Mostrando ítems 180-199 de 223
Cifuentes López, Alejandro (Fecha de defensa: 2023-01-19)
(English) This thesis focuses on the study of the catalytic production of hydrogen from methanol and water. Catalytic production is carried out in a catalytic membrane reactor which manages to produce and purify hydrogen. ...
Armelín, Elaine (Fecha de defensa: 2002-04-26)
"Síntesis y caracterización de nuevas poliesteramidas: estudio de sus propiedades."<br/><br/>El estudio de los polímeros biodegradables ha adquirido un gran interés en los últimos años por ser una alternativa al reciclado ...
Bou Serra, Jordi (Fecha de defensa: 1994-07-03)
Con la finalidad de obtener nuevos materiales de altas prestaciones a partir de recursos naturales, la memoria de la tesis "Síntesis y caracterización de poliamidas derivadas del ácido tartárico", presentada por Jordi Bou ...
Majó Roca, Mª Antonia (Fecha de defensa: 2003-04-03)
Dicho trabajo de investigación se basa en la preparación, caracterización y evaluación de propiedades de poliamidas derivadas de la L-lisina y de los ácidos L y D tartáricos, con posibilidades de utilización como polímeros ...
Ortega Marín, María del Carmen (Fecha de defensa: 2016-01-25)
En esta tesis se sintetiza y caracteriza un nuevo polímero basado en el biimidazol, el poli[4-4'(p-fenilen)-2,2'bi-1H-imidazol] (PBII), con el objetivo de evaluar su viabilidad como polímero conductor en membranas de pilas ...
Franco García, Ma. Lourdes (María Lourdes) (Fecha de defensa: 1994-10-14)
Se han sintetizado nylons 1,n (n=5,6,7,8,10 y 12); nylons 2/n estadísticos con distintas proporciones de glicina (n=6, 11 y 12) y nylons m,n (m=6,12; n=6) con glicina incorporada secuencialmente y al azar. Los productos ...
Martínez Palau, Meritxell (Fecha de defensa: 2008-04-16)
La creciente demanda de materiales biodegradables para su utilización en el campo de la biomedicina ha incrementado el interés en la síntesis de nuevos polímeros. Los poliésteres alifáticos constituyen el grupo de polímeros ...
Lopes Rodrigues, Maximilien (Fecha de defensa: 2019-11-11)
This thesis focuses on the preparation of nanomaterials made of proteins and polymers. Even though the technology has advanced in the last decades to design new devices at the atomic scale, researchers are still inspired ...
Herrera Hernández, María Guadalupe (Fecha de defensa: 2017-03-24)
Dietary polyphenols represent a group of secondary metabolites which widely occur in fruits, vegetables, wine, tea, extra virgin olive oil, chocolate and other cocoa products. Previous studies have shown the interaction ...
Millán Elías, Cinthia Raquel (Fecha de defensa: 2017-10-27)
AT-rich sequences confer unique properties to DNA, such as high polymorphism and flexibility. The abundance of AT-rich DNA in several pathogens' genomes and the ability of specific molecules to selectively target AT base ...
Acosta Reyes, Francisco Javier (Fecha de defensa: 2016-05-26)
Non-coding DNA is rich in adenines and thymines. Their unique properties, such as high polymorphism, flexibility, transitional states that lead to DNA hairpin formation and the possibility to adopt either Watson-Crick or ...
Rodríguez Contreras, Alejandra (Fecha de defensa: 2013-06-06)
Nowadays biopolymers are a good alternative to petrochemical polymers. One of these biopolymers is Poly[(R)-3- Hydroxybutyrate] (PHB) which is produced from renewable resources by various microorganisms and, after its use ...
Casas Carné, María del Pilar (Fecha de defensa: 2010-03-25)
Cotxes, camions, tractors, avions... tots necessiten els neumàtics com a component imprescindible per al seu funcionament. Malauradament, degut al desgast per ús, els neumàtics tenen una vida útil limitada que obliga a ...
Triguero Enguídanos, Jordi (Fecha de defensa: 2019-03-08)
In this thesis, different theoretical approaches designed to study a wide interval of length- and/or time-scales have been used to examine the microscopic properties of chemical systems with varying degrees of complexity ...
Palacios Rosas, Adriana (Fecha de defensa: 2011-01-11)
Entre els accidents greus que poden ocórrer a les instal·lacions industrials o durant el transport de substàncies perilloses, els dolls de foc presenten un especial interès. Tot i que tenen una distància relativament més ...
Morales Gámez, Laura Teresa (Fecha de defensa: 2012-01-23)
Polymer clay nanocomposites of polyamides and biodegradable polymers with three kinds of organomodified clays were prepared by different techniques (in situ polymerization, solution casting, and melt mixing). The polymers ...
Márquez Lobato, Yolanda (Fecha de defensa: 2016-11-18)
Biomaterials based on block segmented copolymers constituted by hard and soft segments have attracted much attention for biomedical applications in the last decades, specifically as absorbable monofilament sutures. ...
Javadian, Hamedreza (Fecha de defensa: 2020-07-16)
Rare Earth Elements (REEs) are known as the remarkable components in many technologies that are driving the modern world. They are widely used in chemical engineering, permanent magnets, fluorescent lighting, sensors, cell ...
Keridou, Ina (Fecha de defensa: 2021-04-14)
In the last decades, polymeric biomaterials, due to their advanced physical and mechanical properties, have been used in a vast variety of surgical and pharmaceutical applications. In this thesis, a study on crystallinity, ...
Ferrer Mallén, Olga (Fecha de defensa: 2015-12-22)
This thesis focused on the feasibility of substituting, partially or totally, drinking water treatment plant (DWTP) conventional pre-treatment by membrane based units, in particular by ultrafiltration (UF). For such purpose, ...