J. O. Bastidas, M. Sánchez, Aldemar Franco Montenegro
El humedal el Coroncoro es un humedal urbano, con vegetaciones nativas al interior de lugares pantanosos con agua dulce aun reparable y tratable, para ser aptas al consumo. El estudio tuvo como objetivo la estimacion, en terminos monetarios del valor economico del agua del humedal, aplicando el metodo de valoracion contingente (MVC), bajo la pregunta de disposicion a pagar por un proyecto que propenda por el cuidado y tratamiento que mejoraria la calidad del agua del lugar mencionado. Durante 4 meses, se encuestaron a 360 persona que visitaron el humedal. Se concluye que la disponibilidad a pagar (DAP) por las familias visitantes al humedal por la consecucion del proyecto que permitiera el cuidado y tratamiento del agua del humedal, es significante a un 85%, con entradas que registran hasta los $5000 pesos colombianos por persona. De esta manera el valor economico para la realizacion de este proyecto es altamente rentable.
El Coroncoro湿地是一个城市湿地，在沼泽地区有原生植被，淡水仍然可以修复和处理，适合消费。本研究的目的是评估湿地水的经济价值的货币方面，应用条件估值方法(MVC)，在愿意为一个倾向于护理和处理的项目支付费用的问题下，以改善上述地方的水质。在4个月的时间里，360名访问湿地的人接受了调查。本研究的目的是评估在该地区进行的项目对湿地的影响，并评估在该地区进行的项目对湿地的影响。本研究的目的是评估在该地区进行的项目对湿地的影响，以及在该地区进行的项目对湿地的影响。因此，这个项目的经济价值是非常有利可图的。
{"title":"Valoración económica del recurso natural agua del humedal Coroncoro de Villavicencio","authors":"J. O. Bastidas, M. Sánchez, Aldemar Franco Montenegro","doi":"10.21501/21454086.1921","DOIUrl":"https://doi.org/10.21501/21454086.1921","url":null,"abstract":"El humedal el Coroncoro es un humedal urbano, con vegetaciones nativas al interior de lugares pantanosos con agua dulce aun reparable y tratable, para ser aptas al consumo. El estudio tuvo como objetivo la estimacion, en terminos monetarios del valor economico del agua del humedal, aplicando el metodo de valoracion contingente (MVC), bajo la pregunta de disposicion a pagar por un proyecto que propenda por el cuidado y tratamiento que mejoraria la calidad del agua del lugar mencionado. Durante 4 meses, se encuestaron a 360 persona que visitaron el humedal. Se concluye que la disponibilidad a pagar (DAP) por las familias visitantes al humedal por la consecucion del proyecto que permitiera el cuidado y tratamiento del agua del humedal, es significante a un 85%, con entradas que registran hasta los $5000 pesos colombianos por persona. De esta manera el valor economico para la realizacion de este proyecto es altamente rentable.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68238523","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}
Paula Andrea Montoya-Zuluaga, Isabel Cristina Puerta-Lopera, Olber Eduardo Arango-Tobón, Juan Diego Betancur-Arias
This Article shows, from de alignments of the research vice rector office, the dinamics, experiencies and products of the Luis Amigo Catholic university, and in particular of the basic and applied neurosciences group (NBA) and its work´s lines, in the field of the research.
{"title":"La forma de hacer y entender la investigación desde el grupo neurociencias básicas y aplicadas (nba)","authors":"Paula Andrea Montoya-Zuluaga, Isabel Cristina Puerta-Lopera, Olber Eduardo Arango-Tobón, Juan Diego Betancur-Arias","doi":"10.21501/21454086.2272","DOIUrl":"https://doi.org/10.21501/21454086.2272","url":null,"abstract":"This Article shows, from de alignments of the research vice rector office, the dinamics, experiencies and products of the Luis Amigo Catholic university, and in particular of the basic and applied neurosciences group (NBA) and its work´s lines, in the field of the research.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68239194","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}
Andrés Felipe Serna-Ruiz, Edward Johan Marín-García, Sandra Liliana Alzate-Plaza
The development of a tool to deal with isolated photovoltaic systems is presented in this paper. The methodology implemented is based on different mathematic models analysis used in other systems complemented with work referenced by the bibliography. Additionally, a radiation database provided by Universidad del Quindio in Armenia, Colombia has been included throughout this work. The software is designed by employing GUI Matlab®interface. This tool gives to the user the possibility of dimensioning an SFVA as well as to design and evaluate the obtained results such that it offers to make a correct decision toward a specific implementation. Finally, this software provides to the designer, the configuration parameters, a number of solar panels, accumulators, regulators and inverters needed according to criterion established either by the designer himself or given by the software itself.
