Now showing items 1-13 of 13

Análisis próximos y petrografía orgánica del carbón de la formación Los Cuervos en el sector de Chucarima (Chitagá, Norte de Santander) Colombia

Paredes Celi, Jairo Alonso; Romero Rincon, Luis Miguel; De Bedout Ordóñez, Julián David; Bernal Ruiz, Mauricio (Boletín de Ciencias de la TierraColombia, 2019-01-01)

En este estudio se analizaron los macerales y análisis próximos de los carbones de la formación Cuervos perteneciente a la mina La Lomita ubicada en la vereda de San Luís de Chucarima del Municipio de Chitagá (Norte de ...
Artisanal filter with geo-materials: a basic water treatment alternative for human consumption in marginal areas

Martinez Yanez, Daniela; PEDROZA ROJAS, ALVARO ORLANDO; Acevedo Peñaloza, Carlos Humberto (Contemporary Engineering SciencesBulgaria, 2018-11-29)

The article presents the design and development of filters (easy to implement in homes) that have the capacity to eliminate microorganisms and chemical substances; therefore, they act as handmade water purifiers. It ...
Coda waves’ tomography for surficial exploration

Vargas Jimenez, Carlos Alberto; PEDROZA ROJAS, ALVARO ORLANDO; Caneva, Alexander (Revista De La Academia Colombiana De Ciencias Exactas, Físicas Y NaturalesBogotá, Colombia, 2015-04-26)

This work extrapolates the application of coda-waves’ imaging, in order to determine lateral anomalies of attenuation for surficial targets, and providing experimental elements that justify its use in an economic way with ...
Currículo para la formación en investigación, innovación y pensamiento socio-crítico apoyado en TIC

Vergel Ortega, Mawency; Rojas Suárez, Jhan Piero; Bustos Urbano, Víctor Jhoel (Revista Boletín RedipeColombia, 2020-05-01)

La investigación parte de un análisis documental con enfoque cualitativo. Su objetivo es diseñar la tendencia curricular para orientar cursos, módulos y asignaturas de los diferentes programas académicos de la universidad ...
Effect of the mass flow rate on the heat transfer phenomena in a shell and tube heat exchanger

Delgado Ruiz, Leonardo; Acevedo Peñaloza, Carlos Humberto; Valencia Ochoa, Guillermo (International Journal of Applied Engineering ResearchIndia, 2018)

This article presents the development of some case studies on shell and tube heat exchangers using a graphical interface developed in MATLAB®. Through the case studies, the variation in the performance of the equipment ...
Effort and safety factor in the unions of wooden structures used as carbon mine sustainability, mine case Baseli, Colombia

Acevedo Peñaloza, Carlos Humberto; Villamizar Osorio, Indira; Castro Duque, Yesid (Contemporary Engineering SciencesBulgaria, 2018-08-30)

The research has been dedicated to the study of the calculation of the stresses and design conditions given by the safety factor of operation of the structural members of the mines that use wood as their main support ...
La ética en la formación del ingeniero de minas: representaciones sociales de actores educativos

PÉREZ GÓMEZ, RAIMUNDO ALONSO; Aloiso, Audin; Hernández Suárez, César Augusto (TecnuraBogotá, Colombia, 2015-04-01)

El presente artículo muestra los resultados de una investigación cualitativa que buscó comprender las representaciones sociales de docentes y estudiantes sobre la ética en una institución de educación superior en Cúcuta, ...
Factors associated with capacities development in learning physic associate on numerical systems and Hamming code

Bustos Urbano, Víctor Jhoel ; Vergel Ortega, Mawency; Rojas Suárez, Jhan Piero (Journal of Physics: Conference SeriesReino Unido, 2020-11-05)

the research uses mixed, participatory action research tools within qualitative research, and factor analysis from the positivist approach; identifies and analyses factors associated with problem solving in capacity ...
Heat transfer generated in an underground mining environment

Castro Duque, Yesid; GOMEZ HERNANDEZ, JOSE LUIS ; Acevedo Peñaloza, Carlos Humberto (Contemporary Engineering SciencesBulgaria, 2018-10-18)

