Pub Date : 2018-10-01DOI: 10.1109/ETCM.2018.8580294
Oscar Gonzales, A. Rosales
Dual Active Bridge (DAB) converters are efficient energy conversion systems that require robust control algorithms. The wide implementation of DAB converters in electrical applications such as power generation, power distribution and energy management shows the great potential in electrical energy conversion. The DAB converter topology consists in the interface of two single-phase power converter bridges through a high frequency transformer, which allows DAB converter to reach different power rates. DAB converters have several advantages respect to conventional electromechanical transformers, such as: electrical energy efficiency, low size and weight. This paper proposes a Sliding Mode Controller (SMC) with integral linear quadratic surface to regulate power distribution by changing the phase shift between the primary and secondary commutations of the semiconductors in each bridge. In order to test the SMC performance on robustness, load variation and reference tracking tests are applied. The SMC operation is evaluated through the criterion of the Integral of the Absolute value of the Error (IAE) and conclusions are developed from analysis of results.
{"title":"Sliding Mode Controller Based on a Linear Quadratic Integral Regulator Surface for Power Control on a Dual Active Bridge Converter","authors":"Oscar Gonzales, A. Rosales","doi":"10.1109/ETCM.2018.8580294","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580294","url":null,"abstract":"Dual Active Bridge (DAB) converters are efficient energy conversion systems that require robust control algorithms. The wide implementation of DAB converters in electrical applications such as power generation, power distribution and energy management shows the great potential in electrical energy conversion. The DAB converter topology consists in the interface of two single-phase power converter bridges through a high frequency transformer, which allows DAB converter to reach different power rates. DAB converters have several advantages respect to conventional electromechanical transformers, such as: electrical energy efficiency, low size and weight. This paper proposes a Sliding Mode Controller (SMC) with integral linear quadratic surface to regulate power distribution by changing the phase shift between the primary and secondary commutations of the semiconductors in each bridge. In order to test the SMC performance on robustness, load variation and reference tracking tests are applied. The SMC operation is evaluated through the criterion of the Integral of the Absolute value of the Error (IAE) and conclusions are developed from analysis of results.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130230141","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580267
Fabrizio Eloy Ramírez, Marco Segura-Morales, Marco E. Benalcázar
The present paper presents a Software Architecture proposal designed to provide to a “gesture recognition system” the capacity to expose its functionalities and capabilities to be consumed by any other software application with diverse purposes. In this context, the proposed architecture will provide integration and interoperability capabilities to the human-arm gesture recognition system, giving it the ability to interact with other applications. The whole solution includes different elements such as the MyoArmband device (wearable), a human-arm gesture recognition system, a communications interface, and any other practical applications which consume the functionalities of the recognition system. To demonstrate the feasibility and usefulness of the proposed architecture, two software applications have been designed and implemented, based on this architecture, which are a mouse emulator and a Tetris game.
{"title":"Design of a Software Architecture and Practical Applications to Exploit the Capabilities of a Human Arm Gesture Recognition System","authors":"Fabrizio Eloy Ramírez, Marco Segura-Morales, Marco E. Benalcázar","doi":"10.1109/ETCM.2018.8580267","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580267","url":null,"abstract":"The present paper presents a Software Architecture proposal designed to provide to a “gesture recognition system” the capacity to expose its functionalities and capabilities to be consumed by any other software application with diverse purposes. In this context, the proposed architecture will provide integration and interoperability capabilities to the human-arm gesture recognition system, giving it the ability to interact with other applications. The whole solution includes different elements such as the MyoArmband device (wearable), a human-arm gesture recognition system, a communications interface, and any other practical applications which consume the functionalities of the recognition system. To demonstrate the feasibility and usefulness of the proposed architecture, two software applications have been designed and implemented, based on this architecture, which are a mouse emulator and a Tetris game.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129179998","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580319
A. L. Cheng, H. Bier, Galoget Latorre
This paper presents the implementation of a facial-identity and -expression recognition mechanism that confirms or negates physical and/or computational actuations in an intelligent built-environment. Said mechanism is built via Google Brain’s TensorFlow (as regards facial identity recognition) and Google Cloud Platform’s Cloud Vision API (as regards facial gesture recognition); and it is integrated into the ongoing development of an intelligent built-environment framework, viz., Design-to-Robotic-Production & -Operation (D2RP&O), conceived at Delft University of Technology (TUD). The present work builds on the inherited technological ecosystem and technical functionality of the Design-to-Robotic-Operation (D2RO) component of said framework; and its implementation is validated via two scenarios (physical and computational). In the first scenario—and building on an inherited adaptive mechanism—if building-skin components perceive a rise in interior temperature levels, natural ventilation is promoted by increasing degrees of aperture. This measure is presently confirmed or negated by a corresponding facial expression on the part of the user in response to said reaction, which serves as an intuitive override / feedback mechanism to the intelligent building-skin mechanism’s decision-making process. In the second scenario—and building on another inherited mechanism—if an accidental fall is detected and the user remains consciously or unconsciously collapsed, a series of automated emergency notifications (e.g., SMS, email, etc.) are sent to family and/or care-takers by particular mechanisms in the intelligent built-environment. The precision of this measure and its execution are presently confirmed by (a) identity detection of the victim, and (b) recognition of a reflexive facial gesture of pain and/or displeasure. The work presented in this paper promotes a considered relationship between the architecture of the built-environment and the Information and Communication Technologies (ICTs) embedded and/or deployed.
