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Environmental Science and Engineering Program Seminar - Yoseline Angel and Noor Zaouri

Start Date: August 27, 2017
End Date: August 27, 2017

DATE: Sunday, August 27, 2017
TIME: 4:00 - 5:00 p.m.
LOCATION: Auditorium 0215 · between Buildings 4 & 5

SPEAKER: Yoseline Angel, Ph.D. student
TITLE: Monitoring Crop Development and Health Condition from UAV-Based Hyperspectral Imagery and Machine Learning Methods

Modern agriculture faces challenging issues related to the adoption of new practices and technologies in a sustainable way to cover the global food demand of an increasing population while wisely using resources such as soils, irrigation water, fertilizers, and pesticides, under different ecosystemic conditions. Such challenges have been addressed by implementing passive satellite, airborne and ground-based remote sensing systems for observing canopy reflectance in croplands and translating collected data through physical and statistical models, and vegetation indexes, into health and growing indicators across the various cycles of crop development. This project proposes an UAV-based hyperspectral solution for mapping physiological parameters in crops (green leaf area, chlorophyll, carotenoids, nitrogen, water content, and stress salinity) from individual to canopy level, exploiting the flexibility and robustness intrinsic to machine learning approaches and providing an operational workflow to return rapidly estimates of crop conditions over large areas at multiple scales.

Yoseline studied Cadastral Engineering and Geodesy at the District University ‘Francisco Jose de Caldas’ in Colombia. She spent 2 years as an academic researcher for the project "Integrated Illicit Crops Monitoring System", at the United Nations Office on Drugs and Crime (UNODC). In 2012, Yoseline received her MSc degree in Geomatics from the National University of Colombia (UNAL). She was a professor of remote sensing courses at the District University in 2012. Over the last 9 years, Yoseline worked as a Geographical Information System Specialist for Occidental Petroleum Corporation (OXY). In early 2016, she joined KAUST as a Ph.D. student under the supervision of Professor Matthew McCabe.


SPEAKER: Noor Zaouri, Ph.D. student
TITLE: Interfacial Interactions between Natural Organic Matter and Metal Oxides: Implications for Ceramic Membrane Filtration

In water desalination pretreatment industry, the strong reactivity of Natural Organic Matter (NOM) in different waters toward ceramic membranes leads to fouling events. Consequently, the efficiency of ceramic membranes in water treatment will be significantly reduced. Fundamental correlation between NOM and metal oxide (main constituent for ceramic membranes) is still not clear. In the current study, the interfacial interactions and the adsorption between NOM fractions (i.e., Suwannee River fulvic acid fraction and algal extracellular organic matter) and metal oxides (zirconium oxide (ZrO2), or aluminum oxide (Al2O3)) were investigated by atomic force microscopy (AFM) and controlled adsorption experiments, with the objective to complement static (AFM measurements) with dynamic (isotherm isotherm) experiments.

Noor Zaouri is a Ph.D. student in Water Desalination and Reuse Center (WDRC) under the supervision of Professor Peng Wang and co-advised by Professor Jean-Philippe Croue (Curtin University /Australia). She obtained her master from KAUST and did her Bachelor in Microbiology from King Abdul Aziz University. Her research interest is focusing on understanding the interface of varies isolated natural organic matter with metal oxides surfaces .