525 research outputs found
Geometric documentation of the main refectory of the Monastery of Yuso (San Millán de la Cogolla, La Rioja, Spain)
[ES] Se trata de una estancia de 35 x 9 metros de planta que se organiza con un banco corrido en tres de sus lados con un respaldo a modo de friso y una serie de mesas de madera, cuenta además con varias ventanas y tres lámparas que aportan la iluminación, una puerta de acceso destacada en madera con cancel, púlpito para la lectura y varios cuadros.El volumétrico general alámbrico se ha realizado mediante topografía clásica con estación total. Para la documentación del friso de madera y los cuadros se ha recurrido a fotografía que posteriormente se ha rectificado. Como resultados se presenta el modelo 3D y una colección de planos.[EN] The refectory is a room of about 35x9 metres (plan) arranged with a continuous wooden bench in thee of the sides (all except the entrance) with a wooden frieze as the back of the bench, a series of tables, a pulpit, a detached door with chancel screen and some pictures.A general wireframe model in 3D was obtained by means of total station. The decoration of the back of the bench is drawing from rectified photographs and the same methodology was used to represent the pictures. As results, as well as the 3D model, a series of plans was generated.[ES] Memoria del proyecto (10 páginas en formato PDF) y 7 fotografías de documentación (formato JPEG)[EN] Report of the proyect (10 pages in Spanish in PDF format) and 7 photographs for documentation purposes (JPEG)
Learning and Teaching after 50 Years of THORAX Surgery
Surgeries are practiced in different areas, and specifically in the thorax described in this chapter, the medical doctors must know in detail the biological structures in which they perform such surgical procedures. Therefore, in this chapter, we refer to the descriptive and topographical anatomy written by French doctors L. Testut and A. Latarjet. In earlier times, for several reasons, the medical surgeon operated all body organs and was involved in resolving the pathology of different areas. Currently and in the future, medical knowledge in thoracic surgery will cover subspecialties specifically divided, for example: assisted video surgery, interventional bronchoscopy, and mediastinoscopies to take mediastinal biopsies using robotic surgery of pulmonary exeresis to shorten the hospitalization period and even the days spent in the intensive care unit
Análisis funcional para la Plataforma IoT PIICO
This paper presents the main challenges of an Internet of Things (IoT) platform. In this sense, an interoperability platform for IoT devices, called PIICO, is presented in the frame of an agriculture application. PIICO is a platform able to resolve interoperability between components and has the potential to be a stable IoT platform. Improvements opportunities of the main IoT PIICO components (nodes, gateway, and data analytics platform) are presented and discussed. The proposed improvements will make that an IoT platform improves its functionality, operation, security, and performance.Este documento presenta los principales desafíos de una plataforma de Internet de las cosas (IoT). En este sentido, se presenta una plataforma de interoperabilidad para dispositivos IoT, denominada PIICO, en el marco de una aplicación agrícola. PIICO es una plataforma capaz de resolver la interoperabilidad entre componentes y tiene el potencial de ser una plataforma de IoT estable. Se presentan y discuten las oportunidades de mejora de los principales componentes de IoT PIICO (nodos, puerta de enlace y plataforma de análisis de datos). Las mejoras propuestas harán que una plataforma IoT mejore su funcionalidad, operación, seguridad y rendimiento
Supporting works for the laser scanning of Santimamiñe Cave (Kortezubi, Bizkaia, Spain). Precision traverse and control points
[ES] Se trata de una cueva de gran belleza e interés geológico, se desarrolla sinuosamente a lo largo de algo más de 350 metros alternando grandes salas y estrechos corredores. Cuenta con un conjunto de pinturas rupestres catalogadas en el Paleolítico Superior y está incluida en la lista de Patrimonio de la Humanidad por la UNESCO en «Cueva de Altamira y arte rupestre paleolítico del Norte de España».Poligonal de precisión colgada que va desde la entrada de la cueva y se adentra en el interior unos 350 metros hasta el final de la zona practicable. A lo largo del recorrido se van colocando señales de referencia que sirvieron para la orientación de los barridos láser.[EN] The cave runs along more than 350 metres, it possesses a great variety of geological artefacts as well as a set of palaeolithic paintings. It is included as part of the UNESCO’s world heritage list inside the item “Cave of Altamira and Paleolithic Cave Art of Northern Spain”.Open traverse of around 350 meters inside the cave. During the itinerary, control points were places all along the cave in order to provide orientation to the laser scanning.Repair Systems, S.A.[ES] Memoria del proyecto (22 páginas) en formato PDF + 8 fotografías de documentación (formato JPEG)[EN] General report (22 pages in Spanish) format PDF + 6 photographs for documentation purposes (JPEG
Nuevas investigaciones sobre los yacimiento paleolíticos de la Sierra Norte de la Comunidad de Madrid
Durante los últimos años se han retomado las investigaciones en la Sierra Norte de la
Comunidad de Madrid. Dichas actuaciones partieron de una iniciativa de la Dirección
General de Patrimonio Histórico de la CAM que tuvo como primer objetivo evaluar el
potencial arqueológico pleistoceno de la orla caliza de la Sierra Norte a través de una
campaña de prospecciones. Aquel primer trabajo dejó clara la importancia de la zona E
