Pub Date : 2021-01-11DOI: 10.16925/2357-6014.2021.01.04
Luisa Paz-Fernandez
Introduction: Article resulting from the research "Multilevel validation system with an emphasis on data transmission in a Gateway for the IoT," supported by the Research Line in Internet Applications of the University of Cauca during 2020. Problem: Bridges between wireless sensor networks (WSN) and the Internet are necessary for the for the operation of IoT devices. However, these networks are made up of weak links that can generate packet loss. Objective: present an alternative to improve the data transmission validation process given a frame implemented in a previously developed WSN-IoT system. Methodology: Scientometric review in the WoS and Scopus databases on concepts related to Industry 4.0 (data from 2015 to 2019), IoT and WSN (data from 1990 to 2019), and algorithm generation based on Scrum and test-based development (TDD). Results: A validation application that captures, analyzes frames, and compares the values of the monitored variables in each layer of the implemented model, and ultimately reports the errors detected in the data transmission. Conclusion: with the completion of this investigation, the data transmission validation process of the WSN-IoT system was improved, focused on logistics and monitoring, automating the process. Originality: An alternative to validate the correct transmission of data in a WSN-IoT system is achieved through this research and shown for the first time on trending topics such as industry 4.0, the industrial Internet of things, the supply chain, logistics, and traceability. Limitations: little research in the area of validation, few and delicate hardware devices, in addition to a high dependence on networks to monitor the performance of the designed application.
{"title":"Multilayer validation system for the automation of data in a WSN network with IOT devices","authors":"Luisa Paz-Fernandez","doi":"10.16925/2357-6014.2021.01.04","DOIUrl":"https://doi.org/10.16925/2357-6014.2021.01.04","url":null,"abstract":"Introduction: Article resulting from the research \"Multilevel validation system with an emphasis on data transmission in a Gateway for the IoT,\" supported by the Research Line in Internet Applications of the University of Cauca during 2020. \u0000 \u0000Problem: Bridges between wireless sensor networks (WSN) and the Internet are necessary for the for the operation of IoT devices. However, these networks are made up of weak links that can generate packet loss. \u0000 \u0000Objective: present an alternative to improve the data transmission validation process given a frame implemented in a previously developed WSN-IoT system. \u0000 \u0000Methodology: Scientometric review in the WoS and Scopus databases on concepts related to Industry 4.0 (data from 2015 to 2019), IoT and WSN (data from 1990 to 2019), and algorithm generation based on Scrum and test-based development (TDD). \u0000 \u0000Results: A validation application that captures, analyzes frames, and compares the values of the monitored variables in each layer of the implemented model, and ultimately reports the errors detected in the data transmission. \u0000 \u0000Conclusion: with the completion of this investigation, the data transmission validation process of the WSN-IoT system was improved, focused on logistics and monitoring, automating the process. \u0000 \u0000Originality: An alternative to validate the correct transmission of data in a WSN-IoT system is achieved through this research and shown for the first time on trending topics such as industry 4.0, the industrial Internet of things, the supply chain, logistics, and traceability. \u0000 \u0000Limitations: little research in the area of validation, few and delicate hardware devices, in addition to a high dependence on networks to monitor the performance of the designed application. \u0000 ","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45972277","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}
Pub Date : 2021-01-01DOI: 10.16925/2357-6014.2021.01.10
Rachna Behl, Indu Kashyap
Introduction: The present paper is the outcome of the research “Locus Recommendation using Probabilistic Matrix Factorization Techniques” carried out in Manav Rachna International Institute of Research and Studies, India in the year 2019-20. Methodology: Matrix factorization is a model-based collaborative technique for recommending new items to the users. Results: Experimental results on two real-world LBSNs showed that PFM consistently outperforms PMF. This is because the technique is based on gamma distribution to the model user and item matrix. Using gamma distribution is reasonable for check-in frequencies which are all positive in real datasets. However, PMF is based on Gaussian distribution that can allow negative frequency values as well. Conclusion: The motive of the work is to identify the best technique for recommending locations with the highest accuracy and allow users to choose from a plethora of available locations; the best and interesting location based on the individual’s profile. Originality: A rigorous analysis of Probabilistic Matrix Factorization techniques has been performed on popular LBSNs and the best technique for location recommendation has been identified by comparing the accuracy viz RMSE, Precision@N, Recall@N, F1@N of different models. Limitations: User’s contextual information like demographics, social and geographical preferences have not been considered while evaluating the efficiency of probabilistic matrix factorization techniques for POI Recommendations.
