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UPCommons, el portal d'accés obert al coneixement de la UPC, està format pel conjunt de dipòsits institucionals oberts de la UPC i té com a missió garantir la preservació de la producció docent i de recerca cientificotècnica de la Universitat, maximitzant-ne la visibilitat i, conseqüentment, incrementant-ne l’impacte en la docència i la recerca de tot el món.
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Sistema d’obtenció i gestió remota en temps real de paràmetres mediambientals en un hivernacle

dt., 02/20/2018 - 23:19
Sistema d’obtenció i gestió remota en temps real de paràmetres mediambientals en un hivernacle Cubiro Raventos, Albert In recent years, there has been a significant increase in some technologies (IEEE 802.15.4, 6LoWPAN, CoAP, etc.) to implement wireless sensor networks (WSN). Where, small, compact and economic devices, called nodes- sensors, have the ability to measure, detect and supply data to other systems. These networks are formed by low cost and energy-saving nodes-sensors that communicate wirelessly. They are specially designed for communication with lossy links, and limited memory resources and processing capacity. This project is based on the collaboration between the Department of Telematics of EETAC and the Department of Agri-Food Engineering and Biotechnology of ESAB, at the UPC Campus in Baix Llobregat. The purpose is to deploy a system to collect and manage, in real-time, environmental parameters in an Agropolis greenhouse located in Viladecans (Barcelona). The parameters of interest are the measurement of temperature and humidity at different soil depths, and the measurement of the ambient temperature in three different points of the greenhouse. To implement this scenario, the interfaces were first designed to connect the different sensors provided (Decagon 5TE and 5TM, and RTD PT100) with the nodes-sensors, implemented by the Redwire Econotag platform. Then, an application has been created using the Contiki OS, based on the CoAP protocol (Constrained Application Protocol), to read and manage sensor data on each sensor node. Finally, a WSN based on the IEEE 802.15.4 standard has been created to recover the data from the different nodes-sensors and upload them to the Internet. The router in charge of giving IPv6 connectivity to the WSN nodes is formed by a Raspberry Pi B + (RPi) plus a module to provide IEEE 802.15.4 connectivity. The RPi performs periodic requests to the different nodes-sensors to obtain the measured parameters, store them in the local memory, and upload them to a spreadsheet on the Google Drive platform.
Categories: Novetats

Automation Software Develoment

dt., 02/20/2018 - 23:13
Automation Software Develoment Tosso Tacon, Ivan Currently many companies in the technology sector are dedicated to the development of software to meet internal or third-party needs. Software development is increasingly widespread in more spheres of society, runs on a greater diversity of devices and is applied every time More domains. The software developed requires the application of Software Quality Assurance (QA) activities, in order to check quality criteria. One of QA's core activities is software testing. The testing is based on the application of test cases that must be designed with criteria based on the requirements. There are several ways to specify requirements and in agile methodologies. An essential artifact are user stories, which can be specified using languages such as Gherkin and automated with tools such as Cucumber. In testing there are different levels of test, from unit cases to End-to-End functional acceptance tests. The purpose of this project is add in a Sogeti business tool, called kCycle, which generates end-to-end tests from user stories and flow models, a functionality that facilitates the automated generation of these tests in format Gherkin, in a Maven project compatible with the Eclipse development environment and allowing use Cucumber to assist the automation of testing.
Categories: Novetats

Estudio prospectivo del IoMT

dt., 02/20/2018 - 23:03
Estudio prospectivo del IoMT Consuegra Cabrerizo, Oriol The arrival of the Internet of Things (IoT) and its numerous applications is revolutionizing all the sectors in which it is being integrated. This project focuses on the application of the Internet of Things in the field of medicine, the so-called Internet of Medical Things (IoMT), starting by analyzing its evolution from the first telemetry systems to the current telemedicine. This project also studies some wearable devices applied to medicine that have already been implanted in our society. Besides, it examines its architecture and its applications. In addition to this, emerging technologies such as radio frequency identification (RFID) or the use of Big Data in the analysis of data in medicine are also analyzed. We will see how they are used, what types there are and some of their different applications. In order to apply all these technological systems correctly in the medical field, certain global and regional standards and protocols must be followed, which are also examined in this paper. Due to the massive increase of collected data and devices connected to the networks, this project studies the possible threats faced by patients, the security measures applied nowadays and the different security and privacy certifications in the medical field established both in the European Union and the United States. Finally, the main challenges that the IoMT will face in the future are listed and evaluated. As a conclusion, the difficulties that the IoMT technologies will have in order to be truly integrated in hospitals and in our healthcare system are analyzed, as well as why their use is not yet fully implemented.
Categories: Novetats