The article presents the results of the heat transfer analysis that is generated in an underground environment, specifically in coal mines. The objective is to observe the variability of the results, comparing mines with ...
Implementación de la prueba de tetrazolio en las semillas de Raphanus sativus L

SALAZAR MERCADO, SEIR ANTONIO; Quintero Caleño, Jesús David; Bustos Urbano, Víctor Jhoel (Revista Facultad de Ciencias BásicasColombia, 2020-08-14)

El Rábano (Raphanus sativus) es una especie de gran importancia por sus propiedades nutricionales, el alto porcentaje de aceite en sus semillas y la gran cantidad de metabolitos aprovechables. La producción de este cultivo ...
Modelo de quíntuple hélice en la generación de ejes estratégicos durante y postpandemia 2020

Vergel Ortega, Mawency; Vega Angarita, Olga Marina; Bustos Urbano, Víctor Jhoel (Revista Boletín RedipeColombia, 2020-09-01)

La investigación tiene como propósito validar el modelo de quíntuple hélice identificando ejes estratégicos como factores que influyen la formación de los estudiantes de la universidad Francisco de Paula Santander-Cúcuta-Colombia, ...
Thermodynamic study of a supercritical carbon dioxide Brayton cycle based on main compression intercooling configuration

Orjuela Abril, Martha Sofia ; Bustos Urbano, Víctor Jhoel ; PABON LEON, JHON ANTUNY (Journal of Physics: Conference SeriesReino Unido, 2021-06-09)

This study presents detailed thermodynamic modeling of a supercritical Brayton cycle operating with carbon dioxide as a working fluid for electric power generation. The study incorporates a main compression intercooling ...
Use of Bézier curves in the design of the displacement law of the cam-follower mechanism: Von Mises effective Stress

Acevedo Peñaloza, Carlos Humberto; Ramón Ramón, Sergio Andrés; Bustos Urbano, Víctor Jhoel (Revista UIS IngenieríasColombia, 2020-07-01)

Designing cams by Bézier Curves has become increasingly common, since the mathematical development of this method is less complex. Bezier curves are Bernstein-based polynomials under a unitary domain, and in that sense, ...

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Análisis próximos y petrografía orgánica del carbón de la formación Los Cuervos en el sector de Chucarima (Chitagá, Norte de Santander) Colombia
...
Paredes Celi, Jairo Alonso | 2019-01-01

En este estudio se analizaron los macerales y análisis próximos de los carbones de la formación Cuervos perteneciente a la mina La Lomita ubicada en la vereda de San Luís de Chucarima del Municipio de Chitagá (Norte de Santander), la cual está localizada en la cuenca del Catatumbo. Inicialmente, se analizaron las muestras para determinar su poder calorífico, contenido de humedad, cenizas, carbono fijo, azufre y propiedades coquizables. Dando como resultado una muy buena calidad del carbón principalmente por los bajos contenidos de azufre (0.59% en base seca según la normal ASTM D4239-14), con índice de hinchamiento libre de 5.0 secado al aire según la norma ASTM-720M15, lo que le da un fuerte carácter aglomerante haciéndolo un carbón coquizable. Además, a partir del análisis petrográfico, inicialmente se realizó un resumen de las nomenclaturas y características visuales de todos los macerales y después fue posible analizar las muestras obtenidas en el sector. En el cuál, se observó un predominio de la vitrinita haciendo este un carbón vítrico altamente compuesto por kerógeno tipo III presente en cuatro mantos de aproximadamente 30cm de espesor en la zona de estudio.

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Artisanal filter with geo-materials: a basic water treatment alternative for human consumption in marginal areas
...
Martinez Yanez, Daniela | 2018-11-29

The article presents the design and development of filters (easy to implement in homes) that have the capacity to eliminate microorganisms and chemical substances; therefore, they act as handmade water purifiers. It constitutes a reasonable alternative solution to the problem of contaminated water consumption, which can be applied in places of low economic resources.

