Volumen 28 - Número 1. Abril 2021
 
CONTENIDO
Manuel Jiménez-Bahri (Universidad de Carabobo, Valencia, Venezuela), Ángel Almarza-Morales (Universidad de Carabobo, Valencia, Venezuela)
 
Fractal dynamic for the particles PM2,5 in Mexico City
Mario Aguilar-Fernández (Instituto Politécnico Nacional. Ciudad de México, México), Sergio Barrientos-Ramírez (Universidad Anáhuac México. Huixquilucan, Estado de México, México), Arturo Merlín-Rodríguez (Instituto Politécnico Nacional. Ciudad de México, México), Brenda García-Jarquín (Instituto Politécnico Nacional–ESIME-ZACATENCO. Ciudad de México, México), Víctor M. López-Sánchez (Universidad Anáhuac México. Huixquilucan, Estado de México, México)
   
 
Decrease in the activity of irradiated graphite and liquid radioactive waste
 
Valerii V. Krymsky (South Ural State University. Chelyabinsk, Russian Federation), Natalya V. Plotnikova (South Ural State University. Chelyabinsk, Russian Federation)
   
 
Numerical modeling of a debris flow associated with a dam break in the Quillcay sub basin, Ancash, Peru
 
Abelardo M. Díaz-Salas (Universidad Nacional Santiago Antúnez de Mayolo. Ancash, Perú), Edilberto Guevara-Pérez (Universidad Nacional Agraria La Molina. Lima, Perú), James D. Vidal-Moreno (Universidad Nacional Santiago Antúnez de Mayolo. Ancash, Perú)
   
 
Basics of methodology of creating and developing the class of natural engineering systems in water resources management
 
Vladimir L. Bondarenko (Don State Agrarian University. Rostov-on-Don, Russia), Elguja D. Khetsuriani (Don State Technical University. Rostov-on-Don, Russia), Allaberdy I. Yliasov (Asian branch of the WTL. Moscow, Russia), Elena A. Semenova (North Caucasus Federal University. Pyatigorsk, Russia), Valery N. Azarov (Volgograd State Technical University. Volgograd, Russia)
   
 
Probabilistic model of the relationship between ENSO and the occurrence of agricultural droughts in southern Peru
 
  Juan Cabrera (Universidad Nacional Agraria La Molina. Lima, Perú), Jesús Mejía (Universidad Nacional Agraria La Molina. Lima, Perú), Edilberto Guevara-Pérez (Universidad Nacional Agraria La Molina. Lima, Perú)
   
 
Genesis and geochemistry of the soils of urban landscapes of the Black Sea coast of Russia
 
 
Lalita V. Zakharikhina (Russian Research Institute of Floriculture and Subtropical Crops. Sochi, Russia), Lyudmila S. Malyukova (Russian Research Institute of Floriculture and Subtropical Crops. Sochi, Russia)
   
 
Technogenic geochemical abnormalities in the soils and bottom sediments of Voronezh
 
 
Natalia V. Kaverina (Voronezh State University. Voronezh, Russia), Semen A. Kurolap (Voronezh State University. Voronezh, Russia), Pavel M. Vinogradov (Voronezh State University. Voronezh, Russia), Tatyana V. Dubovitskaya (Voronezh State University. Voronezh, Russia), Natalya N. Nazarenko (Voronezh State Agrarian University named after Emperor Peter the Great. Voronezh, Russia), Roman A. Kondaurovc (Voronezh State University. Voronezh, Russia)
   
 
Developing multilevel statistical models of determining bottom-hole flowing pressure in commercial oil well operations
 
 
Inna N. Ponomareva (Perm National Research Polytechnical University. Perm Krai, Russia), Vladislav Ign. Galkin (Perm National Research Polytechnical University. Perm Krai, Russia), Alexander V. Rastegaev (Perm National Research Polytechnical University. Perm Krai, Russia), Sergey Vl. Galkin (Perm National Research Polytechnical University. Perm Krai, Russia)
   
