Santiago Caro-Zapata, Juan Pablo Vasco-Marín, Daniel Duque-Urrego, Sofía Catalina Henao-Aguirre, Jonathan Gallego-Londoño
En este estudio se desarrolló un sistema que mide la velocidad, el ángulo de giro y la fuerza de frenado en bicicletas o triciclos en modo estático, controlando la resistencia al pedaleo electromecánicamente, abriendo la posibilidad de usar el sistema en conjunto con un simulador de realidad virtual para computador, con el objetivo de ofrecer una nueva herramienta de rehabilitación para amputados de miembro inferior que usan prótesis. Se dividió el estudio en dos etapas, la primera fue una prueba de concepto implementada sobre una bicicleta, evaluando los requerimientos del sistema, las posibles soluciones, los acoples necesarios para los sensores y actuadores seleccionados con el fin de evaluar la efectividad del funcionamiento. En la segunda etapa se acopló el sistema a una bicicleta horizontal de tres ruedas mediante ajustes y mejoras, para finalmente evaluar el desempeño del sistema. Los sensores y actuadores implementados, en conjunto con los sistemas de acople apropiados, los cuales funcionaron de acuerdo con lo esperado, de manera que, con un protocolo de comunicación apropiado con un simulador, se genera una nueva alternativa de rehabilitación para amputados.
{"title":"Sistema de captura de variables cinéticas de bicicletas horizontales para simulación","authors":"Santiago Caro-Zapata, Juan Pablo Vasco-Marín, Daniel Duque-Urrego, Sofía Catalina Henao-Aguirre, Jonathan Gallego-Londoño","doi":"10.14483/22484728.17968","DOIUrl":"https://doi.org/10.14483/22484728.17968","url":null,"abstract":"En este estudio se desarrolló un sistema que mide la velocidad, el ángulo de giro y la fuerza de frenado en bicicletas o triciclos en modo estático, controlando la resistencia al pedaleo electromecánicamente, abriendo la posibilidad de usar el sistema en conjunto con un simulador de realidad virtual para computador, con el objetivo de ofrecer una nueva herramienta de rehabilitación para amputados de miembro inferior que usan prótesis. Se dividió el estudio en dos etapas, la primera fue una prueba de concepto implementada sobre una bicicleta, evaluando los requerimientos del sistema, las posibles soluciones, los acoples necesarios para los sensores y actuadores seleccionados con el fin de evaluar la efectividad del funcionamiento. En la segunda etapa se acopló el sistema a una bicicleta horizontal de tres ruedas mediante ajustes y mejoras, para finalmente evaluar el desempeño del sistema. Los sensores y actuadores implementados, en conjunto con los sistemas de acople apropiados, los cuales funcionaron de acuerdo con lo esperado, de manera que, con un protocolo de comunicación apropiado con un simulador, se genera una nueva alternativa de rehabilitación para amputados.","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46271548","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}
Angel Regueiro Gómez, Carmen Brígida Busoch Morlán, Carmenchu Regueiro Busoch, René Joaquín Díaz Martínez
The work shows the didactic experiences reached in the research formation of biomedical engineers in the Technological University of Havana (Cujae), during the development of courses (Project of Research I and II) in the Biomedical Engineering program, that contribute to the scientific and methodological development of the Work of Diploma like act of culmination of the university studies, with the integrated employment of the resources of a Learning Management System: MOODLE (Forum, Dynamic Presentations, Videos, WIKI, Tasks, Surveys, Questionnaires, etc.) and the Teaching Based in Problems (EBP), to achieve the appropriate motivation and research formation in the students from the curriculum.
{"title":"Biomedical Engineering: experiences in the research formation with MOODLE","authors":"Angel Regueiro Gómez, Carmen Brígida Busoch Morlán, Carmenchu Regueiro Busoch, René Joaquín Díaz Martínez","doi":"10.14483/22484728.17424","DOIUrl":"https://doi.org/10.14483/22484728.17424","url":null,"abstract":"The work shows the didactic experiences reached in the research formation of biomedical engineers in the Technological University of Havana (Cujae), during the development of courses (Project of Research I and II) in the Biomedical Engineering program, that contribute to the scientific and methodological development of the Work of Diploma like act of culmination of the university studies, with the integrated employment of the resources of a Learning Management System: MOODLE (Forum, Dynamic Presentations, Videos, WIKI, Tasks, Surveys, Questionnaires, etc.) and the Teaching Based in Problems (EBP), to achieve the appropriate motivation and research formation in the students from the curriculum.","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66687248","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":"Martha C. Nussbaum. The Monarchy of Fear, A philosophical look at the current political crisis. Bogotá: Editorial Planeta Colombia, 2019","authors":"Rosendo López González, Astrid Ramírez-Valencia","doi":"10.14483/22484728.16999","DOIUrl":"https://doi.org/10.14483/22484728.16999","url":null,"abstract":"Martha C. Nussbaum. The Monarchy of Fear, A philosophical look at the current political crisis. Bogotá: Editorial Planeta Colombia, 2019, 303 Pages","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44950788","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}
The empirical mode decomposition (EMD) decomposes a local and adaptive time series into a finite set of intrinsic mode functions (IMF), AM-FM signals that allow to represent a non-linear and non-stationary model with the advantage of not losing the underlying meaning. This study examines time series of sEMG measurements for a case study of healthy individuals with carpal tunnel syndrome. Due to the amount of multiple levels of detail, all around a central frequency and evoked by the number of IMFs obtained through EMD, the informational contribution of each at the intermodal and interindividual level is studied through Shannon entropy to establish a general framework of spectral study given Hilbert Huang's (HHT) transformation to remarkable degrees of information. The results show that the latest IMFs have more disordered states even when they engage in apparently regular behavior, agglomerate more time-frequency information, and in the same way, concentrate more differentiable characteristics for a process of individualization of patterns.
