Johanna Fonseca

ORCID: 0000-0002-0833-4799
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About
Contact & Profiles
Research Areas
  • High voltage insulation and dielectric phenomena
  • Thermal Analysis in Power Transmission
  • Lightning and Electromagnetic Phenomena
  • Sensor Technology and Measurement Systems
  • Analytical Chemistry and Sensors
  • Maternal and Neonatal Healthcare
  • Advanced Sensor and Energy Harvesting Materials
  • Context-Aware Activity Recognition Systems
  • Infant Development and Preterm Care
  • Human Rights and Development
  • Mobile Health and mHealth Applications
  • Digital Accessibility for Disabilities
  • Electrical Fault Detection and Protection
  • Power Transformer Diagnostics and Insulation
  • Power Line Inspection Robots
  • Global Maternal and Child Health

Pontificia Universidad Católica del Ecuador
2021

Universidad Antonio Nariño
2018

American University
2013

Agência Nacional de Energia Elétrica
1984-1986

It is noted that the occurrence of fires under transmission lines responsible for a great number line outages in many countries. The insulation requirements several voltage levels were established on basis field investigations and laboratory tests fire conditions. results obtained statistics presented indicate actual AC with rated up to 500 kV, faults are mainly due conductor-to-ground short circuit at midspan or phase-to-phase circuit, depending configuration. Another problem arising from...

10.1109/61.53071 article EN IEEE Transactions on Power Delivery 1990-04-01

Force Sensing Resistors (FSRs) are manufactured from a blend of conductive nanoparticles dispersed in an insulating polymer matrix. FSRs exhibit large amounts hysteresis and drift error, but currently, great effort is placed on improving their performance through different techniques applied during sensor manufacturing. In this article, novel technique for the presented; method can be to already-manufactured sensors, which clear benefit proposed procedure. The based driving sensors with...

10.3390/electronics7080146 article EN Electronics 2018-08-14

This paper presents a statistical method to calculate the minimum safety distance for live-line maintenance. The takes into account complexity of tower gap configuration and presence lineman working at line potential. It includes inherent dispersion dielectric characteristics air gaps such as probability flashover times-to-flashover. Laboratory tests were also performed corroborate results study, checking not only performance various tools but effectiveness by-passing insulators protective...

10.1109/mper.1986.5527737 article EN IEEE Power Engineering Review 1986-04-01

This paper presents a statistical method to calculate the miniumm safety distance for live-line maintenance. The takes into account complexity of tower gap configuration and presence lineman working at line potential. It includes inherent dispersion dieletric characteristics air gaps such as probability flashover tirnes-to-flashover. Laboratory tests were also performed corroborate results study, checking not only performance various tools but effectiveness by-passing insulators protective...

10.1109/tpwrd.1986.4307959 article EN IEEE Transactions on Power Delivery 1986-01-01

Force Sensing Resistors (FSRs) are obtained by randomly dispersing conductive nanoparticles in an insulating polymer matrix. The low-profile and low-weight characteristics of FSRs have been exploited the manufacturing pressure-mapping insoles. However, exhibit low repeatability which limits extensive usage such devices certain applications that require high levels accuracy repeatability. In order to enhance performance FSRs, a custom-designed insole has manufactured from commercial FSRs....

10.1109/biorob.2018.8487226 article EN 2018-08-01

El presente ensayo analiza la inclusión de los derechos pueblos indígenas en el derecho y política internacional, marco del Derecho Internacional Derechos Humanos. objetivo tal reflexión es determinar grado implementación estándares internacionales sobre por parte Estados, particular Guatemala, respecto a programas proyectos desarrollo. Para lograr objetivo, un primer momento, se refleja evolución internacional torno al reconocimiento indígenas. Posteriormente, adecuación interno Estados...

10.18046/prec.v2.1581 article ES cc-by-nc Precedente Revista Jurídica 2013-07-12

Lightning impulse tests on long insulator strings have been carried out in an attempt to determine the strength of tower insulation EHV-UHV ranges.

10.1109/tpas.1984.318369 article EN IEEE Transactions on Power Apparatus and Systems 1984-04-01

The International Journal of Integrated Care (IJIC) is an online, open-access, peer-reviewed scientific journal that publishes original articles in the field integrated care on a continuous basis.IJIC has Impact Factor 5.120 (2020 JCR, received June 2021)The IJIC 20th Anniversary Issue was published 2021.

10.5334/ijic.icic21004 article EN cc-by International Journal of Integrated Care 2022-04-08

Background: In Ecuador, the neonatal mortality rate has increased from 4.1 to 6.0 per 1000 live births between 2014 and 2019. We aimed develop validate a health risk assessment tool for predicting reach nationwide consensus on stratified management. Methods: retrospectively analyzed all deaths registered by Ministry of Public Health 2017 in Ecuador. developed using information deceased neonates 2016, subsequently validated it 2017. Several perinatal predictors were tested. The score was...

10.54941/ahfe1002102 article EN AHFE international 2022-01-01
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