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Unidad Académica de Ciencia y Tecnología de la Luz y la Materia (LUMAT): Envíos recientes

  • Metalentes concentradoras y el método de cuerdas 
    Galván, Thaire Valeria (Universidad Autónoma de Zacatecas, 2023-10)
    Muchos de los dispositivos ópticos actuales tienen un sistema de iluminación, el cual debido a que se compone por diferentes tipos de lentes ordenados, suelen ser voluminosos y pesados. La óptica sin imágenes (NIO) de las ...
  • Simulación de una metalente TIR para concentración de luz 
    Dávila Arévalo, Edgar (Universidad Autónoma de Zacatecas, 2024-03)
    En la actualidad, las metalentes juegan un papel muy importante en el desarrollo de las nuevas y futuras tecnologías, debido a la versatilidad que tiene por su diminuto tamaño en comparación con los sistemas ópticos ...
  • Implementation of the Kalman Filter for a Geostatistical Bivariate Spatiotemporal Estimation of Hydraulic Conductivity in Aquifers 
    Junez Ferreira, Hugo Enrique; González Trinidad, Julian; Junez Ferreira, Carlos Alberto; Robles Rovelo, Cruz Octavio; Herrera, G.S.; Olmos Trujillo, Edith; Bautista Capetillo, Carlos Francisco; Contreras Rodríguez, Ada Rebeca; Pacheco Guerrero, Anuard Isaac (MDPI, 2020-11)
    The estimation of the hydraulic parameters of an aquifer such as the hydraulic conductivity is somehow complicated due to its heterogeneity, on the other hand field and laboratory tests are both time consuming and costly. ...
  • Estimation of the Evapotranspiration and Crop Coefficients of Bell Pepper Using a Removable Weighing Lysimeter: A Case Study in the Southeast of Spain 
    Ávila Dávila, Laura; Molina Martínez, José Miguel; Bautista Capetillo, Carlos Francisco; Soler Méndez, Manuel; Robles Rovelo, Cruz Ocrtavio; Junez Ferreira, Hugo Enrique; González Trinidad, Julian (MDPI, 2021-01-14)
    Water use efficiency is essential in semiarid regions of Spain, and it can be achieved through a precise knowledge of the real crop water requirements (CWR). The Food and Agriculture Organization of the United Nations (FAO) ...
  • A Compact Weighing Lysimeter to Estimate the Water Infiltration Rate in Agricultural Soils 
    Ávila Dávila, Laura; Soler Méndez, Manuel; Bautista Capetillo, Carlos Francisco; González Trinidad, Julian; Junez Ferreira, Hugo Enrique; Robles Rovelo, Cruz Octavio; Molina Martínez, José Miguel (MDPI, 2021-01)
    Infiltration estimation is made by tests such as concentric cylinders, which are prone to errors, such as the lateral movement under the ring. Several possibilities have been developed over the last decades to compensate ...
  • Reporte de datos históricos de clima en la zona de estudio 
    Robles Rovelo, Cruz Octavio (Universidad Autónoma de Zacatecas, 2021-12-09)
    En el documento de este enlace, se muestran las variables climáticas históricas de la zona de estudio, mismas que servirán para análisis y comparación con los datos obtenidos en campo.
  • Assessing low-pressure solid-set sprinkler irrigation in maize 
    Robles Rovelo, Cruz Octavio; Playan, Enrique; Cavero, José; Zapata, Nery (Elsevier, 2017-09)
    Water and energy are limited and expensive resources. Conserving water and energy is a requirement to ensure the viability of modern pressurized irrigation systems. The objective of this research was to analyze the ...
  • A particle tracking velocimetry technique for drop characterization in agricultural sprinklers 
    Bautista Capetillo, Carlos; Robles Rovelo, Cruz Octavio; Salinas, Humberto; Playan, Enrique (Springer, 2014-06)
    A variety of techniques have been proposed in the literature for sprinkler drop characterization. An optical particle tracking velocimetry (PTV) technique is proposed in this paper to determine drop velocity, diameter and ...
  • Discharge Coefficient Analysis for Triangular Sharp-Crested Weirs Using Low-Speed Photographic Technique 
    Bautista Capetillo, Carlos; Robles Rovelo, Cruz Octavio; Júnez Ferreira, Hugo Enrique; Playan, Enrique (ASCE, 2014)
    Abstract Triangular weirs are commonly used to measure discharge in open channel flow, representing an inexpensive, reliable methodology to monitor water allocation. In this work, a low-speed photographic technique was ...
  • Caracterización geométrica y cinemática de un chorro pulverizado empleando la técnica óptica PTV 
    Salinas Tapia, HUmberto; Robles Rovelo, Cruz Octavio; Chávez Carlos, Dagoberto; Bautista Capetillo, Carlos Francisco (Instituto Mexicano de Tecnología del Agua, 2014-05)
    Los fenómenos naturales o inducidos que involucran el movimiento de gotas motivan análisis para determinar aspectos como la pérdida de suelo por erosión o los cambios que pudieran ocurrir en la tasa de infiltración ...
