Universidad Autónoma de Zacatecas (México): últimos ingresos

Mostrando ítems 1781-1800 de 3065

    • El financiamiento de la obra y servicios públicos en Zacatecas a finales del siglo XIX 

      Castañeda Martínez, Elia (Universidad Autónoma de Zacatecas, 2018-12)
      A lo largo de la historia, México y otros países han ido transformando su fisonomía urbana. A finales del siglo XIX y principios del XX, estas modificaciones comenzaron a consolidarse y a ser más perceptibles. Fue un momento ...

    • El motor de una ciudad: proceso de configuración urbano automotriz en Zacatecas (1908-1946) 

      Aguilar Carlos, David Francisco (Universidad Autónoma de Zacatecas, 2018-12-19)
      El primero de mayo de 1909 una expedición en auto partió desde Denver, Colorado hasta la ciudad de México. Los individuos que emprendieron el viaje sobre un automóvil Chalmers-Detroit modelo 30, eligieron cruzar la frontera ...

    • Cine y control social. La Censura Institucional en México: el caso de Aguascalientes, 1933-1963 

      Ortiz Bobadilla, Carolina (Universidad Autónoma de Zacatecas, 2018-12)
      Si partimos de que la censura en el cine se inscribe en el proceso de asimilación de una sociedad para recibir, o no, el mensaje del filme, entonces la interpretación que se le ha dado a la historia del cine en México y ...

    • Abasto de ganado mular a los centros mineros Zacatecas-Vetagrande, Sombrerete, Fresnillo y Mazapil, 1765-1810 

      Gómez Murillo, Ana Guillermina (Universidad Autónoma de Zacatecas, 2012-12)
      El objetivo principal de la investigación presentada, fue analizar la producción de ganado mular durante los años 1765-1810, para el abasto a los centros mineros Zacatecas-Vetagrande, Sombrerete, Fresnillo y Mazapil en un ...

    • Estrategias y tácticas militares en la guerra México-Estados Unidos: Una visión a partir del campo de batalla de Sacramento, Chihuahua (1847) 

      Pérez Juárez, Alonso (Universidad Autónoma de Zacatecas, 2018-12)
      El conflicto y la guerra son aspectos que han sido estudiados por diversas disciplinas, pero sobre todo se han abordado particularmente por la historia militar y la arqueología histórica. La primera de ellas presenta un ...

    • El abastecimiento de agua en la ciudad de zacatecas, 1839-1963: Del sistema clásico al moderno 

      Vázquez Díaz, Adauro Javier (Universidad Autónoma de Zacatecas, 2014-12)
      El agua es un elemento natural que resulta indispensable para la vida de los seres humanos. Desde la antigüedad, las diversas culturas han buscado la manera de solucionar el abasto de agua a sus poblaciones mediante diversas ...

    • An Analysis of Audio Features to Develop a Human Activity Recognition Model Using Genetic Algorithms, Random Forests, and Neural Networks 

      Galván Tejada, Carlos Eric; Galván Tejada, Jorge; Celaya Padilla, José María; Delgado Contreras, Juan Rubén; Magallanes Quintanar, Rafael; Martínez Fierro, Margarita de la Luz; Garza Veloz, Idalia; López Hernández, Yamilé; Gamboa Rosales, Hamurabi (Hindawi, 2016-11-23)
      This work presents a human activity recognition (HAR) model based on audio features. The use of sound as an information source for HAR models represents a challenge because sound wave analyses generate very large amounts ...

    • Incorporating Breast Asymmetry Studies into CADx Systems 

      Celaya Padilla, José María; Guzmán Valdivia, César Humberto; Galván Tejada, Jorge Issac; Galván Tejada, Carlos Eric; Gamboa Rosales, Hamurabi; Delgado Contreras, Juan Rubén; Martinez Torteya, Antonio; Olivera Reyna, Roberto; Manjarrez Sánchez, Jorge Roberto; Martínez Ruíz, Francisco Javier; Garza Veloz, Idalia; Martínez Fierro, Margarita de la Luz; Traviño, Victor; Tamez Peña, José Gerardo (IntechOpen, 2017-10-04)
      Breast cancer is one of the global leading causes of death among women, and an early detection is of uttermost importance to reduce mortality rates. Screening mammograms, in which radiologists rely only on their eyesight, ...

    • A neutron spectrum unfolding code based on generalized regression artificial neural networks 

      Martinez Blanco, María del Rosario; Ornelas Vargas, Gerardo; Castañeda Miranda, Celina Lizeth; Solís Sánchez, Luis Octavio; Castañeda Miranda, Rodrígo; Vega Carrillo, Héctor René; Celaya Padilla, José María; Garza Veloz, Idalia; Martínez Fierro, Margarita de la Luz; Ortíz Rodríguez, José Manuel (Elsevier, 2016-04-30)
      The most delicate part of neutron spectrometry, is the unfolding process. The derivation of the spectral information is not simple because the unknown is not given directly as a result of the measurements. Novel methods ...

    • A comparison of back propagation and Generalized Regression Neural Networks performance in neutron spectrometry 

      Martínez Blanco, María del Rosario; Ornelas Vargas, Gerardo; Solís Sánchez, Luis Octavio; Castañeda Miranda, Rodrígo; Vega Carrillo, Héctor René; Celaya Padilla, José María; Garza Veloz, Idalia; Martínez Fierro, Margarita de la Luz; Ortíz Rodríguez, José Manuel (Elsevier, 2016-04-19)
      The process of unfolding the neutron energy spectrum has been subject of research for many years. Monte Carlo, iterative methods, the bayesian theory, the principle of maximum entropy are some of the methods used. The ...

