Mostrando ítems 205-217 de 217
Boronat Moreiro, Alfredo (Fecha de defensa: 2013-10-11)
This work has been developed in a line of research related whit the Intermediate Band (IB) concept, which explores overcoming the photovoltaic efficiency limits established for solar cells. The IB concept implies two issues: ...
Company Se, Georgina (Fecha de defensa: 2023-07-03)
(English) Respiratory diseases, along with heart diseases, are the most prevalent in the world. The acquisition of lung samples is essential for a correct diagnosis of the disease. For peripheral lesions it is not easy to ...
Luo, Chengyang (Fecha de defensa: 2022-06-21)
Radio frequency identification over measurable ultra-high frequency textile substrates (UHF-RFID) is a promising technology to develop new applications in the field of health and the Internet of Things (IOT), due to the ...
González Jiménez, José Luis (Fecha de defensa: 1998-01-19)
El ruido de conmutación generado por los circuitos digitales representa un problema importante que a menudolimita las prestaciones de los circuitos integradosdigitales y mixtos. éste ruido de conmutación estápresente en ...
Pallarés Valls, Oriol (Fecha de defensa: 2016-11-30)
This thesis deals with the development of a time synchronization algorithm for underwater sensor networks. The ease of deployment and maintenance of wireless networks leaded this research to the use of an acoustic communication ...
Aghazadeh Dafsari, Seyed Rasoul (Fecha de defensa: 2022-05-03)
Antenna array systems have a broad range of applications in radio frequency (RF) and ultra-wideband (UWB) communications to receive/transmit electromagnetic waves from/to the sky. They can enhance the amplitude of the input ...
Rosell Ferrer, Javier (Fecha de defensa: 1989-07-11)
En esta tesis se analizan las bases de la Tomografía de Impedancia Eléctrica (TIE) desde los aspectos de campos electromagnéticos, los electrodos y las propiedades eléctricas de los tejidos en seres vivos. Se analizan los ...
Martí Edo, Albert (Fecha de defensa: 2017-07-18)
Current theories and mechanisms of nerve impulse propagation inside neurons do not give a satisfactory explanation to the nanoscale processes that occur inside the membrane. Propagation at the dendritic zones, and at the ...
Guede Fernández, Federico (Fecha de defensa: 2018-09-06)
The adherence to a healthy lifestyle plays a key role for increasing life expectancy and living better. The main habits of healthy lifestyle are: physical activity, diet and sleep quality. Nowadays, many people use a ...
García Almudéver, Carmen (Fecha de defensa: 2014-07-29)
In 1925, Lilienfeld patented the basic principle of field effect transistor (FET). Thirty-four years later, Kahng and Atalla invented the MOSFET. Since that time, it has become the most widely used type of transistor in ...
Aymerich Capdevila, Nivard (Fecha de defensa: 2013-12-16)
During the last decades, human beings have experienced a significant enhancement in the quality of life thanks in large part to the fast evolution of Integrated Circuits (IC). This unprecedented technological race, along ...
Capellá Frau, Gabriel José (Fecha de defensa: 2015-03-26)
The number of applications that require the use of power converters has been continually increasing in the last years on account of environmental and economical concerns. The power to be processed by these converters has ...
Bou Balust, Elisenda (Fecha de defensa: 2017-07-17)
Resonant Inductive Coupling Wireless Power Transfer (RIC-WPT) has been proven to provide very high power transfer efficiencies (above 80%) for moderate distances, and is hence foreseen as a key technology to enable wireless ...