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Ara es mostren els items 67-86 de 131

    • Impact of printing orientation on inter and intra-layer bonds in 3D printed thermoplastic elastomers: a study using acoustic emission and tensile tests 

      Adrover Monserrat, Bàrbara; García Vilana, Silvia; Sánchez Molina, David; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Martínez González, Eva; Travieso Rodríguez, José Antonio (Elsevier, 2023-09-22)
      Article
      Accés obert
      The use of the Material Extrusion technique with Thermoplastic Elastomers is currently growing because of the large number of benefits of this family of materials. They are processable materials with high flexibility, which ...

    • Impact of printing orientation on inter and intra-layer bonds in 3D printed thermoplastic elastomers: A study using acoustic emission and tensile tests 

      Adrover Monserrat, Bàrbara; García Vilana, Silvia; Sánchez Molina, David; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Martínez González, Eva; Travieso Rodríguez, José Antonio (Elsevier, 2023-09)
      Article
      Accés obert
      The use of the Material Extrusion technique with Thermoplastic Elastomers is currently growing because of the large number of benefits of this family of materials. They are processable materials with high flexibility, which ...

    • Impresión 3D: Herramienta para la creación de vocación por las carreras técnicas 

      Jerez Mesa, Ramón; Travieso Rodríguez, José Antonio; Llumà Fuentes, Jordi; Gómez Gras, Giovanni (2021)
      Comunicació de congrés
      Accés obert
      La finalidad de este artículo es presentar los resultados de una serie de acciones llevadas a cabo para ayudar a crear y consolidar, en un grupo de estudiantes de educación secundaria, vocación hacia las carreras de ...

    • In-situ consolidation of nanocrystalline aluminium by ball milling 

      Solà Saracibar, Joan; Llumà Fuentes, Jordi; Jorba Peiró, Jordi (2011)
      Text en actes de congrés
      Accés obert
      Bulk nanocrystalline aluminium spheres were produced by in situ consolidation of commercially pure aluminium powder by ball milling at room temperature. The effect of four milling variables on the in situ consolidation ...

    • Influence of anthopometric variables on the mechanical properties of human rib cortical bone 

      Velázquez Ameijide, Juan; García Vilana, Silvia; Sánchez Molina, David; Martínez González, Eva; Llumà Fuentes, Jordi; Rebollo-Soria, M. Carmen; Arregui Dalmases, Carlos (Institute of Physics (IOP), 2021-05-01)
      Article
      Accés obert
      Objective. The mechanical properties of ribs from a large number of post-mortem human subjects (PMHS) were analyzed to search for variation according to age, sex or BMI in the sample. A large sample of specimens from ...

    • Influence of the stainless-steel microstructure on tribological behavior and surface integrity after ball burnishing 

      Torres Chamorro, Lisbeth Alejandra; Cuadrado Lafoz, Núria; Llumà Fuentes, Jordi; Vilaseca, Montse; Travieso Rodríguez, José Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2022-12-10)
      Article
      Accés obert
      Burnishing is a plastic deformation process that reduces roughness while increasing hardness by introducing compressive residual stresses near the surface zone. These improvements will depend mainly on two fundamental ...

    • Injury metrics for assessing the risk of acute subdural hematoma in traumatic events 

      García Vilana, Silvia; Sánchez Molina, David; Velázquez Ameijide, Juan; Llumà Fuentes, Jordi (2021-12-17)
      Article
      Accés obert
      Worldwide, the ocurrence of acute subdural hematomas (ASDHs) in road traffic crashes is a major public health problem. ASDHs are usually produced by loss of structural integrity of one of the cerebral bridging veins (CBVs) ...

    • Investigation of ball burnishing process using vibration and acoustic emission sensors 

      Fernández Osete, Ismael; Velázquez Corral, Eric; Marqués Salvador, Jordi-Adalbert; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Travieso Rodríguez, José Antonio (Institute of Physics (IOP), 2021-10-01)
      Article
      Accés obert
      In this paper, a ball burnishing tool mounted in a CNC lathe is characterized. This tool may work as vibration assisted ball-burnishing tool and in conventional way. The characterization consists of acoustic emission ...

    • El Joc de rol com a eina d’aprenentatge 

      Salán Ballesteros, Maria Núria; Rupérez de Gracia, Elisa; Illescas Fernandez, Silvia; Palou Prats, Josep; Tafzi, Khalil; Juan Muñoz, Jaime; Barahona Navarro, Francisco J.; Llumà Fuentes, Jordi; Jorba Peiró, Jordi; Fernández Aguado, Enrique; Rodríguez Rius, Daniel (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2014-04-24)
      Text en actes de congrés
      Accés obert
      El paradigma de Bolonya i les metodologies actives han possibilitat la incorporació de competències i processos d'avaluació continuada que afavoreixen que l'estudiantat formi part del mateix procés d'aprenentatge. S’ha ...

    • El Joc de rol com a eina d’aprenentatge en assignatures de ciència i tecnologia de materials 

      Salán Ballesteros, Maria Núria; Rupérez de Gracia, Elisa; Illescas Fernandez, Silvia; Jorba Peiró, Jordi; Llumà Fuentes, Jordi; Rodríguez Rius, Daniel; Fernández, E.; Tafzi, Khalil; Domingo, S. (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2012-07-06)
      Text en actes de congrés / Comunicació de congrés
      Accés obert
      La incorporació de les universitats europees a l'EHEA ha conduit a la remodelació de plans d'estudi i també, a la redefinició de protagonismes en el procés d'ensenyament-aprenentatge en l'àmbit universitari. Així, el ...

