Gestió de l'aplicatiu PFC

Els objectius a resoldre són: integrar l’aplicatiu a la web actual del SIEE (Servei d’Informàtica Escoles d’Enginyeria) de forma transparent; gestió integral del procés d’assignació de projectes finals de carrera per web; automatitzar funcions puntuals per als coordinadors de projectes i facilitar el control dels alumnes que s’han matriculat.

PFC J2EE : botiga de Llibres On-Line KIWIX

L'objectiu del present Projecte final de carrera consisteix en la realització d'un dissenye implementació d'un lloc web de venta de llibres al detall.El sistema mostra a l'usuari una sèrie de productes. Tots aquest productespoden ser adquirits per l'usuari prèvia identificació i validació de les dades.

PFC : Diseño de un Framework de presentación

L'objectiu principal d'aquest PFC és el disseny i la implementació d'un nou framework de presentació per a aplicacions J2EE, com el seu títol indica, que sigui capaç de solucionar els inconvenients dels actuals frameworks del mercat que implementen aquesta funcionalitat, així com facilitar la implementació de la seva funcionalitat al desenvolupador.

PFC : Analitzador de models UML

Aquest projecte descriu la construcció d'una aplicació encarregada de realitzar l'anàlisis d'un model UML. Està encabit dins el marc d'un aplicatiu de gestió de models en un repositori centralitzat de la àrea de Tècniques Avançades d'Enginyeria de Programari de la carrera d'Enginyeria Informàtica de la UOC.

PFC-J2EE Online Bookstore OLBS

Es planteja el projecte de la creació d'una tenda de llibres en línea (Online Bookstore - OLBS), com a extensió d'una actual cadena de tendes físiques, o bé com a ens independent de nova aparició. Amb la OLBS pretenem que el mitjà de comunicació amb el client sigui un mitjà de l'àmbit de les noves tecnologies, per tal de poder arribar a aquell sector de la població que les usa majoritàriament, ampliant la nostra clientela potencial, alhora que facilitem l'accés als clients tradicionals. Així mateix renovem la imatge de la nostra organització, adequant-la als temps actuals.

PFC - seguretat informàtica : disseny i desenvolupament d'un esquema criptogràfic per gestionar de forma segura els historials mèdics dels pacients a través d'una xarxa de comunicacions

Es vol proporcionar una solució en el camp de la sanitat perquè els metges puguin gestionar els historials mèdics dels seus pacients de forma remota i segura, i perquè els pacients puguin consultar la seva història mèdica també remotament i amb total seguretat en qualsevol moment i ubicació.

PFC - Competencias Profesionales - Memoria

Análisis de experiencias de enseñanza-aprendizaje de la competencia comunicativaescrita a nivel de Ingeniería Informática.

PFC .NET SOA

El proyecto desarrolla un análisis de dos arquitecturas Orientadas a Servicios, como son los Servicios Web XML y WCF. La estructura del proyecto se divide en el estudio de las tecnologías y en la implementación de aplicaciones con cada una de ellas.

Biomass Utilization in PFC Co-firing System with the Slagging and Fouling Analysis

Master’s thesis Biomass Utilization in PFC Co-firing System with the Slagging and Fouling Analysis is the study of the modern technologies of different coal-firing systems: PFC system, FB system and GF system. The biomass co-fired with coal is represented by the research of the company Alstom Power Plant. Based on the back ground of the air pollution, greenhouse effect problems and the national fuel security today, the bioenergy utilization is more and more popular. However, the biomass is promoted to burn to decrease the emission amount of carbon dioxide and other air pollutions, new problems form like slagging and fouling, hot corrosion in the firing systems. Thesis represent the brief overview of different coal-firing systems utilized in the world, and focus on the biomass-coal co-firing in the PFC system. The biomass supply and how the PFC system is running are represented in the thesis. Additionally, the new problems of hot corrosion, slagging and fouling are mentioned. The slagging and fouling problem is simulated by using the software HSC Chemistry 6.1, and the emissions comparison between coal-firing and co-firing are simulated as well.

