Search Results - "Villarroel, Héctor"

A Novel Methodology for the Determination of Impulse Response Coefficients Applied to Transmission Line Protection Relays by Morales, John, Quizhpi, Flavio, Villarroel-Gutierrez, Hector, Munoz, Eduardo, Orduna, Eduardo, Vasquez, Ernesto

“…Impulse Response Coefficients (IRC) of digital filters is an imperative step in the development of transmission line protection relay algorithms…”
Get full text

Changes in clinical characteristics and outcomes of patients hospitalized with COVID-19 during two years of the pandemic: experience in a venezuelan hospital by Arvelo, María C, Montes de Oca, María, Sánchez-Traslaviña, Laura, Pujol, Flor H, Jaspe, Rossana C, Silva, Isabel C, Stulin, Irene, Blanco, Gabriela, Quevedo, Jennireth, Valera, Nathalia, Papa, Irene, Bacci, Santiago, de Abreu, Fátima, Villarroel, Héctor, Catari, Juan C, Lopez, José L, Moran, Brigitte, Cárdenas, Claudio, Santucci, Saverio, Viloria, José L, García, Eleonora, Gómez, Jerry, Martinelli, Antonio, Guzmán, Manuel

“…To determine changes in the clinical characteristics and in-hospital outcomes of patients hospitalized for COVID-19 in a private hospital in Caracas during two…”
Get full text

Assessment of Dynamic Voltage Support Control Schemes for Photovoltaic Generators Connected to Power Systems by Pinzon, Jaime D., Villarroel G., Hector A., Colome, D. Graciela, Molina, Marcelo G.

“…Nowadays, the trend is that modern power systems operate with high penetration of photovoltaic generation, which must provide adequate voltage support in…”
Get full text

Adaptation of the overload function in an electrical system due to entry generation, using of the overcurrent function and automatic generation disconnection - Dynamic analysis of a particular case by Villarroel-Gutierrez, Hector Alejandro, Quispe H., Juan Carlos, Orduna, Eduardo, Molina, Marcelo

“…In this work develops the thermal damage curve for 132 kV conductors in transient state with the aim to propose the overload settings implemented in the…”
Get full text

Cambios en las características clínicas y desenlaces de pacientes hospitalizados por COVID-19 durante dos años de pandemia: experiencia en un hospital venezolano by Arvelo, María C., Montes de oca, María, Sánchez-Traslaviña, Laura, Pujol, Flor H., Jaspe, Rossana C., Silva, Isabel C., Stulin, Irene, Blanco, Gabriela, Quevedo, Jennireth, Valera, Nathalia, Papa, Irene, Bacci, Santiago, De Abreu, Fátima, Villaroel, Héctor, Catari, Juan C., Lopez, José L., Moran, Brigitte, Cárdenas, Claudio, Santucci, Saverio, Viloria, José L., García, Eleonora, Gómez, Jerry, Martinelli, Antonio, Guzmán, Manuel

“…Objetivos. Determinar los cambios en las características clínicas y desenlaces intrahospitalarios de los pacientes hospitalizados por COVID-19 en un hospital…”
Get full text

Patrones de susceptibilidad antimicrobiana de bacterias gramnegativas aisladas de infecciones del tracto urinario en Venezuela: Resultados del estudio SMART 2009-2012 by Guevara, Napoleón, Guzmán, Manuel, Merentes, Altagracia, Rizzi, Adele, Papaptzikos, Juana, Rivero, Narlesky, Oranges, Carmela, Vlllarroel, Héctor, Limas, Yoxsivell

“…Introducción: La resistencia antimicrobiana de patógenos causantes de infecciones del tracto urinario (ITU) es un problema creciente, que complica su…”
Get full text

The Argentine Electrical Sector and Its Trends Toward Renewable Energies by Villarroel-Gutierrez, Hector

“…In view of the imminent massive income of renewable generation in the Argentinian System of Interconnection (Spanish acronym SADI), it is important to analyze…”
Get full text

Antimicrobial susceptibility patterns of Gram-negative bacteria isolated in urinary tract infections in Venezuela: Results of the SMART study 2009-2012 by Guevara, Napoleón, Guzmán, Manuel, Merentes, Altagracia, Rizzi, Adele, Papaptzikos, Juana, Rivero, Narlesky, Oranges, Carmela, Vlllarroel, Héctor, Limas, Yoxsivell

“…Antimicrobial resistance of pathogens causing urinary tract infection (UTI) is a growing problem, which complicates their effective treatment. Surveillance is…”
Get full text

Analysis of Dynamic Voltage Support Schemes for PV Generators Implemented in Latin America by Villarroel-Gutierrez, Hector Alejandro, Molina, Marcelo

“…The levels of renewable power, particularly PV, injected into different electrical systems in Latin America, bring with them a series of fundamental technical…”
Get full text

Analyzing Short-Circuit Current Behavior Caused by Inverter-Interfaced Renewable Energy Sources. Effects on Distance Protection by Quispe H, Juan Carlos, Villarroel-Gutierrez, Hector, Orduna, Eduardo

“…The short-circuit current behavior caused by renewable energy sources (RESs) connected to the grid through an inverter-interface is different from the behavior…”
Get full text

Incorporation of dynamic voltage support requirements in PV systems to mitigate the effects of voltage sags in distribution networks by Gutierrez, Hector A. Villarroel, Molina, Marcelo G.

“…The aim of this work is to evaluate the impact of the incorporation of dynamic voltage support and reactive power injection requirements in PV systems…”
Get full text

Analysis of voltage sags due to induction motors in distribution systems with high PV penetration by Gutierrez, Hector A. Villarroel, Molina, Marcelo G.

“…This paper examines the combination of two very usual phenomena occurring in an emerging power system, such as the Provincial Interconnected System (PIS) in…”
Get full text