{"title":"Herramienta para el dimensionamiento de sistemas fotovoltáicos aislados","authors":"Andrés Felipe Serna-Ruiz, Edward Johan Marín-García, Sandra Liliana Alzate-Plaza","doi":"10.21501/21454086.1936","DOIUrl":"https://doi.org/10.21501/21454086.1936","url":null,"abstract":"The development of a tool to deal with isolated photovoltaic systems is presented in this paper. The methodology implemented is based on different mathematic models analysis used in other systems complemented with work referenced by the bibliography. Additionally, a radiation database provided by Universidad del Quindio in Armenia, Colombia has been included throughout this work. The software is designed by employing GUI Matlab®interface. This tool gives to the user the possibility of dimensioning an SFVA as well as to design and evaluate the obtained results such that it offers to make a correct decision toward a specific implementation. Finally, this software provides to the designer, the configuration parameters, a number of solar panels, accumulators, regulators and inverters needed according to criterion established either by the designer himself or given by the software itself.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68238579","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}
Jovani Alberto Jiménez-Builes, Rafael Esteban Arango-Sanchez, Leidy Diana Jiménez-Pinzón
This article presents the study of two metaheuristic methods based in populations, the comparison between two search algorithms, the particle swarm algorithm (PSO) and genetic algorithm (GA) for solving problems whose objective is optimize always looking for the lowest value. To carry out this study, we made an application in JAVA programming language that contains the implementation of the two algorithms to be used for evaluation of nonlinear functions. The result of this work is shown by comparing the accuracy to obtain the optimal solution of the methods listed above, showing the evolution of the results in graphical form to reach the solution. From this study it can be concluded that the particle swarm optimization has a better performance than genetic algorithm.
{"title":"Métodos de búsqueda usando los algoritmos de enjambre de partículas y genético","authors":"Jovani Alberto Jiménez-Builes, Rafael Esteban Arango-Sanchez, Leidy Diana Jiménez-Pinzón","doi":"10.21501/21454086.1901","DOIUrl":"https://doi.org/10.21501/21454086.1901","url":null,"abstract":"This article presents the study of two metaheuristic methods based in populations, the comparison between two search algorithms, the particle swarm algorithm (PSO) and genetic algorithm (GA) for solving problems whose objective is optimize always looking for the lowest value. To carry out this study, we made an application in JAVA programming language that contains the implementation of the two algorithms to be used for evaluation of nonlinear functions. The result of this work is shown by comparing the accuracy to obtain the optimal solution of the methods listed above, showing the evolution of the results in graphical form to reach the solution. From this study it can be concluded that the particle swarm optimization has a better performance than genetic algorithm.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68238377","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}
In this research were evaluated the optimal conditions for the production of fat from removes the flesh in the Curtimbres company in Itagui S.A., located in the department of Antioquia, Colombia. Parameters were measured as the temperature, volume of cooking water, liquid waste treatment by coagulation-flocculation, to obtain products as the clarified that could be used in the washing of the fur zone and a solid residue which was realized a composting treatment, therefore it shows to be a viable and economic technology.