{"title":"Actuation Confirmation and Negation via Facial-Identity and -Expression Recognition","authors":"A. L. Cheng, H. Bier, Galoget Latorre","doi":"10.1109/ETCM.2018.8580319","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580319","url":null,"abstract":"This paper presents the implementation of a facial-identity and -expression recognition mechanism that confirms or negates physical and/or computational actuations in an intelligent built-environment. Said mechanism is built via Google Brain’s TensorFlow (as regards facial identity recognition) and Google Cloud Platform’s Cloud Vision API (as regards facial gesture recognition); and it is integrated into the ongoing development of an intelligent built-environment framework, viz., Design-to-Robotic-Production & -Operation (D2RP&O), conceived at Delft University of Technology (TUD). The present work builds on the inherited technological ecosystem and technical functionality of the Design-to-Robotic-Operation (D2RO) component of said framework; and its implementation is validated via two scenarios (physical and computational). In the first scenario—and building on an inherited adaptive mechanism—if building-skin components perceive a rise in interior temperature levels, natural ventilation is promoted by increasing degrees of aperture. This measure is presently confirmed or negated by a corresponding facial expression on the part of the user in response to said reaction, which serves as an intuitive override / feedback mechanism to the intelligent building-skin mechanism’s decision-making process. In the second scenario—and building on another inherited mechanism—if an accidental fall is detected and the user remains consciously or unconsciously collapsed, a series of automated emergency notifications (e.g., SMS, email, etc.) are sent to family and/or care-takers by particular mechanisms in the intelligent built-environment. The precision of this measure and its execution are presently confirmed by (a) identity detection of the victim, and (b) recognition of a reflexive facial gesture of pain and/or displeasure. The work presented in this paper promotes a considered relationship between the architecture of the built-environment and the Information and Communication Technologies (ICTs) embedded and/or deployed.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125190930","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580347
Esteban Serrano Morán, Esteban Santiago Pérez Báez, Edwin Aguilar, Luis Escobar, Nicolás Pinto
Under a preamble of parallel robot platforms with a fixed base and a classic 6 DOF Stewart Gough Platform analysis, specifically on its application for flight simulators, this article contains the design and positioning simulation of a spatial disorientation simulator with the use of a modified Stewart Gough Platform, limited to 4 DOF which will restrict the ability of the upper platform for making linear x, y movements but will maintain its capability of taking any orientation and will also improve the entire system by adding a controlled and not restricted yaw rotation for recreating the accelerations produced in an aircraft during the flight in order to get the disorientation effect experienced by the pilots with physical illusions. Obtaining benefits in both, military and private training processes.
{"title":"Design of a Spatial Disorientation Simulator using a Modified Stewart-Gough Platform","authors":"Esteban Serrano Morán, Esteban Santiago Pérez Báez, Edwin Aguilar, Luis Escobar, Nicolás Pinto","doi":"10.1109/ETCM.2018.8580347","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580347","url":null,"abstract":"Under a preamble of parallel robot platforms with a fixed base and a classic 6 DOF Stewart Gough Platform analysis, specifically on its application for flight simulators, this article contains the design and positioning simulation of a spatial disorientation simulator with the use of a modified Stewart Gough Platform, limited to 4 DOF which will restrict the ability of the upper platform for making linear x, y movements but will maintain its capability of taking any orientation and will also improve the entire system by adding a controlled and not restricted yaw rotation for recreating the accelerations produced in an aircraft during the flight in order to get the disorientation effect experienced by the pilots with physical illusions. Obtaining benefits in both, military and private training processes.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125061661","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580260
Julio Lopez, Daniel Cordero-Moreno
Electric vehicles are shifting the paradigm of electrical distribution networks operation. Thus, the operation of electrical distribution networks is becoming more complex and challenging for ensuring quality, security and reliability. In this paper, the plug-in electric vehicles charging coordination on electrical distribution networks is to carried out. The plug-in electric vehicles batteries equations are modeled and embedded into a charging coordination mixed-integer second-order cone programming model. The proposed mathematical model is formulated to minimize the total operational costs of the electrical distribution networks by determining an optimal charging coordination for the plug-in electric vehicles batteries. Results of a case study based on the 136-node test system show the effectiveness of the proposed approach.