de la orla, destacando el Cerro de la Dehesa de la Oliva (Patones) y el barranco del Arroyo
del Monte (El Vellón). La línea de trabajo emprendida, con posterioridad, se ha centrado
en el estudio específico de dos enclaves, dado el amplio potencial que presentaban: la
Cueva del Reguerillo y el Abrigo del Monte. Por un lado, en la Cueva de El Reguerillo se
ha realizado una estrategia de protección, documentación y evaluación de sus bienes a
través de diversos trabajos como la prospección de arte rupestre y los sondeos arqueológicos
en las diferentes entradas. Por otro, en el Abrigo del Monte se efectuó un sondeo
arqueológico que ha dejado clara la importancia de este yacimiento para el Paleolítico
Superior final del centro de la Península Ibérica
Dynamic rating management of overhead transmission lines operating under multiple weather conditions
Integration of a large number of renewable systems produces line congestions, resulting in a problem for distribution companies, since the lines are not capable of transporting all the energy that is generated. Both environmental and economic constraints do not allow the building new lines to manage the energy from renewable sources, so the efforts have to focus on the existing facilities. Dynamic Rating Management (DRM) of power lines is one of the best options to achieve an increase in the capacity of the lines. The practical application of DRM, based on standards IEEE (Std.738, 2012) and CIGRE TB601 (Technical Brochure 601, 2014) , allows to find several deficiencies related to errors in estimations. These errors encourage the design of a procedure to obtain high accuracy ampacity values. In the case of this paper, two methodologies have been tested to reduce estimation errors. Both methodologies use the variation of the weather inputs. It is demonstrated that a reduction of the conductor temperature calculation error has been achieved and, consequently, a reduction of ampacity error.This research was funded by the Spanish Government AND FEDER funds under the R+D initiative RETOS COLABORACIÓN 2015” with reference RETOS COLABORACIÓN RTC-2015-3795-3 and Spanish R+D initiative with reference ENE2013-42720-R
Thermal behaviour of medium-voltage underground cables under high-load operating conditions
The dynamic management of electric power distribution lines has become a topic of great interest at present. Knowledge of the ampacity of cables is fundamental to carrying out dynamic management. In this study, the ampacity of buried cables in different soil resistivities and depths was calculated. A small-scale model was built in the laboratory to simulate the operating conditions of a buried cable. With the experimental results, a numerical model based on the finite element method was validated to evaluate the ampacities calculated by two standards. A comparison was made between the ampacities calculated from the IEC 60287-1 and UNE 211435 standards and those obtained from the simulated model. In addition, a comparison was made regarding the steady-state temperatures obtained at each calculated ampacity. The results obtained from the simulated model design show that the ampacity calculation method of the IEC 60287-1 standard where drying-out of the soil occurs is the most accurate, and has the least risk of exceeding the maximum permissible cable temperature.This work was financed by the EU Regional Development Fund (FEDER) and the Spanish Government under ENE-2013-42720-R, RETOS-COLABORACION RTC-2015-3795-3 and SODERCAN/FEDER Proyectos Puente 2017 and by the University of Cantabria Industrial Doctorate 19.DI12.649. The authors also acknowledge support received from Viesgo
Outstanding performance of PIM-1 membranes towards the separation of fluorinated refrigerant gases
The recycling of depleted high global warming mixtures of fluorinated gases (F-gases) with close-boiling or azeotropic behavior requires advanced separation processes to obtain effectively the pure components. Herein, several types of PIM-1 membranes were tested for the first time towards the separation of hydrofluorocarbons and hydrofluoroolefins, showing extraordinarily high permeability coefficients for the value-added difluoromethane (R-32), up to 4100 barrer, coupled with high selectivity for the F-gas pairs of interest. Additionally, the solubility of selected F-gases in PIM-1 was measured and fitted to the dual-mode and Guggenheim, Anderson and de Boer sorption models. The separation performance of the standard PIM-1 and a highly branched PIM-1 was examined with the mixture R-410A (containing R-32 and pentafluoroethane R-125) to assess the influence of the membrane topology on the mixed-gas permeation properties over time (physical aging). Considering that the branched PIM-1 membrane was the least impacted by the aging phenomena, it was used to recover high purity R-32 (concentration in the permeate side as high as 98.9 vol % was achieved) from refrigerant gas mixtures R-410A and R-454B (mixture of R-32 and R-1234yf) in continuous long-term experiments. Results showed the great potential of PIM-1 membranes for the separation of R-32 from refrigerant mixtures collected from end-of-life equipment.This research is supported by project PID2019-105827RB-I00 funded by MCIN/AEI/10.13039/501100011033. F.P. and S.V.G.H. acknowledge the support of the Spanish State Research Agency and the Spanish Ministry of Science and Innovation (grants IJC2020-043134-I and PRE2020-093568, respectively). A.B.F and P.M.B acknowledge EPSRC Grant ep/v047078/1 (SynHiSel). P.G. is supported by Grant RYC2019-027060-I funded by MCIN/AEI/10.13039/501100011033 and by “ESF Investing in your future”
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