    • Breast Cancer Detection by Means of Artificial Neural Networks 

      Ortíz Rodríguez, José Manuel; Guerrero Méndez, Carlos; Martínez Blanco, María del Rosario; Castro Tapia, Salvador; Moreno Lucio, Mireya; Jaramillo Martínez, Ramón; Solís Sánchez, Luis Octavio; Martínez Fierro, Margarita de la Luz; Garza Veloz, Idalia; Moreira Galván, José Cruz; Barrios García, Jorge Alberto (IntechOpen, 2017-12-20)
      Breast cancer is a fatal disease causing high mortality in women. Constant efforts are being made for creating more efficient techniques for early and accurate diagnosis. Classical methods require oncologists to examine ...

    • Fast flame temperature estimation using a point diffraction interferometer and non-negative least square method 

      De la Rosa Miranda, Enrique; Berriel Valdos, Luis Raúl; González Ramírez, Efrén; Olvera Olvera, Carlos Alberto; Saucedo Anaya, Tonatiuh; Arceo Olague, José Guadalupe; De la Rosa Vargas, José Ismael (Shaker Publishing, 2016-12-01)
      Some of the interferometry methods proposed for flame temperature measurements from its projection could be complex and demand so much computing time. Assuming a circular symmetric and smooth flame temperature distribution, ...

    • Index of Refraction Measurements in Liquid Substances of Full Field Using Holographic Interferometry 

      Guerrero Méndez, Carlos; Saucedo Anaya, Tonatiuh; Araiza Esquivel, María Auxiliadora; De la Rosa Miranda, Enrique; Olvera Olvera, Carlos Alberto (Springer, 2017-12-01)
      We present a novel method based on Digital Holographic Interferometry to detect slight physical variations of refractive index with high sensitivity in liquid substances. The technique is grounded in the measurement of a ...

    • Effects of Colored Light on Growth and Nutritional Composition of Tilapia, and Biofloc as a Food Source 

      Lopez Betancur, Daniela; Moreno, Ivan; Guerrero Méndez, Carlos; Gómez Meléndez, Domingo; Macias P., Manuel de J.; Olvera Olvera, Carlos Alberto (Molecular Diversity Preservation International and Multidisciplinary Digital Publishing, 2020-01-03)
      Light stimulation and biofloc technology can be combined to improve the efficiency and sustainability of tilapia production. A 73-day pilot experiment was conducted to investigate the effect of colored light on growth ...

    • Modeling and Simulation of Temperature and Relative Humidity Inside a Growth Chamber 

      Díaz Flórez, Germán; Mendiola Santibañez, Jorge; Solís Sánchez, Luis Octavio; Gómez Meléndez, Domingo; Terol Villalobos, Ivan; Gutiérrez Bañuelos, Héctor; Araiza Esquivel, María Auxiliadora; Espinoza García, Gustavo; García Escalante, Juan José; Olvera Olvera, Carlos Alberto (Molecular Diversity Preservation International and Multidisciplinary Digital Publishing, 2019-10-24)
      Modeling and simulation of internal variables such as temperature and relative humidity are relevant for designing future climate control systems. In this paper, a mathematical model is proposed to predict the internal ...

    • Real-time measurement of the average temperature profiles in liquid cooling using digital holographic interferometry 

      Guerrero Méndez, Carlos; Saucedo Anaya, Tonatiuh; Araiza Esquivel, María Auxiliadora; Balderas Navarro, Raúl Eduardo; Aranda Espinoza, Said; Lopez Maritnez, Alfonso; Olvera Olvera, Carlos Alberto (Society of Photographic Instrumentation Engineers, 2016-12-01)
      We present an alternative optical method to estimate the temperature during the cooling process of a liquid using digital holographic interferometry (DHI). We make use of phase variations that are linked to variations in ...

    • Measurements of concentration differences between liquid mixtures using digital holographic interferometry 

      Guerrero Méndez, Carlos; Saucedo Anaya, Tonatiuh; Araiza Esquivel, María Auxiliadora; Balderas Navarro, Raúl Eduardo; López Martínez, Alfonso; Olvera Olvera, Carlos Alberto (Polish Academy of Sciences, 2017-03-10)
      We present an alternative method to detect and measure the concentration changes in liquid solutions. The method uses Digital Holographic Interferometry (DHI) and is based on measuring refractive index variations. The first ...

    • Views on sustainability and the willingness to adopt an environmental management system in the Mexican vegetable sector 

      Padilla Bernal, Luz Evelia; Lara Herrera, Alfredo; Vélez Rodríguez, Alberto; Loureiro, Maria (Wageningen Academic Publishers, 2017-12)
      In Mexico, agriculture’s main environmental problems are related to water resources, deforestation and soil erosion. These problems are more acute in arid or semiarid regions such as in the state of Zacatecas. Environmental ...

    • Total cost assessment of greenhouse tomato production in Zacatecas, Mexico 

      Padilla Bernal, Luz Evelia; Lara Herrera, Alfredo; Reyes Rivas, Elivier; González Hernández, José Roberto (International Society for Horticultural Science: ISHS, 2015)
      Agriculture in the state of Zacatecas, Mexico, consumes 77% of the available groundwater. In this region, the main source of water is 34 aquifers, of which 44% are over exploited. Over extraction of the aquifers damages ...

    • Selección de cepas de hongos micorrízicos arbusculares en dos sistemas de producción de chile 

      López Gómez, Bety Fabiola; Alarcón, Alejandro; Quintero Lizaola, Roberto; Lara Herrera, Alfredo (Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, 2015-09)
      La selección de microorganismos nativos de una región para la producción de biofertilizantes, da mayores posibilidades de adaptación y multiplicación de los mismos en el suelo, debido a que, entre éstos, la diversidad ...