{"title":"Optimal Plug-in Electric Vehicles Charging Coordination in Electrical Distribution Networks","authors":"Julio Lopez, Daniel Cordero-Moreno","doi":"10.1109/ETCM.2018.8580260","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580260","url":null,"abstract":"Electric vehicles are shifting the paradigm of electrical distribution networks operation. Thus, the operation of electrical distribution networks is becoming more complex and challenging for ensuring quality, security and reliability. In this paper, the plug-in electric vehicles charging coordination on electrical distribution networks is to carried out. The plug-in electric vehicles batteries equations are modeled and embedded into a charging coordination mixed-integer second-order cone programming model. The proposed mathematical model is formulated to minimize the total operational costs of the electrical distribution networks by determining an optimal charging coordination for the plug-in electric vehicles batteries. Results of a case study based on the 136-node test system show the effectiveness of the proposed approach.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116409370","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580337
Carlos Toapanta, Jimmy Villafuerte, P. Cruz
To meet the academic objectives for courses related with Control Systems, it is important to have access to real educational platforms that help to extend the theory to a hands-on experience. This paper introduces the implementation of an experimental testbed used to control the orientation of a multirotor in an interactive fashion. The testbed is implemented based on the configuration of a quadcopter by restricting its ability to fly, but allowing it to rotate around its three main axes. The orientation model of a quadcopter is also presented focusing on the experimental estimation of the thrust and drag coefficients. A PID-based attitude controller is designed and discretized in order to implement it in an embedded system. Simulation results and initial experimental tests are included showing the response of the multi-rotor experimental testbed and the performance of the controller.
{"title":"3DoF Multi-Rotor Experimental Testbed for Teaching Control Systems","authors":"Carlos Toapanta, Jimmy Villafuerte, P. Cruz","doi":"10.1109/ETCM.2018.8580337","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580337","url":null,"abstract":"To meet the academic objectives for courses related with Control Systems, it is important to have access to real educational platforms that help to extend the theory to a hands-on experience. This paper introduces the implementation of an experimental testbed used to control the orientation of a multirotor in an interactive fashion. The testbed is implemented based on the configuration of a quadcopter by restricting its ability to fly, but allowing it to rotate around its three main axes. The orientation model of a quadcopter is also presented focusing on the experimental estimation of the thrust and drag coefficients. A PID-based attitude controller is designed and discretized in order to implement it in an embedded system. Simulation results and initial experimental tests are included showing the response of the multi-rotor experimental testbed and the performance of the controller.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130440407","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580287
Patricia Chato, Darío José Mendoza Chipantasi, Nancy Velasco, Sylvia Rea, Vicente Hallo, P. Constante
In this paper, we present a system for counting people on public transport. The system consists of a single camera, and it process videos obtained from the camcorder to perform an algorithm to identify and to count people using Artificial Neural Networks (ANNs). The system is implemented by Cpp language based on OpenCV. People counting is an important factor to guarantee safe road trips as transport vehicles must not exceed an established number of passengers. This research is aimed to create a technological tool that helps to comply with the Transit Law in Ecuador. We describe different processing blocks dedicated to the detection, segmentation, direction estimation, counting, and evaluation of images to present its results during the standard travel of a bus.
{"title":"Image processing and artificial neural network for counting people inside public transport","authors":"Patricia Chato, Darío José Mendoza Chipantasi, Nancy Velasco, Sylvia Rea, Vicente Hallo, P. Constante","doi":"10.1109/ETCM.2018.8580287","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580287","url":null,"abstract":"In this paper, we present a system for counting people on public transport. The system consists of a single camera, and it process videos obtained from the camcorder to perform an algorithm to identify and to count people using Artificial Neural Networks (ANNs). The system is implemented by Cpp language based on OpenCV. People counting is an important factor to guarantee safe road trips as transport vehicles must not exceed an established number of passengers. This research is aimed to create a technological tool that helps to comply with the Transit Law in Ecuador. We describe different processing blocks dedicated to the detection, segmentation, direction estimation, counting, and evaluation of images to present its results during the standard travel of a bus.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126208363","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 : 2018-10-01DOI: 10.1109/ETCM.2018.8580300
R. Medina, Ana Zeas Puga, Villie Morocho, S. Bautista
Chronic foot pain is a disease that progresses with age and has a high prevalence. Therapeutic procedures include the utilization of orthoses or insoles that are placed inside the footwear. Design of personalized insoles is a process that includes several stages. An important stage is the acquisition and analysis of footprint images. Their segmentation enables quantification of the footprint shape by estimating several indices that allow classification and diagnosis of foot morphology abnormalities. A segmentation method for footprint images using Level-Set algorithms is reported. Two area based Level-Set segmentation algorithms were applied. The first is the Chan-Vese algorithm using a global minimizer. The second is the Lankton algorithm that implements the Chan-Vese energy function using a localized minimizer and the Sparse Field Method for reducing the computational cost. Algorithms tested are accurate for segmenting the footprint images, providing an average Dice coefficient higher than 0.93. The Lankton algorithm is robust with respect to spatial variation in intensities within the footprint shape. It is also fast as the average time for segmenting one image is only 6.4 seconds.
