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Works (39)

Simultaneous control of the electron temperature and safety factor profiles in DIII-D using model-based optimal control techniques

Plasma Physics and Controlled Fusion
2025-01-31 | Journal article
DOI: 10.1088/1361-6587/ad994d
Contributors: S Morosohk; Z Wang; S T Paruchuri; T Rafiq; E Schuster
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Static actuator-sharing algorithm for concurrent control of multiple plasma properties

Plasma Physics and Controlled Fusion
2025-01-31 | Journal article
DOI: 10.1088/1361-6587/ad8ef2
Contributors: Sai Tej Paruchuri; Vincent Graber; Andres Pajares; Eugenio Schuster
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Convergence Rates of Online Critic Value Function Approximation in Native Spaces

IEEE Control Systems Letters
2024 | Journal article
DOI: 10.1109/LCSYS.2024.3417178
Contributors: Shengyuan Niu; Ali Bouland; Haoran Wang; Filippos Fotiadis; Andrew Kurdila; Andrea L’Afflitto; Sai Tej Paruchuri; Kyriakos G. Vamvoudakis
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Dynamic Actuator Allocation via Reinforcement Learning for Concurrent Plasma Control Objectives

IEEE Transactions on Plasma Science
2024 | Journal article
DOI: 10.1109/TPS.2024.3377137
Contributors: Sai Tej Paruchuri; Vincent Graber; Hassan Al Khawaldeh; Eugenio Schuster
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Rates of Convergence in a Class of Native Spaces for Reinforcement Learning and Control

IEEE Control Systems Letters
2024 | Journal article
DOI: 10.1109/LCSYS.2023.3343439
Contributors: Ali Bouland; Shengyuan Niu; Sai Tej Paruchuri; Andrew Kurdila; John Burns; Eugenio Schuster
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Nonlinear control of the minimum safety factor in tokamaks by optimal allocation of spatially moving electron cyclotron current drive

Fusion Engineering and Design
2024-10 | Journal article
DOI: 10.1016/j.fusengdes.2024.114612
Contributors: Sai Tej Paruchuri; Andres Pajares; Tariq Rafiq; Eugenio Schuster
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Control-Oriented Free-Boundary Equilibrium Solver for Tokamaks

Plasma
2024-10-23 | Journal article
DOI: 10.3390/plasma7040045
Contributors: Xiao Song; Brian Leard; Zibo Wang; Sai Tej Paruchuri; Tariq Rafiq; Eugenio Schuster
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Optimal control of the electron temperature profile in DIII-D using machine learning surrogate models

Fusion Engineering and Design
2024-09 | Journal article
DOI: 10.1016/j.fusengdes.2024.114615
Contributors: Shira Morosohk; Zibo Wang; Sai Tej Paruchuri; Tariq Rafiq; Eugenio Schuster
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Hybrid model predictive control techniques for safety factor profile and stored energy regulation while incorporating NBI constraints

Nuclear Fusion
2024-08-01 | Journal article
DOI: 10.1088/1741-4326/ad5c7f
Contributors: Brian Leard; Zibo Wang; Sai Tej Paruchuri; Eugenio Schuster; Tariq Rafiq
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Approximation of discrete and orbital Koopman operators over subsets and manifolds

Nonlinear Dynamics
2024-04 | Journal article
DOI: 10.1007/s11071-024-09340-1
Contributors: Andrew J. Kurdila; Sai Tej Paruchuri; Nathan Powell; Jia Guo; Parag Bobade; Boone Estes; Haoran Wang
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Partial Persistence of Excitation in RKHS Embedded Adaptive Estimation

IEEE Transactions on Automatic Control
2023-10 | Journal article
DOI: 10.1109/TAC.2022.3226710
Contributors: Jia Guo; Sai Tej Paruchuri; Andrew J. Kurdila
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Nonlinear control of safety factor gradient in tokamaks using spatially variable electron cyclotron current drives

Fusion Engineering and Design
2023-09 | Journal article
DOI: 10.1016/j.fusengdes.2023.113914
Contributors: Sai Tej Paruchuri; Eugenio Schuster
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Model predictive current profile control in tokamaks by exploiting spatially moving electron cyclotron current drives

Fusion Engineering and Design
2023-07 | Journal article
DOI: 10.1016/j.fusengdes.2023.113796
Contributors: Sai Tej Paruchuri; Zibo Wang; Tariq Rafiq; Eugenio Schuster
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Sufficient Conditions for Parameter Convergence Over Embedded Manifolds Using Kernel Techniques

IEEE Transactions on Automatic Control
2023-02 | Journal article
DOI: 10.1109/TAC.2022.3148716
Contributors: Sai Tej Paruchuri; Jia Guo; Andrew Kurdila
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Harmonic Analysis on Axial Turbine Blades

