Modesto Barrios-Fontalvo, Candelaria Tejada-Tovar, Ángel Villabona-Ortíz, Fidel Castillo-Mercado, Breiner Ramírez-Arenilla,
This paper evaluates the use of cedar tree exudate in chloride penetration and the probability of steel corrosion in reinforced concrete (rc), considering 0.3, 0.5, 0.7, and 0.9 % exudate by cement weight in the mixture at water/cement (w/c) ratios of 0.55 and 0.60. Under these conditions, cylindrical specimens of 4 inches in diameter and 8 inches in height were constructed. The water-sol- uble chloride content of the extracted concrete powder was measured at 0.5, 1.0, and 2.0 cm depth according to ...
Tópico(s): Corrosion Behavior and Inhibition
2020 - Military University Nueva Granada | Ciencia e Ingeniería Neogranadina
Yeimy Liceth Morales, Edwin Mora Nonsoque, Viatcheslav Kafarov, Breiner Cobos, Daniel Romero, E. Castillo, Fernando Ruiz Díaz,
The tools of mathematical modeling and simulation were applied to the first stage of the process of sugar production in an ingenious Colombian. We developed a mathematical model for the steady-state phase in which the main product is obtained as the juice will be diluted to subsequent processes for raw sugar and by-product bagasse which is currently used for the manufacture of paper and fuel in the boilers that powered the steam needed for the process. Was developed to simulate a user-friendly graphical ...
Tópico(s): Sugarcane Cultivation and Processing
2009 - Industrial University of Santander | Revista ION
Jorge Herrera‐Pino, Juancarlos Benedetti-Isaac, Daniela Ripoll-Córdoba, Loida Camargo, Edgard Eliud Castillo-Támara, Breiner Morales-Asencio, Esther Perea‐Castro, Martín Torres Zambrano, Alejandro Ducassou, Yuliana Flórez, María F. Porto, Pascual Ángel Gargiulo, Boris Zurita-Cueva, Nicole Caldichoury, Juan-Carlos Coronado, Cesar Castellanos, Cleto Ramírez-Penso, Norman López,
Abstract Some patients with autism and severe intellectual disability may experience uncontrolled aggression, causing serious injury or harm to others, and the therapeutic ineffectiveness of traditional pharmacological and behavioral treatment may aggravate symptoms. Deep brain stimulation (DBS) has been tested in patients with little evidence in children and adolescents. Therefore, we analyzed the efficacy and safety of DBS in refractory aggression in pediatric subjects with autism (ASD) and severe ...
Tópico(s): Obsessive-Compulsive Spectrum Disorders
2024 - BioMed Central | BMC Pediatrics
Candelaria Tejada-Tovar, Modesto Barrios Fontalvo, Ángel Villabona-Ortíz, Fidel Castillo Mercado, Breiner Ramírez Arenilla,
espanolEn el presente trabajo se evaluo la incidencia del extracto de C. Odorata L. agregado en el agua de mezclado como alternativa para mejorar la resistencia a la compresion del concreto y la manejabilidad de la mezcla, siguiendo las Normas NTC 673 y NTC 396. Para el analisis de la resistencia a la compresion y la manejabilidad de las mezclas de concreto se involucraron dos variables que fueron relaciones agua/cemento de 0.55 y 0.60 y dosificaciones de extracto de cedro por peso de cemento adicionado ...
Tópico(s): Business, Innovation, and Economy
2021 - EIA University | Revista EIA
Candelaria Tejada-Tovar, Modesto Barrios Fontalvo, Ángel Villabona-Ortíz, Fidel Castillo Mercado, Breiner Ramírez Arenilla,
In the present work the incidence of C. odorata L. aggregate extract in the mixing water was evaluated as an alternative to improve the compressive strength of concrete and the workability of the mix, following NTC 673 and NTC 396 standards. For the analysis of compressive strength and workability of concrete mixes two variables were involved which were water/cement ratios of 0.55 and 0.60 and dosages of cedar extract by weight of cement added in the mixing water of 0.0, 0.3, 0. 5, 0.7 and 0.9 %, resulting ...
Tópico(s): Fire effects on concrete materials
2021 - EIA University | Revista EIA