528 research outputs found
Estudio de viabilidad de un Centro Canino
Se estudiará la viabilidad que puede tener un centro de estas características en la provincia de Valladolid. Será un centro de adiestramiento y formación canino, especializado en el tratamiento con perros peligrosos. La labor consistirá en el control y la vigilancia de los perros, de manera que se pueda garantizar a los clientes que estos están avanzando. Con el adiestramiento cognitivo – emocional se quiere mejorar la relación con el perro, mediante la realización de actividades motivadoras, integrando el entrenamiento en el día a día de la mascota, potenciando el desarrollo del perro como animal social.Grado en Comerci
Pedestrian underpass in O Barco de Valdeorras between Caleras Street and Ramón y Cajal Street
El presente proyecto se redacta con el objetivo de solucionar los problemas de accesibilidad al paso subterráneo existente, que solamente dispone de acceso por escaleras. Además de solucionar también el problema de inseguridad que da un paso estrecho y mal iluminado. Se plantea como solución la construcción de un nuevo paso inferior mediante el método de “hincado de cajones”, éste método es el único que garantiza que, en ningún momento se va a ver interrumpido el tráfico ferroviario, siendo esto el factor determinante para la elección de esta alternativa sobre otras probablemente más baratas. Las actuaciones completas son las siguientes: -Construcción “in situ” del marco de hormigón armado en parcela contigua a la zona de actuación. -Formación de apeos de vía para garantizar que no se desplacen durante el hincado. -Construcción de pantallas de micropilotes que tienen doble función, sostenimiento durante el proceso de hincado y posteriormente sistemas de contención definitiva para el acceso Norte. El acceso Sur se realiza al abrigo de muros de hormigón armado en ménsula. -Construcción de rampas y escalera de los accesos.Traballo fin de grao (UDC.ETSECCP). Enxeñaría de Obras Públicas. Curso 2015/201
La payasita π en el país de las matemáticas
A comienzos del curso 2013/2014, la SADEM Agustín de Pedrayes recibió la propuesta de desarrollar unos talleres de matemáticas destinados a alumnado de educación infantil y primaria. Fruto de esta propuesta llegó la payasita pi a Gijón. En esta comunicación se describen cómo se gestaron los talleres, las actividades que componen los dos diseñados, cómo la payasita pi acompañó a los niños y niñas participantes en su paseo por el país de las matemáticas y algunas conclusiones. También son objetivos de esta comunicación dar a conocer la experiencia y compartirla con otras personas interesadas en la educación matemática en los primeros niveles escolares
Una ménsula del claustro de la catedral de León y su relación con la Anunciación de la Virgen de la Esperanza (h. 1288): La fortuna de un modelo en el ámbito leonés y castellano
En el claustro de la catedral de León existe una ménsula que viene a copiarla Anunciaciónformada porla Virgendela Esperanzay el Ángel, que en su día se ubicaban en los pilares torales de la propia seo. El estudio pretende poner de relieve la fortuna de este modelo por los reinos de León y Castilla, además de proponer una cronología para la repisa del claustro en función de fechas documentales y personajes representados
Robot guidance using machine vision techniques in industrial environments: A comparative review
In the factory of the future, most of the operations will be done by autonomous robots that need visual feedback to move around the working space avoiding obstacles, to work collaboratively with humans, to identify and locate the working parts, to complete the information provided by other sensors to improve their positioning accuracy, etc. Different vision techniques, such as photogrammetry, stereo vision, structured light, time of flight and laser triangulation, among others, are widely used for inspection and quality control processes in the industry and now for robot guidance. Choosing which type of vision system to use is highly dependent on the parts that need to be located or measured. Thus, in this paper a comparative review of different machine vision techniques for robot guidance is presented. This work analyzes accuracy, range and weight of the sensors, safety, processing time and environmental influences. Researchers and developers can take it as a background information for their future works
Building and Collapse of the Cadomian Orogen: A Plate-Scale Model Based on Structural Data From the SW Iberian Massif
The Cadomian Orogeny produced a subduction-related orogen along the periphery of Gondwana
and configured the pre-Variscan basement of the Iberian Massif. The architecture of the Cadomian Orogen
requires detailed structural analysis for reconstruction because of severe tectonic reworking during the
Paleozoic (Variscan cycle). Tectonometamorphic analysis and data compilation in SW Iberia (La Serena
Massif, Spain) have allowed the identification of three Cadomian deformation phases and further constrained
the global architecture and large-scale processes that contributed to the Ediacaran building and early Paleozoic
dismantling of the Cadomian Orogen. The first phase (DC1, prior to 573 Ma) favored tabular morphology in
plutons that intruded during the building of a continental arc. The second phase (DC2, 573–535 Ma) produced
an upright folding and contributed to further crustal thickening. The third phase of deformation (DC3,
ranging between ∼535 and ∼480 Ma) resulted in an orogen-parallel dome with oblique extensional flow. DC1
