Now showing items 41-60 of 78

    • Inclusión de bioseñales como funciones de peso en un sistema de control retroalimentado para manejo de glucemia en Diabetes Mellitus Tipo 1 

      Quiroz Compeán, Griselda (2008)
      "En esta tesis, se aborda el diseño de controladores de glucosa para su aplicación en la terapia llamada páncreas endocrino artificial en Diabetes Mellitus Tipo 1. La aportación principal es el diseño de controladores que ...
    • Lie algebra on synchronization of different systems: a generalized function for Hodgkin-Huxley neurons 

      Barajas Ramírez, Juan Gonzalo; Femat Flores, Alejandro Ricardo; Solís Perales, Gualberto Celestino (2007)
      "In this contribution two results are taken: (1) The synchronization of noiseless Hodgkin- Huxley (HH) neurons is possible from robust feedback based on Lie algebra approaches and (2) the fact that, from Lie algebra of ...
    • Make a PI controller on an 8-bit micro 

      Hernández Rosales, Crescencio; Femat Flores, Alejandro Ricardo; Quiroz Compeán, Griselda (2006-01)
      "This article shows you how to implement a classical PI (proportional-integral) controller on a simple 8-bit microcontroller. To implement the PI controller, we developed specific libraries that make it possible for the ...
    • Mapas escalares de un convertidor elevador en modo corriente 

      Yáñez Campos, Sergio Constantino; Femat Flores, Alejandro Ricardo; Leyva Ramos, Jesús (2003)
      "En esta contribución se analiza una clase de mapa escalar obtenido a partir de las formas de onda del convertidor elevador controlado en modo corriente pico sin rampa estabilizadora. Se establecen condiciones necesarias ...
    • Métodos matemáticos de factorización y una aproximación por retroalimentación para sistemas biológicos 

      Cornejo Pérez, Octavio (2005)
      "Esta tesis presenta los resultados originales que he obtenido durante los tres años de periodo doctoral en la División de Matemáticas Aplicadas y Sistemas Computacionales (DMASC) del Instituto Potosino de Investigación ...
    • Modelado del flujo de fluidos en una bomba para suministro de medicamento. 

      Hernández Rosales, Crescencio (2008)
      "Esta tesis trata sobre el modelado de la mecánica de fluidos en un Actuador/Dosificador (AD) que formara parte de una bomba automática para suministró de medicamento. La geometría del AD propuesto se basa en tubos de ...
    • Modelo Euler – Lagrange de marcha humana: simulaciones numéricas y experimentos 

      Bravo Vidales, Angela Patricia (2016-03)
      "El cuerpo humano es uno de los sistemas más increíbles que existen y que ha sido de gran interés para muchos investigadores de varias áreas del conocimiento. En particular aquellas enfocadas en la locomoción humana. En ...
    • Monitoring lipase/esterase activity by stopped flow in a sequential injection analysis system using p-nitrophenyl butyrate 

      Pliego Sandoval, Jorge Enrique; Mateos Díaz, Juan Carlos; Rodríguez González, Jorge Alberto; Valero, Francisco; Baeza Labat, Maria del Mar; Femat Flores, Alejandro Ricardo; Camacho Ruíz, Rosa María; Sandoval Fabián, Georgina Coral; Herrera López, Enrique (MDPI, 2015)
      "Lipases and esterases are biocatalysts used at the laboratory and industrial level. To obtain the maximum yield in a bioprocess, it is important to measure key variables, such as enzymatic activity. The conventional method ...
    • Multiscroll attractors by switching systems 

      Campos Cantón, Eric; Barajas Ramírez, Juan Gonzalo; Solís Perales, Gualberto Celestino; Femat Flores, Alejandro Ricardo (2010)
      "In this paper, we present a class of three-dimensional dynamical systems having multiscrolls which we call unstable dissipative systems (UDSs). The UDSs are dissipative in one of its components but unstable in the other ...
    • Multivalued synchronization by Poincar coupling 

      Ontañón García Pimentel, Luis Javier; Campos Cantón, Eric; Femat Flores, Alejandro Ricardo; Campos Cantón, Isaac; Bonilla Marín, Marcial (2013)
      "This work presents multivalued chaotic synchronization via coupling based on the Poincaré plane. The coupling is carried out by an underdamped signal, triggered every crossing event of the trajectory of the master system ...
    • Nonlinear and robust control strategy based on chemotherapy to minimize the HIV concentration in blood plasma 

