decrement of transformation stress on cycling. Although this evolution is observed to diminish ...
    • Mecánica. Problemas de examen 

      Agea Tomás, José; Auguet Sangrá, Carlota E.; Camí Babra, Enric; Castellví Gironès, Pedro Juan; Echebarría Domínguez, Blas; Lacasta Palacio, Ana María; Peñaranda Ayllón, Angelina; Ramírez de la Piscina Millán, Laureano; Rodríguez Cantalapiedra, Inma (Universitat Politècnica de Catalunya, 2010-09)
      Apunts / Problema, exercici
      Accés obert
    • Microstructural effects of strain aging on NiTi pseudoelastic wires by synchrotron X-ray micro-diffraction 

      Isalgué Buxeda, Antonio; Auguet Sangrá, Carlota E.; Concustell, Amadeu; Cinca i Luis, Núria (2015)
      Comunicació de congrés
      Accés obert
      In this work, we explore the consequences of strain aging NiTi wires (2.46 mm diameter) at moderate temperatures (100ºC). The changes of the stress-strain behaviour on aged, as compared with non-aged wires, with comparatively ...
    • Microstructutal effects of strain aging on NiTi pseudoelastic wires by synchrotron X-ray micro-diffraction 

      Isalgué Buxeda, Antonio; Auguet Sangrá, Carlota E.; Concustell, Amadeu; Cinca i Luis, Núria (EDP Sciences, 2015-12)
      Capítol de llibre
      Accés obert
      Strain aging of NiTi wires and its structural consequences are studied by Synchrotron X-ray micro-diffraction
    • Modeling of spatiotemporal patterns in bacterias colonies 

      Lacasta Palacio, Ana María; Rodríguez Cantalapiedra, Inma; Auguet Sangrá, Carlota E.; Peñaranda Ayllón, Angelina; Ramírez de la Piscina Millán, Laureano (American Physical Society, 1999-06-30)
      Article
      Accés obert
      A diffusion-reaction model for the growth of bacterial colonies is presented. The often observed cooperative behavior developed by bacteria which increases their motility in adverse growth conditions is here introduced as ...
    • Ondas I. Movimiento ondulatorio. Propiedades 

      Auguet Sangrá, Carlota E.; Rodríguez Cantalapiedra, Inma; Camí Babra, Enric (Universitat Politècnica de Catalunya, 1990-02)
      Apunts
      Accés obert
    • Ordering kinetics evaluation of FeAl powders 

      Cinca i Luis, Núria; Isalgué Buxeda, Antonio; Auguet Sangrá, Carlota E.; Concustell, Amadeu; Cano, I. G.; Guilemany Casadamon, Josep Maria; Fauth, F. (2017-12-01)
      Article
      Accés obert
      In this study, time resolved X-ray diffraction experiments using synchrotron X-ray radiation have been performed to get insight on the time and temperature dependent atomic ordering of an intermetallic Fe-40Al (at.%) ...
    • Pre-stressed NiTi: effects of the thermodynamic forces and time 

      Torra Ferré, Vicenç; Isalgué Buxeda, Antonio; Auguet Sangrá, Carlota E.; Lovey, Francisco Carlos; Pelegrina, J.L.; Terriault, P. (2008-11-30)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The use of NiTi in damping devices for Civil Engineering requires stable behavior of the stress-strain curves with time and cycling. In particular, the use of pre-stressed samples improves the damping efficiency. Since ...