Diseño de un circuito discriminador de frecuencia de microondas en banda Ka

dt., 02/20/2018 - 22:58
Diseño de un circuito discriminador de frecuencia de microondas en banda Ka Lopez Corcuera, Christian Stevens This final grade project describes the concept, criteria and design of a 2-port microwave discriminator, which is the fundamental element in a frequency measurement system. The microwave discriminator performs the function of detecting unknown frequencies in the Ka band (30-40 GHz). The discriminator consists of five lines: the first line is a 180 ° phase shifter that acts as a reference and allows the generation of microwave discriminators reconfigurable of reduced size and weight. The following delay lines of length "λ", "3λ/ 2", "2λ" and "5λ/2" are the main elements for the construction all these lines are connected to the power divider at the input and power combiner at the output and finally a system of SPQT switching. Coplanar technology is used for its design. The power divider used is designed with coplanar technology. It is a Wilkinson splitter that also acts as a power combiner connected to the reference line and to the delay line. The input and output ports of the discriminator will be the input port of the splitter and the output port of the combiner respectively. The simulations of each delay line and the final design of the discriminator were performed with ADS / Momentum obtaining satisfactory results. This has enabled the resulting design to be integrated with the other components of the discriminator to subsequently obtain the signal identification bits.
Categories: Novetats

Cuadro de mando integral aplicado a la gestión pública en municipios

dt., 02/20/2018 - 22:55
Cuadro de mando integral aplicado a la gestión pública en municipios Leyton, Carolina; Gil Martín, Joan Carles Transparenting, improving and strengthening city management demands of updated tools to aid key aspects of decision making process in a city’s administration. This study presents a Balanced Scorecard (BSC) for Chilean cities government. Cause-effect analysis was applied to draw up a Strategic Map to identify Kaplan and Norton’s BSC management indicators, which were adapted to Barros and Rodriguez’s perspectives on public sector management. It is possible to outstand that the BSC allows to improve strategy structure to achieve both a city’s mission and vision. Chilean municipalities will be able to improve transparency and management with the BSC designed under the new perspectives of the public sector.
Categories: Novetats

Análisis, uso y desarrollo experimental de herramientas y tecnologías Open Source en Big Data

dt., 02/20/2018 - 22:52
Análisis, uso y desarrollo experimental de herramientas y tecnologías Open Source en Big Data Fannes Claverol, Jean Paul; Pallejà Mairena, Marc In this project, we pretend to analise, use and justify the use of Big Data nowadays in different areas like companies, research laboratories, etc., as well as different tools and Open Source technologies behind it that make it possible. The methodology used for this project has consisted on doing an exhaustive analysis of the current and future situation of Big Data, the introduction of the tools and Open Source technologies available, the study and comparative of each of them and the final experimental development with our own data. We highlight the use of Big Data, along with the associated technologies and tools such as Hadoop and Spark, as a great alternative to classic way of storing and processing big amounts of data. Given that it is a new concept for us, we are going to try to exploit as much as possible the Open Source functionalities related to Big Data and we are going to give our own personal recommendation on each one evaluating their main characteristics. Finally, we are going to dig further on the concept of Machine Learning on which a lot of companies are focusing their development. In order to do this, we are going to do an experimental project aiming to detect people's position based on the access points whose devices are connected to. The main objective is to study different algorithms to obtain the best possible accuracy of personal position and to compare the different results throw the analysis and processing of obtained data such as Building, Floor, etc.
Categories: Novetats

Depth-aware convolutional neural networks for accurate 3D pose estimation in RGB-D images

dt., 02/20/2018 - 22:48
Depth-aware convolutional neural networks for accurate 3D pose estimation in RGB-D images Porzi, Lorenzo; Peñate Sánchez, Adrián; Ricci, Elisa; Moreno-Noguer, Francesc Most recent approaches to 3D pose estimation from RGB-D images address the problem in a two-stage pipeline. First, they learn a classifier –typically a random forest– to predict the position of each input pixel on the object surface. These estimates are then used to define an energy function that is minimized w.r.t. the object pose. In this paper, we focus on the first stage of the problem and propose a novel classifier based on a depth-aware Convolutional Neural Network. This classifier is able to learn a scale-adaptive regression model that yields very accurate pixel-level predictions, allowing to finally estimate the pose using a simple RANSAC-based scheme, with no need to optimize complex ad hoc energy functions. Our experiments on publicly available datasets show that our approach achieves remarkable improvements over state-of-the-art methods. © 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Categories: Novetats

