(001) and (110) La(2/3)Ca(1/3)MnO(3) epitaxial ferromagnetic electrodes: a comparative study 

Cañero Infante, Ingrid (Date of defense: 2008-04-08)

3D printing of zirconia-based ceramic materials 

Yarahmadi, Mona (Date of defense: 2023-05-26)

(English) Zirconia stands out among oxide ceramics for its superior mechanical properties. This approach resulted from the significant research that has been conducted since the discovery of the tbughening capabilities of ...

3D-printed polymeric bioresorbable stents for cardiovascular applications 

Chausse Calbet, Victor (Date of defense: 2023-05-26)

(English) Bioresorbable stents (BRS) have been envisioned as a revolution in the treatment of coronary heart disease. Ideally, stents would initially retain sufficient radial strength after implantation to prevent vessel ...

4H-SiC Integrated circuits for high temperature and harsh environment applications 

Alexandru, Mihaela (Date of defense: 2013-09-10)

Silicon Carbide (SiC) has received a special attention in the last decades thanks to its superior electrical, mechanical and chemical proprieties. SiC is mostly used for applications where Silicon is limited, becoming a ...

A computational micromechanics investigation of longitudinal strength in unidirectional fibre reinforced composites 

Barzegar, Mostafa (Date of defense: 2022-09-26)

The use of Fibre Reinforced Polymers (FRP) composites has grown in popularity over the last few decades. They offer outstanding mechanical properties combined with a low density, making them an excellent solution for many ...

A constitutive model of human esophagus tissue with application for the treatment of stenosis 

Sánchez Molina, David (Date of defense: 2013-11-07)

This dissertation is a research about the mechanical behavior of the human esophagus. This work is intended to be applied in the treatment of stenosis and other esophageal diseases that frequently require a procedure of ...

A contribution to multi-criteria decision making in sustainable energy management based on fuzzy and qualitative reasoning 

Afsordegan, Arayeh (Date of defense: 2015-12-21)

Energy problems are serious problems caused by limited resources and by human activity such as deforestation, water pollution and various other long-term practices that have environmental impact which produces global warming ...

A damage-based fatigue life prediction method for metallic alloys and composites 

Parareda Oriol, Sergi (Date of defense: 2023-12-04)

(English) Fatigue failures in materials have been studied for centuries, with early pioneers like August Wöhler noting that repeated loading, even below the static strength of the material, could lead to structural ...

A model for the nonlinear, time-dependent and strengthening analysis of shear critical frame concrete structures 

Ferreira, Denise Carina Santos (Date of defense: 2013-03-22)

Nonlinear fibre beam models, due to its intrinsic simplicity and computational efficiency, are often an adequate alternative to the complex nonlinear plane and solid FE models for the assessment of entire frame structures. ...

A study of the rheological properties and injectability of calcium phosphate cements : application to minimally invasive surgical procedures and scaffold fabrication for tissue engineering through rapid prototyping 

Maazouz, Yassine (Date of defense: 2018-10-15)

The present work addresses two different applications enabled by a specific and useful property of calcium phosphate cements (CPCs): injectability. On the one hand minimally invasive procedures involving the use of CPCs ...

Active power sharing and frequency regulation in inverter-based islanded microgrids subject to clock drifts, damage in power links and loss of communications 

Rosero Chandi, Carlos Xavier (Date of defense: 2020-02-06)

Microgrids (MGs) are small-scale power systems containing storage elements, loads and distributed generators that are interfaced with the electric network via power electronic inverters. When an MG is in islanded mode, its ...

Addressing strategic environmental assessment in Mexico's transition towards renewable energy : geospatial approach of collective intelligence as prospective support in the planning process 

Díez Rodríguez, José J. (Date of defense: 2017-09-15)

The transition towards an environmentally sustainable society involves a substantial transformation of the configuration of the energy system, and therefore, it entails a significant shift in planning process strategy. ...

Advanced characterization of thermoelectric materials and devices by impedance spectroscopy 

Beltrán Pitarch, Braulio (Date of defense: 2020-11-10)

Els dispositius termoelèctrics (TEs) poden convertir directament calor en electricitat o usar electricitat per crear una diferència de temperatura, no obstant això, actualment no estan molt estesos a causa de la seua baixa ...

Advanced laser deposition of nanocarbon-based supercapacitor electrodes 

García Lebière, Pablo (Date of defense: 2022-11-11)

Els supercondensadors o condensadors electroquímics són dispositius capaços d’emmagatzemar i alliberar energia en un període de temps curt, sent crucials pels sistemes elèctrics d’alta potència. El desenvolupament de ...

Advanced semiconductors for photo-electrocatalytic solar fuel production 

Cárdenas Morcoso, Drialys (Date of defense: 2020-07-20)

Uno de los retos actuales de la ciencia y la tecnología es el desarrollo y utilización de fuentes de energías limpias, sostenibles y seguras, con el fin de sustituir el uso de combustibles fósiles. La energía solar, única ...

Advanced Studies on Dye-Sensitized Solar Cells 

Ruiz Raga, Sonia (Date of defense: 2013-05-13)

The conversion of sunlight into electricity is one of the most promising energy sources because is renewable and available worldwide. Therefore, is desirable to develop low cost, stable and efficient photovoltaic devices ...

Advances in nonlinear observer design for state and parameter estimation in energy systems 

Cecilia Piñol, Andreu (Date of defense: 2022-04-19)

(English) Critical energy challenges are forcing a rapid modification of the current energy infrastructure. lndeed, larger renewable energy penetration, more distributed generation and storage, and higher degree of autonomy ...

Aerodynamic analysis of complex geometries using CFD 

Aljure Osorio, David Eduardo (Date of defense: 2017-06-02)

Aerodynamic analysis has become one of the most important tools in many engineering applications. In this sense, this thesis work is aimed at performing aerodynamic analysis of different geometries, expanding the available ...

Aerogels based on biodegradable polymers and clay 

Wang, Liang (Date of defense: 2015-12-16)

Foam-like aerogels based on biodegradable polymers and sodium montmorillonite (Na+-MMT) clay were prepared through an environmentally friendly freeze-drying process. Both synthesized and bio-based polymers were utilized ...

Aesthetic impact of Solar Energy Systems. Conceptual framework. social perception, and European projects involvement 

Sánchez-Pantoja Belenguer, Núria (Date of defense: 2020-11-30)

We are currently witnessing a constant increase in the presence of renewable energies in the urban environment, especially solar energy. This inevitably causes a visual impact that is not always socially accepted. The main ...