Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Juan P Barraza"'
Publikováno v:
Revista Fuentes El Reventón Energético, Vol 19, Iss 2, Pp 7-18 (2021)
El desarrollo de este artículo consiste en la aplicación de una secuencia de análisis para seleccionar las plataformas de producción de hidrocarburos, la cual consta de cuatro criterios que se requiere tener en cuenta al momento de desarrollar un
Externí odkaz:
https://doaj.org/article/ddc1ca98ee6645e385bd6ec91519da31
Autor:
Juan Vicente Barraza de la Paz, Luis Alberto Rodríguez-Picón, Víctor Morales-Rocha, Soledad Vianey Torres-Argüelles
Publikováno v:
Systems, Vol 11, Iss 5, p 218 (2023)
The large amount of information handled by organizations has increased their dependance on information technologies, which has made information security management a complex task. This is mainly because they cover areas such as physical and environme
Externí odkaz:
https://doaj.org/article/1b5d0018b1ae4b1d946510495bd5da1c
Autor:
Karen L. Martínez-Mendoza, Juan Manuel Barraza Burgos, Nilson Marriaga-Cabrales, Fiderman Machuca-Martinez, Mariber Barajas, Manuel Romero
Publikováno v:
Ingeniería e Investigación, Vol 40, Iss 1, Pp 34-44 (2020)
In this work, activated carbons were produced using coal as raw matter from seven Colombian carboniferous zones. Physical activation was performed in two stages: a carbonization stage with Nitrogen at a temperature of 850 °C and a residence time of
Externí odkaz:
https://doaj.org/article/ddac9b392f184727a7a2ba0ce7de68f8
Publikováno v:
Ingeniería e Investigación, Vol 42, Iss 1, Pp e88273-e88273 (2021)
A test-rig closed-loop flotation column was used to observe the effect of diesel oil (collector) and Flomin F-425 (frother) on mass yield and ash content for two Colombian coals: Caypa (northern zone) and Guachinte (southwestern zone). The coal sampl
Externí odkaz:
https://doaj.org/article/8212e2958f104bb194e1326dfef03946
Autor:
Juan P. Barraza, Marvin Whiteley
Publikováno v:
mBio, Vol 12, Iss 2 (2021)
ABSTRACT Pseudomonas aeruginosa and Staphylococcus aureus are two of the most common coinfecting bacteria in human infections, including the cystic fibrosis (CF) lung. There is emerging evidence that coinfection with these microbes enhances disease s
Externí odkaz:
https://doaj.org/article/c723c9a3ae904c9986cbba3791e0ab05
Publikováno v:
Dyna, Vol 84, Iss 203, Pp 143-149 (2017)
This study describes the development and formulation of a novel mathematical model for coal flotation kinetic. The flotation rate was considered as a function of chemical, operating and petrographic parameters for a global flotation order n. The equa
Externí odkaz:
https://doaj.org/article/d9736bc496124b84a5ac6012c06386e8
Publikováno v:
Proceedings of the National Academy of Sciences. 119
A hallmark of microbial ecology is that interactions between members of a community shape community function. This includes microbial communities in human infections, such as chronic wounds, where interactions can result in more severe diseases. Stap
Autor:
Juan Manuel Barraza-Burgos, Edward Andrés García-Saavedra, Deisy Chaves-Sanchez, María Patricia Trujillo-Uribe, Francisco Javier Velasco-Charria, Jaime José Acuña-Polanco
Publikováno v:
Revista Facultad de Ingeniería Universidad de Antioquia, Iss 77, Pp 17-24 (2015)
Las características termogravimétricas y la cinética de la pirolisis de mezclas de carbones se investigaron usando un analizador termogravimétrico con velocidades de calentamiento de 20°C/min desde temperatura ambiente hasta 850°C. Las muestras
Externí odkaz:
https://doaj.org/article/e528643c44cf4386b5ab27ba07be710e
Publikováno v:
Revista Nicolaita de Estudios Económicos, Vol 10, Iss 1 (2017)
El trabajo presenta las principales características del capitalismo contemporáneo: endeudamiento y concentración. Se ha hecho un análisis conceptual de las teorías del valor-trabajo en Ricardo y Marx así como su perfeccionamiento a partir de la
Externí odkaz:
https://doaj.org/article/8be80babf7154ff387c29397565546c5
Autor:
Diana Vargas, Deisy Chaves Sanchez, Maria Patricia Trujillo Uribe, Jorge Luis Piñeres Mendoza, Juan Manuel Barraza Burgos
Publikováno v:
Ingeniería e Investigación, Vol 33, Iss 1, Pp 13-17 (2013)
This work evaluated the char morphology of beneficiated and original coal (without beneficiation) from four Colombian coalmines: Cerrejón (La Guajira), La Jagua (Cesar), Guachinte (Valle del Cauca) and Nechí (Antioquia). Column flotation was used t
Externí odkaz:
https://doaj.org/article/6d61978904154c1ab334cb77d62738b6