Search results for "ciencias tecnológicas"
showing 10 items of 471 documents
Tuning the Photocatalytic Activity of Ti-Based Metal-Organic Frameworks through Modulator Defect-Engineered Functionalization.
2022
Defect engineering is a valuable tool to tune the photocatalytic activity of metal–organic frameworks (MOFs). Inducing defects through the attachment of functionalized modulators can introduce cooperative units that can tune the bandgap of the material and enhance their chemical, thermal, and photostabilities among other properties. However, the majority of defect engineering studies for photocatalytic applications are limited to Zr-based MOFs, and there is still a lack of interrelation between synthetic variables, the resultant MOF properties, and their effect on their photocatalytic performance. We report a comprehensive study on the defect engineering of the titanium heterometallic MOF M…
Estudio de la formación de biomasa granular en el tratamiento anaerobio de disolventes orgánicos en reactores de alta carga
2019
La contaminación atmosférica constituye uno de los principales problemas medioambientales en la actualidad, afectando a los ecosistemas y a la salud de los seres humanos a nivel mundial. Los compuestos orgánicos volátiles (COV), emitidos principalmente a partir del uso de disolventes en procesos industriales, contribuyen de manera importante a la contaminación atmosférica, razón por la cual, las industrias emisoras deben ajustarse a la normativa vigente, reduciendo sus emisiones y aplicando técnicas de control para el tratamiento y la eliminación de estos contaminantes atmosféricos. Las tecnologías biológicas se han mostrado eficaces a nivel técnico y económico para la depuración de las emi…
A comparative analysis of two immersive virtual reality systems in the integration and visualization of natural hand interaction
2022
AbstractIt is generally accepted that the use of natural interaction provides a positive impact in Virtual Reality (VR) applications. Therefore, it is important to understand what is the best way to integrate and visualize this feature in VR. For this reason, this paper presents a comparative study of the integration of natural hand interaction in two immersive VR systems: a Cave Audio Visual Experience (CAVE) system –where users’ real hands are visible– and a non-see-through Head-Mounted Display (HMD) system –where only a virtual representation of the hands is possible–. In order to test the suitability of using this type of interaction in a CAVE and compare it to an HMD, we raise six rese…
High-pressure study of the aurophilic topological Dirac material AuI
2022
We endeavour to explore the high-pressure study in the aurophilic AuI within the state-of-the-art of first principles. The impediment of expressing precise ground-state features of aurophilic compounds that had afflicted prior theoretical research has been resolved by incorporating van der Waals corrections (vdw). Mechanical and dynamical stability are ensured at ambient using the computed elastic constants and phonon dispersion curves. The dynamical instability is triggered by the application of pressure in AuI, as evidenced by the softening of an acoustic mode (Eu) at ∼7 GPa. Non-adherence of estimated elastic constants to the Born stability criterion at this pressure illustrates the syst…
The innovation projects as a training resource in the Teacher's Degree
2017
Los cambios producidos en todos los ámbitos de la vida como consecuencia del desarrollo de la Sociedad de la Información y la Comunicación tiene su reflejo en la Educación Superior y en la necesaria adaptación tanto de los planes de estudio como de la formación del profesorado estas nuevas necesidades. En este sentido, desde el Espacio Europeo de Educación Superior se aboga por la formación en competencias así como por la implementación de metodologías activas con tecnología. En este estudio se propone la utilización de una metodología eminentemente activa, cooperativa y con tecnologías para la construcción de proyectos de innovación educativa como recurso para el desarrollo de buenas práct…
Mixed Reality Annotation of Robotic-Assisted Surgery videos with real- time tracking and stereo matching
2023
Robotic-Assisted Surgery (RAS) is beginning to unlock its potential. However, despite the latest advances in RAS, the steep learning curve of RAS devices remains a problem. A common teaching resource in surgery is the use of videos of previous procedures, which in RAS are almost always stereoscopic. It is important to be able to add virtual annotations onto these videos so that certain elements of the surgical process are tracked and highlighted during the teaching session. Including virtual annotations in stereoscopic videos turns them into Mixed Reality (MR) experiences, in which tissues, tools and procedures are better observed. However, an MR-based annotation of objects requires trackin…
Time synchronization enhancements in wireless networks with ultra wide band communications
2022
The emergence of low cost Ultra Wide Band (UWB) transceivers has enabled the implementation of Wireless Sensor Networks (WSN) based on this communication technology. These networks are composed of distributed autonomous low cost nodes (also known as motes) with their own processing unit, memory and communications. Usually these nodes are power-limited and due to the poor performance and quality of their clocks, time synchronization is in the order of milliseconds and in some specific scenarios till microseconds. The integration of commercial UWB transceivers in these nodes can improve the synchronization accuracy. In particular, we focus on WSN nodes based on off-the-shelf commercial produc…
From ILS to Library Services Platforms: needs and difficulties for change in a university library
2014
Presentación realizada en las Jornadas Adlug 2014 sobre la situación actual de los sistemas de gestión bibliotecaria y sus perspectivas de futuro
Editorial : Investigación e innovación sobre la Educación Digit@l
2018
Editorial