{"title":"Detection of relevant information in intrinsic mode functions","authors":"Roberto Sebastián Hernández Santander, Esperanza Camargo Casallas","doi":"10.14483/22484728.16434","DOIUrl":"https://doi.org/10.14483/22484728.16434","url":null,"abstract":"The empirical mode decomposition (EMD) decomposes a local and adaptive time series into a finite set of intrinsic mode functions (IMF), AM-FM signals that allow to represent a non-linear and non-stationary model with the advantage of not losing the underlying meaning. This study examines time series of sEMG measurements for a case study of healthy individuals with carpal tunnel syndrome. Due to the amount of multiple levels of detail, all around a central frequency and evoked by the number of IMFs obtained through EMD, the informational contribution of each at the intermodal and interindividual level is studied through Shannon entropy to establish a general framework of spectral study given Hilbert Huang's (HHT) transformation to remarkable degrees of information. The results show that the latest IMFs have more disordered states even when they engage in apparently regular behavior, agglomerate more time-frequency information, and in the same way, concentrate more differentiable characteristics for a process of individualization of patterns.","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41713016","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}
Ernesto Cadena-Muñoz, Luis Fernando Pedraza-Martínez, Enrique Rodŕıguez-Colina
This paper presents the results of the characterization of the attack known as the "primary user emulation" in mobile cognitive radio networks performing the implementation and testing. The tools and their configuration to carry out the attack are presented and their effects on the network are analyzed. The results show how to generate the attack with a software-defined radio equipment (SDR) using GNU-Radio and OpenBTS. The effects of the possible configurations of the attack on the network are shown, the malicious type generates constant interference on the primary or cognitive network, the selfish type allows to imitate a licensed or primary user generating interference to the primary network and inability to access the Cognitive Network while active. If the emulator's power level is fixed, the services it provides are stable. If the power is variable the services suffer intermittency. Primary user emulation is the attack that most affects the cognitive radio network so its effects are analyzed in order to propose ways of detecting or applying countermeasures.
{"title":"Primary user emulation characterization in mobile cognitive radio networks","authors":"Ernesto Cadena-Muñoz, Luis Fernando Pedraza-Martínez, Enrique Rodŕıguez-Colina","doi":"10.14483/22484728.16351","DOIUrl":"https://doi.org/10.14483/22484728.16351","url":null,"abstract":"This paper presents the results of the characterization of the attack known as the \"primary user emulation\" in mobile cognitive radio networks performing the implementation and testing. The tools and their configuration to carry out the attack are presented and their effects on the network are analyzed. The results show how to generate the attack with a software-defined radio equipment (SDR) using GNU-Radio and OpenBTS. The effects of the possible configurations of the attack on the network are shown, the malicious type generates constant interference on the primary or cognitive network, the selfish type allows to imitate a licensed or primary user generating interference to the primary network and inability to access the Cognitive Network while active. If the emulator's power level is fixed, the services it provides are stable. If the power is variable the services suffer intermittency. Primary user emulation is the attack that most affects the cognitive radio network so its effects are analyzed in order to propose ways of detecting or applying countermeasures.","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44471144","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}
Mauricio Rozo-Clavijo, C. Cortés-Hernández, Javier Alberto Olarte-Torres
Is investigated the top quark decay (t) two bodies using the spectator model. Is analyzed the decay (t→bW⁺) calculated theoretically the width of decay and decay fraction of the particle whose result is compared with the experimental data of the table Particle Data group. The model prediction on the decay process can be considered good as a first approach to this class of decay. This type of analysis is particularly important because it allows one hand, familiarize students with the decays of particles and on the other, open a space to introduce topics of particle physics in the introductory courses at university level.