      Aguilar López, Ricardo; Gómez Acata, Rigel Valentín; Lara Cisneros, Gerardo; Femat Flores, Alejandro Ricardo (2016)
      "A nonlinear PI-type control strategy is designed in order to minimize the HIV concentration in blood plasma, via medical drug injection, under the framework of bounded uncertain input disturbances. For control design it ...
    • On Brusselator and Oregonator as chemical reaction networks: a graph approach 

      Méndez González, José Martín; Femat Flores, Alejandro Ricardo (2009)
      "This paper shows graph similarities between Brusselator and Oregonator reaction mechanisms, using the jacobian matrix in convex coordinates as an adjacency matrix which defines a weighted directed pseudograph. A linear ...
    • On friction effects as a mechanism to induce complex dynamical behavior in earthquakes 

      Castellanos RodrÍguez, Valentina; Campos Cantón, Eric; Femat Flores, Alejandro Ricardo (2012)
      "In this paper we analyze a nonlinear dynamical system that describes the kinetic mechanism between tectonic plates on the crust´s earth undergoing stick slip movement. The analysis includes friction effects and an empirical ...
    • On suitable observables for the chaotic Peroxidase-Oxidase autocatalytic reaction 

      Méndez González, José Martín; Femat Flores, Alejandro Ricardo (International Federation of Automatic Control, 2018)
      "Neurodegenerative diseases such as Alzheimer’s and Parkinson present oxidative damage of neurocytes generally caused by reactive oxygen species (ROS). Heme peroxidases consume and produce ROS thus serving as suppresors ...
    • On the dynamic behaviour of a class of bioreactor with non-conventional yield coefficient form 

      Gómez Acata, Rigel Valentín; Lara Cisneros, Gerardo; Femat Flores, Alejandro Ricardo; Aguilar López, Ricardo (2015-04)
      "The goal of this work is to analyze by numerical bifurcation the dynamical behavior of a class of continuous bioreactor used to hydrolyze cellulose using Cellulomonas cellulans, talcing into account the effect of mo deling ...
    • On the emergence of chaos in dynamical networks 

      Barajas Ramírez, Juan Gonzalo; Femat Flores, Alejandro Ricardo (2012)
      "We investigate how changes of specific topological features result on transitions among different bounded behaviours in dynamical networks. In particular, we focus on networks with identical dynamical systems, synchronised ...
    • On the transitions between dynamical behaviors for small-world and scale-free networks 

      Barajas Ramírez, Juan Gonzalo; Femat Flores, Alejandro Ricardo (2008)
      "The effect of network topology on the transition between dynamical behaviors is investigated for two networks: the small-world and scale-free models. In our analysis, we consider a network of identical dynamical systems ...
    • On-line estimation of VFA concentration in anaerobic digestion via methane outflow rate measurements 

      Lara Cisneros, Gerardo; Aguilar López, Ricardo; Dochain, Denis; Femat Flores, Alejandro Ricardo (Elsevier, 2016-11)
      "This paper deals with the design of a robust nonlinear observer as a software sensor to achieve the on-line estimation of the concentration of Volatile Fatty Acids (VFA) in a class of continuous anaerobic digesters (AD). ...
    • Oportunidades para modelar y controlar enfermedades que afecta al ganado bovino en México 

      Herrera López, Enrique; Estrada Chávez, Ciro; Díaz Montaño, Dulce María; Huitron Nieto, Gabriela; Femat Flores, Alejandro Ricardo (2008)
      "El ganado bovino en México padece de enfermedades infecciosas tales como la tuberculosis o brucelosis. Estas enfermedades disminuyen la población bovina y la producción de leche hasta en un 30% provocando pérdidas millonarias ...
    • Pattern formation by two precipitated species during solvent evaporation 

      Lara Cisneros, Gerardo; Loredo Osti, Abigail; Femat Flores, Alejandro Ricardo; Pérez, Elias (2008)
      "We investigate the pattern formation produced by precipitated species during solvent evaporation through the numerical solution of a set of partial differential equations that account for the mechanisms of evaporation, ...