2022 | Book chapter
DOI: 10.1007/978-981-16-6738-1_3
Contributors: Murugappan Elango; Adithyan Annamalai; Paruchuri Sai Tej
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Kernel Methods for Regression in Continuous Time over Subsets and Manifolds

ArXiv
2022 | Journal article
WOSUID: PPRN:13558676
Contributors: Powell, Nathan; Guo, Jia; Tej Parachuri, Sai; Burns, John; Estes, Boone; Kurdila, Andrew; Kurdila, Andrew
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Adaptive estimation of external fields in reproducing kernel Hilbert spaces

International Journal of Adaptive Control and Signal Processing
2022-08 | Journal article
DOI: 10.1002/acs.3442
Contributors: Jia Guo; Michael E. Kepler; Sai Tej Paruchuri; Hoaran Wang; Andrew J. Kurdila; Daniel J. Stilwell
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Approximation of Discrete and Orbital Koopman Operators over Subsets and Manifolds

2022-08-01 | Preprint
DOI: 10.21203/rs.3.rs-1727747/v1
Contributors: Andrew J. Kurdila; Sai Tej Paruchuri; Nathan Powell; Jia Guo; Parag Bobade; Boone Estes; Haoran Wang
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Kernel center adaptation in the reproducing kernel Hilbert space embedding method

International Journal of Adaptive Control and Signal Processing
2022-07 | Journal article
DOI: 10.1002/acs.3407
Contributors: Sai Tej Paruchuri; Jia Guo; Andrew Kurdila
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Accurate Approximate Regulation of Nonlinear Delay Differential Control Systems

IEEE Conference on Decision and Control
2021 | Conference paper
DOI: 10.1109/CDC45484.2021.9683209
WOSUID: WOS:000781990300060
Contributors: Aulisa, E.; Burns, J. A.; Gilliam, D. S.; Paruchuri, S.
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Minimum Safety Factor Control in Tokamaks via Optimal Allocation of Spatially Moving Electron Cyclotron Current Drive

IEEE Conference on Decision and Control
2021 | Conference paper
DOI: 10.1109/CDC45484.2021.9683130
WOSUID: WOS:000781990300065
Contributors: Paruchuri, Sai Tej; Pajares, Andres; Schuster, Eugenio
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Output Regulation of Systems Governed by Delay Differential Equations: Approximations and Robustness

IFAC-PapersOnLine
2021 | Journal article
DOI: 10.1016/J.IFACOL.2021.06.099
WOSUID: WOS:000680565100068
Contributors: Burns, John A.; Paruchuri, Sai Tej; Schmidt, Michael
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Strictly Decentralized Adaptive Estimation of External Fields using Reproducing Kernels

ArXiv
2021 | Journal article
WOSUID: PPRN:11474713
Contributors: Guo, Jia; Kepler, Michael E.; Paruchuri, Sai Tej; Wang, Haoran; Kurdila, Andrew J.; Stilwell, Daniel J.; J. Stilwell, Daniel
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Approximations of the Reproducing Kernel Hilbert Space (RKHS) Embedding Method over Manifolds

IEEE Conference on Decision and Control
2020 | Conference paper
WOSUID: WOS:000717663401058
Contributors: Guo, Jia; Paruchuri, Sai Tej; Kurdila, Andrew J.
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Expanding the teaching of single frequency vibration absorption to broadband attenuation using subordinate oscillator arrays via fettuccine pasta

Engineering Structures
2020 | Journal article
DOI: 10.1016/J.ENGSTRUCT.2020.111201
WOSUID: WOS:000582490500017
Contributors: Paruchuri, Sai Tej; Malladi, Vijaya V. N. Sriram; Tarazaga, Pablo A.; Kurdila, Andrew J.
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Intrinsic and Extrinsic Approximation of Koopman Operators over Manifolds

IEEE Conference on Decision and Control
2020 | Conference paper
DOI: 10.1109/CDC42340.2020.9304383
WOSUID: WOS:000717663401059
Contributors: Paruchuri, Sai Tej; Guo, Jia; Kepler, Michael; Ryan, Tim; Wang, Haoran; Kurdila, Andrew J.; Stilwell, Daniel
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Partial Persistence of Excitation in RKHS Embedded Adaptive Estimation

ArXiv
2020 | Journal article
WOSUID: PPRN:11439522
Contributors: Andrew J. Kurdila; Jia Guo; Sai Tej Paruchuri
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Persistence of Excitation in Uniformly Embedded Reproducing Kernel Hilbert (RKH) Spaces

Proceedings of the American Control Conference (ACC)
2020 | Journal article
DOI: 10.23919/ACC45564.2020.9147851
WOSUID: WOS:000618079804074
Contributors: Guo, Jia; Paruchuri, Sai Tej; Kurdila, Andrew J.
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PIEZOELECTRIC SUBORDINATE OSCILLATOR ARRAYS: PERFORMANCE RECOVERY AND ROBUSTNESS TO UNCERTAINTY

ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference
2020 | Conference paper
DOI: 10.1115/DETC2019-98092
WOSUID: WOS:000519338400043
Contributors: Sterling, John; Paruchuri, Sai Tej; Tarazaga, Pablo; Vignola, Joseph; Kurdila, Andrew; Malladi, Vijaya V. N. Sriram; Ryan, Teresa
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Shaping the Frequency Response Function (FRF) of a Multi-Degree-of-Freedom (MDOF) Structure Using Arrays of Tuned Vibration Absorbers (TVA)

MECHANICS OF BIOLOGICAL SYSTEMS AND MATERIALS, VOL 6
2020 | Journal article
DOI: 10.1007/978-3-030-12684-1_33
WOSUID: WOS:000646022100033
Contributors: Neighborgall, Campbell R.; Kothari, Karan; Malladi, V. V. N. Sriram; Tarazaga, Pablo; Paruchuri, Sai Tej; Kurdila, Andrew
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Reproducing kernel Hilbert space embedding for adaptive estimation of nonlinearities in piezoelectric systems

Nonlinear Dynamics
2020-07-03 | Journal article
DOI: 10.1007/s11071-020-05812-2
Contributors: Sai Tej Paruchuri; Jia Guo; Andrew Kurdila
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Subordinate Oscillator Arrays: Physical Design and Effects of Error

2020-04-13 | Other
DOI: 10.31224/osf.io/kpv3r
Contributors: John Sterling; Sai Tej Paruchuri; Teresa Jean Ryan; Joseph Vignola; Andrew J. Kurdila
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Expanding the Teaching of Single Frequency Vibration Absorption to Broadband Attenuation using Subordinate Oscillator Arrays via Fettuccine Pasta

2020-04-11 | Other
DOI: 10.31224/osf.io/qb4up
Contributors: Sai Tej Paruchuri; Vijaya V. N. Sriram Malladi; Pablo A. Tarazaga; Andrew J. Kurdila
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Probabilistic error bounds on constraint violation for empirical-analytical Lagrangian models of motion

Nonlinear Dynamics
2019 | Journal article
DOI: 10.1007/S11071-019-05183-3
WOSUID: WOS:000487910800013
Contributors: Guo, J.; Dadashi, S.; Bender, M.; Paruchuri, S. T.; Powell, N.; Sharma, Y.; Kurdila, H.; McGlothlin, J. W.; Kurdila, A. J.
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Passive piezoelectric subordinate oscillator arrays

Smart Materials and Structures
2019-08-01 | Journal article
DOI: 10.1088/1361-665X/ab2f5a
Contributors: Sai Tej Paruchuri; John Sterling; Vijaya V N Sriram Malladi; Andrew Kurdila; Joseph Vignola; Pablo Tarazaga
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Effect of Increased Damping in Subordinate Oscillator Arrays

Journal of Physics: Conference Series
2018 | Journal article
DOI: 10.1088/1742-6596/1149/1/012006
WOSUID: WOS:000473528100006
Contributors: Sterling, John; Vignola, Joseph; Gietl, Jenna; Ryan, Teresa; Sonne, Noah; Paruchuri, Sai Tej
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ESTIMATION OF DISTRIBUTION ERRORS IN PIEZOELECTRIC SUBORDINATE OSCILLATOR ARRAYS

ASME Conference on Smart Materials, Adaptive Structures and Intelligent System
2018 | Conference paper
WOSUID: WOS:000457516400036
Contributors: Paruchuri, Sai Tej; Kurdila, Andrew; Vignola, Joseph
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Piezoelectric Composite Subordinate Oscillator Arrays and Frequency Response Shaping for Passive Vibration Attenuation

IEEE Conference on Control Technology and Applications
2017 | Conference paper
WOSUID: WOS:000426981500114
Contributors: Paruchuri, Sai Tej; Sterling, John; Kurdila, Andrew; Vignola, Joseph
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THERMODYNAMIC VARIATIONAL FORMULATIONS OF SUBORDINATE OSCILLATOR ARRAYS (SOA) WITH LINEAR PIEZOELECTRICS

ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference
2017 | Conference paper
WOSUID: WOS:000423244600068
Contributors: Paruchuri, Sai Tej; Kurdila, Andrew J.; Sterling, John; Vignola, Amelia; Judge, John; Vignola, Joe; Ryan, Teresa
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Peer review (39 reviews for 9 publications/grants)

Review activity for Annual reviews in control. (2)
Review activity for Applied sciences. (2)
Review activity for Electronics. (2)
Review activity for Fusion engineering and design. (5)
Review activity for International journal of adaptive control and signal processing. (1)
Review activity for International journal of robust and nonlinear control. (1)
Review activity for Journal of the Franklin Institute. (1)
Review activity for Nonlinear dynamics. (7)
Review activity for Nonlinear dynamics. (18)
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