{"title":"Diseño óptimo del proceso de extracción de grasa a partir del residuo de descarne derivado del proceso de curtición","authors":"L. Cardona-Palacio","doi":"10.21501/21454086.1903","DOIUrl":"https://doi.org/10.21501/21454086.1903","url":null,"abstract":"In this research were evaluated the optimal conditions for the production of fat from removes the flesh in the Curtimbres company in Itagui S.A., located in the department of Antioquia, Colombia. Parameters were measured as the temperature, volume of cooking water, liquid waste treatment by coagulation-flocculation, to obtain products as the clarified that could be used in the washing of the fur zone and a solid residue which was realized a composting treatment, therefore it shows to be a viable and economic technology.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68238449","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}
Luis Miguel Jiménez-Gómez, Fred Restrepo-Giraldo, Natalia María Acevedo-Prins
The portfolio profitability depends mainly on the underlying risk associated, which is defined as the probability that the investment results may be different than expected. Thus, one way to mitigate the risk is through diversification. However, considering that the portfolio diversification helps to reduce the associated risk, international diversification portfolio provides additional opportunities to reduce risk. This research shows the benefits of international diversification portfolios. For this, investment portfolios formed only with Colombian financial assets, they will diversify with international financial assets such as, Exchange Traded Funds – ETF. We will estimate and compare the Value at Risk of each of the portfolios with traditional methodologies for identifying international financial assets that diversify the portfolios of the Colombian market better. The main finding is that the portfolios with the most liquid shares of the Colombia Stock Exchange decrease the risk when considering ETF that replicate international indices, specifically the S & P 500.
{"title":"Diversificación Internacional de Portafolios en Colombia por Medio de ETF","authors":"Luis Miguel Jiménez-Gómez, Fred Restrepo-Giraldo, Natalia María Acevedo-Prins","doi":"10.21501/21454086.1750","DOIUrl":"https://doi.org/10.21501/21454086.1750","url":null,"abstract":"The portfolio profitability depends mainly on the underlying risk associated, which is defined as the probability that the investment results may be different than expected. Thus, one way to mitigate the risk is through diversification. However, considering that the portfolio diversification helps to reduce the associated risk, international diversification portfolio provides additional opportunities to reduce risk. This research shows the benefits of international diversification portfolios. For this, investment portfolios formed only with Colombian financial assets, they will diversify with international financial assets such as, Exchange Traded Funds – ETF. We will estimate and compare the Value at Risk of each of the portfolios with traditional methodologies for identifying international financial assets that diversify the portfolios of the Colombian market better. The main finding is that the portfolios with the most liquid shares of the Colombia Stock Exchange decrease the risk when considering ETF that replicate international indices, specifically the S & P 500.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68238226","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}
Aun encuentro profesionales que no hacen respetar la profesion; necesitamos formar un ingeniero generalista que pueda aplicar creativamente soluciones a problemas colombianos, conociendo nuestro entorno y estimulando la conservacion y mejora del mismo.
{"title":"Editorial: Disciplinas de la ingeniería Colombiana: ¿dignas de exportación?","authors":"J. Gaviria-Hincapié","doi":"10.21501/21454086.1838","DOIUrl":"https://doi.org/10.21501/21454086.1838","url":null,"abstract":"Aun encuentro profesionales que no hacen respetar la profesion; necesitamos formar un ingeniero generalista que pueda aplicar creativamente soluciones a problemas colombianos, conociendo nuestro entorno y estimulando la conservacion y mejora del mismo.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68238274","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}
Arloys Macías-Rojas, Martha Dunia Delgado-Dapena, Jenny Fajardo-Calderín, Danay Larrosa-Uribazo
Several authors agree with the importance of the tests like element of quality control of the software and in the impossibility of their realization of exhaustive way. This opinion defends that, the necessary quantity of stages and test values to achieve the maximum coverage is too big, what converts the test-case design, and in particular the generation of its values, in a combinatorial problem. That´s why, in many instances, in front of the impossibility of covering all the stages, testers leave out of the design some interesting values, which can discover inconsistencies with the specified requirements. This work presents a proposal for the automatic generation of values of functional test cases, by means of the use of meta-heuristic algorithms and maximizing the coverage of the stages. Furthermore, the algorithms implemented for the generation of initial values and for the generation of combinations are detailed. Additionally a set of good practices to use the component and the comparison of the obtained results with other existing solutions are described.
