{"title":"Optimización de la operación de una microgrid considerando el costo de operación, la vida útil de las baterías y el costo de incertidumbre de energía eólica","authors":"E. Carvajal, G. J. Muñoz, S. Rivera","doi":"10.31908/19098367.4011","DOIUrl":"https://doi.org/10.31908/19098367.4011","url":null,"abstract":"Hoy en dia los sistemas autonomos que incorporan las fuentes de energia renovables y sistemas de almacenamiento de energia en baterias, desempenan un papel fundamental como solucion a inconvenientes de suministro de energia. Estos sistemas son una buena alternativa, principalmente en zonas apartadas de la red electrica, como islas. En este paper se analizan los costos de perdida de vida util de las baterias, costos de operacion y mantenimiento y los costos de incertidumbre, asociados a agentes energeticos renovables para una microgrid autonoma desarrollada en la isla Dongfushan en China. Esto con el fin de obtener los parametros adecuados para la optima operacion de la misma, asi como las caracteristicas especificas de vida util de baterias del tipo leadacid. Se pretende, por medio del algoritmo no dominante de clasificacion genetica, por sus siglas en ingles NSGA II, alcanzar la maximizacion de las ya mencionadas variables: vida util de las baterias y reduccion del costo de generacion, planteando una optimizacion multiobjetivo. Ademas de lo anterior, se incluyen los costos de incertidumbre asociados a las energias renovables solar y eolica.","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49422676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Una propuesta de gestión de la seguridad de la información aplicado a una entidad pública colombiana","authors":"D. Carvajal, A. Cardona, F. J. Valencia","doi":"10.31908/19098367.4016","DOIUrl":"https://doi.org/10.31908/19098367.4016","url":null,"abstract":"La informacion es considerada actualmente uno de los recursos mas importantes en las organizaciones, no solo como insumo fundamental de los procesos, sino como recurso que adecuadamente gestionado permite delimitar estrategias organizacionales, lo que no ha sido ajeno en el sector publico, en especial en lo que tiene que ver con su proteccion. El presente articulo tiene como objetivo presentar un caso de aplicacion de la gestion de seguridad de la informacion en una entidad publica, utilizando para ello, previa revision de la literatura, cuatro de los estandares internacionales de seguridad de la informacion (ISO/IEC 27001:2013, ISO/IEC 27002:2013, ISO/IEC 27003:2010 e ISO/IEC 27005:2008) y su contextualizacion en Colombia, a partir de las directrices establecidas por el Ministerio de Tecnologias de Informacion. Se obtuvo como resultado el desarrollo de una metodologia ajustada a las necesidades de la entidad publica con parametros e indicadores de gestion del riesgo y controles pertinentes para disminuir la incertidumbre en la gestion de la informacion. El aporte realizado por el presente trabajo esta relacionado con la integracion de estandares internacionales de seguridad de la informacion y su contextualizacion en un ambito gubernamental, dando respuesta a requerimientos regulatorios y permitiendo una vez finalizada la implementacion, contar con un desarrollo metodologico pertinente que le permite a la organizacion publica desarrollar de forma continuada los procesos de gestion de seguridad de la informacion.","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43017949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aplicación de los metaversos y la realidad virtual en la enseñanza","authors":"J. Anacona, E. E. Millán, C. A. Gómez","doi":"10.31908/19098367.4015","DOIUrl":"https://doi.org/10.31908/19098367.4015","url":null,"abstract":"El objetivo de este articulo, es desarrollar una revision de literatura sobre el uso de los metaversos y la realidad virtual enfocada hacia la ensenanza. Teniendo en cuenta que la educacion vive un proceso continuo de cambio en busca de la calidad, el uso de nuevas herramientas favorece dicho proceso, por lo tanto, la utilizacion de las plataformas virtuales enfocadas a realidad virtual y metaversos son en esencia herramientas que dinamizan los procesos de ensenanza y aprendizaje, contribuyen a organizar y a actualizar los contenidos, y permiten que el estudiante y educando interactuen dentro del ambiente virtual. En este contexto, el presente trabajo se desarrollo basado en una metodologia exploratoria, descriptiva; utilizando las categorias metaversos, realidad virtual y ensenanza, se realizo una busqueda en las bases de datos Science, Scopus y web Science obteniendo cien articulos de referencia, de los cuales se analizan las categorias senaladas.","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42666183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enrutamiento en redes de sensores inalámbricos usando algoritmos bioinspirados","authors":"J. C. Blandón, J. A. López, L. E. Tobón","doi":"10.31908/19098367.3823","DOIUrl":"https://doi.org/10.31908/19098367.3823","url":null,"abstract":"Se presenta una