  • Special features of radio pulse spectral density analysis 
    Chubykalo, Andrew; Espinoza Garrido, Amado Augusto; Kuligin, Victor (Universidad Autónoma del Estado de México, 2020-10-15)
    En los libros de texto se describe el análisis del espectro de la secuencia periódica de pulsos de radio. Sin embargo, si éste se aplica a pulsos de radio cortos con un periodo largo entre ellos, se producen grandes errores. ...
  • About non-radiation of a charge moving with acceleration and “free” electromagnetic field 
    Chubykalo, Andrew; Espinoza, Augusto (International Journal of Physics and Applications, 2020-11-16)
    In this brief note we discuss some ambiguities in the description of the process of radiation of an accelerated charge and in the description of the so-called “free” electromagnetic (electric) field.
  • Dark matter, dark energy and relates topics in theoretical physics 
    Artekha, Sergey; Chubykalo, Andrew; Espinoza, Augusto; Kuligin, Victor (Hadronic Press, 2020-09-15)
    The work is devoted to a detailed analysis of the fundamentals of general relativity and related theories and hypotheses. The basic experiments underlying the general theory of relativity are critically analysed.
  • Stellar energy loss rates beyond the standard model 
    Llamas-Bugarin, Alejandra; Gutierrez-Rodriguez, Alejandro; Gonzalez-Sanchez, Alejandro; Hernandez-Ruiz, María de los Angeles; Espinoza, Augusto; Chubykalo, Andrew (Springer, 2020-06-08)
    It is known that the dipolemoments of the neutrino lead to important astrophysical and cosmological effects. In this regard, within the context of a U(1)B−L model, we develop and present novel analytical formulas to assess ...
  • Post-Newtonian limit: second-order Jefimenko equations 
    Pérez Carlos, David Antonio; Espinoza Garrido, Amado Augusto; Chubykalo, Andrew (Springer, 2020-07-23)
    The purpose of this paper is to get second-order gravitational equations, a correction made to Jefimenko’s linear gravitational equations. These linear equations were first proposed by Oliver Heaviside in [1], making ...
  • Tailoring the transmission and absorption spectra in a graphene-dielectric multilayer system for Lorentzian profile in the chemical potential 
    Madrigal Melchor, Jesús; Sánchez Arellano, Arsenio; Pérez Huerta, José Samuel; Ariza Flores, David; Sustaita Torres, Ireri Aydée (Elsevier, 2019-04-16)
    En este trabajo, nosotros mostramos como modular los espectros de transmisión, reflexión y absorción de una estructura multicapa dieléctrico-grafeno, adaptando el perfil del potencial químico de las láminas de grafeno, a ...
  • Optical Properties of Dielectric-Graphene Left Hand Material Structure 
    Madrigal Melchor, Jesús; Hinojosa Domínguez, Robrerto; Pérez Huerta, José Samuel; Ariza Flores, David; Sustaita Torres, Ireri Aydée (CambridgeMaterials Research Society, 2019-11-29)
    Son bien conocidas las extraordinarias propiedades ópticas tanto del grafeno como de los metamateriales izquierdos (LHM), para los cuales estudiamos sus propiedades ópticas en sistemas multicapas fabricados por ...
  • Enhancement of Fano-resonance response in bilayer graphene single and double barriers induced by bandgap opening 
    Briones Torres, José Alberto; Pérez Álvarez, Rolando; Pernas Salomón, René; Rodríguez Vargas, Isaac (Elsevier, 2020-05-10)
    Fano resonances in bilayer graphene arise due to the coupling between extended and discrete electrons states, and represent an exotic phenomenon in graphene akin to Klein and anti-Klein tunneling, atomic collapse and ...
  • Pseudospin-dependent Zitterbewegung in monolayer graphene 
    Serna, Eduardo; Rodríguez Vargas, Isaac; Pérez Álvarez, Rolando; Diago Cisneros, Leovildo (American Institute of Physics, 2019-05-23)
    We propose a spintronic device based on a narrow nanoribbon patterned from a monolayer graphene (MLG) sheet, embedded between a film of hexagonal boron nitride and a SiO2 substrate, all comprised under a three top-gated ...
  • Controlling the optical absorption properties of d-FETs by means of contact voltage and hydrostatic pressure effects 
    Oubram, Outmane; Navarro, Oracio; Rodríguez-Vargas, Isaac; Gaggero-Sager, Luis Manuel; Noverolas, Humberto G. (Elsevier, 2019-03-15)
    The effects of contact voltage and hydrostatic pressure on subband structure and optical transitions in GaAs delta-Field Effect Transistor (δ-FET) are theoretically studied. The electronic structure of δ-FET under hydrostatic ...

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