{"title":"Locus recommendation using probabilistic matrix factorization techniques","authors":"Rachna Behl, Indu Kashyap","doi":"10.16925/2357-6014.2021.01.10","DOIUrl":"https://doi.org/10.16925/2357-6014.2021.01.10","url":null,"abstract":"Introduction: The present paper is the outcome of the research “Locus Recommendation using Probabilistic Matrix Factorization Techniques” carried out in Manav Rachna International Institute of Research and Studies, India in the year 2019-20. Methodology: Matrix factorization is a model-based collaborative technique for recommending new items to the users. Results: Experimental results on two real-world LBSNs showed that PFM consistently outperforms PMF. This is because the technique is based on gamma distribution to the model user and item matrix. Using gamma distribution is reasonable for check-in frequencies which are all positive in real datasets. However, PMF is based on Gaussian distribution that can allow negative frequency values as well. Conclusion: The motive of the work is to identify the best technique for recommending locations with the highest accuracy and allow users to choose from a plethora of available locations; the best and interesting location based on the individual’s profile. Originality: A rigorous analysis of Probabilistic Matrix Factorization techniques has been performed on popular LBSNs and the best technique for location recommendation has been identified by comparing the accuracy viz RMSE, Precision@N, Recall@N, F1@N of different models. Limitations: User’s contextual information like demographics, social and geographical preferences have not been considered while evaluating the efficiency of probabilistic matrix factorization techniques for POI Recommendations.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67604965","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}
Pub Date : 2020-10-30DOI: 10.16925/2357-6014.2020.03.03
Lesly Nathalie López Valiente
Este artículo presenta los resultados de la investigación "Transformación de suelos a veces procesos de fusión en el laboratorio" con respecto al cambio de las propiedades físicas y mecánicas de los suelos finos, especialmente los suelos arcillosos afectados a procesos de calentamiento a diferentes temperaturas, buscando así ampliar el conocimiento de esto. proceso como una alternativa de estabilización.
{"title":"Evaluation of the mechanical behavior of soils subject to laboratory fusion processes","authors":"Lesly Nathalie López Valiente","doi":"10.16925/2357-6014.2020.03.03","DOIUrl":"https://doi.org/10.16925/2357-6014.2020.03.03","url":null,"abstract":"Este artículo presenta los resultados de la investigación \"Transformación de suelos a veces procesos de fusión en el laboratorio\" con respecto al cambio de las propiedades físicas y mecánicas de los suelos finos, especialmente los suelos arcillosos afectados a procesos de calentamiento a diferentes temperaturas, buscando así ampliar el conocimiento de esto. proceso como una alternativa de estabilización.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67604713","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}
Pub Date : 2020-09-02DOI: 10.16925/2357-6014.2020.03.09
David Eduardo Aparicio Plazas, Diego Hernando Ângulo Florez, Edna Carolina Cipagauta Esquivel, Diego Alejandro Barragán Currea, Rosmy Johana Zipa Romero
Introduction: This article presents the results of the research carried out from January 2018 to December 2019, in an institution providing third-level health services (IPHS), located in Tunja (Boyacá), in eastern central Colombia. Problem: There are various difficulties related to the management of waste produced by the IPHS; Irresponsible practices cause the spread of infections, which have repercussions in critical situations locally, regionally and internationally. Objective: To evaluate the management of hospital, hazardous and similar waste (HCWM), carried out by an IPHS, and to formulate strategies for its improvement. Methodology: The research was carried out in three (3) stages: data collection (through inspections and weighing of waste), data analysis (for the qualification and quantification of the waste), and finally, some guidelines for its proper management were proposed, based on the context of the organization. Results: The IPHS generated 397.6 tonnes of hospital, hazardous and similar waste (MW). Biohazard waste (BW) predominated over the others (54.11%), followed by usable non-hazardous waste - UNHW (41.53%) and chemical and pharmaceutical waste - CPW (4, 37%). Conclusion: The entity complies with the main requirements of the national government, identifying good utilization and biosecurity practices; however, under diagnosis and with the implementation of guidelines emanating from research, it is possible to optimize procedures. Originality: The guidelines and activities for the separation, use and internal collection of waste within an IPHS were observed and then interrelated with the services provided and their resources. This work could be a guideline for related institutions. Limitations: The article focuses on the internal and non-external management of MW.