solucion para el problema de enrutamiento en una red de sensores inalambricos utilizando inteligencia de enjambres, lo cual ha sido aplicado satisfactoriamente a otros problemas de enrutamiento, por ejemplo, el problema del agente viajero, entre otros. El enrutamiento en una red de sensores inalambricos puede ser entendido como un problema de optimizacion. En la solucion presentada, existe un nodo origen y un nodo destino. El problema esta enfocado en encontrar las rutas que permita conectar un par de nodos de manera optima. El espacio de busqueda es el conjunto de posibles rutas que conectan esos dos nodos. Se implementaron dos algoritmos bioinspirados para el enrutamiento: un algoritmo basado en hormigas y otro algoritmo basado en abejas. Los resultados muestran que los algoritmos Bioinspirados mejoran el rendimiento en una red de sensores inalambricos, considerando aspectos como la cantidad de energia disponible en los nodos. Las simulaciones muestran que se produce una mejora en el tiempo de vida de la red.","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41970346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. S. Ramírez-Navas, C. A. Solís-Carvajal, C. A. Vélez
{"title":"Tecnología de membranas: Obtención de proteínas de lactosuero","authors":"J. S. Ramírez-Navas, C. A. Solís-Carvajal, C. A. Vélez","doi":"10.31908/19098367.3815","DOIUrl":"https://doi.org/10.31908/19098367.3815","url":null,"abstract":"The whey proteins have acquired great importance due to their nutritional and technological functionality. In the present review, we studied the use of Ultrafiltration (UF) applied to the separation of proteins and peptides from whey. It was found that the UF is one of the best alternatives. However, to achieve better results it is necessary to: accompany other membrane technologies (microfiltration, nanofiltration, electrodialysis, diafiltration), select the type of UF membrane to be used, and adjust the conditions of transmembrane pressure, pH and temperature.","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46466009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Control de escorrentías urbanas mediante Sistemas Urbanos de Drenaje Sostenible (SUDS): Pozos/Zanjas de infi ltración","authors":"Elkin Cubides, G. Santos","doi":"10.31908/19098367.3813","DOIUrl":"https://doi.org/10.31908/19098367.3813","url":null,"abstract":"In the framework of the efficient management of water resources and the environment, the control of the surface runoff is an area of study of great importance in the development of cities, because their exponential growth and the increase of non-permeable hard zones produces greater runoff transport times. Thus, environmental and economic implications are generated that leads to the implementation of mayor structures for the respective transport. When the control by these elements is not possible, fl ood phenomena aff ect the quality of life of the population and emergency plans for these risks must be generated. The implementation of alternative sustainable drainage systems such as Sustainable Urban Drainage Systems (SUDS) allows to reduce and to delay the storm surges that occur in. Next, an analysis of results related to hydraulic and hydrological modeling and the EPA-SWMM, a program developed by the United States Environmental Protection Agency (EPA) for the analysis of rainfall and hydraulic behavior of networks of Sewerage.","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46533800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cálculo y análisis de la máxima eficiencia anual de los seguidores solares1","authors":"C. R. Batista, R. Urquiza","doi":"10.31908/19098367.3812","DOIUrl":"https://doi.org/10.31908/19098367.3812","url":null,"abstract":"A standard methodology is proposed in this work to calculate the efficiency of solar trackers for any geographical latitude. A literature review was performed, and related articles were selected. Following an analysis of the information, a dispersion of the reported results with respect to the mean value was identified. An algorithm was developed to calculate theoretical maximum energy efficiency, based on a scientific review of the concept of efficiency. The algorithm was programmed and ran according to the latitude in the reports. Maximum values of theoretical effi ciency were obtained for each of the reported latitudes, presenting signifi cant diff erences regarding the data presented by the authors. No clear methodologies for calculating the efficiency of solar trackers were identified in the articles studied. The proposed methodology be used as a reference, given that the real effi ciency cannot be greater than the theoretical.","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.31908/19098367.3812","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47720546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Planificación de trayectorias por técnica de A* y suavizado por curvas de Bezier para la herramienta del sistema de remoción de maleza de un robot dedicado a labores