Comunicaciones a congresos, conferencias (CEIT)
Permanent URI for this collectionhttps://hdl.handle.net/10171/70230
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- International Conference on Multimodal Interfaces for Skills Transfer.(2009-12) Gutierrez, T. (Teresa); Sanchez-Tapia, E.J. (Emilio José)This volume collects the work presented at the 1st international Conference on Multimodal interfaces for Skills Transfer (SKILLS09), held in Bilbao (Spain) on 15th -16th December, 2009, and promoted by the European SKILLS Integrated Project. SKILLS09 is a major forum for researchers in the field of Multimodal Interfaces for human Skills transfer. Training on human skills is state-of-the-art research on Human-Machine-Interfaces (HMI) and Psychology. There are many manual skills and activities where human learners find the symbolic and iconic information difficult to remap into movement patterns. Something that is represented in an objective space must be translated into the subjective space of the body, where many actions are automatic and not consciously controlled. Enactive representations of the task seek to bridge this gap. Enactive knowledge is not simply multisensory mediated knowledge, but knowledge stored in the form of motor responses and acquired by the act of “doing”. A typical example of enactive knowledge is constituted by the competence required for tasks such as driving a car, playing a musical instrument, modelling objects from clay, performing sports, etc., which would be difficult to describe in an iconic or symbolic form. This type of knowledge transmission can be considered the most direct, in natural and intuitive terms, since it is based on the experience and on the perceptual responses to motor acts. This conference presents and discusses recent developments in the application of the concept of Enaction for the transfer of manual human skills, that is, “Enaction on Skills”. Thus, the presented papers cover topics related to skills conceptualization and transfer process, from expert’s skills capturing to skill rendering and assessment, without forgetting the required technologies that enable this process. Finally, we want to thank everyone that made possible this conference: authors, LABEIN, CEIT, SKILLS consortium, European Union, Basque Government and all committee members for the high quality of work they have done.
- Effect of intercritical deformation on final microstructure in low carbon grades.(2017) Isasti-Gordobil, N. (Nerea); Rodriguez-Ibabe, J.M. (José María); Uranga-Zuaznabar, P. (Peio); Mayo-Ijurra, U. (Unai)Heavy gauge line pipe and structural steel plate materials are often rolled in the two-phase region for strength reasons. However, strength and toughness show opposite trends and the exact effect of each rolling process parameter remains unclear. Even though intercritical rolling has been widely studied, further understanding of the evolution of the microstructure under intercritical conditions and the effect of different austenite-ferrite phase contents at high temperature is needed to define stable processing windows. For that purpose, laboratory thermomechanical simulations reproducing intercritical rolling conditions have been performed in low carbon steels. A methodology able to distinguish deformed ferrite from non-deformed ferrite was developed using Electron Backscattered Diffraction (EBSD) technique. The effect of chemical composition, austenite-ferrite balance and deformation on the final microstructure was evaluated. This analysis is intended to deepen the knowledge of the effect that intercritical rolling has on the microstructural evolution and, by extension, on the mechanical properties.
- Relation between microstructure and mechanical properties on intercritically deformed low carbon steels.(Elsevier, 2020) Isasti-Gordobil, N. (Nerea); Rodriguez-Ibabe, J.M. (José María); Uranga-Zuaznabar, P. (Peio); Mayo-Ijurra, U. (Unai)Intercritical rolling is often applied in order to improve the mechanical properties of heavy gauge structural steel plates. However, these products have large temperature and deformation gradients both over thickness and width, being the control of the process very complex. Considering this issue, it is important to analyze the microstructural evolution under intercritical conditions and how the different process parameters like deformation temperature, chemical composition etc. influence on the final mechanical properties. For that purpose, plane strain compression tests simulating intercritical rolling conditions were carried out for a CMn and a NbV microalloyed steel. Tensile tests perfomed for various austeniteferrite contents prior to the last deformation, show that the reduction of deformation temperature increases strength properties. However, ferrite fractions higher than 25% prior to the last deformation, reduce significantly the ductility. These analyses give the necessary background for the definition of stable process windows that optimize the strength-ductility property balance of intercritically rolled products. Similarly, the estimation of the contribution of different strengthening mechanisms such as, solid solution, grain size and dislocation density, allows the prediction of the yield strength of an intercritically deformed microstructure.
- Functional, thermal and EMC analysis for a safety critical analogue design applied to a transportation systems(Springer, 2011) De No Legarán, J.(Joaquín); Mendizabal-Samper, J. (Jaizki); Adin-Marcos, I.(Iñigo); Alvarado-Videira, U.(Unai); Melendez Lagunilla, J.(Juan); Del Portillo San Miguel, J.(Jon)Safety-critical equipment depends on the study of functional, thermal, EMC (Electromagnetic Compatibility) and RAMS (Reliability, Availability, Maintainability and Safety) fields. The variation of one area characteristic could result in a failure to fulfil safety requirements. Traditionally, thermal, EMC or RAMS issues were only considered once the design was done. This paper proposes a novel analogue equipment design methodology by studying these areas dependently from the beginning of the design process. Each area requirements and design parameters and the relation among them are defined qualitatively and quantitatively. Based on these dependences among all the areas, the cross-influence of each parameter variation in other areas requirements is demonstrated. The obtained results are intended to aid the fulfilment of requirements of the design of any safety critical analogue circuit, and to help designers to know beforehand the consequences of any change in the design, saving time and money. The application of this methodology in a SIL 2 RF transmitter is shown and the improvement and worsening of requirements depending on the parameters variation is exposed.