1,623 research outputs found

    La Cartografía Aeronáutica ante un nuevo cambio tecnológico

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    El Grupo de Investigación Mercator de la Universidad Politécnica de Madrid, junto con AENA, está poniendo en marcha diversos proyectos de investigación y desarrollo en el campo de las tecnologías de la Información Geográfica aplicadas a la aeronáutica. AeroVISUAL es una de sus líneas de trabajo la cual, basándose en las oportunidades tecnológicas citadas anteriormente, enfoca sus esfuerzos en la consecución de soluciones de visualización cartográfica que logren transmitir la información de situaciones y atributos en vuelo de forma funcional, atractiva y efectiva. Crear entornos apropiados para la presentación de cartas aeronáuticas en el puesto de pilotaje a través de dispositivos electrónicos implica evaluar nuevas metodologías de visualización de la información geográfica alejadas de la traslación directa del formato papel a electrónico, así como aplicar experiencias de disciplinas tales como la psicología cognitiva, la semiología, la interacción ordenador-persona, la ergonomía y la ingeniería de los factores humano

    Knowledge networks, innovation and its application on a small bussines

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    Treball Final de Grau en Administració d'Empreses. Codi: AE1049. Curs: 2014/2015The main theme for the work are knowledge networks and innovation, both concepts are linked as we will explain below, so the work will not be focus on one of the two main themes but will try to give context and connect to both with a little research which should serve as a guide to everyone who does not know anything about this two concepts, also this guide will be used to analyze a company and provide guidelines to implement new strategies based on innovations and knowledge networks, or make a more efficient use of them for the company if they are already have implemented this concepts in the organization. As election to present for our final assignment we decided to focus on the study of a small company that works in a sector which normally on case studies, analysis and research of companies that we have studied in the university in the past years do not usually have much presence, but innovation is closely linked to this sector because it is a creative product and therefore is tied directly to innovation, we refer to the comics industry. The work will be separated into three parts, on the first part we will focus on making a small research study on knowledge networks, what they are , what are they for, from where they emerge, the networks in Spain and as a the more point, what relationship do they have with innovation. In the second part we will focus on innovation, defining it, watching how they arises, the two opposing philosophies regarding business innovation , also we will observe what types of innovation there are in the companies, and a very important part in our guide with examples of how a company can help the employees to be more creative. As a final part of the study and looking backward into the analysis set above, we will analyze the company Manhattan Company , a small Valencian retailer of comics, which thanks to small innovations and being one of the first store to establish networks of knowledge with other Spanish companies has grow from a single store in the city of Valencia to set up three more branches throughout the country; to have all the necessary information of the company will have a small interview with the shop owner Noel Martinez. And we will discover how he applied these innovations and what weight these knowledge networks had in the success of the compan

    Estimating the extent of horizontal gene transfer in metagenomic sequences

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    <p>Abstract</p> <p>Background</p> <p>Although the extent of horizontal gene transfer (HGT) in complete genomes has been widely studied, its influence in the evolution of natural communities of prokaryotes remains unknown. The availability of metagenomic sequences allows us to address the study of global patterns of prokaryotic evolution in samples from natural communities. However, the methods that have been commonly used for the study of HGT are not suitable for metagenomic samples. Therefore it is important to develop new methods or to adapt existing ones to be used with metagenomic sequences.</p> <p>Results</p> <p>We have created two different methods that are suitable for the study of HGT in metagenomic samples. The methods are based on phylogenetic and DNA compositional approaches, and have allowed us to assess the extent of possible HGT events in metagenomes for the first time. The methods are shown to be compatible and quite precise, although they probably underestimate the number of possible events. Our results show that the phylogenetic method detects HGT in between 0.8% and 1.5% of the sequences, while DNA compositional methods identify putative HGT in between 2% and 8% of the sequences. These ranges are very similar to these found in complete genomes by related approaches. Both methods act with a different sensitivity since they probably target HGT events of different ages: the compositional method mostly identifies recent transfers, while the phylogenetic is more suitable for the detections of older events. Nevertheless, the study of the number of HGT events in metagenomic sequences from different communities shows a consistent trend for both methods: the lower amount is found for the sequences of the Sargasso Sea metagenome, while the higher quantity is found in the whale fall metagenome from the bottom of the ocean. The significance of these observations is discussed.</p> <p>Conclusion</p> <p>The computational approaches that are used to find possible HGT events in complete genomes can be adapted to work with metagenomic samples, where a level of high performance is shown in different metagenomic samples. The percentage of possible HGT events that were observed is close to that found for complete genomes, and different microbiomes show diverse ratios of putative HGT events. This is probably related with both environmental factors and the composition in the species of each particular community.</p

