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Bobby G. Sumpter
Researcher at Oak Ridge National Laboratory
Publications - 652
Citations - 28014
Bobby G. Sumpter is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Polymer & Graphene. The author has an hindex of 60, co-authored 619 publications receiving 23583 citations. Previous affiliations of Bobby G. Sumpter include University of Florida & Cornell University.
Papers
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A Graph Dynamical Neural Network Approach for Decoding Dynamical States in Ferroelectrics.
TL;DR: In this article , a graph dynamical neural network (DDNN) was used to capture the dynamic dependence of domain-walls on point-defects in nanoscale memory devices.
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Machine Intelligence-Centered System for Automated Characterization of Functional Materials and Interfaces.
TL;DR: In this article , an integrated, machine-intelligent experimental system which enables simultaneous dynamic tests of electrical, optical, gravimetric, and viscoelastic properties of materials under a programmable dynamic environment is described.
Posted ContentDOI
Learning in Continuous Action Space for Determination of High Dimensional Potential Energy Surfaces
Subramanian K. R. S. Sankaranarayanan,Sukriti Manna,Troy D. Loeffler,Rohit Batra,Suvo Banik,Henry Chan,Kiran Sasikumar,Michael Sternberg,Tom Peterka,Mathew J. Cherukara,Stephen K. Gray,Bobby G. Sumpter +11 more
TL;DR: A RL strategy based on decision trees that incorporates modified rewards for improved exploration, efficient sampling during playouts, and a “window scaling scheme” for enhanced exploitation is introduced to enable efficient and scalable search for continuous action space problems.
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Assembly of polyelectrolyte star block copolymers at the oil-water interface.
Jan-Michael Y. Carrillo,Zhang-Yang Chen,Uvinduni I. Premadasa,Christian Steinmetz,E. Bryan Coughlin,Benjamin Lee Doughty,Thomas P. Russell,Bobby G. Sumpter +7 more
TL;DR: In this paper , an integrated experimental and coarse-grained molecular dynamics simulation study of the star block copolymer assembly process at the oil-water interface is carried out, which is important to guide development of novel surfactants or amphiphiles for chemical transformations and separations.
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Leveraging Single Atom Dynamics to Measure the Electron-Beam-Induced Force and Atomic Potentials
Ondrej Dyck,Feng Bao,Maxim Ziatdinov,Ali Yousefzadi Nobakht,Seungha Shin,Kody J. H. Law,Artem Maksov,Bobby G. Sumpter,Rick Archibald,Stephen Jesse,Sergei V. Kalinin +10 more
TL;DR: In this paper, the authors present a mathematical model of the Bredesen Center for Interdisciplinary Research at the University of Tennessee at Chattanooga, Chattanooga, TN, USA and the Institute for Functional Imaging of Materials at Oak Ridge National Laboratory.