Asok Ray

    • 6923 Citations
    • 36 h-Index
    1976 …2019
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    Research Output 1976 2019

    Article
    19 Citations (Scopus)

    Life-extending control of mechanical structures: Experimental verification of the concept

    Tangirala, S., Holmes, M., Ray, A. & Carpino, M., Jan 1 1998, In : Automatica. 34, 1, p. 3-14 12 p.

    Research output: Contribution to journalArticle

    Durability
    Plant life extension
    Systems science
    Feedforward control
    Testbeds
    3 Citations (Scopus)

    Life-extending control of reusable rocket engines

    Holmes, M., Tangirala, S. & Ray, A., Jan 1 1997, In : Journal of Guidance, Control, and Dynamics. 20, 3, p. 621-623 3 p.

    Research output: Contribution to journalArticle

    turbomachine blades
    reusable rocket engines
    Reusable rockets
    space shuttles
    service life
    14 Citations (Scopus)

    Life prediction of the thrust chamber wall of a reusable rocket engine

    Dai, X. & Ray, A., Jan 1 1995, In : Journal of Propulsion and Power. 11, 6, p. 1279-1287 9 p.

    Research output: Contribution to journalArticle

    reusable rocket engines
    Reusable rockets
    thrust chambers
    Ligaments
    Rocket engines
    92 Citations (Scopus)

    Linear unbiased state estimation under randomly varying bounded sensor delay

    Yaz, E. & Ray, A., Jan 1 1998, In : Applied Mathematics Letters. 11, 4, p. 27-32 6 p.

    Research output: Contribution to journalArticle

    Unbiased Estimation
    State Estimation
    State estimation
    Error analysis
    Feedback control
    19 Citations (Scopus)

    Measure of regular languages

    Surana, A. & Ray, A., Apr 2004, In : Demonstratio Mathematica. 37, 2, p. 485-503 19 p.

    Research output: Contribution to journalArticle

    Regular Languages
    Total ordering
    Finite State Automata
    Quantitative Evaluation
    Partially Ordered Set

    MICROCOMPUTER-BASED FAULT DETECTION USING REDUNDANT SENSORS.

    Polenta, H. P. & Ray, A., 1986, In : Conference Record - IAS Annual Meeting (IEEE Industry Applications Society). p. 1506-1511 6 p.

    Research output: Contribution to journalArticle

    Nuclear reactors
    Fault detection
    Microcomputers
    Computer hardware
    Chemical plants
    3 Citations (Scopus)

    MODELING AND SIMULATION OF A MULTICELL FLUIDIZED-BED STEAM GENERATOR.

    Ray, A., Berkowitz, D. A. & Sumaria, V. H., Jan 1 1978, In : J Energy. 2, 5, p. 269-278 10 p.

    Research output: Contribution to journalArticle

    Steam generators
    Fluidized beds
    Fluidized bed combustion
    Transient analysis
    Atmospheric pressure

    Modeling of microscope images for early detection of fatigue cracks in structural materials

    Ghalyan, N. F., Ghalyan, I. F. & Ray, A., Oct 1 2019, In : International Journal of Advanced Manufacturing Technology. 104, 9-12, p. 3899-3913 15 p.

    Research output: Contribution to journalArticle

    Crack detection
    Microscopes
    Cracks
    Support vector machines
    Polycrystalline materials

    Modeling of the planar motion of a flexible structure

    Holmes, M. S., Ray, A. & Mudgett, D. R., Jan 1 1996, In : Journal of Guidance, Control, and Dynamics. 19, 3, p. 710-713 4 p.

    Research output: Contribution to journalArticle

    Flexible Structure
    Euler-Bernoulli Beam
    Flexible structures
    Nonlinear Model
    Computer Simulation

    Modelling and analysis of a data communication protocol for integrated control of advanced aircraft

    Ayyagari, A. & Ray, A., Jun 1993, In : Computer Communications. 16, 6, p. 350-365 16 p.

    Research output: Contribution to journalArticle

    Integrated control
    Aircraft
    Network protocols
    Petri nets
    Control systems
    6 Citations (Scopus)

    Modelling and system identification of an experimental apparatus for anomaly detection in mechanical systems

    Khatkhate, A. M., Ray, A. & Keller, E., Apr 1 2007, In : Applied Mathematical Modelling. 31, 4, p. 734-748 15 p.

    Research output: Contribution to journalArticle

    Anomaly Detection
    System Identification
    Mechanical Systems
    Identification (control systems)
    Durability

    Modelling of an HTGR steam power plant

    Ray, A., Oct 1979, In : Applied Mathematical Modelling. 3, 5, p. 391-394 4 p.

    Research output: Contribution to journalArticle

    Steam power plants
    Power Plant
    Modeling
    31 Citations (Scopus)

    Modelling of power plant dynamics and uncertainties for robust control synthesis

    Weng, C. K., Ray, A. & Dai, X., Jul 1996, In : Applied Mathematical Modelling. 20, 7, p. 501-512 12 p.

    Research output: Contribution to journalArticle

    Power Plant
    Robust control
    Robust Control
    Power plants
    Synthesis
    4 Citations (Scopus)
    fault detection
    Nuclear reactors
    Fault detection
    Microcomputers
    Nuclear power plants
    74 Citations (Scopus)

    Multimodal task-driven dictionary learning for image classification

    Bahrampour, S., Nasrabadi, N. M., Ray, A. & Jenkins, W. K., Jan 2016, In : IEEE Transactions on Image Processing. 25, 1, p. 24-38 15 p., 7312977.