Análisis del sistema de comunicaciones BLE

dt., 02/20/2018 - 22:46
Análisis del sistema de comunicaciones BLE Alcalá Colmenero, Jorge This thesis aims to analyse a complete Bluetooth Low Energy (BLE) communications system. A theoretical study and different experiments have been carried out in order to evaluate if Bluetooth technology can be efficiently deployed in sports events (e.g. marathon, cycle races, etc). To do so, high durability chips are used, providing a higher reliability in terms of time and obtained results. The main features that have been considered to develop the proposed configuration have been: the range and the consumption of the devices by using different configurations, the way in which the movement affects the communication between nodes and the time needed to discover a huge amount of Bluetooth devices. The structure of this paper is composed by an introduction, where an overview of Bluetooth technology is presented, focusing on BLE's performance and its protocol. A study is made throughout the different versions of this specification in order to figure out the updates introduced in each release. Furthermore, the two most important stages for the communication (Scanning / Advertising) are described. They allow to establish a communication between several devices. Regarding the experimental part different tests have been conducted, aiming to characterise the used devices and define its behaviour. For that purpose transmitters and receivers are analysed by means of checking different parameters and how they can be modified trough HCI commands. The rest of tests determined if any of the potential configurations is suitable to cover the aim of this thesis, providing an effective Bluetooth scheme to properly detect devices in highly populated environments (in order of thousand devices).
Categories: Novetats

Diseño e implementación de una cámara trampa de bajo coste

dt., 02/20/2018 - 22:41
Diseño e implementación de una cámara trampa de bajo coste Vinent Pons, Aarón The objective of this project is the design and development of a low-cost on-ride camera, a type of camera trap (or trail camera), for its installation in some attraction. The function of this type of cameras is to take pictures automtically at a certain point of the attraction, usually at the time of most adrenaline. When the user leaves the attraction, he or she can view or buy the photograph at a kiosk. Its operation is simple; the attraction is equipped with a sensor that is linked and perfectly synchronized to a camera so that a picture is automatically triggered when motion is detected to later send it to the kiosk to be able to download it. In order to make this device, we will take advantage of the features, functionalities and low cost of the single-board computers such as Raspberry Pi, which will be installed the operating system Raspbian. It has a large number of libraries pre-installed for projects of motion detection and sensors. The programming language we will use for applications will be Python, which is an easy-to-learn, very popular and powerful language. We will use a native Python editor such as IDLE. During the project, three different motion detection systems have been implemented and evaluated. The first with a passive infrared sensor (HC-SR501), an ultrasonic sensor (HC-SR04) and finally a third one to be realized by software (image processing). For the capture of the photographs it has been decided to use the camera module that has Raspberry Pi for the capture of images. This module takes high quality images of 8 megapixels. Once tested the different solutions proposed, we will be choosing as transmit the photographs to an external server securely. As would be done in on-ride camera, when it transmits the images to the kiosk.
Categories: Novetats

3D human pose estimation from a single image via distance matrix regression

dt., 02/20/2018 - 22:40
3D human pose estimation from a single image via distance matrix regression Moreno-Noguer, Francesc This paper addresses the problem of 3D human pose estimation from a single image. We follow a standard two-step pipeline by first detecting the 2D position of the N body joints, and then using these observations to infer 3D pose. For the first step, we use a recent CNN-based detector. For the second step, most existing approaches perform 2N-to-3N regression of the Cartesian joint coordinates. We show that more precise pose estimates can be obtained by representing both the 2D and 3D human poses using $Ntimes N$ distance matrices, and formulating the problem as a 2D-to-3D distance matrix regression. For learning such a regressor we leverage on simple Neural Network architectures, which by construction, enforce positivity and symmetry of the predicted matrices. The approach has also the advantage to naturally handle missing observations and allowing to hypothesize the position of non-observed joints. Quantitative results on Humaneva and Human3.6M datasets demonstrate consistent performance gains over state-of-the-art. Qualitative evaluation on the images in-the-wild of the LSP dataset, using the regressor learned on Human3.6M, reveals very promising generalization results. © 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Categories: Novetats