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Coda waves’ tomography for surficial exploration
...
Vargas Jimenez, Carlos Alberto | 2015-04-26

This work extrapolates the application of coda-waves’ imaging, in order to determine lateral anomalies of attenuation for surficial targets, and providing experimental elements that justify its use in an economic way with a relatively good resolution. A numerical procedure for the spatial inversion of the attenuation, inside a small region, has been established. The numerical effectiveness of the inversion was evaluated carrying out a field experiment, which detects, based on attenuation contrasts, the presence of a tunnel built in the Colombian Eastern Cordillera. The experimental work allows the validation of the proposed method, and the acquisition of associated information about the geotechnical conditions at the experimental site.

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Currículo para la formación en investigación, innovación y pensamiento socio-crítico apoyado en TIC
...
Vergel Ortega, Mawency | 2020-05-01

La investigación parte de un análisis documental con enfoque cualitativo. Su objetivo es diseñar la tendencia curricular para orientar cursos, módulos y asignaturas de los diferentes programas académicos de la universidad Francisco de Paula Santander ubicada en Cúcuta Colombia. La tendencia curricular validada se centra en el desarrollo de competencias y habilidades desde el enfoque dialógico crítico orientado a la formación en investigación e innovación apoyado en las tecnologías de la comunicación. En conclusion, la tendencia ha fomentado en estudiantes y profesores el desarrollo de habilidades de pensamiento formal, crítico, creatividad, generación de ideas para el emprendimiento, desarrollo de investigaciones desde tic, diseño y generación de prototipos para la innovación.

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Effect of the mass flow rate on the heat transfer phenomena in a shell and tube heat exchanger
...
Delgado Ruiz, Leonardo | 2018

This article presents the development of some case studies on shell and tube heat exchangers using a graphical interface developed in MATLAB®. Through the case studies, the variation in the performance of the equipment was determined by means of the heat transfer coefficient in function of some parameters such as mass flow and tube arrangements, establishing initial conditions for each run that were established in the software. Likewise, the article shows in detail the methodology with which the study was developed, the fundamental equations used to calculate these results and the graphs obtained. Through this study, it was verified that the variables studied had such an influence on the parameters evaluated, with the objective of establishing selection and operation criteria when designing a shell and tube heat exchanger.

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Effort and safety factor in the unions of wooden structures used as carbon mine sustainability, mine case Baseli, Colombia
...
Acevedo Peñaloza, Carlos Humberto | 2018-08-30

The research has been dedicated to the study of the calculation of the stresses and design conditions given by the safety factor of operation of the structural members of the mines that use wood as their main support material. Wood is a lightweight material, easily transportable and easily handled in ademe systems [1]. For this case, the structural member that is analyzed is the union between the column and the beam of the mine doors, known as the German door. For the development of the study, the geometry of standard doors commonly found in coal mining has been taken into account. The reason for the research on the proposed topic stems from the need to have a secure control over the structural sustainability of the mines, since the use and possible deterioration of the wood under operating conditions and in the mining environment is very important for human safety.

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La ética en la formación del ingeniero de minas: representaciones sociales de actores educativos
...
PÉREZ GÓMEZ, RAIMUNDO ALONSO | 2015-04-01

El presente artículo muestra los resultados de una investigación cualitativa que buscó comprender las representaciones sociales de docentes y estudiantes sobre la ética en una institución de educación superior en Cúcuta, Colombia. Se utilizó el método hermenéutico, lo cual posibilitó comprender un tipo de conocimiento que se construye en el diálogo, la interacción, la intersubjetividad y la cotidianidad. La muestra fue intencional y la conformaron 25 estudiantes y 2 profesores. Los resultados del estudio evidencian que para los actores educativos la ética está relacionada con los valores de los sujetos, los cuales son aprendidos del entorno. Relacionan la ética con la sociedad y la definen como una ciencia que les da a las personas ciertos parámetros que deben seguir para cumplir con las buenas acciones dentro de la sociedad.

