6,445 research outputs found
A GPU-based Evolution Strategy for Optic Disk Detection in Retinal Images
La ejecución paralela de aplicaciones usando unidades de procesamiento gráfico (gpu) ha ganado gran interés en la comunidad académica en los años recientes. La computación paralela puede ser aplicada a las estrategias evolutivas para procesar individuos dentro de una población, sin embargo, las estrategias evolutivas se caracterizan por un significativo consumo de recursos computacionales al resolver problemas de gran tamaño o aquellos que se modelan mediante funciones de aptitud complejas. Este artículo describe la implementación de una estrategia evolutiva para la detección del disco óptico en imágenes de retina usando Compute Unified Device Architecture (cuda). Los resultados experimentales muestran que el tiempo de ejecución para la detección del disco óptico logra una aceleración de 5 a 7 veces, comparado con la ejecución secuencial en una cpu convencional.Parallel processing using graphic processing units (GPUs) has attracted much research interest in recent years. Parallel computation can be applied to evolution strategy (ES) for processing individuals in a population, but evolutionary strategies are time consuming to solve large computational problems or complex fitness functions. In this paper we describe the implementation of an improved ES for optic disk detection in retinal images using the Compute Unified Device Architecture (CUDA) environment. In the experimental results we show that the computational time for optic disk detection task has a speedup factor of 5x and 7x compared to an implementation on a mainstream CPU
Negocios sobre derechos no incorporados a títulos-valores y sobre relaciones jurídicas especiales: Recapitulación y reflexiones en torno al contenido de unas jornadas de estudio
Origen y desarrollo de la supermanzana y del multifamiliar en la Ciudad de México
El texto analiza el origen y desarrollo del uso de bloques de vivienda en altura, conocidos en el ámbito mexicano como "multifamiliares", e implantados dentro de una fórmula de diseflo urbano que separaba al peatón del automóvil, la llamada "supermanzana", y que serían protagonistas de la fórmula del Estado mexicano en la implementación de sus políticas de vivienda para la ciudad de México. Se revisan los orígenes y las primeras propuestas de edificios multifamiliares de finales de la década de los cuarenta, en especial la Unidad Modelo y la Unidad Esperanza para seguir con los grandes conjuntos multifamiliares del arquitecto Mario Pani construidos entre 1946 y 1965. El desarrollo de la supermanzana y del multifamiliar refleja la influencia de las ideas del Movimiento Moderno tanto urbanísticas como de tipología de vivienda. Urbanísticas en el sentido de que la implantación de la supermanzana aspiraba a establecer un nuevo orden urbano en el tejido de la ciudad con su escala y con el incremento en la densidad. Y la tipología del multifamiliar representaba el anhelo de vivir en la modernidad con una serie de servicios integrados y amplios espacios libres.The text analyses the origin and development of housing-block units, known in Mexico as "multifamiliares" and implemented within a formula of urban design that separates the pedestrian of the car, the so called superblock, and who were protagonists of the formula of the Mexican state in the implementation of housing policies for the city of México. There are reviewed the origins and initial proposals for housing buildings in the final forties, specifically the Unidad Modelo and Unidad Esperanza and other bigger housing-block units design by Mario Pani and built between 1946 and 1965. The development of the superblock and of the housing-block units reflects the influence of the ideas ofthe Modern Movement about urban design and new housing typology. New urban design with the superblock and it's ideal of establishing a new urban order in the urban fabric through a bigger scale and higher density. And with the new typology ofthe housingblock units as representing the aspirations to live in the modernity with a series of integrated services and wide free spaces
Thermal equilibrium in Einstein's elevator
We report fully relativistic molecular-dynamics simulations that verify the
appearance of thermal equilibrium of a classical gas inside a uniformly
accelerated container. The numerical experiments confirm that the local
momentum distribution in this system is very well approximated by the J\"uttner
function -- originally derived for a flat spacetime -- via the Tolman-Ehrenfest
effect. Moreover, it is shown that when the acceleration or the container size
is large enough, the global momentum distribution can be described by the
so-called modified J\"uttner function, which was initially proposed as an
alternative to the J\"uttner function
Electrical and Domotic Installation in a Family House
En el presente Proyecto de Fin de Carrera, he realizado la instalación de una
vivienda familiar, la cual siguiendo con la actual conciencia medioambiental, se ha
planteado desde el punto de ser energéticamente autosuficiente, aunque la vivienda
estará conectada a red, en caso de haber algún problema etc, no pudiera darse esa
autosuficiencia, y no quedarse sin electricidad.
