Universitat Politècnica de Catalunya
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En este trabajo tesis se estudia el procesado de señales impulsivas generadas por impactos entre cuerpos rígidos. Uno de los problemas que se encuentran al trabajar con impactos es que su análisis generalmente se ve limitado ...
El motor de inducción, es sin duda alguna, el más empleado en la industria actualmente y tiene un alto rendimiento en condiciones nominales. Sin embargo, con cargas ligeras, las pérdidas en el hierro reducen drásticamente ...
Currently, the interest for helping mitigate the emission of greenhouse gases caused by high fuel consumption in industrial vehicles has increased. In order to the reduction of fuel consumption in an industrial vehicle, ...
El objetivo deseado es la experimentación del control con microprocesador de un convertidor CC/CC, para optimizar su rendimiento. La filosofía utilizada se basa en el uso de dos políticas de control distintas para controlar ...
La presente tesis estudia, propone y realiza sus principales aportaciones en el campo del control para el convertidor CC/CA de tres niveles, sobre la topología denominada Neutral-Point-Clamped, aunque se puede extender a ...
A biological neural system consists of millions of highly integrated neurons with multiple dynamic functions operating in coordination with each other. Its structural organization is characterized by highly hierarchical ...
En esta tesis se muestran arquitecturas y circuitos CMOS para el control de actuadores electroestáticos MEMS y para la generación y procesado de las señales proveniente de microsistemas. <br/>En el primer capítulo se ...
The global seismic activity is extensively studied and well characterized by seismic networks focused on the seismic hazards derived from earthquakes. However, a specific study on volcano seismicity is not widespread, due ...
Cardiovascular diseases are an increasing source of concern in modern societies due to their increasing prevalence and high impact on the lives of many people. Monitoring cardiovascular parameters in ambulatory scenarios ...
Monitoring and regular performance analysis of Grid-Connected Photovoltaic (GCPV) systems are of primal importance in order to ensure an optimal energy harvesting and reliable power production at competitive costs. Main ...
Aquesta tesi tracta sobre amplificació de potència d'alt rendiment de senyals variables en el temps; concretament, tracta sobre conversió de potència eficient (amb mínimes pèrdues) de tensions DC continues en senyals de ...
The electrical impedance of biological samples is known in the literature as Electrical Bioimpedance (EBI). The Electrical Bioimpedance enables to characterize physiological conditions and events that are interesting for ...
La tesis contribuye a los esfuerzos dirigidos a la consecución de modelaciones precisas de los fallos de tipo puente. La tecnología de los circuitos digitales considerados es la CMOS estática. En la tesis se utiliza un ...
DE LA TESIS<br/><br/>Esta Tesis se centra en el estudio de las perturbaciones conducidas generadas por un ondulador de tensión en configuración de puente y alimentado de red a través de un rectificador no controlado. El ...
In this research work it has been implemented with the semiconductor characterization, base basically in the thermoelectric structure develop with Skutterudite nanostructures, under different manufacturing process, specially ...
Volcanic eruptions result of the energy stored within the planet are a danger to both populations and to the towns. As inevitable natural events, it is necessary to continue evolving in the study of the physics of the Earth ...
Crystalline silicon (c-Si) solar cells can be considered a highly industrialized and mature product with a record conversion efficiency of 26.6%, not far from the practical limit of 29.4% (for single p/n junction devices). ...
When fatigue is considered, it is expected that structures and machinery eventually fail. Still, when this damage is unexpected, besides of the negative economic impact that it produces, life of people could be potentially ...
Electrowetting technology, known since more than 100 years, just recently was successfully applied for the fabrication of devices such as pixels, liquid lenses and µTas (micro total analysis systems). Some of those devices ...
(English) In recent years, there has been an increasing need to find an environmentally friendly and low-pollution alternative for electricity production through solar energy absorption. Since 1950, photovoltaic researchers ...