{"title":"Quark decay top to two bodies","authors":"Mauricio Rozo-Clavijo, C. Cortés-Hernández, Javier Alberto Olarte-Torres","doi":"10.14483/22484728.15185","DOIUrl":"https://doi.org/10.14483/22484728.15185","url":null,"abstract":"Is investigated the top quark decay (t) two bodies using the spectator model. Is analyzed the decay (t→bW⁺) calculated theoretically the width of decay and decay fraction of the particle whose result is compared with the experimental data of the table Particle Data group. The model prediction on the decay process can be considered good as a first approach to this class of decay. This type of analysis is particularly important because it allows one hand, familiarize students with the decays of particles and on the other, open a space to introduce topics of particle physics in the introductory courses at university level.","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45254815","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}
Ernesto Jair Eguis-Eslava, Kelly Marcela Padilla-Garćıa, L. Lopez-Diaz, Jose Daniel Soto-Ortiz, R. Castillo-Sierra, Mauricio Pardo-González, C. Orozco-Henao, Elvin Arnaldo Jiménez-Matos, Ingrid Oliveros-Pantoja
This article presents the results of the analysis of the studies of the operation of a modified IEEE-13 distribution feeder, which was built to scale in the laboratory at Universidad del Norte. In this article, we show the cases of the operating regimes of the modified IEEE-13, before the different levels of wind energy penetration. The modified IEEE-13 distribution feeder was built taking into account that each of the scaled modules and their generator-load will work under the conditions of the Universidad del Norte laboratory. An experimental methodology was used to compare the results obtained in the actual scaled model with the results of the simulations in specialized programs. The conclusions of the article show the wind energy that can be injected into an electrical system with conventional power generation so that it can maintain its operation complying with the current regulatory framework.
{"title":"Distribution system with wind penetration","authors":"Ernesto Jair Eguis-Eslava, Kelly Marcela Padilla-Garćıa, L. Lopez-Diaz, Jose Daniel Soto-Ortiz, R. Castillo-Sierra, Mauricio Pardo-González, C. Orozco-Henao, Elvin Arnaldo Jiménez-Matos, Ingrid Oliveros-Pantoja","doi":"10.14483/22484728.15181","DOIUrl":"https://doi.org/10.14483/22484728.15181","url":null,"abstract":"This article presents the results of the analysis of the studies of the operation of a modified IEEE-13 distribution feeder, which was built to scale in the laboratory at Universidad del Norte. In this article, we show the cases of the operating regimes of the modified IEEE-13, before the different levels of wind energy penetration. The modified IEEE-13 distribution feeder was built taking into account that each of the scaled modules and their generator-load will work under the conditions of the Universidad del Norte laboratory. An experimental methodology was used to compare the results obtained in the actual scaled model with the results of the simulations in specialized programs. The conclusions of the article show the wind energy that can be injected into an electrical system with conventional power generation so that it can maintain its operation complying with the current regulatory framework. \u0000 \u0000 \u0000 ","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45882019","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}
This paper describes the assembling process of a quadrupedal architecture using the modular robotic system Mecabot. Several possible topologies are addressed to finally opt for a design that allows the use of an active column. Based on this, the mathematical model of the control is proposed to perform the movements of displacement, open turn and rotation. The locomotion profiles for these first two movement modalities are bio-inspired. For the rotation modality, a characteristic quadrupedal robot transition is used to allow the correct rotation execution without using a great number of degrees of freedom. The robot is tested on structured and unstructured terrains by measuring its speed in function of the movement frequency variation. For the open turn modality, the described circumference radius is measured in function of the offset variation. With the tests, the second Mecabot configuration with legs is finally obtained complementing the research work carried out for apodal configurations (snake, wheel caterpillar) and hexapod.
{"title":"Assembly and implementation of modular quadrupedal architecture","authors":"Vanessa Cruz-Carbonell, Ricardo Andrés Castillo-Estepa","doi":"10.14483/22484728.15184","DOIUrl":"https://doi.org/10.14483/22484728.15184","url":null,"abstract":"This paper describes the assembling process of a quadrupedal architecture using the modular robotic system Mecabot. Several possible topologies are addressed to finally opt for a design that allows the use of an active column. Based on this, the mathematical model of the control is proposed to perform the movements of displacement, open turn and rotation. The locomotion profiles for these first two movement modalities are bio-inspired. For the rotation modality, a characteristic quadrupedal robot transition is used to allow the correct rotation execution without using a great number of degrees of freedom. The robot is tested on structured and unstructured terrains by measuring its speed in function of the movement frequency variation. For the open turn modality, the described circumference radius is measured in function of the offset variation. With the tests, the second Mecabot configuration with legs is finally obtained complementing the research work carried out for apodal configurations (snake, wheel caterpillar) and hexapod.","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48037639","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}
This paper presents the optimization of a linear controller for a DC motor using Dynamic Back-Propagation algorithm. This algorithm is commonly employed for neural networks training; however, it can be used for optimization of a linear controller. The results show a satisfactory controller optimization.
{"title":"Optimization of a linear controller using dynamic back-propagation","authors":"Helbert Eduardo Espitia-Cuchango, Iván Machón-González, Hilario López-García","doi":"10.14483/22484728.15183","DOIUrl":"https://doi.org/10.14483/22484728.15183","url":null,"abstract":"This paper presents the optimization of a linear controller for a DC motor using Dynamic Back-Propagation algorithm. This algorithm is commonly employed for neural networks training; however, it can be used for optimization of a linear controller. The results show a satisfactory controller optimization.","PeriodicalId":34191,"journal":{"name":"Vision Electronica","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45122166","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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