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Factors associated with capacities development in learning physic associate on numerical systems and Hamming code
...
Bustos Urbano, Víctor Jhoel | 2020-11-05

the research uses mixed, participatory action research tools within qualitative research, and factor analysis from the positivist approach; identifies and analyses factors associated with problem solving in capacity development within the framework of the metacognitive in learning of the physic, associate to approach with operations of numerical systems and detection error with Hamming code, is apply in the childhood of public educational institutions located in the border area of the Municipality of Villa del Rosario, Colombia. For this purpose, a diagnostic test was applied (α = 0.78), which allowed the identification of difficulties and variables related to learning and application in real contexts (r = 0.81); and a post-test (K = 0.7), that evaluates projects as a didactic strategy. There was evidence of the construction of knowledge and the application of these to practical life, also revealed that it was possible to awaken interest and motivation in students which significantly improved their level of analysis, interpretation and reasoning. Associated factors were coexistence (α = 0.788), emotional proposal didactics (α = 0.751), metacognitive skills (α = 0.767), self-control (α = 0.718), evaluation (α = 0.712), strategies and abilities in physic through the method and its application in logical circuits with indicators cognitive, attitudinal, motor processes.

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Heat transfer generated in an underground mining environment
...
Castro Duque, Yesid | 2018-10-18

The article presents the results of the heat transfer analysis that is generated in an underground environment, specifically in coal mines. The objective is to observe the variability of the results, comparing mines with level access and inclined access; Another parameter of comparison has been the variation of the altitude at which the mines are located; The parameters of temperatures, air flow, relative humidity, air density, length of roads, quantity of explosive, number of miners, etc., have been collected in a coal mine located in the city of Cúcuta - Colombia. In order to speed up its use, it has used its own development software, which serves to model comfort and environmental quality underground.

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Implementación de la prueba de tetrazolio en las semillas de Raphanus sativus L
...
SALAZAR MERCADO, SEIR ANTONIO | 2020-08-14

El Rábano (Raphanus sativus) es una especie de gran importancia por sus propiedades nutricionales, el alto porcentaje de aceite en sus semillas y la gran cantidad de metabolitos aprovechables. La producción de este cultivo se ve influenciada por factores como la utilización de semillas de alta o baja calidad. Es por esto que, en este estudio, se evaluó la aplicación del test de tetrazolio como método para determinar la viabilidad en semillas de Raphanus sativus. Inicialmente, se recolectaron semillas producidas en Villa del Rosario, Norte de Santander, Colombia, las cuales fueron expuestas a dos concentraciones (0,5 % y 1,0 %) y dos tiempos de exposición (24 y 48 horas). Posteriormente, fueron observadas en el estereoscopio para determinar el porcentaje de viabilidad, contabilizando las semillas que presentaron intensa coloración roja en su embrión; se obtuvieron un 99 % y 97 % de semillas viables con los tratamientos T2 (0,5 %, 24 h) y T4 (0,5 %, 48 h) respectivamente, no existiendo diferencias estadísticamente significativas entre sí (p ≤ 0,05: Tukey HSD). En comparación con la prueba de germinación, en la que se obtuvo un promedio de 99 %, no presentaron diferencias estadísticamente significativas los tratamientos T2, T3 y T4. Se concluyó con esto que la prueba de viabilidad con tetrazolio es efectiva a concentraciones de 0,5 % y 1,0 %, durante tiempos de exposición de 24 y 48 horas.

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Modelo de quíntuple hélice en la generación de ejes estratégicos durante y postpandemia 2020
...
Vergel Ortega, Mawency | 2020-09-01

La investigación tiene como propósito validar el modelo de quíntuple hélice identificando ejes estratégicos como factores que influyen la formación de los estudiantes de la universidad Francisco de Paula Santander-Cúcuta-Colombia, de acuerdo a su perfil, percepciones y necesidades; para este estudio se realizó una encuesta en la población total de estudiantes matriculados en I-2020, así como egresados, empresarios externos. La metodología estudio descriptivo, de análisis de contenido. Resultado: En el marco de la emergencia sanitaria generada por el Covid surgen tres categorías emergentes considerados como ejes estratégicos: generación de cadena de valor, saber y generación de conocimiento; Identidad y Universidad circular para la comunidad, moderna e inteligente; con subejes Universidad con gestión de calidad en la formación, universidad con gestiòn investigadora, productiva e innovadora, universidad sustentable, resiliente con equidad y hábitat de calidad, universidad multicultural con gestiòn para la convivencia, protección del ser humano, la paz, el deporte y bienestar; con gestiòn en redes, disruptiva, competitiva e internacional; categorías fenomenológicas presentes son equidad, sostenibilidad, global, integrada e inclusiva.

