2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)最新文献_第4页

Nonlinear Feedback Control in a Back-to-Back Topology under Distorted Grid Voltage 电网电压畸变下背靠背拓扑的非线性反馈控制

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8988060

Marcos L. Andreu, Diego Zúñiga, J. Rohten, E. Rubio, F. Pereira, M. Oviedo, José J. Silva

引用次数: 0

A Brief Tutorial on Quadratic Stability of Linear Parameter-Varying Model for Biomathematical Systems 生物数学系统线性变参模型的二次稳定性简介

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8988071

R. Lobo, J. M. Palma, C. F. Morais, L. Carvalho, M. E. Valle, C. L. F. Ricardo Oliveira

{"title":"A Brief Tutorial on Quadratic Stability of Linear Parameter-Varying Model for Biomathematical Systems","authors":"R. Lobo, J. M. Palma, C. F. Morais, L. Carvalho, M. E. Valle, C. L. F. Ricardo Oliveira","doi":"10.1109/CHILECON47746.2019.8988071","DOIUrl":"https://doi.org/10.1109/CHILECON47746.2019.8988071","url":null,"abstract":"Many biological phenomena are investigated using models formulated in terms on nonlinear differential equations and, in general, the global stability is assured point-to-point by Lyapunov’s theory. However, many times the stability analysis becomes a hard task due to the complex interactions between variables and parameters. Furthermore, when some parameters vary over time, it is not possible to employ the conventional methods of stability analysis regarding linear time-invariant (LTI) theory. However, several of those nonlinear models can be rewritten as linear systems with time-varying parameters lying inside bounded and known intervals for which there exist in the control theory literature convex optimization procedures based on linear matrix inequality (LMI) conditions to test the asymptotic stability. Knowing that the Robust LMI Parser (ROLMIP) and YALMIP are openly distributed toolboxes for MATLAB® that allow easy programming of LMI conditions for systems with uncertain (possibly time-varying) parameters, this paper presents a implementation tutorial of a local stability analysis methodology that can be applied in linear parameter varying (LPV) models of biomathematical systems. A numerical example based on infectious disease is investigated.","PeriodicalId":223855,"journal":{"name":"2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127837538","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}

引用次数: 2

Flag Based All Digital Timing Recovery 基于标志的全数字定时恢复

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8987987

Daniel Cárdenas, Germán Arévalo

引用次数: 1

Implementation of Predictive Control in a Three-Phase Neutral Point Clamped Inverter 三相中性点箝位逆变器预测控制的实现

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8987536

R. Pérez-Guzmán, F. Herrera, M. Rivera, J. Riveros, P. Wheeler

引用次数: 0

Development of a Simulator for the Study of Path Planning of An Autonomous Surface Vehicle in Lake Environments 湖泊环境下自主地面车辆路径规划仿真系统的研制

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8987711

Federico Peralta, M. Arzamendia, D. Gregor, Kevin Cikel, Maira Santacruz, D. Reina, S. Toral

{"title":"Development of a Simulator for the Study of Path Planning of An Autonomous Surface Vehicle in Lake Environments","authors":"Federico Peralta, M. Arzamendia, D. Gregor, Kevin Cikel, Maira Santacruz, D. Reina, S. Toral","doi":"10.1109/CHILECON47746.2019.8987711","DOIUrl":"https://doi.org/10.1109/CHILECON47746.2019.8987711","url":null,"abstract":"Path planning is a relevant topic in robotics research because it allows an autonomous vehicle to find a collision-free route. Local path planning is important because it copes with the changing conditions in a dynamic environment. The Autonomous Surface Vehicles (ASV) are a type of vehicles that have been studied in the last 25 years, and also in many applications requires a local path planning for collision avoidance. Before facing the obstacles of deploying in real vehicles or hardware it is important to test different techniques in a simulator. This work presents the development of a simulator for an autonomous surface vehicle after evaluating two possible frameworks that could act as a base platform, the Robotarium and the Matlab robotics toolbox with the robotics operating system. A developed simulator is then tailored to the case of the Ypacarai Lake and some tests were carried out to follow a set of waypoints in this environment. One additional feature of the simulator is that the waypoints are set using Voronoi graphs.","PeriodicalId":223855,"journal":{"name":"2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126704968","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}

引用次数: 3

Residual Generator for Markovian Jump Linear Systems 马尔可夫跳变线性系统的残差发生器

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8987671

L. Carvalho, J. M. Palma, O. Costa

引用次数: 0

Automated Menu Recommendation System Focused on Clinical Nutrition 专注于临床营养的自动菜单推荐系统