{"title":"Diagnosis Of Hospital, Hazardous and Similar Waste Management of an Institution Providing Health Services – IPHS","authors":"David Eduardo Aparicio Plazas, Diego Hernando Ângulo Florez, Edna Carolina Cipagauta Esquivel, Diego Alejandro Barragán Currea, Rosmy Johana Zipa Romero","doi":"10.16925/2357-6014.2020.03.09","DOIUrl":"https://doi.org/10.16925/2357-6014.2020.03.09","url":null,"abstract":"Introduction: This article presents the results of the research carried out from January 2018 to December 2019, in an institution providing third-level health services (IPHS), located in Tunja (Boyacá), in eastern central Colombia. \u0000Problem: There are various difficulties related to the management of waste produced by the IPHS; Irresponsible practices cause the spread of infections, which have repercussions in critical situations locally, regionally and internationally. \u0000Objective: To evaluate the management of hospital, hazardous and similar waste (HCWM), carried out by an IPHS, and to formulate strategies for its improvement. \u0000Methodology: The research was carried out in three (3) stages: data collection (through inspections and weighing of waste), data analysis (for the qualification and quantification of the waste), and finally, some guidelines for its proper management were proposed, based on the context of the organization. \u0000Results: The IPHS generated 397.6 tonnes of hospital, hazardous and similar waste (MW). Biohazard waste (BW) predominated over the others (54.11%), followed by usable non-hazardous waste - UNHW (41.53%) and chemical and pharmaceutical waste - CPW (4, 37%). \u0000Conclusion: The entity complies with the main requirements of the national government, identifying good utilization and biosecurity practices; however, under diagnosis and with the implementation of guidelines emanating from research, it is possible to optimize procedures. \u0000Originality: The guidelines and activities for the separation, use and internal collection of waste within an IPHS were observed and then interrelated with the services provided and their resources. This work could be a guideline for related institutions. \u0000Limitations: The article focuses on the internal and non-external management of MW.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48350499","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}
Pub Date : 2020-09-01DOI: 10.16925/2357-6014.2020.03.05
Catherine Paola Avila Bayona
Introduction: This article is the result of the research work “Evaluation of the quality of the soil associated with the use of mycorrhizae in coffee plantations in the Municipality of Sasaima, Cundinamarca” carried out duringthe years 2018 and 2019 at the Universidad Libre. Problem: Several investigations report the use of mycorrhizal fungi in plant development, however, there are few studies regarding the relationship between mycorrhizae and soil quality indicators. Methodology: Four plots were evaluated, applying: 1) Control; 2) Local native mycorrhizae isolated by the authors; 3) Commercial liquid mycorrhizae; and 4) Commercial solid mycorrhizae. The samples of the rhizosphericsoils were taken and bimonthly monitoring was applied until 5 collection cycles were obtained. The physicochemical parameters, abundance of functional groups of microorganisms, and enzymatic activities ofthe soil were determined and analyzed by means of univariate and multivariate statistical analysis. Conclusion: The research hypothesis was validated since the mycorrhizae inoculation significantly increased the values of the soil quality indicators, namely organic carbon (14%), moisture (19%), phosphorus (30%), abundanceof nitrogen-fixing bacteria (5.5%), phosphate-solubilizing bacteria (7.8%), cellulolytic bacteria (9.3%), and phosphate-solubilizing fungi (2.6%). In addition, the local native mycorrhizae that were isolated by theauthors showed greater benefits than those of the commercial mycorrhizae. Originality: This research reveals the impact of mycorrhizae on the soil quality indicators over time during thefirst year of application, especially on the microbial and enzymatic parameters. Limitations: Several authors have investigated the importance of the mycorrhizae on the physicochemical parameters of the plant, and not on the microbial and enzymatic parameters of the soil.
