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Gianina Huayna, Antonio Laura, Rossibel Churata, Luis Lazo, Rivalino Guzmán, Pierre G. Ramos and Juan M. Rodriguez
In the present work, a TiO2/zeolite photocatalyst was synthesized by dispersing TiO2 nanoparticles obtained through the sol-gel method onto the surface of natural zeolite derived from ignimbrite residue. The zeolite was obtained from an ignimbrite rubble...
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Manolo Rodríguez-Cervantes, Carlos Eduardo Zavala-Gómez, Karla Hernández-Caracheo, Juan Campos-Guillén, Eloy Rodríguez-de León, Aldo Amaro-Reyes, José Alberto Rodríguez-Morales, Sandra Neli Jiménez-García, Rodolfo Figueroa-Brito, David Osvaldo Salinas-Sánchez, Francisco Javier Flores-Gallardo and Miguel Angel Ramos-López
Spodoptera frugiperda is the main pest of maize. One of the alternatives proposed for its control is the implementation of products of botanical origin, such as those derived from Ricinus communis. In this work, the insecticidal and insectistatic activit...
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Gustavo E. Ramos-Alcaraz, Miguel A. Alonso-Arévalo and Juan M. Nuñez-Alfonso
Accurate attitude determination is crucial for satellites and spacecraft. Among attitude determination devices, star sensors are the most accurate. Solving the lost-in-space problem is the most critical function of the star sensor. Our research introduce...
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María del Prado Garrido, Juan Francisco Rodriguez, Maria Jesús Ramos, Manuel Carmona, Francisco Javier Redondo Calvo and Ana Maria Borreguero
The scale-up and the economic feasibility of the synthesis of St-MMA-GMA-PEGMA particles biofunctionalized with HSA were studied. First, the geometrical similarity of laboratory and pilot plant reactors was checked to develop the scale up of the process ...
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Adolfo R. Lopez, Oscar A. López-Núñez, Ricardo Pérez-Zúñiga, Jair Gómez Radilla, Mario Martínez-García, Maria A. López-Osorio, Gerardo Ortiz-Torres, Mayra G. Mena-Enriquez, Moises Ramos-Martinez, Juan Carlos Mixteco-Sánchez, Carlos Alberto Torres-Cantero, Felipe D. J. Sorcia-Vázquez and Jesse Y. Rumbo-Morales
This paper shows the implementation of the Moth?Flame Optimization algorithm in a Cascade-H multilevel inverter with five and seven levels to determine the optimal switching sequence of the inverter?s semiconductor devices. The algorithm was coded in Mat...
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Ana Isabel Sevillano-Castaño, Renata Peroy-Badal, Rodrigo Torres-Castro, Ana María Cañuelo-Márquez, Manuel Rozalén-Bustín, Ángel Modrego-Navarro, Luis De Sousa-De Sousa, Juan José Ramos-Álvarez, José Luis Maté-Muñoz and Pablo García-Fernández
The COVID-19 is a multiorgan disease that appeared in December 2019 in the Chinese province of Wuhan. It produces various clinical manifestations, although it mainly affects the respiratory system. Given these potentially detrimental long-term consequenc...
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Juan J. Cubillas, María I. Ramos, Juan M. Jurado and Francisco R. Feito
Predictive systems are a crucial tool in management and decision-making in any productive sector. In the case of agriculture, it is especially interesting to have advance information on the profitability of a farm. In this sense, depending on the time of...
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Alvaro López-Ramos, Juan Pablo Medrano-Barboza, Luisa Martínez-Acosta, Guillermo J. Acuña, John Freddy Remolina López and Alvaro Alberto López-Lambraño
The geomorphology of a basin makes it possible for us to understand its hydrological pattern. Accordingly, satellite-based remote sensing and geo-information technologies have proven to be effective tools in the morphology analysis at the basin level. Co...
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Maria Camila Bermeo-Giraldo, Alejandro Valencia-Arias, Javier D. Ramos de Rosas, Martha Benjumea-Arias and Juan Amilcar Villanueva Calderón
This study aims to identify the factors that influence the use of digital marketing by SMEs in Medellín during COVID-19, proposing five factors that influence the use of these digital tools by 120 SMEs in Medellín, Colombia. The research was carried out ...
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Ena Gámez-Balmaceda, Alvaro López-Ramos, Luisa Martínez-Acosta, Juan Pablo Medrano-Barboza, John Freddy Remolina López, Georges Seingier, Luis Walter Daesslé and Alvaro Alberto López-Lambraño
Intensity?Duration?Frequency (IDF) curves describe the relationship between rainfall intensity, rainfall duration, and return period. They are commonly used in the design, planning and operation of hydrologic, hydraulic, and water resource systems. Consi...
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