{"title":"Level–Set Segmentation of Footprint Images Aimed at Insole Design","authors":"R. Medina, Ana Zeas Puga, Villie Morocho, S. Bautista","doi":"10.1109/ETCM.2018.8580300","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580300","url":null,"abstract":"Chronic foot pain is a disease that progresses with age and has a high prevalence. Therapeutic procedures include the utilization of orthoses or insoles that are placed inside the footwear. Design of personalized insoles is a process that includes several stages. An important stage is the acquisition and analysis of footprint images. Their segmentation enables quantification of the footprint shape by estimating several indices that allow classification and diagnosis of foot morphology abnormalities. A segmentation method for footprint images using Level-Set algorithms is reported. Two area based Level-Set segmentation algorithms were applied. The first is the Chan-Vese algorithm using a global minimizer. The second is the Lankton algorithm that implements the Chan-Vese energy function using a localized minimizer and the Sparse Field Method for reducing the computational cost. Algorithms tested are accurate for segmenting the footprint images, providing an average Dice coefficient higher than 0.93. The Lankton algorithm is robust with respect to spatial variation in intensities within the footprint shape. It is also fast as the average time for segmenting one image is only 6.4 seconds.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125259505","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 : 2018-06-28DOI: 10.1109/ETCM.2018.8580272
Patricia Acosta-Vargas, Y. Rybarczyk, J. Pérez, Mario González, Karina Jimenes, Louis Leconte, Danilo Esparza
This research is part of the development of a web platform, that allows home support in the recovery of a patient after a partial or total hip replacement operation known as arthroplasty. Currently, there is no support system for the patient to remotely perform the exercises for recovery. The application aims to reduce recovery costs as well as to provide access to health at a low cost. Therefore, it is important to have a web system accessible to all users. To achieve this parameter, and to determine if it provides information accessible to all, regardless of the physical capabilities of the users, the accessibility guidelines were applied in accordance with the Web Content Accessibility Guide (WCAG) 2.0 and Website Accessibility Evaluation Methodology 1.0. This study presents an evaluation of the website’s accessibility using automatic tools and an analysis to improve the accessibility of the platform providing elderly patients with an accessible and inclusive website. The preliminary results of our research show that the telerehabilitation platform requires improvements to comply with certain levels of web accessibility.
{"title":"Towards Web Accessibility in Telerehabilitation Platforms","authors":"Patricia Acosta-Vargas, Y. Rybarczyk, J. Pérez, Mario González, Karina Jimenes, Louis Leconte, Danilo Esparza","doi":"10.1109/ETCM.2018.8580272","DOIUrl":"https://doi.org/10.1109/ETCM.2018.8580272","url":null,"abstract":"This research is part of the development of a web platform, that allows home support in the recovery of a patient after a partial or total hip replacement operation known as arthroplasty. Currently, there is no support system for the patient to remotely perform the exercises for recovery. The application aims to reduce recovery costs as well as to provide access to health at a low cost. Therefore, it is important to have a web system accessible to all users. To achieve this parameter, and to determine if it provides information accessible to all, regardless of the physical capabilities of the users, the accessibility guidelines were applied in accordance with the Web Content Accessibility Guide (WCAG) 2.0 and Website Accessibility Evaluation Methodology 1.0. This study presents an evaluation of the website’s accessibility using automatic tools and an analysis to improve the accessibility of the platform providing elderly patients with an accessible and inclusive website. The preliminary results of our research show that the telerehabilitation platform requires improvements to comply with certain levels of web accessibility.","PeriodicalId":334574,"journal":{"name":"2018 IEEE Third Ecuador Technical Chapters Meeting (ETCM)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130578753","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：