 
Boron carbide composites produced by self-propagating high-temperature synthesis
 
 
Roza G. Abdulkarimova (Al-Farabi Kazakh National University. Almaty, Kazakhstan), Aizhan J. Seidualiyeva (Al-Farabi Kazakh National University. Almaty, Kazakhstan), Aisulu N. Batkal (Institute of Combustion Problems. Almaty, Kazakhstan), Sanat Tolendiuly (Institute of Combustion Problems. Almaty, Kazakhstan), Sergey M. Fomenko (Institute of Combustion Problems. Almaty, Kazakhstan)
   
 
Tech Note. Embrittlement of duplex stainless steels SAF 2205 y SAF 2507 subjected to artificial aging heat treatments
 
 
Laura Sáenz (Universidad de las Fuerzas Armadas ESPE. Quito, Ecuador), Krishna Aguilera (Universidad de Carabobo, Valencia, Venezuela), Reinaldo Heredia (Universidad de Carabobo, Valencia, Venezuela), Trino Romero (Universidad Central de Venezuela. Distrito Capital, Venezuela), Caterine Donoso (Universidad de las Fuerzas Armadas ESPE. Quito, Ecuador), Marcos Singaña (Universidad de las Fuerzas Armadas ESPE. Quito, Ecuador)
   
 
Design of a 34,5 kV line for backup auxiliary power services of the La Arenosa 765 kV Substation
 
 
Santiago Abreu (Universidad de Carabobo. Valencia, Venezuela), Antonio Otero (Universidad de Carabobo. Valencia, Venezuela), Eva Monagas (Universidad de Carabobo. Valencia, Venezuela), César Rodolfo Ruiz(†) (Universidad de Carabobo. Valencia, Venezuela), Juan C. Ataya (Universidad de Carabobo. Valencia, Venezuela), Yonder Guevara (Universidad de Carabobo. Valencia, Venezuela)
   
 
Neuropathology detector in eeg using higher order statistics and deep learning
 
 
César Seijas (Universidad de Carabobo. Valencia, Venezuela), Sergio Villazana (Universidad de Carabobo. Valencia, Venezuela), Guillermo Montilla (Yttrium-Technology Corp., Panamá, Panamá), Egilda Pérez (Universidad de Carabobo. Valencia, Venezuela), Ricardo Montilla (Yttrium-Technology Corp., Panamá, Panamá)
   
 
Environment descriptor for visually impaired people implemented on Raspberry Pi based on convolutional and recurrent artificial neural networks
 
 
Rafael Chourio (Universidad de Carabobo. Valencia, Venezuela), Wilmer Sanz (Universidad de Carabobo. Valencia, Venezuela)
   
 
Detection of incipient faults of bearings in a generator synchronous using support vector machines (SVMs)
 
 
Aniello Sparano (Universidad de Carabobo. Valencia, Venezuela), Jesús Ramírez (Universidad de Carabobo. Valencia, Venezuela), Ledy Guerra (Universidad de Carabobo. Valencia, Venezuela), Rubén Terán (Universidad de Carabobo. Valencia, Venezuela)
   
 
EEG signal clustering with learned features using deep autoencoder
 
 
Sergio Villazana (Universidad de Carabobo. Valencia, Venezuela), César Seijas (Universidad de Carabobo. Valencia, Venezuela), Guillermo Montilla (Yttrium-Technology Corp., Panamá, Panamá), Egilda Pérez (Universidad de Carabobo. Valencia, Venezuela)
   
 
Model identification and comparative evaluation of PID controller tuning methods for a catalytic regeneration process in Scilab-XCOS
 
 
Gerardo Lanza (Innovent, C.A. Automatización y Controles Industriales. Valencia, Venezuela), Francisco Arteaga-Bravo (Universidad de Carabobo. Valencia, Venezuela)
   
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