    Diseño de un Módulo Virtual Para el Aprendizaje de Ensamble y Configuración de Computadores en la Institución Educativa de Puerto Rico Meta

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    In the “Institucion Educativa Urbana” in Puerto Rico Meta, there are important technological tools that are often missed that are granted by government subsidies; but with the creation of this educational module a process of technological revolution began in town.Students will have the ability to perform any assembly and installation of computer equipment showing a new job opportunity and improving the educational level with the use of information technology and communication and their minds away from the stark injustice and violence which subjected grabbed this town and its students.Innovation in education makes more striking the appropriation of concepts, and encourages students to explore many beyond what they can receive in a classroom making the experience an enriching element in the process of formation students; The application features a flash animation of how the process of assembling a pc, additionally with a video tutorial on installing and configuring multiple operating systems, an extensive glossary of terminology applied to computers and technology.Keywords: education, technological tools, appropriation of concepts, software

    WPS: GeoCoder basado en CartoCiudad y en tecnología OpenSource

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    La geocodificación es el proceso de traducción de direcciones o intersecciones en coordenadas -localización directa- (ISO 19133:2005), lo que constituye un proceso clave para el tratamiento de información georreferenciada mediante identificadores y direcciones postales y es una necesidad básica para muchas personas y empresas en su actividad. La geocodificación se basa en la existencia de bases de datos que almacenan la información disponible sobre viales, portales y puntos kilométricos, así como las divisiones administrativas y postales. Sin embargo, la primera dificultad a la que se enfrentan los geocodificadores es la pluralidad de formas de escribir direcciones, seguida de las referencias ambiguas, abreviaturas y contextos locales. Existen numerosos servicios de geocodificación proporcionados por empresas tecnológicas: Google, Bing, Yahoo, otros basados en cartografía colaborativa (OpenStreetMap) y finalmente otros basados en la información oficial de los organismos cartográficos. En consecuencia, se plantea la necesidad de trabajar en la implementación y desarrollo de un geocodificador que alcance una alta tasa de aciertos. Este propósito se ha materializado con el uso de la biblioteca Libpostal como normalizador y parser de direcciones mundiales de calles, utilizando procesamiento de lenguajes naturales y datos de libre disposición, como OpenStreetMap. Debido a que Libpostal no es un geocodificador completo, éste se complementa con una serie de algoritmos escritos en PL/PgSQL para PostgreSQL, implementados específicamente para el modelo y la información de la base de datos CartoCiudad. Si bien el diseño modular de las funciones PL/PgSQL permite adaptar este trabajo a otras bases de datos, sin importar el país o el idioma en el que se basen. A partir de la base de datos CartoCiudad, publicada en el centro de descargas del Centro Nacional de Información Geográfica, se aborda la optimización de la velocidad de respuesta en las búsquedas. El algoritmo de geocodificación implementado proporciona tolerancia a errores tipográficos en los valores de entrada y está dotado de capacidad para resolver ambigüedades en ciertas búsquedas. Para ello, además de utilizar el normalizador Libpostal en la geocodificación, se emplea búsqueda difusa mediante un algoritmo fonético con una función heurística de calidad. En caso de no poder satisfacer una búsqueda exacta, se proporcionen alternativas, ordenadas decrecientemente por grado de coincidencia, junto a la georreferencia exacta tomada de la base de datos, o aproximada por un algoritmo de interpolación. Para potenciar la interoperabilidad, en un entorno de Infraestructura de Datos Espaciales, se ha integrado su desarrollo en un Web Processing Service (WPS) conforme con la especificación (05-007r7) del Open Geospatial Consortium (OGC) y para su implementación se ha utilizado el framework WPS de 52°North. Finalmente, se ha adaptado el geoportal GET SDI Portal diseñado conforme a la Directiva INSPIRE (2007/2/EC) con el fin de mostrar la integración del WPS y los resultados de las geocodificaciones en un mapa, intercambiando datos en formato JSON entre cliente y servidor

