2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM)最新文献

Comparison and analysis of PAPR reduction techniques in OFDMA and SC-FDMA systems OFDMA与SC-FDMA系统中PAPR降低技术的比较与分析

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014864

Viviana Montalvo, A. Reyes, M. Paredes-Paredes

引用次数: 2

Microfluidic paper-based analytical devices for reliable and low-cost point-of-care applications 用于可靠和低成本护理点应用的微流控纸基分析设备

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014906

M. Méndez, A. Calahorrano, C. Costa-Vera, Ruben Sanchez, Andrea Montero-Oleas

{"title":"Microfluidic paper-based analytical devices for reliable and low-cost point-of-care applications","authors":"M. Méndez, A. Calahorrano, C. Costa-Vera, Ruben Sanchez, Andrea Montero-Oleas","doi":"10.1109/ETCM48019.2019.9014906","DOIUrl":"https://doi.org/10.1109/ETCM48019.2019.9014906","url":null,"abstract":"Microfluidics allows analyzing small volumes of samples, which makes it an ideal technology to build a point-of-care device. Microfluidic paper-based analytical devices (μPADs) have been used on multiple applications. Paper is promising since colorimetric assays could be read with the naked eyed or a cell phone camera. Here we systematically tested several possible readers for bio-assays that use as a base a μPADs biosensors. Specifically, we tested digital imaging of an assay that produces a change of colors, imaging of a fluorescence-based assay, and an automatic scanning based on an in-house Multispectral-image Reconstruction System for colorimetric assays. We used commercial tests, both chemical and enzyme-based tests; as well as an in house test that used the emerging technology of DNA aptamers. Similarly, we evaluated the advantages and disadvantages of each setup and demonstrate how adaptable, fast, and versatile μPADs analysis can be. s. Finally, we suggest points of consideration to develop commercial point-of-care applications based on μPADs.","PeriodicalId":217788,"journal":{"name":"2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM)","volume":"183 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":"125940739","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: 1

Some factors involved in the improvement of building energy consumption: A brief review 浅谈提高建筑能耗所涉及的一些因素

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014890

Rubén Hidalgo-León, Jaqueline Litardo, Javier Urquizo, D. Moreira, Pritpal Singh, Guillermo Soriano

{"title":"Some factors involved in the improvement of building energy consumption: A brief review","authors":"Rubén Hidalgo-León, Jaqueline Litardo, Javier Urquizo, D. Moreira, Pritpal Singh, Guillermo Soriano","doi":"10.1109/ETCM48019.2019.9014890","DOIUrl":"https://doi.org/10.1109/ETCM48019.2019.9014890","url":null,"abstract":"In recent years, energy consumption in buildings is one of the fastest-growing in demand compared to others such as industry, transportation, automotive, and others. The same trend occurs with greenhouse gas emissions. HVAC and lighting systems offer thermal and visual comfort to the occupants in buildings, but these are the ones with the highest energy consumption. Many investigations are being carried out to reduce the consumption of the previously mentioned systems and other electric equipment existing in the buildings. This paper reviews some relevant works related to initiatives to reduce energy consumption in buildings such as improvements in lighting and HVAC control systems, estimation of occupancy levels through sensor networks, dimming of artificial lighting, exploitation of daylight through the control of blinds and improvement of components in air conditioning systems/heat pumps. Prediction/estimation models of energy consumption are also analyzed, which are vital tools for reducing the operating costs of the building mainly electrical energy. Besides, we establish the future challenges and trends of the analyzed technologies.","PeriodicalId":217788,"journal":{"name":"2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM)","volume":"64 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":"123909027","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: 6

Deterministic and stochastic optimization-based decision-making approaches for effectively coping with residential photovoltaic micro-systems sizing problem under net-metering schemes 基于确定性和随机优化的决策方法有效应对净计量方案下的住宅光伏微系统规模问题

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014869

Mauricio Muñiz Soria, P. Vasquez

{"title":"Deterministic and stochastic optimization-based decision-making approaches for effectively coping with residential photovoltaic micro-systems sizing problem under net-metering schemes","authors":"Mauricio Muñiz Soria, P. Vasquez","doi":"10.1109/ETCM48019.2019.9014869","DOIUrl":"https://doi.org/10.1109/ETCM48019.2019.9014869","url":null,"abstract":"Decentralized generation has gained importance in the energy industry since auto-consumption with renewable resources nowadays exhibits attractive costs. In this sense, photovoltaic generation micro-systems are a promising technology. This work faces the problem of finding the optimal capacity of the photovoltaic (PV) micro-system to be installed by a residential customer –which at the same time is connected to the public grid-, and it is able to compensate the public power electricity consumption through self-supply, with PV generation. In this sense, two approaches are proposed in this paper. The deterministic approach assumes all input variables are known with certainty and focuses on matching the expected demand with an estimated PV generation. Starting from this deterministic perspective, the stochastic approach uses a Particle Swarm Optimization (PSO) algorithm to obtain the most likely capacity of the PV power micro-system which will match consumption with generation during an established time period, while uncertain input variables are randomly modeled by means of probability distribution functions within a Monte Carlo (MC) technique. Temperature and irradiance are considered as random variables. Optimal PV power is obtained in a proposed study case, where net measured energy resulting from the optimization process reaches about 0.0003 kWh during one day. In addition, the levelized cost of energy is calculated. It shows the benefit of PV energy whose cost (0.078 US$/kWh) is lower than the nominal cost considering distributor rates. The results are successfully tested through an energy management system (EMS) developed to validate the proposed methodology.","PeriodicalId":217788,"journal":{"name":"2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM)","volume":"74 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":"123330565","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