{"title":"Soil Quality Indicators Associated With The Application Of Mycorrhizal Fungi In Coffee Plantations","authors":"Catherine Paola Avila Bayona","doi":"10.16925/2357-6014.2020.03.05","DOIUrl":"https://doi.org/10.16925/2357-6014.2020.03.05","url":null,"abstract":"Introduction: This article is the result of the research work “Evaluation of the quality of the soil associated with the use of mycorrhizae in coffee plantations in the Municipality of Sasaima, Cundinamarca” carried out duringthe years 2018 and 2019 at the Universidad Libre. \u0000Problem: Several investigations report the use of mycorrhizal fungi in plant development, however, there are few studies regarding the relationship between mycorrhizae and soil quality indicators. \u0000Methodology: Four plots were evaluated, applying: 1) Control; 2) Local native mycorrhizae isolated by the authors; 3) Commercial liquid mycorrhizae; and 4) Commercial solid mycorrhizae. The samples of the rhizosphericsoils were taken and bimonthly monitoring was applied until 5 collection cycles were obtained. The physicochemical parameters, abundance of functional groups of microorganisms, and enzymatic activities ofthe soil were determined and analyzed by means of univariate and multivariate statistical analysis. \u0000Conclusion: The research hypothesis was validated since the mycorrhizae inoculation significantly increased the values of the soil quality indicators, namely organic carbon (14%), moisture (19%), phosphorus (30%), abundanceof nitrogen-fixing bacteria (5.5%), phosphate-solubilizing bacteria (7.8%), cellulolytic bacteria (9.3%), and phosphate-solubilizing fungi (2.6%). In addition, the local native mycorrhizae that were isolated by theauthors showed greater benefits than those of the commercial mycorrhizae. \u0000Originality: This research reveals the impact of mycorrhizae on the soil quality indicators over time during thefirst year of application, especially on the microbial and enzymatic parameters. \u0000Limitations: Several authors have investigated the importance of the mycorrhizae on the physicochemical parameters of the plant, and not on the microbial and enzymatic parameters of the soil.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43828860","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}
Introduction: The bibliographic review that is presented is the result of the research “Open Innovation and Knowledge Management” developed at the Universidad Distrital Francisco José de Caldas, during the year 2019. Objective: To demonstrate a Knowledge management and Industry 4.0 model that consolidates innovation processes in Colombian organizations. Methodology: A systematic mapping of information was developed, focused on the academic databases of the publications that link the concepts of Knowledge management, Industry 4.0 and Open innovation in the period 2016-2019. Conclusions: Innovation is a key factor for organizations, in particular to achieve competitiveness. For this, it is necessary to have inter-institutional and intra-institutional knowledge management models, characterized by the decentralized exchange of information in the context of Industry 4.0. Therefore, it is necessary that the governance of an organization understand and facilitate the processes of opening and exchanging knowledge and information. Originality: This model allows for the convergence of different models of administration and organization management, which must be co-managers of resource management and human talent. Limitations: The model is developed from the literature review and from the experiences presented in these investigations, implying that a second stage is necessary for validation with experts.