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8988061

D. Rubilar, A. Aguilera

{"title":"Automated Menu Recommendation System Focused on Clinical Nutrition","authors":"D. Rubilar, A. Aguilera","doi":"10.1109/CHILECON47746.2019.8988061","DOIUrl":"https://doi.org/10.1109/CHILECON47746.2019.8988061","url":null,"abstract":"The nutritional status of a person describes its situation with respect to the intake and physiological adaptation after the consumption of nutrients. Having a good nutritional status is crucial in both prevention and treatment of diseases, in order to reach a good quality of life. The process of elaborating and providing nutritional minutes (menus) to patients, is a task that a nutritionist usually performs manually for each one of his patients. Currently, the use of computer platforms has taken increasing prominence in the area of health. The case of Chile is not an exception, since information systems have been designed to support the correct and fair administration of health of the population. The adoption of programs and guidelines in this regard are parts of government policy as evidenced by programs such as “Healthy Living Choose” and “Healthy Life” of the Ministry of Health, among others. This paper proposes the implementation of a web application with the integration of knowledge on nutrition modelled from a knowledge base being the basis of the recommendation system. This application serves as a tool to support and aid to nutritionists making effectively their work when generating the nutritional minutes considering multiple factors in decision making. Methodologies of systems development and knowledge engineering were used. The system is implemented and tests of components, integration and acceptance have been successfully executed.","PeriodicalId":223855,"journal":{"name":"2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116142689","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}

引用次数: 0

Effects of speed saturation in a predecessor-following vehicle platoon 前任-跟随车辆队列中速度饱和的影响

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8988051

Antonia E. Murillo, Francisco J. Vargas, A. Peters

引用次数: 2

Preliminary study of the relation between the content of cadmium and the hyperspectral signature of organic cocoa beans 有机可可豆镉含量与高光谱特征关系的初步研究

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8987991

K. Checa, M. Gamarra, J. Soto, W. Ipanaqué, G. L. Rosa

{"title":"Preliminary study of the relation between the content of cadmium and the hyperspectral signature of organic cocoa beans","authors":"K. Checa, M. Gamarra, J. Soto, W. Ipanaqué, G. L. Rosa","doi":"10.1109/CHILECON47746.2019.8987991","DOIUrl":"https://doi.org/10.1109/CHILECON47746.2019.8987991","url":null,"abstract":"The contamination of soils by heavy metals is a current problem for agricultural production. Rapid access and reliability to heavy metal concentration such as cadmium is crucial for international trade. In the present study, visible and near infrared (VIS-NIR) spectroscopy, combined with linear and statistical methods, were used to predict the cadmium concentration of organic cocoa bean samples. Partial Least Square Regression (PLSR) and Support Vector Regression (SVR) were implemented to estimate the content of this heavy metal from hyperspectral imaging and chemical analysis. Competitive Adaptive Reweighted Sampling Method (CARS) and Jackknife method were used for selecting optimal wavelength. The SVR model performed satisfactorily with the use of 45 resulting wavelengths from optimization using CARS and the Jackknife method, with an adjusted coefficient for the test R2 of 0.9401 and an RMSEP of 0.2594. Based on the results, it was concluded that VIS-NIR spectroscopy combined with CARS-Jackknife methods seems to be a fast and effective alternative to classical methods for predicting the concentration of cadmium in organic cocoa beans.","PeriodicalId":223855,"journal":{"name":"2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122946032","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}

引用次数: 2

Ecuadorian mass media on Twitter during the 30-S 20世纪30年代厄瓜多尔大众媒体上的推特

2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON) Pub Date : 2019-11-01 DOI: 10.1109/CHILECON47746.2019.8987710

C. M. C. Ludeña, J. Bravo-Torres, P. E. Vintimilla-Tapia, E. F. Ordóñez-Morales, Gabriel A. León-Paredes, Pablo L. Gallegos-Segovia

{"title":"Ecuadorian mass media on Twitter during the 30-S","authors":"C. M. C. Ludeña, J. Bravo-Torres, P. E. Vintimilla-Tapia, E. F. Ordóñez-Morales, Gabriel A. León-Paredes, Pablo L. Gallegos-Segovia","doi":"10.1109/CHILECON47746.2019.8987710","DOIUrl":"https://doi.org/10.1109/CHILECON47746.2019.8987710","url":null,"abstract":"Internet and the massive deployment of mobile and wireless communication systems and devices are generating new digital environments that are drastically changing the way in which social ideas and debates are produced, accessed and disseminated. Online social networks are becoming the virtual public spheres by which the social and political events of this network society are being debated. Given this new digital and technological context, many researchers are questioning the processes of dissemination of the information generated into these virtual social structures and the validity of the traditional models of media influence in these environments. In this paper, we present the results of an empirical analysis of the dissemination of information on Twitter produced by two large Ecuadorian newspapers: “El Universo” (private newspaper) and “El Telégrafo” (public newspaper) during events of police insubordination on 30th September 2010. The results show that, given the restrictions imposed that day by the Ecuadorian government on the news broadcast from the private media, Twitter became on a space of diffusion and access of citizens to alternative views. In addition, it was observed that the information emitted during the 30-S by these newspapers, presented a structure of diffusion in multiple stages and multiple directions.","PeriodicalId":223855,"journal":{"name":"2019 IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131113452","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}

引用次数: 0