Para ello el Proyecto se ha dividido en dos partes bien diferenciadas,
instalación eléctrica y la automatización de la casa(también conocida hoy día como
domótica).Ingeniero Técnico Industrial, Especialidad en ElectricidadProyecto Erasmus realizado en la Universidad de Pécs (Rumanía) - Texto en inglés, resumen en españo
Comparative analysis between Sir Gawain and the Green Knight and The Lord of the Rings: a thematic comparison
Trabajo de fin de Grado. Grado en Estudios Ingleses. Curso académico 2015-2016[EN]This project attempts to show the thematic relation which exists between Sir Gawain
and the Green Knight (15th Century) and The Lord of the Rings (20th Century). Even though
both pieces are five centuries far from each other, they share different themes with their
similarities and their differences. Sir Gawain and the Green Knight could be seen as the most
representative work in which we can learn quite about knights, their traditions, and their time
in England. Meanwhile, The Lord of the Rings can be considered the perfect trilogy where we
can find, apart from knights, different races and different problems which knights and
everybody else will have to face in Middle-Earth. Only three main themes will be discussed
and analysed in which we will be able to see their similarities in both stories, and their
differences about how the same theme can be explored from different perspectives.
[ES]Este Trabajo de Fin de Grado trata de mostrar la relación temática que existe entre Sir
Gawain and the Green Knight (Siglo XV) y The Lord of the Rings (Siglo XX). A pesar de ser
obras que están separadas por cinco siglos comparten diferentes temas con sus semejanzas y
sus diferencias. Sir Gawain and the Green Knight podría ser visto como el trabajo más
representativo en el cual podemos aprender bastante sobre caballeros, sus tradiciones y su
tiempo en Inglaterra. Mientras tanto, The Lord of the Rings puede ser considerada la perfecta
trilogía donde podemos encontrar, además de caballeros, diferentes razas y diferentes
problemas que caballeros y todos los demás deberán hacer frente en la Tierra Media. Solamente
tres temas principales serán discutidos y analizados en los cuales seremos capaces de ver sus
semejanzas en ambas historias y sus diferencias, sobre cómo el mismo tema puede ser
explorado desde diferentes perspectivas
Effect of Montelukast 10 mg in Elderly Patients with Mild and Moderate Asthma Compared with Young Adults. Results of a Cohort Study
Background:
The clinical characteristics and physio-pathogenic mechanisms of asthma in patients older than 60 years appear to differ from the
behavior described for other age groups. Therefore, the effectiveness of medications for elderly patients with asthma should not be
extrapolated from studies conducted on teenagers or young adults.
Objective:
The study aimed to establish the clinical effect of montelukast 10 mg in elderly patients with mild and moderate asthma compared to
its effect on young adults.
Method:
A prospective cohort study was conducted during 12 weeks of follow-up, which consecutively included the total population of adult
patients attended by a group of 21 general practitioners, between July and December 2016. Young adults (18-59 years) and older
adults were included (60 years or older) with mild or moderate asthma, which, according to the criteria of his treating physician, had
been prescribed montelukast 10 mg/day. The variables of interest were: use of inhaled corticosteroids during the last month, use of
inhaled beta-2 adrenergic agonists as a rescue in the last month, having attended the emergency service during the last month due to
an asthma attack, presence of wheezing in the physical examination, the number of attacks in the last month and the number of days
without symptoms in the last month.
Results:
A total of 126 patients entered the cohort and 104 completed the follow-up, of which 29% were older adults. On admission, 65.4% of
patients (68/104) had used rescue inhaled beta2 in the last month and had been using schemes with corticosteroids. After 12 weeks of
follow-up, 58.1% (43/74) of the young adults required treatment schedules with corticosteroids, while in the elderly, only 36.7% of
the patients (11/30) required this treatment scheme (p-value: 0.047). Regarding the use of rescue inhaled beta-2 at 12 weeks, 55% of
young adults reported using them, compared to 33.3% of older adults (p-value: 0.041).
Conclusion:
In this cohort of patients, treated with montelukast 10 mg/day for 12 weeks, there was a reduction of broncho-obstructive symptoms
and exacerbations of the disease. In older adults compared to young adults, a greater red
Photo Enhancement On Mobile Devices Using Deep Neural Networks
In recent years, the return of the usage of Artificial Neural Networks has lead to the
greatest improvements in the field of Artificial Intelligence, due to the huge diversity
of different applications that deep learning models has in a large variety of research
fields, and also the evolution of information processing systems capacity. This thesis
aims to study which deep neural networks models are most suitable for photo
enhancement, to generate images with certain desired characteristics.
Model selection has been done by comparing the both supervised, Convolutional
Neural Networks, and unsupervised models, Generative Adversarial Networks. It has
been demonstrated that Generative Adversarial Networks have great potential by
showing results that compete with the state of the art. The chosen model is a
Generative Adversarial model which outperforms the rest in terms of a combination
of enhancement quality and time taken in the process. Moreover, since the model is
compatible with mobile devices it has been integrated and evaluated in a BQ
smartphone, to proof its viability on mobile devices.Doble Grado en Ingeniería Informática y Administración de Empresa
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