{"title":"Knowledge Management and Industry 4.0 and Open Innovation","authors":"José Ignacio Palacios Osma, Fabián Leandro Moreno Salazar, Karen Natalia Morales Gómez","doi":"10.16925/2357-6014.2020.02.09","DOIUrl":"https://doi.org/10.16925/2357-6014.2020.02.09","url":null,"abstract":"Introduction: The bibliographic review that is presented is the result of the research “Open Innovation and Knowledge Management” developed at the Universidad Distrital Francisco José de Caldas, during the year 2019. \u0000Objective: To demonstrate a Knowledge management and Industry 4.0 model that consolidates innovation processes in Colombian organizations. \u0000Methodology: A systematic mapping of information was developed, focused on the academic databases of the publications that link the concepts of Knowledge management, Industry 4.0 and Open innovation in the period 2016-2019. \u0000Conclusions: Innovation is a key factor for organizations, in particular to achieve competitiveness. For this, it is necessary to have inter-institutional and intra-institutional knowledge management models, characterized by the decentralized exchange of information in the context of Industry 4.0. Therefore, it is necessary that the governance of an organization understand and facilitate the processes of opening and exchanging knowledge and information. \u0000Originality: This model allows for the convergence of different models of administration and organization management, which must be co-managers of resource management and human talent. \u0000Limitations: The model is developed from the literature review and from the experiences presented in these investigations, implying that a second stage is necessary for validation with experts.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46664767","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}
Pub Date : 2020-02-18DOI: 10.16925/2357-6014.2020.02.01
L. Corredor, Ronald Martinez
Introduction:This article is developed within the framework of the Emple-ap project, coordinated since 2018 by the Universidad Distrital Francisco José de Caldas in Bogotá. Problem:Recent graduates of higher education face a problem of employability that is affected by multiple interdependent and changing variables, actors and contexts, which makes it more complex in nature. However, the problem is usually approached from a simplistic perspective that prevents the construction of proposals that generate a high impact in practice. Objective: The objective of this research is to generate a proposal to study the problem of employability from the perspective of complex thinking. Methodology:The methodology used is based on a literature review and a panel of experts through structural analysis. Results:The predominance of the simplistic approach in the understanding of employability is made evident, being expressed in a limited set of variables and generally focused on the professional. In addition, the structural analysis makes it possible to highlight the high interdependence existing between the variables that encompass different actors and contexts. Conclusions: It is necessary to redirect the approach from which employability is studied, recognizing that the problem must be tackled globally and is in a state of constant change, in order to generate dynamic solutions that adapt to it. Originality:This research offers a first proposal to understand employability as a complex problem, emphasizing the interdependence of variables. Limitations:The presented results are too recent to make a generalization and although the proposed variables were verified in the panel, they have not yet been validated.
{"title":"Employability as a complex problem","authors":"L. Corredor, Ronald Martinez","doi":"10.16925/2357-6014.2020.02.01","DOIUrl":"https://doi.org/10.16925/2357-6014.2020.02.01","url":null,"abstract":"Introduction:This article is developed within the framework of the Emple-ap project, coordinated since 2018 by the Universidad Distrital Francisco José de Caldas in Bogotá. \u0000Problem:Recent graduates of higher education face a problem of employability that is affected by multiple interdependent and changing variables, actors and contexts, which makes it more complex in nature. However, the problem is usually approached from a simplistic perspective that prevents the construction of proposals that generate a high impact in practice. \u0000Objective: The objective of this research is to generate a proposal to study the problem of employability from the perspective of complex thinking. \u0000Methodology:The methodology used is based on a literature review and a panel of experts through structural analysis. \u0000Results:The predominance of the simplistic approach in the understanding of employability is made evident, being expressed in a limited set of variables and generally focused on the professional. In addition, the structural analysis makes it possible to highlight the high interdependence existing between the variables that encompass different actors and contexts. \u0000Conclusions: It is necessary to redirect the approach from which employability is studied, recognizing that the problem must be tackled globally and is in a state of constant change, in order to generate dynamic solutions that adapt to it. \u0000Originality:This research offers a first proposal to understand employability as a complex problem, emphasizing the interdependence of variables. \u0000Limitations:The presented results are too recent to make a generalization and although the proposed variables were verified in the panel, they have not yet been validated.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49249938","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}
Pub Date : 2020-02-17DOI: 10.16925/2357-6014.2020.02.03
N. Sánchez, Daniel Esteban Casas-Mateus, Luz Deicy Alvarado Nieto
Introduction: This article is the result of research entitled the behavior of employability indicators in university graduates, developed at the Universidad Distrital Francisco José de Caldas in 2019. Problem: The Emple-AP project promotes the creation of an observatory for labor insertion and the strengthening of employability in countries of the Pacific Alliance (PA), which particularly benefits Colombia, because one of its objectives with the PA is to overcome the socioeconomic inequality that exists among its inhabitants. Objective: To identify the relationship between employability indicators through classification methods used in Artificial Intelligence. Methodology:The indicators’ behavior description involves data pre-processing, a formal global study in statistics and a specific formal study through comparison of classification methods. Results: Descriptions of these employability indicators show characteristics of the situation in the studied population. Conclusion:Given the analysis of the classification model, it is determined that the diversity and disparity of the dataset makes the RandomTree model the most accurate in this research, finding that the system has characteristic behaviors of an adaptative complex system. Originality:Through this research, employability indicators were analyzed through data mining tools, additionally the analysis presented in this article could be replicated under particular conditions in other countries of the PA. Limitations:The information comes from the Universidad Distrital Francisco José de Caldas graduate’s office. A single source generates a limitation in the data and in the population studied.
