Now showing items 21-40 of 181
Zapata Rodriguez, Mireya (Date of defense: 2017-09-29)
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 ...
Fernández Martínez, Daniel (Date of defense: 2008-11-01)
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 ...
Moure García, David (Date of defense: 2017-06-29)
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 ...
Gómez Clapers, Joan (Date of defense: 2015-11-18)
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 ...
García Tormo, Albert (Date of defense: 2011-04-15)
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 ...
Sánchez Terrones, Benjamín (Date of defense: 2012-01-13)
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 ...
Rodríguez Montañés, Rosa (Date of defense: 1992-12-17)
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 ...
González Díez, David (Date of defense: 2001-09-27)
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 ...
López Martínez, Antonio M. (Antonio Miguel) (Date of defense: 2006-10-11)
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 ...
Carreras Pons, Normandino (Date of defense: 2016-04-11)
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 ...
Gerling Sarabia, Luis Guillermo (Date of defense: 2017-11-15)
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). ...
Piñal Moctezuma, Juan Fernando (Date of defense: 2019-09-27)
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 ...
Di Virgilio, Vito (Date of defense: 2015-11-27)
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 ...
Almache Hernández, Rosa Estefanía (Date of defense: 2023-06-29)
(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 ...
Borràs Cristòfol, Ramon (Date of defense: 2019-03-22)
La recerca duta a terme en aquesta tesi doctoral ha tingut com a principal objectiu millorar els sistemes de test i de caracterització de la resposta òptica dels díodes làser. La recerca s'ha orientat en l'estudi de la ...
Aragonès Cervera, Xavier (Date of defense: 1997-12-16)
L'acoblament de soroll a través del substrat en circuits integrats mixtos és un important problema que sovint limita les prestacions de la circuiteria analògica. Les característiques d'aquest tipus d'acoblament i els factors ...
Robert Sanxis, Francesc Josep (Date of defense: 2016-01-29)
Learning specific knowledge and developing cross-curricular competencies under the new frame of the European Higher Education Area (EHEA), is a problem not yet solved by teaching practices based on traditional instructional ...
Manuel Lázaro, Antonio (Date of defense: 1996-11-08)
Casañas Bueno, Roberto (Date of defense: 2003-12-12)
La caracterización eléctrica del tejido biológico adquiere mayor relevancia cada día. En este proceso, la determinación de la conductividad y permitividad eléctrica del tejido biológico aumenta en importancia en el área ...
Salazar Soler, Jorge (Date of defense: 1997-12-15)
El objetivo principal de esta Tesis se centra en la mejora de la resolución axial de los sistemas de ultrasonidos basados en la medida del tiempo de vuelo y/o la recepción de ecos, utilizando soluciones de bajo coste. Se ...