Ciencias Exactas y Ciencias de la Salud
Permanent URI for this collectionhttps://hdl.handle.net/11285/551014
Pertenecen a esta colección Tesis y Trabajos de grado de los Doctorados correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.
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- DC-DC high-order converters for renewable applications(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2024-05-07) Garza Arias, Enrique; Valdez Resendiz, Jesús Elias; Rosas Caro, Julio César; Escobar Valderrama, Gerardo; Castañeda Cuevas, Herman; Escuela de Ingeniería y Ciencias; Campus Monterrey; Guillén Aparicio, DanielThis dissertation develops new theory and techniques for DC-DC power converters interfacing renewable energies, specifically for converters classified as high-order based on their mathematical model, and thus generally more complex and difficult to analyze. The thesis encompasses the development of a new circuit topology, a control design focused on high-order dynamic systems, and the study of conversion systems between renewables and the utility grid. The dynamics of high-order converters present challenges for the stability and synthesis of controllers. By studying the nonlinear model of fourth-order non-minimum phase converters through zero dynamics, it has been established that some of these can attain stability under direct voltage at high regulation, in contrast to second-order converters. Controllers have been designed to take advantage of these results in order to remove the current sensing stage while still achieving high bandwidth voltage regulation. Research has also been conducted into creating novel DC converters with a lower component size than similar circuits. From this, an improved super-boost converter has been developed that requires lower energy storage on its capacitors and inductors than the traditional boost and fourth-order boost converters, for a given specification of input current and output voltage ripples. Additionally, an inverter system for a fuel cell stack has been developed using double-dual converters in cascade to increase the voltage gain and power handling of the system. Results from tests at different power and voltage levels show that the proposed system also achieves reduced switch voltage stresses and reduced output current ripples. Simulation and experimental results were obtained in order to validate the theoretical analysis. Mathematical models, steady state values and stability conditions were calculated, and prototype designs were developed to corroborate the performance of the converters, control and efficiency.
- Detección de Salmonella typhimurium mediante un inmunosensor basado en microbalanzas de cristal de cuarzo (QCM) inmovilizado con nanopartículas de oro funcionalizadas(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2022-02-28) Ortega Valencia, Jose Erick; Oseguera Peña, Joaquín Esteban; mtyzramirez; Oliva Ramírez, Jacqueline Liszeth; Melo Máximo, Lizbeth; Uribe Lam, Esmeralda; Departamento de Ingeniería y Ciencias; Campus Estado de México; Melo Máximo, Dulce ViridianaDetección de Salmonella typhimurium mediante un biosensor utilizando cristales de cuarzo como material piezoeléctrico basado en la modificación superficial con nanopartículas de oro previamente funcionalizadas e inmobilizadas con cisteinatos y anticuerpos de Salmonella typhimurium.
- Enhancing physical properties of aluminum 6061 by electrodeposition of multi-walled carbon nanotubes(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2021-02-08) Rodríguez Salinas, Juan José; RODRIGUEZ SALINAS, JUAN JOSE; 37308; Elias Zuñiga, Alex; qro /|bqrotbecerra; Cardenas Aleman, Eduardo; Olvera Trejo, Daniel; Palacios, Luis Manuel; School of Engineering and Sciences; Campus Monterrey; Martinez Romero, OscarThe development of a new generation of material has been of great interest in the ever-demanding industrial applications. This new generation of materials is required to be lighter, economical, and machinable with increased mechanical, electrical, thermal, and tribological properties. This work proposes the use of Nanotechnology as a development tool to overcome these demands. This work proposed the use of carbon nanotubes as the medium to enhance the electrical and thermal properties of the aluminum by the deposition of a nano coating of carbon nanotubes over the surface of the aluminum by an electrochemical process that modify the surface of the aluminum creating a thin film that enhances its physical properties. The samples produced by electrodeposition show an increment in electrical, thermal, and tribological properties. This results produced a new generation of nano-enhanced commercial aluminum that could be used for electrical applications. Finally, these results guide the first steps towards a scale-up EDP for industrial applications.