{"title":"Generador de Valores de Casos de Prueba Funcionales","authors":"Arloys Macías-Rojas, Martha Dunia Delgado-Dapena, Jenny Fajardo-Calderín, Danay Larrosa-Uribazo","doi":"10.21501/21454086.1767","DOIUrl":"https://doi.org/10.21501/21454086.1767","url":null,"abstract":"Several authors agree with the importance of the tests like element of quality control of the software and in the impossibility of their realization of exhaustive way. This opinion defends that, the necessary quantity of stages and test values to achieve the maximum coverage is too big, what converts the test-case design, and in particular the generation of its values, in a combinatorial problem. That´s why, in many instances, in front of the impossibility of covering all the stages, testers leave out of the design some interesting values, which can discover inconsistencies with the specified requirements. This work presents a proposal for the automatic generation of values of functional test cases, by means of the use of meta-heuristic algorithms and maximizing the coverage of the stages. Furthermore, the algorithms implemented for the generation of initial values and for the generation of combinations are detailed. Additionally a set of good practices to use the component and the comparison of the obtained results with other existing solutions are described.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68238638","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}
El proposito de este proyecto de investigacion de ingenieria, es el diseno y puesta en marcha de una vivienda ecosostenible: vivienda dotada de un conjunto de sistemas ecologicos, que ademas de contribuir al cuidado y preservacion del medio ambiente mediante la mitigacion de los danos causados al mismo por el hombre, impacta positivamente la economia de los ocupantes al disminuir los costos de servicios publicos. Dicha ecovivienda integra tres sistemas: tratamiento de aguas grises (con innovaciones para la reutilizacion real del liquido y el uso de las aguas lluvias), paneles solares y techos verdes, todos ellos disenados para trabajar en armonia con la energia fotovoltaica y con el ambiente. Igualmente, el documento permite al lector observar las dimensiones estructurales, hidraulicas y electricas de una manera didactica, acorde con el ideal arquitectonico del sitio geografico seleccionado: El Espinal Colombia, una ciudad de temperatura promedio 34°c- 93.2°F (ubicada 4° 09' latitud Norte y longitud 74° 53' al oeste de Greenwich).
{"title":"Diseño de Vivienda Ecosostenible en el Alto Magdalena de Colombia: Proyecto Innovador Para el Desarrollo Sustentable.","authors":"Ancizar Barragán-Alturo","doi":"10.21501/21454086.1728","DOIUrl":"https://doi.org/10.21501/21454086.1728","url":null,"abstract":"El proposito de este proyecto de investigacion de ingenieria, es el diseno y puesta en marcha de una vivienda ecosostenible: vivienda dotada de un conjunto de sistemas ecologicos, que ademas de contribuir al cuidado y preservacion del medio ambiente mediante la mitigacion de los danos causados al mismo por el hombre, impacta positivamente la economia de los ocupantes al disminuir los costos de servicios publicos. Dicha ecovivienda integra tres sistemas: tratamiento de aguas grises (con innovaciones para la reutilizacion real del liquido y el uso de las aguas lluvias), paneles solares y techos verdes, todos ellos disenados para trabajar en armonia con la energia fotovoltaica y con el ambiente. Igualmente, el documento permite al lector observar las dimensiones estructurales, hidraulicas y electricas de una manera didactica, acorde con el ideal arquitectonico del sitio geografico seleccionado: El Espinal Colombia, una ciudad de temperatura promedio 34°c- 93.2°F (ubicada 4° 09' latitud Norte y longitud 74° 53' al oeste de Greenwich).","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68237830","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}
Sebastián Amaya-Zapata, David Pulgarín-Velásquez, Í. Torres-Pardo
This project is a products selector system guided by machine vision, using an integrated webcam to python free software in conjunction with the OPEN-CV software. The operating principle is positioning objects of a color previously set by the user, using the RGB color system in front the lens, which take care of image capture and processing through language software. The system, permits inform the user if the piece have the color entered and the shape requested. With this program we made an effective identification both in color and shape.
{"title":"Desarrollo e Implementación de un Sistema de Visión Artificial Basado en Lenguajes de Uso Libre para un Sistema Seleccionador de Productos de un Centro Integrado de Manufactura (CIM)","authors":"Sebastián Amaya-Zapata, David Pulgarín-Velásquez, Í. Torres-Pardo","doi":"10.21501/21454086.1702","DOIUrl":"https://doi.org/10.21501/21454086.1702","url":null,"abstract":"This project is a products selector system guided by machine vision, using an integrated webcam to python free software in conjunction with the OPEN-CV software. The operating principle is positioning objects of a color previously set by the user, using the RGB color system in front the lens, which take care of image capture and processing through language software. The system, permits inform the user if the piece have the color entered and the shape requested. With this program we made an effective identification both in color and shape.","PeriodicalId":53826,"journal":{"name":"Revista Digital Lampsakos","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2016-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68238180","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}
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