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Thermodynamic study of a supercritical carbon dioxide Brayton cycle based on main compression intercooling configuration
...
Orjuela Abril, Martha Sofia | 2021-06-09

This study presents detailed thermodynamic modeling of a supercritical Brayton cycle operating with carbon dioxide as a working fluid for electric power generation. The study incorporates a main compression intercooling configuration while elucidating the effect of operational parameters on the overall performance based on energy and exergy perspectives. The model was carefully validated with relevant authors. Moreover, two different optimization methodologies, namely particle swarm optimization and fmincom, are evaluated based on convergence criteria. The results demonstrated that the fmincom reduced the iteration time between 140 s - 180 s. The cycle pressure played a central role in the stability of the thermophysical properties of the working fluid. The energy and exergy efficiencies present a direct relation with the inlet temperature. The air cooling and regenerators represent the biggest contributor to exergy destruction, whereas the compressors featured minimal impact on the exergy degeneration. Overall, the proposed configuration demonstrated robust performance to implement with high-grade heat sources, especially in non-interconnected areas.

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Use of Bézier curves in the design of the displacement law of the cam-follower mechanism: Von Mises effective Stress
...
Acevedo Peñaloza, Carlos Humberto | 2020-07-01

Designing cams by Bézier Curves has become increasingly common, since the mathematical development of this method is less complex. Bezier curves are Bernstein-based polynomials under a unitary domain, and in that sense, this article presents the design of a cam using Bezier curves of degrees 5, 7 and 9. And beyond, this article seeks to show the variation of the effective effort of Von Mises in a cam-follower mechanism composed of a disc cam and a roller follower with translation movement and force closure. The expressions that allow determining the variation of Von Mises' effort for each of the curves used are presented. This variation is presented by means of graphs in which it is observed that as the degree of the curve increases, the magnitude of the efforts is greater, and this increases the probability of failure in the mechanisms. In addition, it was found that there is an inverse relationship between the stress and the radius of the primary circle of the cam.

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Repositorio Digital

Browsing Geología, Geotecnia y Minería – GEOENERGIA by Title

Análisis próximos y petrografía orgánica del carbón de la formación Los Cuervos en el sector de Chucarima (Chitagá, Norte de Santander) Colombia

Artisanal filter with geo-materials: a basic water treatment alternative for human consumption in marginal areas

Coda waves’ tomography for surficial exploration

Currículo para la formación en investigación, innovación y pensamiento socio-crítico apoyado en TIC

Effect of the mass flow rate on the heat transfer phenomena in a shell and tube heat exchanger

Effort and safety factor in the unions of wooden structures used as carbon mine sustainability, mine case Baseli, Colombia

La ética en la formación del ingeniero de minas: representaciones sociales de actores educativos

Factors associated with capacities development in learning physic associate on numerical systems and Hamming code

Heat transfer generated in an underground mining environment

Implementación de la prueba de tetrazolio en las semillas de Raphanus sativus L

Modelo de quíntuple hélice en la generación de ejes estratégicos durante y postpandemia 2020

Thermodynamic study of a supercritical carbon dioxide Brayton cycle based on main compression intercooling configuration

Use of Bézier curves in the design of the displacement law of the cam-follower mechanism: Von Mises effective Stress

Envíos recientes

Análisis próximos y petrografía orgánica del carbón de la formación Los Cuervos en el sector de Chucarima (Chitagá, Norte de Santander) Colombia

Artisanal filter with geo-materials: a basic water treatment alternative for human consumption in marginal areas

Coda waves’ tomography for surficial exploration

Currículo para la formación en investigación, innovación y pensamiento socio-crítico apoyado en TIC

Effect of the mass flow rate on the heat transfer phenomena in a shell and tube heat exchanger

Effort and safety factor in the unions of wooden structures used as carbon mine sustainability, mine case Baseli, Colombia

La ética en la formación del ingeniero de minas: representaciones sociales de actores educativos

Factors associated with capacities development in learning physic associate on numerical systems and Hamming code