{"title":"Behavior of employability indicators in university graduates","authors":"N. Sánchez, Daniel Esteban Casas-Mateus, Luz Deicy Alvarado Nieto","doi":"10.16925/2357-6014.2020.02.03","DOIUrl":"https://doi.org/10.16925/2357-6014.2020.02.03","url":null,"abstract":"Introduction: This article is the result of research entitled the behavior of employability indicators in university graduates, developed at the Universidad Distrital Francisco José de Caldas in 2019. \u0000Problem: The Emple-AP project promotes the creation of an observatory for labor insertion and the strengthening of employability in countries of the Pacific Alliance (PA), which particularly benefits Colombia, because one of its objectives with the PA is to overcome the socioeconomic inequality that exists among its inhabitants. \u0000Objective: To identify the relationship between employability indicators through classification methods used in Artificial Intelligence. \u0000Methodology:The indicators’ behavior description involves data pre-processing, a formal global study in statistics and a specific formal study through comparison of classification methods. \u0000Results: Descriptions of these employability indicators show characteristics of the situation in the studied population. \u0000Conclusion:Given the analysis of the classification model, it is determined that the diversity and disparity of the dataset makes the RandomTree model the most accurate in this research, finding that the system has characteristic behaviors of an adaptative complex system. \u0000Originality:Through this research, employability indicators were analyzed through data mining tools, additionally the analysis presented in this article could be replicated under particular conditions in other countries of the PA. \u0000Limitations:The information comes from the Universidad Distrital Francisco José de Caldas graduate’s office. A single source generates a limitation in the data and in the population studied.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41452581","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}
Pub Date : 2020-01-01DOI: 10.16925/2357-6014.2020.02.05
Ferney Oswaldo Peña Rey, J. E. Becerra Becerra, Angie Cristina Culma Pirabán, Faindry Julieth Rojas Farfán
Introduction: This article is a product of the research “The influence of stone aggregates of the Rodeb distribution center on the mechanical properties of the concrete used for the construction of the free trade zone of Tocancipa”, developed at the University Santo Tomas and carried out during 2017. Methodology: The use of crushed stone aggregates without quality standards, those that guarantee the resistance of commercial concrete, is a problem in the country; with the understanding that the physical properties of stone aggregates affect the physical properties of fresh concrete and hardening strength. In this study, crushed stone aggregates of a “Rodeb” collection center in Tocancipa, used for the construction of its Free Trade Zone and of technically supported aggregate types in the capital city, will be physically characterized to measure the mechanical variation in concrete of 21 and 28 MPa. Results: It was found that the “Rodeb collection” aggregates comply with the physical parameters that achieve the expected design resistance and to a greater degree than the results obtained by the certified quality aggregates. Conclusion: This project seeks to raise awareness about the variability in the physical and mechanical properties of concrete, according to the characterization of the crushed stone aggregates used. Originality: It seeks to implement a mix design in the Rodeb collection for its aggregates. Limitations: To continue with the investigation, it is necessary to carry out additional tests of physical-chemical characterization to better understand how the texture and shape of aggregates can influence the mechanic properties of concrete. Additionally, it is important to disseminate the results in the Tocancipa community.