Categorization in IT and PFC: Model and Experiments

In a recent experiment, Freedman et al. recorded from inferotemporal (IT) and prefrontal cortices (PFC) of monkeys performing a "cat/dog" categorization task (Freedman 2001 and Freedman, Riesenhuber, Poggio, Miller 2001). In this paper we analyze the tuning properties of view-tuned units in our HMAX model of object recognition in cortex (Riesenhuber 1999) using the same paradigm and stimuli as in the experiment. We then compare the simulation results to the monkey inferotemporal neuron population data. We find that view-tuned model IT units that were trained without any explicit category information can show category-related tuning as observed in the experiment. This suggests that the tuning properties of experimental IT neurons might primarily be shaped by bottom-up stimulus-space statistics, with little influence of top-down task-specific information. The population of experimental PFC neurons, on the other hand, shows tuning properties that cannot be explained just by stimulus tuning. These analyses are compatible with a model of object recognition in cortex (Riesenhuber 2000) in which a population of shape-tuned neurons provides a general basis for neurons tuned to different recognition tasks.

Proyecto de formación desde el centro (PFC).

Un proyecto formativo desde el centro expresa la conveniencia de comprobar la buena fe puesta en el cambio. El valor de un proyecto de... debe ser patrocinado por profesores que entienden los propósitos y fines del cambio producido y lo valoran dentro del contexto de la enseñanza. En los planes formativos se han acotado las zonas de influencia profesional hasta convertir el mundo formativo en un zoco, y se ha impuesto como ideal concienciar a profesores para que los estudiantes aprendan mediante un zarandeo mental basado en competencias educativas simples. Todo se resume en un movimiento organizativo que pretende elevar la dignidad de la institución escolar y así, el término de la expresión Proyecto Formativo desde el Centro es una forma directa de mejorar su calidad.

Programmable PFC based hybrid multipulse power rectifier for ultra clean power application

A novel hybrid three-phase rectifier is proposed. It is capable to achieve high input power factor (PF) and low total harmonic input currents distortion (THDI). The proposed hybrid high power rectifier is composed by a standard three-phase six-pulse diode rectifier (Graetz bridge) with a parallel connection of single-phase Sepic rectifiers in each three-phase rectifier leg. Such topology results in a structure capable of programming the input current waveform and providing conditions for obtaining high input power factor and low harmonic current distortion. In order to validate the proposed hybrid rectifier, this work describes its principles, with detailed operation, simulation, experimental results, and discussions on power rating of the required Sepic converters as related to the desired total harmonic current distortion. It is demonstrated that only a fraction of the output power is processed through the Sepic converters, making the proposed solution economically viable for very high power installations, with fast investment payback. Moreover, retrofitting to existing installations is also feasible since the parallel path can be easily controlled by integration with the existing dc-link. A prototype has been implemented in the laboratory and it was fully demonstrated to both operate with excellent performance and be feasibly implemented in higher power applications.

A novel programmable PFC based hybrid rectifier for ultra clean power application

A novel hybrid high power rectifier capable to achieve unity power factor is proposed in this paper. Single-phase SEPIC rectifiers are associated in parallel with each leg of three-phase 6-pulse diode rectifier resulting in a programmable input current waveform structure. In this paper it is described the principles of operation of the proposed converter with detailed simulation and experimental results. For a total harmonic distortion of the input line current (THDI) less than 2% the rated power of the SEPIC rectifiers is 33%. Therefore, power rating of the SEPIC parallel converters is a fraction of the output power, on the range of 20% to 33% of the nominal output power, making the proposed solution economically viable for high power installations, with fast pay back of the investment. Moreover, retrofits to existing installations are also possible with this proposed topology, since the parallel path can be easily controlled by integration with the already existing de-link. Experimental results are presented for a 3 kW implemented prototype, in order to verify the developed analysis.

Programmable PFC based hybrid multipulse power rectifier for utility interface of power electronic converters

In this paper it is proposed a novel hybrid three-phase rectifier capable to achieve high input power factor (PF), and low total harmonic distortion in the input currents (THDI). The proposed hybrid high power rectifier is composed by a standard three-phase 6-pulses diode rectifier (Graetz bridge) with a parallel connection of single-phase Boost rectifiers in each three-phase rectifier leg. Such topology results in a structure capable of programming the input current waveform and providing conditions for obtaining high input power factor and low harmonic current distortion. In order to validate the proposed hybrid rectifier, this paper describes its principles of operation, with detailed experimental results and discussions on power rating of the required Boost converters as related to the desired total harmonic current distortion. It is demonstrated that only a fraction of the output power is processed through the Boost converters, making the proposed solution economically viable for very high power installations, with fast pay back of the investment. Moreover, retrofitting to existing installations is also feasible since the parallel path can be easily controlled by integration with the existing de-link. A prototype rated at 6 kW has been implemented in laboratory and fully demonstrated its operation, performance and feasibility to high power applications. © 2005 IEEE.