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Ivan Portnoy
Researcher at Universidad del Norte, Colombia
Publications - 15
Citations - 147
Ivan Portnoy is an academic researcher from Universidad del Norte, Colombia. The author has contributed to research in topics: Computer science & Biology. The author has an hindex of 3, co-authored 9 publications receiving 86 citations.
Papers
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An improved weighted recursive PCA algorithm for adaptive fault detection
TL;DR: A novel weighted adaptive recursive fault detection technique based on Principal Component Analysis (PCA) is proposed to address the issue of the increment in false alarm rate in process monitoring schemes due to the natural, slow and normal process changes (aging), which often occurs in real processes.
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A Lachnospiraceae-dominated bacterial signature in the fecal microbiota of HIV-infected individuals from Colombia, South America
Homero San-Juan-Vergara,Eduardo E. Zurek,Nadim J. Ajami,Christian Mogollon,Mario Aguilera Peña,Ivan Portnoy,Jorge I. Vélez,Christian Cadena-Cruz,Yirys Díaz-Olmos,Leidy Hurtado-Gómez,Silvana Sanchez-Sit,Danitza Hernández,Irina Urruchurtu,Pierina Di-Ruggiero,Ella Guardo-García,Nury Torres,Oscar Vidal-Orjuela,Diego Viasus,Joseph F. Petrosino,Guillermo Cervantes-Acosta +19 more
TL;DR: An observational, cross-sectional study aimed at evaluating changes in the fecal microbiota of HIV-infected individuals from Colombia shows, for the first time, a predominantly Lachnospiraceae-based signature in HIV- infected individuals.
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Performance assessment and economic perspectives of integrated PEM fuel cell and PEM electrolyzer for electric power generation.
Rony Escobar-Yonoff,Daniel Maestre-Cambronel,Sebastián Charry,Adriana Fernanda Rincón-Montenegro,Ivan Portnoy +4 more
TL;DR: In this paper, the authors present a complete one-dimensional model to evaluate the parameters that describe the operation of a Proton Exchange Membrane (PEM) electrolyzer and PEM fuel cell.
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Dynamic Modeling of Solar Radiation Disturbances Based on a Biomimetic Cloud Shading Model
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Bibliometric Analysis of Global Trends around Hydrogen Production Based on the Scopus Database in the Period 2011–2021
Luísa do Amaral Camargo,Daniel Comas,Yulineth del Carmen Cardenas Escorcia,Anibal Alviz-Meza,Gaylord Enrique Carrillo Caballero,Ivan Portnoy +5 more
TL;DR: In this paper , a bibliometric analysis of energy production using electrolysis and taking into account the different forms of hydrogen energy production is presented, showing a growing interest in hydrogen production from electrolysis.