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Tim Draelos has been at Sandia for over 32 years and received his Ph.D. at UNM in 1998, focusing on constructive neural networks. He has spent the last ten years conducting deep learning R&D, including work on seismic signal detection, phase identification, and event discrimination. He chaired special sessions on Machine Learning in Seismology at the 2016 and 2017 Seismological Society of America annual meetings and 2017 American Geophysical Union fall meeting. He has taught classes on machine and deep learning and was the founder and general chair of the 1st three Sandia Machine Learning and Deep Learning Workshops, starting in 2017. He has published papers in the Bulletin of the Seismological Society of America, Seismological Research Letters, and various machine learning conferences.
Tuan Ho is a Senior Member of the Technical Staff in the Geochemistry Department at Sandia National Laboratories. He earned his Bachelor of Engineering from Ho Chi Minh City University of Technology, Vietnam and his PhD from University College London, UK. His research interests include molecular interaction/properties in natural/engineering nanoporous materials related to subsurface applications: shale gas production, nuclear waste disposal, carbon dioxide capture and geological storage.
Dr. Susan Rempe is a Distinguished Member of the Technical Staff at Sandia National Labs in Albuquerque, New Mexico. She also holds Adjunct and Research Professor positions in Biology and Chemical and Biological Engineering at the University of New Mexico. Her current work focuses on theoretical studies and molecular simulations of solutions, polymers, and biomolecules. In addition to expanding our basic science understanding, insights from those studies inform synthesis of new materials for water purification, energy storage, gas (CO2) separations, new molecules for cancer treatment, and antimicrobials.
Dr. David J. Heldebrant is a Chief Scientist and Team Lead of the Separations Materials team under the Advanced Energy Systems Group in the Energy Processes and Materials Division at Pacific Northwest National Laboratory. Dr. Heldebrant joined PNNL as a post-doctoral research scientist in 2005.
Dr. Heldebrant's current research focuses on applying the principles of Green Chemistry to improve atom and energy efficiency and reduce toxicity of chemical processes and to make energy-related process more environmentally benign. Focus areas are on developing materials that can perform multiple tasks to reduce waste and improve energy efficiency in the fields of chemical separations and chemical conversions, applying these principles in areas of industrial gas separations, liquid/liquid separations and catalysis. The work focuses on the development of organic gas-separating liquids that can chemical remove CO2, SOx, and H2S from combustion, gasification or natural gas streams through applied and fundamental studies of gas absorption kinetics, thermodynamics and mechanistic studies.
Dr. Nancy Brodsky is the Manager of the Geochemistry Department at Sandia National Laboratories and Sandia’s lead for the Fossil Energy Clean Coal and Carbon Management subprogram. She received her PhD in Geophysics from the University of Colorado, and worked for industry (RE/SPEC Inc., Rapid City SD) as a project lead and geomechanics laboratory manager, primarily supporting national nuclear waste isolation programs. She joined Sandia National Laboratories in 1995 to support the Waste Isolation Pilot Plan (WIPP), Yucca Mountain, and other geoscience programs. In 2003 she joined the National Infrastructure Simulation and Analysis Center (NISAC), a program sponsored by the Department of Homeland Security. She worked with the Infrastructure Complexity R&D Group and the NISAC Fast Analysis and Simulation Team (FAST), serving as the Sandia lead for FAST and as the Sandia NISAC Deputy Project Lead. She has extensive experience working in industry and in government performing and supervising technical work in regulatory environments such as the Yucca Mountain and Waste Isolation Pilot Plant projects, as well as work for the Food and Drug Administration. She was part of a team recognized by the U.S. National Committee for Rock Mechanics (under the auspices of the National Research Council, National Academy of Sciences) with an Applied Research Award for Significant Original Contribution (1999). In 2017 she became the manager of the geochemistry department.
Mr. Dagle’s research interests lie in the area of heterogeneous catalysis and chemical process development. Currently, Mr. Dagle manages projects for the Department of Energy’s Bioenergy Technologies Office (DOE-BETO) in the area of thermochemical conversions. Research experience with multiple catalytic process applications include: steam reforming of hydrocarbons and bio-derived oxygenates for H2 production, conversion of bio-derived light oxygenates (e.g., ethanol, acetic acid) to fuels and chemicals, catalytic combustion, water-gas-shift catalysis, reactive distillation, syngas conversion technologies (e.g., synthesis of alcohols, transportation fuels, synthetic natural gas, and hydrogen), and chemical synthesis (e.g., acetic acid, olefins, alcohols). Mr. Dagle also has development experience with integrating engineered catalysts within novel reactor architectures for process intensification purpose (e.g., meso- and micro-channel technology). His work has benefited clientele in both the government and private industry arena and has resulted in numerous journal articles, book chapters, and presentations. Responsibilities include keeping current with associated R&D technology areas, developing and writing proposals, leading projects, and mentoring of junior staff and students. Mr. Dagle has authored > 30 peer reviewed publications, 6 book chapters, 10 issued U.S. patents, and 1 R&D 100 award (2014).
Guangping Xu is a senior R&D Geosciences Engineer at Sandia National Laboratories in Albuquerque, NM. Prior to this position, he worked at Schlumberger – Doll Research in Cambridge, MA and Colorado State University in Fort Collins, CO. He received PhD degree in geochemistry from Massachusetts Institute of Technology. His recent research activities include kerogen characterization, interactions between supercritical CO2 and geo-materials, and the application of machine learning in image segmentation.