Efecto de les variaciones de demanda horaria en el diseño y control de la regularidad de redes de transporte público en superficie para la implantación de vehículos eléctricos

ds., 02/17/2018 - 13:29
Efecto de les variaciones de demanda horaria en el diseño y control de la regularidad de redes de transporte público en superficie para la implantación de vehículos eléctricos González Barroso, Juan Carlos All collective public transport systems are based on economies of scale and want to provide universal accessibility to the mobility. To assert that a network is efficient it must adapt to the spatial characteristics of the territory it serves, but the most important factors for determining demand are generated by the level of service and the regularity of the network. In Barcelona, since 2012 operates a bus network of high-performance called Orthogonal Network in order to solve these problems. Pollution is another important problem in recent years, within the framework of the project ZeEUS the objective is to implement a fleet of electric vehicles, taking into account their logistical difficulties, to tackle this fact. This work analyzes the advantages and disadvantages that the introduction of fully electric vehicles in the new network would bring. These buses can not service the whole day without depleting the battery, they must carry out a charging process at the end of each journey. Knowing the real data of the routes H6 and H16provided by TMB, the arrival intervals to the ending stops of each route direction during the day will be represented. The time that the buses need to carry out the load will be also analyzed. After this, the percentage of vehicles that will not be able to recover the consumed energy will be calculated. In a short time, the orthogonal network has become one of the most used systems of the metropolitan area due to the fast growth of the demand that has experienced. The gradual implementation has allowed to see how the demand has increased disproportionally to the increase of routes that were added in each new phase. This large increase is due to the transfers, with each new phase the number of transfers increases exponentially because each new line intersects with all perpendiculars constructed previously. In this way, are generated many new origin-destination pairs that are reached with only one transfer. The socio-economic factors have a great influence in the demand generated in all systems of transport. In this study, a model to predict the demand generated due to GDP, the price of the ticket and the population factors will be proposed. The results provided by the model are compared with the real ridership in order to distinguish which proportion is generated by economic and social situation and which is due to de design of the new network.; Todos los sistemas de transporte público colectivo se basan en economías de escala y pretenden dar una accesibilidad universal a las movilidad. Para que una red sea eficiente debe adaptarse a las características espaciales del territorio al que sirve, pero los factores más importantes para determinar la demanda vienen generado por el nivel de servicio y la regularidad de la red. En el caso de Barcelona, desde 2012 opera una red de bus de altas prestaciones que pretende dar solución a estos problemas denominada Red Ortogonal. En el marco del proyecto ZeEUS se busca implantar una flota de vehículos eléctricos con las dificultades logísticas que conlleva las para dar solución a otro problema importante en los últimos años, la contaminación. Este trabajo pretende estudiar los problemas y ventajas que aportaría la introducción de vehículos totalmente eléctricos en la nueva red. Los buses no pueden dar servicio durante toda la jornada sin agotar la batería y por ello deberán efectuar la carga durante el día en las cabeceras al final de cada trayecto. A partir de datos reales cedidos por TMB de las líneas H6 y H16 se estudiaran los intervalos de llegada a las cabeceras de las líneas así como el tiempo necesario de carga y se realizará un estudio estadístico para ver qué porcentaje de buses no podrían efectuar la carga con las prestaciones actuales. El crecimiento de la demanda en la red ortogonal ha sido un fenómeno que ha hecho que se convierta en poco tiempo en uno de los sistemas más utilizados del área metropolitana. Su implantación gradual ha permitido ver como con cada nueva fase la demanda daba un salto cuantitativo mayor al correspondiente por el simple aumento de corredores en la red. Este gran incremento de demanda se debe a las transferencias. Con cada nueva fase el numero de transferencias aumenta exponencialmente debido a que cada nueva línea se cruza con todas las perpendiculares construidas anteriormente, de esta manera de generan muchos nuevos pares origen-destino que se alcanzan con solo una transferencia. En todos los sistemas de transporte público diferentes factores socioeconómicos tienen influencia en la demanda que se genera. En este trabajo se propondrá un modelo que pretende predecir la demanda generada por factores como el PIB, el precio de billete y la población. Los resultados del modelo se compararan con la demanda real a fin de distinguir proporción en la red ortogonal viene condicionada por la situación económica y social de la ciudad y cual viene generada por el buen diseño del sistema.
Categories: Novetats