Heat transfer generated in an underground mining environment

Implementación de la prueba de tetrazolio en las semillas de Raphanus sativus L

Modelo de quíntuple hélice en la generación de ejes estratégicos durante y postpandemia 2020

Thermodynamic study of a supercritical carbon dioxide Brayton cycle based on main compression intercooling configuration

Use of Bézier curves in the design of the displacement law of the cam-follower mechanism: Von Mises effective Stress

Portales Institucionales

Enlaces de Interés

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Browsing Geología, Geotecnia y Minería – GEOENERGIA by Title

Análisis próximos y petrografía orgánica del carbón de la formación Los Cuervos en el sector de Chucarima (Chitagá, Norte de Santander) Colombia ﻿

Artisanal filter with geo-materials: a basic water treatment alternative for human consumption in marginal areas ﻿

Coda waves’ tomography for surficial exploration ﻿

Currículo para la formación en investigación, innovación y pensamiento socio-crítico apoyado en TIC ﻿

Effect of the mass flow rate on the heat transfer phenomena in a shell and tube heat exchanger ﻿

Effort and safety factor in the unions of wooden structures used as carbon mine sustainability, mine case Baseli, Colombia ﻿

La ética en la formación del ingeniero de minas: representaciones sociales de actores educativos ﻿

Factors associated with capacities development in learning physic associate on numerical systems and Hamming code ﻿

Heat transfer generated in an underground mining environment ﻿

Implementación de la prueba de tetrazolio en las semillas de Raphanus sativus L ﻿

Modelo de quíntuple hélice en la generación de ejes estratégicos durante y postpandemia 2020 ﻿

Thermodynamic study of a supercritical carbon dioxide Brayton cycle based on main compression intercooling configuration ﻿

Use of Bézier curves in the design of the displacement law of the cam-follower mechanism: Von Mises effective Stress ﻿

Envíos recientes

Análisis próximos y petrografía orgánica del carbón de la formación Los Cuervos en el sector de Chucarima (Chitagá, Norte de Santander) Colombia

Artisanal filter with geo-materials: a basic water treatment alternative for human consumption in marginal areas

Coda waves’ tomography for surficial exploration

Currículo para la formación en investigación, innovación y pensamiento socio-crítico apoyado en TIC

Effect of the mass flow rate on the heat transfer phenomena in a shell and tube heat exchanger

Effort and safety factor in the unions of wooden structures used as carbon mine sustainability, mine case Baseli, Colombia

La ética en la formación del ingeniero de minas: representaciones sociales de actores educativos

Factors associated with capacities development in learning physic associate on numerical systems and Hamming code

Heat transfer generated in an underground mining environment

Implementación de la prueba de tetrazolio en las semillas de Raphanus sativus L

Modelo de quíntuple hélice en la generación de ejes estratégicos durante y postpandemia 2020

Thermodynamic study of a supercritical carbon dioxide Brayton cycle based on main compression intercooling configuration

Use of Bézier curves in the design of the displacement law of the cam-follower mechanism: Von Mises effective Stress

Portales Institucionales

Análisis próximos y petrografía orgánica del carbón de la formación Los Cuervos en el sector de Chucarima (Chitagá, Norte de Santander) Colombia

Artisanal filter with geo-materials: a basic water treatment alternative for human consumption in marginal areas

Coda waves’ tomography for surficial exploration

Currículo para la formación en investigación, innovación y pensamiento socio-crítico apoyado en TIC

Effect of the mass flow rate on the heat transfer phenomena in a shell and tube heat exchanger

Effort and safety factor in the unions of wooden structures used as carbon mine sustainability, mine case Baseli, Colombia

La ética en la formación del ingeniero de minas: representaciones sociales de actores educativos

Factors associated with capacities development in learning physic associate on numerical systems and Hamming code

Heat transfer generated in an underground mining environment

Implementación de la prueba de tetrazolio en las semillas de Raphanus sativus L

Modelo de quíntuple hélice en la generación de ejes estratégicos durante y postpandemia 2020

Thermodynamic study of a supercritical carbon dioxide Brayton cycle based on main compression intercooling configuration

Use of Bézier curves in the design of the displacement law of the cam-follower mechanism: Von Mises effective Stress