    • Low temperature magnetization and resistivity measurements in Co based soft magnetic microwires 

      Tejada, J; Llumà Fuentes, Jordi; Vazquez, M; Hernàndez, J M; Ruiz, J M; Garcia-Benitez, J M; Zhukov, A; Castaño, F J; Zhang, X X (1999-05)
      Article
      Accés obert
      Magnetization and resistivity measurements, embracing a temperature range 2-300 K, have been performed in glass-coated Co6sMnTSiloBls amorphous microwires. The relation between both types of measurements is analysed. Similar ...

    • Magnetic susceptibility of sodium rare-rarth fluorites Na[sub 0.5 -- x]R[sub 0.5 + x]F[sub 2 + 2x] (R [equals sign] Dy, Ho, Er, Tm, Yb) and some ordered phases 

      Bohigas Janoher, Xavier; Llumà Fuentes, Jordi; Tejada, J.; Krivandina, E.A.; Sobolev, B.P. (2001-05)
      Article
      Accés restringit per política de l'editorial
      —Magnetic properties of the nonstoichiometric phases with the fluorite-type “defect” structure Na 0.4 R 0.6 F 2.2 ( R = Ho, Er, Tm, Yb) and Na 0.35 Dy 0.65 F 2.3 have been studied as well as some ordered ...

    • Measurement of elastic constants on nanostructured iron and copper 

      Roca Vallmajor, Antoni; Llumà Fuentes, Jordi; Jorba Peiró, Jordi; Llorca Isern, Núria (Trans Tech Publications, 2010)
      Text en actes de congrés
      Accés restringit per decisió de l'autor

    • Mechanical behavior of blood vessels: elastic and viscoelastic contributions 

      Sánchez Molina, David; García Vilana, Silvia; Llumà Fuentes, Jordi; Galtés Vicente, Ignasi; Velázquez Ameijide, Juan; Rebollo-Soria, M. Carmen; Arregui Dalmases, Carlos (2021-08-26)
      Article
      Accés obert
      The mechanical properties of the cerebral bridging veins (CBVs) were studied using advanced microtensile equipment. Detailed high-quality curves were obtained at different strain rates, showing a clearly nonlinear stress–strain ...

    • Mechanical characterization of thermoplastic elastomers based on olefin processed through material extrusion 

      Adrover Monserrat, Bàrbara; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Travieso Rodríguez, José Antonio (Springer Nature, 2023-05-12)
      Article
      Accés obert
      Thermoplastic elastomeric materials are processable through 3D printing. These materials demonstrate excellent mechanical properties, along with good flexibility. A better understanding of the creation of bonds between the ...

    • Mechanical properties of 3D-printing polylactic acid parts subjected to bending stress and fatigue testing 

      Travieso Rodríguez, José Antonio; Jerez Mesa, Ramón; Llumà Fuentes, Jordi; Traver Ramos, Oriol; Gómez Gras, Giovanni; Roa Rovira, Joan Josep (Multidisciplinary Digital Publishing Institute (MDPI), 2019-11-22)
      Article
      Accés obert
      This paper aims to analyse the mechanical properties response of polylactic acid (PLA) parts manufactured through fused filament fabrication. The influence of six manufacturing factors (layer height, filament width, fill ...

    • Mechanical property characterization and simulation of fused deposition modeling Polycarbonate parts 

      Domingo Espín, Miquel; Puigoriol Forcada, Josep M.; García Granada, Andrés Amador; Llumà Fuentes, Jordi; Borrós Gómez, Salvador; Reyes Pozo, Guillermo (2015-10-15)
      Article
      Accés restringit per política de l'editorial
      Building end-use functional parts with additive manufacturing (AM) technologies is a challenging task. Several factors influence their surface finish, dimensional accuracy, mechanical properties and cost. Their orientation ...

    • Mechanical strengthening in S235JR steel sheets through vibration-assisted ball burnishing 

      Llumà Fuentes, Jordi; Gómez Gras, Giovanni; Jerez Mesa, Ramón; Rue Mascarell, Jaume; Travieso Rodríguez, José Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2020-07-28)
      Article
      Accés obert
      The superficial effect of hardening caused after vibration-assisted ball burnishing and its consequences in the tensile behavior of a carbon steel material are studied in this paper. As ball burnishing affects the material ...

    • Modelo para predecir el tiempo de pulido de las superfícies de moldes 

      González Rojas, Hernán Alberto; Travieso Rodríguez, José Antonio; Jorba Peiró, Jordi; Llumà Fuentes, Jordi (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • Monitoring of processing conditions of an ultrasonic vibration-assisted ball-burnishing process 

      Estévez Urra, Aida; Llumà Fuentes, Jordi; Jerez Mesa, Ramón; Travieso Rodríguez, José Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2020-04-30)
      Article
      Accés obert
      Although numerous references present the beneficial effects on surface integrity of ultrasonic vibration-assisted ball burnishing (UVABB), nothing has been reported about the dynamic behavior of the UVABB tool, workpiece, ...