Design of an inflatable, modular and portable footbridge

ds., 02/17/2018 - 13:22
Design of an inflatable, modular and portable footbridge Rodríguez Jiménez, Alberto Optimization of the use of resources and adaptability of the structures to their environment are new concerns in architecture and structural engineering. At the same time, ephemeral structures are gaining relevance in the market for their uses in maintenance and repair, organization of events, rescue and emergencies and temporary works. Inflatable structures satisfy two of the points aforementioned: they require small amounts of materials and are adequate for ephemeral structures, due to their low deflated volume and lightness. They are also adaptable in the sense that their overpressure determines their load carrying capacity. However, they are inadequate for environments where high external loads may be present. Tensairity appears as a solution to this problem, increasing the carrying capacity of in- flatable structures without renouncing to their advantages. This technology adds two extra structural elements to inflatable beams, with greater strengths, in order to redistribute stresses along it. The inflatable element serves then to couple the two stiff elements and to avoid buckling. This work presents and explores design possibilities of Tensairity beams with special focus on their computational modelling. Then, research is carried out regarding modular Tensairity beams, thought as a solution for deployable footbridges. A prototype was built and tested in serviceability conditions to prove the fitness of the proposal to a commercial level.; La optimización de los recursos y la adaptabilidad de las estructuras a su ambiente son nuevas tendencias en la arquitectura y la ingeniería estructural. Al mismo tiempo, las estructuras efímeras están ganando relevancia en el mercado por sus usos en tareas de mantenimiento y reparación, organización de eventos, operaciones de salvamento y emergencia y obras temporales. Las estructuras hinchables satisfacen dos de los puntos arriba mencionados: usan poco material y son adecuadas para usos efímeros debido a su bajo volumen al desinflarse y su ligereza. También son adaptables en cuanto que su presión determina su capacidad de carga máxima. Sin embargo, son poco aptas para ambientes donde se esperan cargas externas elevadas. Tensairity aparece como una solución a este problema, incrementando la resistencia de carga máxima de las estructuras inflables sin renunciar a sus otras ventajas. Esta tecnología añade dos elementos estructurales a la viga hinchable, con mayor resistencia frente a esfuerzos, para redistribuir la carga. El elemento inflable sirve entonces para acoplar los elementos rígidos y para evitar el pandeo. Este trabajo presenta y explora posibilidades de diseño de vigas Tensairity con atención especial a su modelado computacional. Después, se investiga sobre vigas Tensairity modulares como solución de pasarelas portátiles. Se ha construido un prototipo para probarlo bajo condiciones de servicio y valorar así su validez a nivel comercial.
Categories: Novetats

Estudio computacional de las propiedades visco-hiperelásticas del tejido cerebral

ds., 02/17/2018 - 12:06
Estudio computacional de las propiedades visco-hiperelásticas del tejido cerebral Pérez Berral, Carlos Las propiedades mecánicas del tejido cerebral son motivo de estudio desde hace más de medio siglo. La mecánica del cerebro tiene un papel importante en las condiciones patológicas como las lesiones cerebrales, la neurocirugía y el neurodesarrollo. Sin embargo, la complejidad y heterogeneidad del cerebro son un desafío para la caracterización de las respuestas mecánicas del mismo. Las simulaciones computacionales son una poderosa herramienta para la predicción del comportamiento del tejido cerebral, no obstante, éstas dependen de la fiabilidad y alcance de modelos matemáticos constitutivos. Este trabajo pretende caracterizar las propiedades visco-hiperelásticas de una muestra de materia blanca de tejido cerebral,a partir del procesamiento de datos experimentales obtenidos en n=14 nanoindentaciones. La nanoindentación permite el ensayo de pequeñas zonas de tejido, y posibilita caracterizar las diferencias mecánicas de una misma muestra. Para la obtención de los parámetros visco-hiperelásticos se han usado simulaciones con modelos de elementos finitos. Los datos de los ensayos se han dividido en dos partes: una parte de carga lineal para la obtención de parámetros hiperelásticos mediante el modelo constitutivo de Mooney-Rivlin; y una parte de carga oscilatoria para la obtención de parámetros viscoelásticos mediante el modelo de convolución de la serie de Prony. Una metodología de problema inverso ha sido realizada para la obtención de dichos parámetros. Los resultados obtenidos más destacados son la rigidez inicial media µ0 = 2197 ± 697 Pa y la rigidez estacionaria media µ∞ = 230 ± 98 de las n=14 nanoindentaciones. Este estudio es capaz de caracterizar de manera sencilla y correcta el comportamiento visco-hiperelástico de una muestra de tejido, aunque defiende que todavía es necesario mucho desarrollo e investigación para la calibración, mejora y validación de los modelos constitutivos.
Categories: Novetats