represents the crustal growth and thickening stage. DC2 is synchronous with a period of crustal thickening
that affected most of the Gondwanan periphery, from the most external sections (Cadomian fore-arc) to the
inner ones (Cadomian back-arc). We explain DC2 as a consequence of flat subduction, which was followed by
a period dominated by crustal extension (DC3) upon roll-back of the lower plate. The Ediacaran construction
of the Cadomian Orogen (DC1 and DC2) requires ongoing subduction beneath Gondwana s.l., whereas its
dismantlement during the Early Paleozoic is compatible with oblique, sinistral convergence.Projects PID2020-112489GB-C21 and
PID2020-112489GB-C22, funded by
MCIN/AEI/10.13039/50110001103
Improving Authentication in the Amazon Alexa Virtual Assistant by Using a Geofence
Cursos e Congresos , C-155[Abstract] Amazon Alexa processes voice commands as input to help users perform tasks. For
protecting this commands, Amazon Alexa implements some security measures. These security
measures, such as voice recognition and user’s PIN, do not have the ability to mitigate replay
attacks. In order to mitigate replay attacks, in this paper, we propose an authentication method
based on Geofencing, consisting of (1) an Android application and (2) an Alexa Skill. By using
the Android application, the user is able to configure a geofence near the Amazon Echo smart
speaker. The developed Alexa Skill only accepts requests when the user is within the established
geofence. This method mitigates replay attacks: an attacker could only try to use a replay attack
when the legitimate user is close to the speaker, making it unfeasibleThis work was supported by the grant ED431C 2022/46 – Competitive Reference Groups GRC – funded by: EU and ”Xunta de Galicia” (Spain). This work was also supported by CITIC, funded by ”Xunta de Galicia” through the collaboration agreement between the ”Consellería de Cultura, Educaci´on, Formaci´on Profesional e Universidades” and the Galician universities
to strengthen the research centres of the ”Sistema Universitario de Galicia” (CIGUS). Also, the work is founded by the ”Formaci´on de Profesorado Universitario” (FPU) grant from the Spanish Ministry of Universities to Marti ˜no Rivera Dourado (Grant FPU21/04519)This work was supported by the grant ED431C 2022/46 – Competitive Reference Groups GRC – funded by: EU and ”Xunta de Galicia” (Spain). This work was also supported by CITIC, funded by ”Xunta de Galicia” through the collaboration agreement between the ”Consellería de Cultura, Educaci´on, Formaci´on Profesional e Universidades” and the Galician universities to strengthen the research centres of the ”Sistema Universitario de Galicia” (CIGUS). Also, the work is founded by the ”Formación de Profesorado Universitario” (FPU) grant from the Spanish Ministry of Universities to Marti ˜no Rivera Dourado (Grant FPU21/04519)
Programa de gestión de calidad en un servicio de Medicina Interna-Endocrinología
Trabajo de investigación en el que se presenta un minucioso análisis del estado de la investigación en sistemas de gestión de calidad en unidades de atención a pacientes con patología de diabetes. Asimismo se incluyen instrumentos de evaluación de la satisfacción de los pacientes con la intervención de los distintos agentes implicados. La calidad del análisis y de los materiales utilizados hacen que este trabajo sea una guía para estudiantes de la titulación de enfermerí
Pt atoms adsorbed on TiO2(110)-(1 × 1) studied with noncontact atomic force microscopy and first-principles simulations
We have studied the local properties of single Pt atoms adsorbed on hydroxylated TiO2(110)-(1 × 1) by combining noncontact atomic force microscopy (nc-AFM) and first-principles calculations. Room-temperature high-resolution nc-AFM images for the most frequently observed contrast modes reveal bright and elongated protrusions that can be traced back to the Pt atoms, and that are centered on the fivefold coordinated titanium rows, confined between two bridging oxygen rows. These observations are in line with the theoretical results, as the lowest energy sites for the Pt atom on the TiO2(110) surface are in the neighborhood of the titanium rows, and high energy barriers have to be overcome to displace the Pt atom over the bridging oxygen rows. Single Pt atoms can be distinguished from H adsorbates (OH defects) due to their characteristic shape and binding site and, because they appear as the brightest surface features in all of the contrast modes. Force spectroscopy data over the protrusion and hole imaging modes and the corresponding tip-sample forces, simulated with O and OH terminated TiO2 nanoclusters, provide an explanation for this puzzling result in terms of the intrinsic strength of the interaction with the Pt adatom and the adatom and tip apex relaxations induced by the tip-sample interaction. These imaging mechanisms can be extended to other electropositive metal dopants and support the use of nc-AFM not only to characterize their adsorption structure but also to directly probe their chemical reactivityThis work was supported by Grants-in-Aid for Scientific Research (No. 22221006, No. 25106002, No. 24360016, No. 26600099, No. 2600015, No. 26110516, and No. 20760024) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan, Funding Program for Next Generation World-Leading Researchers and by the Ministerio de Economia y Competitividad (MINECO, Spain) uder Projects No. MAT2011-23627, No. CSD2010-00024, and No. PLE2009-006
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