Methodology for Assessment and Improvement of Long-Term Voltage Stability of Electric Power Systems 电力系统长期电压稳定性的评估与改进方法

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014874

Wilson Sánchez, Nelson Granda, F. Quilumba

引用次数: 0

On the design of silicon Mach-Zehnder interferometers for the C-band c波段硅Mach-Zehnder干涉仪的设计

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014907

Roberto Alejandro Larrea-Luzuriaga, A. Gutiérrez, P. Sanchis

引用次数: 0

Poly(vinyl alcohol) (PVA) in hydrogels, a molecular perspective 聚乙烯醇(PVA)在水凝胶中的分子研究

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014900

Ana Cadena-Nogales, S. M. Oña, J. Á. Barreto, Marco Leon Dunia, M. Méndez, Daniela Viteri

{"title":"Poly(vinyl alcohol) (PVA) in hydrogels, a molecular perspective","authors":"Ana Cadena-Nogales, S. M. Oña, J. Á. Barreto, Marco Leon Dunia, M. Méndez, Daniela Viteri","doi":"10.1109/ETCM48019.2019.9014900","DOIUrl":"https://doi.org/10.1109/ETCM48019.2019.9014900","url":null,"abstract":"One of the main goals in the field of regenerative medicine is the construction of complex 3D scaffolds that can repair damaged tissue. The polymer chosen for this study is poly(vinyl) alcohol (PVA), widely used in tissue engineering [1]. PVA can be tailored for mechanical properties and has high-performance degradation kinetics. Its morphology and shape can be easily manipulated to improve vascular conduction and tissue induction. PVA is an excellent candidate for the manufacture of hydrogels with high tissue repair capacity and low cytotoxicity. We studied the water-polymer interaction of the material using a molecular dynamics (MD) approach for the calculation of solvation free energy and other parameters. For the modeling and data analysis, we used the high-performance computational software, Gromacs. Hydrogels were prepared at 10, 20, and 35 WT PVA. The hydrogel morphology and pore size were analyzed by SEM. Pore diameter tended to be larger when swelling in water than in PBS. The end-to-end distance of the MD simulated 30-mer was found to be larger in pure water than in the presence of ions. The trend can partially explain the experimental results of pore size. We also found an important change in solvation free energy when the polymer changes from an open to a closed conformation in water.","PeriodicalId":217788,"journal":{"name":"2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM)","volume":"48 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":"132199043","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

Nonlinear AVR Control Algorithm for Synchronous Generator Using OPAL-RT 基于OPAL-RT的同步发电机非线性AVR控制算法

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014879

Francisco A. Torres, Esteban Aimacana, Fernando Vaca-Urbano, S. Falcone, J. Rengifo

引用次数: 1

Controller Based on Null Space and Sliding Mode (NSB-SMC) for Bidirectional Teleoperation of Mobile Robots Formation in an Environment with Obstacles 基于零空间滑模(NSB-SMC)的障碍物环境下移动机器人编队双向遥操作控制器

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014899

P. Leica, Juan Balseca, Dario Cabascango, D. Chávez, Gabriela M. Andaluz, V. Andaluz

{"title":"Controller Based on Null Space and Sliding Mode (NSB-SMC) for Bidirectional Teleoperation of Mobile Robots Formation in an Environment with Obstacles","authors":"P. Leica, Juan Balseca, Dario Cabascango, D. Chávez, Gabriela M. Andaluz, V. Andaluz","doi":"10.1109/ETCM48019.2019.9014899","DOIUrl":"https://doi.org/10.1109/ETCM48019.2019.9014899","url":null,"abstract":"This work presents a control approach for the problem of formation of mobile robots based on null spaces and sliding mode (NSB-SMC), using a bidirectional teleoperation with force feedback with a haptic device in a semi-structured environment with static and dynamic obstacles. The NSB-SMC algorithm includes a sliding mode control scheme (SMC) to improve robustness with respect to a null space-based controller with a type PID (NSB-PID). The tasks to achieve are to maintain the formation, posture and at the same time the avoidance of obstacles within a formation of mobile robots. The algorithm of static and dynamic obstacle avoidance base on the method of potential fields; and force feedback for the human operator is performed through a Gaussian zone that generates a force of repulsion in the presence of obstacles. Moreover, a haptic device allows interpreting the intention of the user applying the criterion of mechanical impedance. General control system stability is analyzed through the Lyapunov theory. Finally, the novel NSB-SMC algorithm and the NSB-PID controller are compared, demonstrating better performance in the proposed scheme.","PeriodicalId":217788,"journal":{"name":"2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM)","volume":"39 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":"121108235","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

10 Gb/s Non-Coherent DPSK PON for Next Generation Networks, BER performance 用于下一代网络的10gb /s非相干DPSK PON, BER性能

2019 IEEE Fourth Ecuador Technical Chapters Meeting (ETCM) Pub Date : 2019-11-01 DOI: 10.1109/ETCM48019.2019.9014863

G. Arévalo, Daniel Cárdenas, Rumi Cachimuel, Lenin Rivadeneira

引用次数: 1