Estudi d'ampliació transversal de ponts de bigues

ds., 02/17/2018 - 11:54
Estudi d'ampliació transversal de ponts de bigues Pallàs Vadillo, Ramon Els ponts han constituït, des de la seva concepció, un element indispensable a l’hora de cobrir les necessitats de l’home en quant a l’extensió de les connexions entre civilitzacions. L’evolució d’aquests ha anat de la mà del progrés científic, fins al punt d’arribar avui dia a conceptes estructurals, mètodes constructius i materials avançats que mai haguessin pogut imaginar els nostres avantpassats. La modificació d’aquests al llarg del temps ha estat condicionada pels constants canvis socials que ha patit la societat, així com el desgast que provoca el pas del temps en ells. Canviar els pas de cavalls sobre ells per automòbils, deixar de construir amb pedra per deixar pas al formigó, que les condicions atmosfèriques corroeixin l’armat de les bigues, etc. són accions que modifiquen de manera significativa l’estat dels ponts. Tot això comporta modificar els ponts existents per donar resposta a moltes necessitats: reparar danys, augmentar capacitat estructural, ampliar capacitat de via, etc. És aquesta última la necessitat que planteja aquesta tesina i el que pretenem és donar-li resposta en un tipus de pont concret: els ponts de carreteres de bigues doble T i d’un sol tram. Per resumir, volem respondre la següent pregunta: “Es pot aprofitar un pont existent, el qual ha sigut dimensionat en una època, amb condicions i normatives de dimensionament concretes, ampliant transversalment el seu tauler per donar una major capacitat de via?”. Conseqüentment, donarem resposta a la incertesa de si per ampliar el pont en concret fa falta reforçar la part existent del mateix. Per fer-ho, predimensionarem 9 casos concrets de ponts de bigues que presenten diverses geometries basant-nos en configuracions existents de ponts, compararem les accions de les normatives aplicables en els ponts executats anys enrere (IAP-72) i l’actual (IAP-11), modelitzarem els casos descrits amb el software SAP2000 i, finalment, analitzarem els esforços que es produeixen en tots aquests per poder comparar i trobar conclusions de pes. L’objectiu final serà, doncs, donar una idea prou robusta de què és el que cal tenir en compte a l’hora d’ampliar transversalment un pont de bigues, ja siguin paràmetres geomètrics com esforços que es generin sobre aquests. D’aquesta manera, actuarem com enginyers que avancin en coneixement i redueixin les incerteses.; The bridges have constituted, from their conception, an indispensable element when it comes to meeting the needs of humanity as regards the extension of the connections between civilizations. The evolution of these has gone hand in hand with scientific progress, to the point of reaching today structural concepts, constructive methods and advanced materials that our ancestors could never have imagined. The modification of these over time has been conditioned by the constant social changes that society has suffered, as well as the wear and tear caused by the passage of time in them. Change the horses' step on them by cars, stop building with stone to make way for concrete, atmospheric conditions corrode the reinforcement of the beams, etc. They are actions that significantly modify the state of the bridges. All this involves modifying existing bridges to respond to many needs: repair damage, increase structural capacity, expand track capacity, etc. It is this last one the necessity that raises this thesis and what we intend is to give answer in a type of concrete bridge: the bridges of roads of double beams T and of a single vain. To summarize, we would like to answer the following question: "Can an existing bridge be used, which has been dimensioned at a time, with specific dimensioning conditions and regulations, extending its board transversally to give greater capacity to travel?”. Consequently, we will respond to the uncertainty of whether to extend the bridge in concrete, it is necessary to reinforce the existing part of it. To do this, we will predict 9 concrete cases of beam bridges that present different geometries based on existing configurations of bridges, compare the actions of the applicable regulations in the bridges executed years ago (IAP-72) and the current (IAP -11), we will model the cases described with the SAP2000 software and, finally, we will analyse the efforts that are produced in all these to be able to compare and find weight conclusions. The final objective will be, then, to give a robust enough idea of what must be taken into account when transversely extending a beam bridge, whether geometrical parameters or efforts that are generated over them. In this way, we will act as engineers who advance knowledge and reduce uncertainties.
Categories: Novetats

Estudi del procés constructiu de ponts atirantats construïts sobre suports provisionals