- Bioresorbable materials and additive manufacturing process for medical implants(Instituto Tecnológico y de Estudios Superiores de Monterrey) Tejeda Alejandre, Raquel; 368866; 368866; 368866; 368866; 368866; 368866; 368866; 368866; 368866; 368866; Rodríguez González, Ciro A.; Escuela de Ingeniería y Ciencias; Campus Monterrey; Dean, DavidThe application of additive manufacturing technologies in tissue engineering has been growing in recent years. Among different technology options, 3D printing is becoming popular due to the ability to directly print scaffolds with designed shape and has great potential like manufacturing method in the production of scaffolds for tissue engineering. Applications of additive manufacturing in regenerative medicine and tissue engineering are restricted for the available materials for each technology. A great part of the research has focused on the development of new materials to be used to create complex geometries, culture different kind of cells from a different types of tissues and applications. In this work, recent developed additive manufacturing techniques and biomaterials for vascular and bone tissue are studied. The objective of tissue engineering is to produce functional and viable structures and multiple biomaterials and fabrication methods need to be researched. To achieve this purpose, the fabrication of bifurcated vascular grafts using the combination of electrospinning and 3D printing, and the characterization of a new biomaterial for bone regeneration applications, were explored. Polycaprolactone (PCL) was used to electrospun a mandrel obtaining a bifurcated construct that was morphological and mechanical characterized. For bone regeneration applications, a new resorbable biomaterial was investigated. Process parameters and materials properties, such as separation force and green strength were studied in order to probe the printability of this material, compositional changes, or defects during the 3D printing process, of porous structures using Continuous Digital Light Processing (cDLP) and Isosorbide.
- Implementation of a fuzzy logic based system for the generation of a risk indicator in a DC electric arc furnace(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2019-05-20) Erives Sánchez, Omar; ERIVES SANCHEZ, OMAR;;892453; Micheloud Vernackt, Osvaldo Miguel; School of Engineering and Sciences; Campus Monterrey
- Calibración de un Modelo Estocástico del Comportamiento de los Precios del Petróleo(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2007-01-11) Dávila Pérez, Javier; NUÑEZ MORA, JOSE ANTONIO; 26459; Núñez Mora, José Antonio; Armenta Fraire, Leticia; Ruiz Porras, AntonioSe propone un modelo de tres factores para calibrar la estructura de plazos de los precios futuros del petróleo crudo. Los parámetros del modelo se estiman mediante el uso del filtro de Kalman en un escenario con paneles de datos incompletos. Se aplica el
- Mathematical models of some evolutionary systems under the influence of stochastic factors(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2007-01-12) Rodríguez Said, Roberto David.; RODRIGUEZ SAID, ROBERTO DAVID;;2213094; Rodríguez Dagnino, Ramón Martín.; A. Pogorui, Anatoly; Campuzano Treviño, Gabriel.; Rodríguez Cruz, José Ramón.; Mex Perera, Jorge Carlos.As it is known, the problem of availability of information is normally addressed using a buffer. Most of the times it is required that the effectiveness or reliability of the system is calculated to optimize the amount of stored information according to the customers random requests and to the amount of incoming information from the supply line. In this thesis, we consider the case of single buffer connected to any number of customers with bursty demands.
- Recovery and Characterization of Proteins from Plants: Aqueous Two-Phase System-Based Bioengineering Strategies(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2007-01-12) Aguilar Jiménez, Oscar Alejandro; AGUILAR JIMENEZ, OSCAR ALEJANDRO; 278440; Marco A. Rito-Palomares; Charles E. Glastz; Blanca H. Lapizco Encinas; Rocío I. Díaz de la Garza; Manuel I. Zertuche GuerraThe main drawback for general acceptance of plants as economically viable production systems is the lack of efficient initial concentration and separation procedures. In order to facilitate the general acceptance of plants as bioreactors, the establishmen
- Adquisición de Comportamientos Grupales en un Dominio de Agentes de FÚtbol Utilizando un Mecanismo de Toma de Decisiones Distribuido y Aprendizaje por Refuerzo(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2006-01-03) Junco Rey, María de los Ángeles; Ramos Quintana, Fernando; 25602; Ramos Quintana, Fernando; Dr. Luis Enrique Succar Sucar; Dr. Ramón Brena Pinero; Dr. Carlos Eduardo Mariano RomeroEn un sistema multiagente la coordinación de las actividades de los diferentes participantes es una tarea difícil de lograr, especialmente si los agentes interactÚan en un medio dinámico. Tradicionalmente, la toma de decisiones se realiza de una forma cen
- Analysis, Architecture, and Fusion Methods for Vehicle Automation(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2007-05-01) Albores Borja, Carlos; ALBORES BORJA, CARLOS; 263918; Dr. José Luis Gordillo Moscoso; Dr. Josep Maria Mirats Tur; Dr. Rogelio Soto Rodríguez; Dr. Ricardo Ambrocio Ramírez Mendoza; Dr. Carlos Fernando Pfeiffer CelayaAutonomous Vehicles (AVs) are automated vehicles to carry out a specific task, without direct human intervention. AVs are mobile robotic applications that have generated great interest in recent years due to their capacity to perform repetitive tasks in r