Now showing items 21-40 of 222

    Characteristics of bioactive molecules with antioxidant and biological activities of some medicinal and edible plants 

    Ouerfelli, Manel (Date of defense: 2021-11-24)

    The present work has focused on the study of two edible plants, with attributable medicinal values, named Anthyllis vulneraria L. (A.vulneraria) and Azadirachta indica L. (A.indica) collected in Tunisia and India, ...

    Nanomaterials for controlling bacterial pathogens and resistance occurrence 

    Ivanova, Aleksandra Asenova (Date of defense: 2022-03-11)

    lnfectious diseases are the leading cause of death worldwide while the constantly raising antimicrobial resistance (AMR) is a major concern for the public health. During the infection establishment bacteria! pathogens ...

    Estudio de la evaporación de vertidos de disoluciones acuosas de amoníaco 

    Corruchaga Guerrero, Agustín (Date of defense: 2021-10-04)

    Evaporation from liquid spills is a phenomenon of great importance. This phenomenon has been studied by a number of researchers. However, most of them have focused on the evaporation of pure liquid spills or hydrocarbon ...

    Producción de hidrógeno a partir de amoniaco en reactores de paredes catalíticas 

    Lucentini, Ilaria (Date of defense: 2021-11-05)

    Due to the problems associated with the generation and storage of hydrogen in portable applications, the use of ammonia fer the on-site production of hydrogen through its catalytic decomposition has been proposed. This ...

    Conducting polymers and hybrid materials for technological applications 

    Ruano Torres, Guillem (Date of defense: 2021-11-12)

    Depletion of natural resources and non-renewable energy sources has recently accelerated due to the development of globalized economy and industrialization. During the last years, the scientific community has devoted much ...

    Modified polymers as electroactive biomaterials 

    Molina García, Brenda Guadalupe (Date of defense: 2020-07-13)

    Development of polymeric biomaterials with tailored properties is essential for expanding biotechnologies and, therefore, proposing novel solutions for diagnostic and treatments in modern medicine. In order to contribute ...

    Antioxidant properties and applications of pecan (Carya illinoinensis) 

    Villasante Dueñas, Juliana (Date of defense: 2021-02-18)

    At the present time, the environmental challenges are the second concern on a global level, and the first one in some countries. This is one of the main reasons behind the recent boost of new methods of production within ...

    Optimization strategies for efficient dosage of H2O2 in Fenton and photo-Fenton processes 

    Yu, Xiangwei (Date of defense: 2021-07-07)

    This Thesis work addresses the challenge of designing hydrogen peroxide (H2O2) dosage Strategies for improving Fenton and photo-Fenton applications. The determination of the H2O2 dosage scheme that minimizes hydrogen ...

    TiO2-based heterostructure photocatalysts for enhanced hydrogen production 

    Xing, Congcong (Date of defense: 2021-07-30)

    The photocatalytic production of hydrogen from water and biomass derivatives such as ethanol, glycerol and sugars is a highly attractive strategy to generate environmentally benign hydrogen. Ethanol is more easily oxidized ...

    Ultrasound micromolding technique and real-time X-ray diffraction using synchrotron radiation : applications to porous scaffolds for biomedical devices and study of thermal-induced transitions 

    Olmo Osuna, Cristian (Date of defense: 2021-07-16)

    Current market trend is moving to miniaturized specimens, especially in the biomedical field seeking high effective and less invasive treatrnent. Ultrasound (US) micromolding is a new technique developed to the aim of ...

    A contribution to sustainable management of integrated material/energy networks in process industries 

    Morakabatchiankar, Shabnam (Date of defense: 2021-07-22)

    Towards sustainability forces process industries to change their traditional patterns. Therefore, efficient retrofitting has been a significant challenge and raised several issues, motivating the process system engineering ...

    A study of epoxy composites for high thermal conductivty applications 

    Moradi, Sasan (Date of defense: 2021-07-08)

    Nowadays. both electronic and microelectronic circuits have great relevance and wide application in our daily lives and are increasingly being used with higher powers and frequencies. One of the main problems faced by their ...

    Synthesis and characterization of polycarbonates from epoxidized vegetable oils, propylene oxide and carbon dioxide 

    Binti Shaarani, Farra Wahida (Date of defense: 2021-05-20)

    The current research is primarily focused on the preparation of a polycarbonate using epoxidized linseed oil (ELO) and epoxidized soybean oil (ESO) as feedstocks. The presence of unsaturation in vegetable oil structure ...

    A contribution to chemical process operation support: new machine learning and surrogate models based approaches for process optimization, supervision and control 

    Shokry Abdelaleem Taha Zied, Ahmed (Date of defense: 2021-05-05)

    In the chemical process industry, the decision-making hierarchy is inherently model-based. The scale and complexity of the considered models (e.g., enterprise, plant or unit model) depend on the decision-making level (e.g., ...

    Study on crystallinity, properties and degradability of poly-4-hidroxybutyrate and related polyesters 

    Keridou, Ina (Date of defense: 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, ...

    Study on adsorption behavior of rare earth elements onto magnetic nanocomposites of carboxymethyl chitosan, alginate and novel biodegradable polyamide 

    Javadian, Hamedreza (Date of defense: 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 ...

    Rare earth elements recovery from E-wastes by solvent extraction and supported liquid membrane processes 

    Pavón Regaña, Sandra (Date of defense: 2019-11-28)

    Nowadays, rare earth elements (REEs) have gained importance due to their indispensable and critical use in many high-tech industries like hybrid cars, fluorescent lamps, flat screen televisions, mobile phones, disc drives ...

    Decision support strategies for the efficient implementation of circular economy principles in process systems 

    Somoza Tornos, Ana (Date of defense: 2020-03-26)

    Economic growth at any expense is no longer an option. Awareness of the growing human footprint is crucial to face the problems that the impoverishment of ecosystems is causing and will cause in the future. One of the key ...

    Infrared image processing tools for automated aerial remote sensing of active wildland fires 

    Valero Pérez, Mario Miguel (Date of defense: 2019-10-30)

    Forest fires are natural phenomena essential for ecosystem balance. However, their impact on society is increasing. Emergency managers are facing unprecedented crises producing massive evacuations, numerous casualties and ...

    Use of mathematical methods in the resolution of chemical engineering problems 

    Valverde Salamanca, Abel (Date of defense: 2020-07-27)

    This thesis consists of a compendium of five works that illustrate the utilization of selected mathematical methods to solve specific chemical engineering problems. Hence, the thesis is intended to cover both, a review of ...