de agricultura de precisión","authors":"Leonardo Solaque, A. Velasco, A. Riveros","doi":"10.31908/19098367.3814","DOIUrl":"https://doi.org/10.31908/19098367.3814","url":null,"abstract":"The ground and aerial robotics, is being put into operation of agribusiness. Precision agriculture tasks have opened a dominant fi eld to integrate the developments of mobile robotics. Trajectory planning is an option for weed removal systems from a 3D image processing system. This system determines the location of the weed (not treated here) and plans the movement of the tool to eradicate it. This tool is called end eff ector and it is integrated into a positioning system XYZ. This one is found on a mobile platform called Ceres_AgroBot (Robot created for agricultural work), who moves through the crop and performs inspection-removal. The article treated here presents a solution to find the trajectory that must follow the tool that removes the weeds from the crop, without colliding with the plants of interest. It is based on the implementation of a search algorithm supported on the A*, technique for determining the path in 3D space with obstacles. As inputs are: the rest point of the tool (), the coordinate of the weed () and the coordinates of the objects. Sometimes the trajectory found produces movements that cause sudden displacements and strong actions in the actuators, so it is also presented, the way to integrate the smoothing of the trajectory by the Bezier techniques, such that the curve is adjusted to a dynamic continuous and appropriate to the elements that make up the removal system","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41510638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evaluación de la vulnerabilidad sísmica de la tapia en Pasto (Nariño, Colombia). Caso Teatro Imperial – Ingeniería y Patrimonio","authors":"W. Castillo, G. Palma, H. Moncayo","doi":"10.31908/19098367.3816","DOIUrl":"https://doi.org/10.31908/19098367.3816","url":null,"abstract":"In San Juan de Pasto, an area of high seismicity, the buildings on land constitute a value of the nation’s cultural interest; Most of the historical buildings in Colombia are of this type, such as the Imperial Theater (1922). Therefore, it is a challenge for Colombian engineering and for the Ministry of Culture to determine seismic vulnerability to regulate the protection of heritage; however, the Sismo Resistente Norm of Colombia does not regulate structural analysis and recovery due to lack of research. This article off ers as response the static and dynamic evaluation of the materials, in light of the structures to determine the seismic vulnerability of the wall, this is resolved with the mechanical physical characterization by the mechanics of the fracture, ultrasonic speed tests, for project consolidation methods, based on a non-linear analysis and obtain the curves with performance capacity, the average damage ratio, and thus promote consolidation methods with seismic response criteria, over-eff ort index, and intervention costs They are conditioned","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42348598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Zambrano, M. A. Jaramillo, D. D. Pérez, M. Serrano
{"title":"Fórmulas de selección económica de contratistas en adjudicación de obras de infraestructura vial: Estudio de caso Valle del Cauca, Colombia","authors":"N. Zambrano, M. A. Jaramillo, D. D. Pérez, M. Serrano","doi":"10.31908/19098367.3810","DOIUrl":"https://doi.org/10.31908/19098367.3810","url":null,"abstract":"El estatuto general para la contratacion de la administracion publica en Colombia (Ley 80 de 1983) establece que las entidades estatales (Ley 489 de 1988), excepto aquellas en las cuales la ley no les obliga a solicitar mas de una propuesta, deben seleccionar a sus contratistas a traves de licitaciones, convocatorias o concurso publico, o mediante cualquier modalidad contractual, segun el regimen juridico de contratacion que le sea aplicable (Ley 816 de 2003). Con el fi n de garantizar la transparencia en los procesos licitatorios, se han planteado diferentes tipos de formulas y, aun asi, en ocasiones termina favoreciendose el mismo grupo de personas. En este articulo se analiza el impacto de la formula de seleccion de oferentes en proyectos de infraestructura vial en el Departamento del Valle del Cauca. Con este proposito, se tomaron como base pliegos de condiciones de contratos disponibles en la plataforma digital del Servicio Electronico de Contratacion Publica, SECOP. Como resultado, se encontro que las formulas mas empleadas son la media aritmetica y la media geometrica con presupuesto ofi cial. Se deja entrever que, a pesar de la gran variedad de formulas, se presenta una alta adjudicacion de obras de manera simultanea a personas naturales participando en diferentes modalidades de asociacion.","PeriodicalId":41325,"journal":{"name":"ENTRE CIENCIA E INGENIERIA","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47356375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}