ds., 02/17/2018 - 11:50
Estudi del procés constructiu de ponts atirantats construïts sobre suports provisionals Fraile Diana, Joan The dissertation project presented below, proposes the development of a MATLAB algorithm for the study of the three-dimension structural analysis using the stiffness method. From the practical view, the engineer is in search of simplicity when talking about the calculating process and agility when working out the results, reasons why MATLAB is one of the most and widely used program for solving engineering problems. During the first chapters some other structural analysis software will be named used in order to cope with the three-dimension adaptation of the MATLAB code but it will not take much importance because they do not verify some of the aspects named before. First of all, the hypothesis of the stiffness method is going to be introduced for both cases (two-dimension and three-dimension) and after that, the adaptation is going to be done presenting the most important codes. Chapter 6 is important because of the creation of a code that calculates itself, the resulting forces at the nodes of the bars from the uniform distributed loads. This code is capable of storing the results in a text document for a later usage of those values. This dissertation project will end with all the code presented at the end as an annex and with the validation of it doing some proposed examples. Those examples are going to be tested with the structural software called Midas Civil and checked at the same time with the three-dimension MATLAB algorithm.; El Treball Final de Grau presentat a continuació proposa el desenvolupament d’un algoritme MATLAB per a l’estudi del càlcul estructural espacial mitjançant el Mètode de la Rigidesa. Des de la visió pràctica, l’enginyer busca simplicitat en els càlculs, rapidesa en l’obtenció de resultats i un mínim error, raons per les quals el software MATLAB és una referència a dia d’avui en la resolució de problemes relacionats amb l’enginyeria. En els primers capítols es proposarà algun altre software de càlcul estructural utilitzat per tal de dur a terme aquesta adaptació tridimensional amb MATLAB però no cobrarà especial rellevància degut a que no verifica alguns dels aspectes introduïts en el paràgraf anterior. D’aquesta forma, primerament s’introduiran les bases del Mètode de la Rigidesa per ambdós casos (bidimensional i tridimensional) i tot seguit es procedirà a l’adaptació espacial presentant els codis creats de més importància. Un capítol d’especial interès serà el número 6. Aquest capítol mereix especial menció pel fet de la creació d’un codi propi per al càlcul d’esforços d’encastament perfecte, ja que com es presentarà seguidament, el Mètode de la Rigidesa no permet treballar amb esforços en barres i és necessari transformarlos a càrregues nodals. Es conclourà aquest document amb tot el codi annexat i duent a terme una validació del mateix mitjançant exemples proposats realitzats amb el programari de càlcul estructural Midas Civil i comprovats posteriorment amb el codi MATLAB espacial creat.; El Trabajo de Fin de Grado presentado a continuación, propone el desarrollo de un algoritmo MATLAB para el estudio del cálculo estructural espacial mediante el método de la Rigidez. Des de la visión práctica, el ingeniero busca simplicidad en cálculos, rapidez obteniendo resultados y el mínimo error, razones por las cuales el software MATLAB es una referencia a día de hoy en la resolución de problemas relacionados con la ingeniería. En los primeros capítulos se va a proponer algún que otro software de cálculo estructural usado para llevar a cabo la adaptación tridimensional con MATLAB, per no va a cobrar especial relevancia dado que no verifica alguno de los aspectos introducidos en el párrafo anterior. Primeramente se introducirán las bases e hipótesis del método de la rigidez para ambos casos (bidimensional y tridimensional) y seguidamente se procederá a la adaptación espacial presentando los códigos de mayor importancia. Un capítulo de especial interés será el número 6. Este capítulo merece especial mención por el hecho de la creación de un código propio pera el cálculo de esfuerzos de empotramiento perfecto ya que como se va a presentar en los próximos capítulos, el método de la rigidez no permite trabajar con esfuerzos en barras y es necesario transformarlos a cargas nodales. Finalmente se va a concluir el documento con todo el código anexado y llevando a cabo una validación del mismo mediante ejemplos propuestos realizados con el programa de cálculo estructural Midas Civil y comprobados posteriormente con el código MATLAB espacial creado.
Categories: Novetats

Detection of malware traffic with NetFlow

ds., 02/17/2018 - 11:41
Detection of malware traffic with NetFlow Codina Poquet, Joël Traffic classification has always been a fundamental aspect regarding the identification of applications on the network that has allowed to apply different actions or services depending on their type, such as best-effort delivery or discarding the traffic in case of a malicious application. The cons
Categories: Novetats

Park & Ride a Castelllbisbal

ds., 02/17/2018 - 11:35
Park & Ride a Castelllbisbal Vila Serrano, Francisco de Borja Proyecto constructivo de uno de los elementos fundamentales de la movilidad del futuro inminente que promueve el uso del transporte público y reduce el número de vehículos privados y las emisiones en las grandes ciudades
Categories: Novetats