{"title":"Influence of crushed stone aggregates from the rodeb distribution center in the mechanical properties of the concretes employed for the construction of the Tocancipá free trade zone","authors":"Ferney Oswaldo Peña Rey, J. E. Becerra Becerra, Angie Cristina Culma Pirabán, Faindry Julieth Rojas Farfán","doi":"10.16925/2357-6014.2020.02.05","DOIUrl":"https://doi.org/10.16925/2357-6014.2020.02.05","url":null,"abstract":"Introduction: This article is a product of the research “The influence of stone aggregates of the Rodeb distribution center on the mechanical properties of the concrete used for the construction of the free trade zone of Tocancipa”, developed at the University Santo Tomas and carried out during 2017. Methodology: The use of crushed stone aggregates without quality standards, those that guarantee the resistance of commercial concrete, is a problem in the country; with the understanding that the physical properties of stone aggregates affect the physical properties of fresh concrete and hardening strength. In this study, crushed stone aggregates of a “Rodeb” collection center in Tocancipa, used for the construction of its Free Trade Zone and of technically supported aggregate types in the capital city, will be physically characterized to measure the mechanical variation in concrete of 21 and 28 MPa. Results: It was found that the “Rodeb collection” aggregates comply with the physical parameters that achieve the expected design resistance and to a greater degree than the results obtained by the certified quality aggregates. Conclusion: This project seeks to raise awareness about the variability in the physical and mechanical properties of concrete, according to the characterization of the crushed stone aggregates used. Originality: It seeks to implement a mix design in the Rodeb collection for its aggregates. Limitations: To continue with the investigation, it is necessary to carry out additional tests of physical-chemical characterization to better understand how the texture and shape of aggregates can influence the mechanic properties of concrete. Additionally, it is important to disseminate the results in the Tocancipa community.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67604676","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}
Pub Date : 2020-01-01DOI: 10.16925/2357-6014.2020.02.10
Ivan Fernando Vargas Ochoa, Richard Camilo Bravo Angarita, Cesar Augusto Peña Cortes
Introduction: The present article is the product of the research "Advances in the mental control of a robotic hand", developed at the University of Pamplona in the year 2019. Problem: Currently one of the main problems presented by robotic hand prostheses is the way in which the user indicates the movements to be performed. Given this, the best results have been obtained using invasive systems. Objective: The main objective of the system is to allow a person to control the movements and / or gestures of a robotic hand using their thoughts, in such a way that the control is as natural and precise as possible. Methodology: Use is made of a non-invasive, low-cost brain-computer interface (BCI) for the generation of control system references. Results: The performance of the system is directly subject to the user's ability to recreate actions or movements in their mind; the more defined your thinking, the better the control response. Conclusion: Mind control represents a new challenge for users, but as it is used, it becomes a more natural and precise control method, offering great control possibilities to people who make daily use of robotic hand prostheses. Originality: Through this research, an alternative is formulated for the control of hand prostheses, which does not require invasive systems and has the advantage of being low cost. Limitations: Frustration, stress and external noise are factors that directly affect the performance of the system.
{"title":"Advances in the mental control of a robotic hand","authors":"Ivan Fernando Vargas Ochoa, Richard Camilo Bravo Angarita, Cesar Augusto Peña Cortes","doi":"10.16925/2357-6014.2020.02.10","DOIUrl":"https://doi.org/10.16925/2357-6014.2020.02.10","url":null,"abstract":"Introduction: The present article is the product of the research \"Advances in the mental control of a robotic hand\", developed at the University of Pamplona in the year 2019. Problem: Currently one of the main problems presented by robotic hand prostheses is the way in which the user indicates the movements to be performed. Given this, the best results have been obtained using invasive systems. Objective: The main objective of the system is to allow a person to control the movements and / or gestures of a robotic hand using their thoughts, in such a way that the control is as natural and precise as possible. Methodology: Use is made of a non-invasive, low-cost brain-computer interface (BCI) for the generation of control system references. Results: The performance of the system is directly subject to the user's ability to recreate actions or movements in their mind; the more defined your thinking, the better the control response. Conclusion: Mind control represents a new challenge for users, but as it is used, it becomes a more natural and precise control method, offering great control possibilities to people who make daily use of robotic hand prostheses. Originality: Through this research, an alternative is formulated for the control of hand prostheses, which does not require invasive systems and has the advantage of being low cost. Limitations: Frustration, stress and external noise are factors that directly affect the performance of the system.","PeriodicalId":41023,"journal":{"name":"Ingenieria Solidaria","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67604702","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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