    A(e,ep)(\vec{e},e'\vec{p})B responses: from bare nucleons to complex nuclei

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    We study the occurrence of factorization in polarized and unpolarized observables in coincidence quasi-elastic electron scattering. Starting with the relativistic distorted wave impulse approximation, we reformulate the effective momentum approximation and show that the latter leads to observables which factorize under some specific conditions. Within this framework, the role played by final state interactions and, in particular, by the spin-orbit term is explored. Connection with the nonrelativistic formalism is studied in depth. Numerical results are presented to illustrate the analytical derivations and to quantify the differences between factorized and unfactorized approaches.Comment: 26 pages, 5 figures. Improved and extended version. To be published in Phys. Rev.

    Determinación de parámetros para la conformación en caliente de una aleación metálica amorfa base Fe

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    Los vidrios metálicos pueden conformarse plásticamente arriba de la temperatura de transición vítrea, en la región denominada del líquido sobreenfriado, y evitando la cristalización del material que está determinada no solamente por la temperatura de trabajo sino también por el tiempo de duración del proceso. Por ello, resulta de mucho interés tecnológico poder caracterizar temperaturas, tiempos, y tensiones para ser empleados como parámetros en la conformación. En este trabajo, presentamos resultados de valores de viscosidades, tensiones y tiempos alrededor de la temperatura de transición vítrea, obtenidos en una aleación amorfa sintetizada en nuestro laboratorio de composición química {[(Fe0.6Co0.3Ni0.1)75]B0.2Si0.05}96Nb4 (at.%). Para ello se usó un equipo desarrollado por nuestro grupo, capaz de inducir tratamientos térmicos con aplicación de cargas mecánicas en la probeta y monitoreando simultáneamente temperatura, elongación y resistencia eléctrica de la muestra. Los resultados muestran una temperatura de transición flujo viscosa de Tvs= 485 °C, con posibilidad de deformar plásticamente hasta los 550°C manteniendo cierto control de no caer en la cristalización. La viscosidad de la aleación varía entre h= 108 y 1012 Pa s, dependiendo de la velocidad de calentamiento, del tiempo en temperatura y de la carga del ensayo. Novedosos experimentos isotérmicos escalonados son también presentados.Metal glasses can be thermoplastic formed above the glass transition temperature, in the region called the supercooled liquid, and avoiding the crystallization of the material, which is determined not only by the working temperature but also by the time interval of the process. I is of great technological interest to be able to properly characterize temperatures, times, and stresses to be used as parameters in shaping. In this work, we present results ​​of viscosities, tensions and times values around the glass transition temperature, obtained in an amorphous alloy synthesized in our chemical composition laboratory {[(Fe0.6Co0.3Ni0.1)75]B0.2Si0.05}96Nb4 (at.%). For this, we used an experimental device developed by our group, capable of inducing heat treatments with the application of mechanical loads on the specimen and, simultaneously, scan temperature, elongation and electrical resistance of the sample. The results show a viscous flow transition temperature of Tvs = 485 ° C, with the possibility of thermoplastic forming up to 550 °C, while maintaining a certain control of not falling into crystallization. The viscosity of the alloy varies between h = 108 and 1012 Pa s, depending on the heating rate, the time in temperature and the test load. Novel stepped isothermal experiments are also presente
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