Foreword

dv., 02/16/2018 - 18:26
Foreword Monteys Roig, Xavier
Categories: Novetats

Comparison of different Internet of Things platforms

dv., 02/16/2018 - 17:29
Comparison of different Internet of Things platforms Toran Mercadé, Daniel Aquest projecte s’emmarca en el concepte de la IoT (la Internet de les coses) i té com a objectiu dur a terme el desplegament d’una arquitectura IoT utilitzant un dispositiu amb connectivitat Sigfox i diferents plataformes IoT com AWS IBM Watson IoT, Microsoft Azure i thethings.iO. El dispositiu Sigfox està transmetent mesures de temperatura i aquestes s’envien a les plataformes IoT, que han estat configurades per rebre i emmagatzemar les dades. Un cop les dades s’han emmagatzemat a les plataformes, l’objectiu principal és poder analitzar-les i treure’n informació valuosa. Per tant, s’han dut a terme visualitzacions gràfiques. Després de desplegar les diferents arquitectures IoT, les plataformes han estat testejades per verificar les diferències entre elles pel que fa al processament de dades i a la visualització. S’han comparat considerant característiques com facilitat de connectar els dispositius i analitzar les dades, preu, flexibilitat o serveis. Aquesta memòria explicarà com configurar aquestes plataformes per poder rebre i analitzar les dades, utilitzant l’exemple del sensor de temperatura, i quina d’elles és més adequada per resoldre una necessitat concreta d’algun camp del coneixement.
Categories: Novetats

Locuinte pentru varstnici: calle de Bolivia 45-47-49, Barcelona, Spania, 2016: Bonell i Gil; Peris + Toral arquitectes

dv., 02/16/2018 - 16:14
Locuinte pentru varstnici: calle de Bolivia 45-47-49, Barcelona, Spania, 2016: Bonell i Gil; Peris + Toral arquitectes Bonell Costa, Esteve; Gil Guitart, Josep Maria; Peris Eugenio, Marta; Toral Fernández, José Manuel The project organises 105 senior citizens housing into three volumes spread out, on top of a two-story plinth containing a Health Centre and a Senior Community Centre. The dwelling’s perceivable boundaries are expanded by the program organization. The mixed-use of the program enable to preserve the existing social network of the neighbourhood. The project is located near Glories’ square. This plot is within the Eixample’s urban fabric. At the same time, is part of a city block trimmed by Diagonal’s Street trace. One of the main challenges the project had to face was the mixed-use program with different real estate developments: 105 housing for Barcelona’s council, a Health Centre for regional government, a Senior Community Centre for the district and a vehicle impoundment parking for BSM. We opted for a unitary building in order to organise and to encourage different uses but also to accommodate the whole program: a group of three volumes of housing on top of one double-height plinth containing the facilities. By overlapping two different urban strategies, the project is capable of giving response to the surroundings’ complexity. On one hand, the continuous base of the building recognises the grid of the Eixample, by leaning on its alignments. On the other, the housing volumes give continuity to the sequence of nearby isolated blocks in respond to Diagonal Street. The void between these blocks is necessary to filter the public space through them and to remain as a global unit. The result is an architectural ensemble that despite its domestic height is able to dialogue with the unique geometry of the high and sharped nearby buildings, joining into a greater scale urban piece of strong identity. Depending on the block, each building has seven or eight dwellings by floor with a central corridor. This walkway enlarges at both ends where it receives daylight. At the top floor of each building there are a communal laundry, a covered porch with clothes lines and a patio-solarium with foreseen urban-garden. At the plinth’s roof level, each building has a multi-use room connected directly with the outside terrace enabling the social services managing the building to organise workshops or activities. Since these are dwellings for elderly, it must be considered that occupants usually spend long periods of time at home and in the building. Thus, communal spaces enhance and enrich the experience of living. This dwelling’s renting typology is organised around a central core of serving spaces, which is surrounded by the bedroom and the living room, both understood as a continuous and flexible space articulated by the terrace. This layout enables to perceive space as limitless, not enclosed but interconnected. The bathroom segregates into two: a more private area and an open space. Spaces connect or segregate through large sliding doors, like movable walls. If they are all open, space flows around the core. Depending on whether doors open or close, space is transformed so it can be differently used. The corner’s typology repeats the same scheme of serving spaces. The entrance threshold is enlarged to host the dinning room, linked by a window to the kitchen. The sights connect with the exterior through a large series of frames. The enfilade of doors and windows increase the porosity of space; and as a result, space seems larger than it is. Rooms are never enclosed, they always vanish into neighbouring spaces slightly introduced for the occupant to sense. Tangent views flow around the core, linking contiguous spaces. The dwellings’s structure consists on perimeter walls and pillars always located on the in-between apartments walls so that a free plant is guaranteed. It is at the ground floor level and by using cross-beams where the structure turns into an orthogonal grid of pillars of 7,5x7,5m for the parking located at the lower floors.
Categories: Novetats

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