    Research output: Contribution to journalArticle

    Image classification
    Glossaries
    Learning algorithms
    Face recognition
    Fusion reactions
    21 Citations (Scopus)

    Multi-sensor information fusion for fault detection in aircraft gas turbine engines

    Sarkar, S., Sarkar, S., Mukherjee, K., Ray, A. & Srivastav, A., Dec 1 2013, In : Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 227, 12, p. 1988-2001 14 p.

    Research output: Contribution to journalArticle

    Information fusion
    Fault detection
    Gas turbines
    Turbines
    Aircraft
    13 Citations (Scopus)

    Navigation of autonomous vehicles for oil spill cleaning in dynamic and uncertain environments

    Jin, X. & Ray, A., Apr 3 2014, In : International Journal of Control. 87, 4, p. 787-801 15 p.

    Research output: Contribution to journalArticle

    Oil spills
    Cleaning
    Navigation
    Weathering
    Ports and harbors
    8 Citations (Scopus)

    Network Access Protocols for Real-Time Distributed Control Systems

    Ray, A., Jan 1 1988, In : IEEE Transactions on Industry Applications. 24, 5, p. 897-904 8 p.

    Research output: Contribution to journalArticle

    Distributed parameter control systems
    Control systems
    Electric power plants
    Chemical plants
    Real time control
    24 Citations (Scopus)

    Networking for Computer-Integrated Manufacturing

    Ray, A., May 1988, In : IEEE Network. 2, 3, p. 40-47 8 p.

    Research output: Contribution to journalArticle

    Office automation
    Computer integrated manufacturing
    Computer architecture
    1 Citation (Scopus)

    Neural network-based learning from demonstration of an autonomous ground robot

    Fu, Y., Jha, D. K., Zhang, Z., Yuan, Z. & Ray, A., Jun 1 2019, In : Machines. 7, 2, 24.

    Research output: Contribution to journalArticle

    Open Access
    Imitation
    Demonstrations
    Robot
    Robots
    Neural Networks
    10 Citations (Scopus)

    Neural network representation of fatigue damage dynamics

    Li, C. J. & Ray, A., Dec 1 1995, In : Smart Materials and Structures. 4, 2, p. 126-133 8 p., 009.

    Research output: Contribution to journalArticle

    Fatigue damage
    damage
    Neural networks
    Service life
    service life
    2 Citations (Scopus)
    forecasting
    alphabets
    Time series
    Probability distributions
    autoregressive moving average
    7 Citations (Scopus)

    Nonlinear control of a reusable rocket engine for life extension

    Lorenzo, C. F., Ray, A. & Holmes, M. S., Jan 1 2001, In : Journal of Propulsion and Power. 17, 5, p. 998-1004 7 p.

    Research output: Contribution to journalArticle

    reusable rocket engines
    Reusable rockets
    Plant life extension
    Rocket engines
    controllers
    5 Citations (Scopus)

    Nonlinear dynamic model of a fiuidized-bed steam generation system

    Ray, A., Berkowitz, D. A. & Sumaria, V. H., Jan 1 1980, In : Journal of Engineering for Gas Turbines and Power. 102, 1, p. 202-208 7 p.

    Research output: Contribution to journalArticle

    Dynamic models
    Steam
    Transient analysis
    Fluidized beds
    Atmospheric pressure
    15 Citations (Scopus)

    Nonlinear dynamic model of a solar steam generator

    Ray, A., Jan 1 1981, In : Solar Energy. 26, 4, p. 297-306 10 p.

    Research output: Contribution to journalArticle

    Steam generators
    Dynamic models
    Incident solar radiation
    Hydraulic models
    Steam
    6 Citations (Scopus)

    Nonlinear life-extending control of a rocket engine

    Lorenzo, C. F., Holmes, M. S. & Ray, A., Jan 1 2000, In : Journal of Guidance, Control, and Dynamics. 23, 4, p. 759-762 4 p.

    Research output: Contribution to journalArticle

    Reusable rockets
    rocket engines
    Rocket engines
    Transient analysis
    thrust chamber pressure
    3 Citations (Scopus)

    Nonlinear reinforcement schemes for learning automata

    Garcia, H. E. & Ray, A., 1990, In : Proceedings of the IEEE Conference on Decision and Control. 4, p. 2204-2207 4 p.

    Research output: Contribution to journalArticle

    Learning Automata
    Reinforcement
    Experiments
    Unstable
    Unit vector

    Objective classification of two-phase flow regimes via ultrasonic signals

    Talley, J. D., Chakraborty, S., Keller, E., Ray, A. & Kim, S., 2009, In : Transactions of the American Nuclear Society. 100, p. 734-735 2 p.

    Research output: Contribution to journalArticle

    Two phase flow
    Ultrasonics
    12 Citations (Scopus)

    Observability under recurrent loss of data

    Luck, R., Ray, A. & Halevi, Y., Jan 1 1992, In : Journal of Guidance, Control, and Dynamics. 15, 1, p. 284-287 4 p.

    Research output: Contribution to journalArticle

    aircraft control
    Aircraft control
    systems stability
    Observability
    redundancy
    5 Citations (Scopus)

    Observer-embedded L2-gain control

    Hong, B. S. & Ray, A., Jul 1 2001, In : Applied Mathematics Letters. 14, 5, p. 563-569 7 p.

    Research output: Contribution to journalArticle

    Gain control
    Observer
    Controllers
    Controller
    Hamiltonians
    1 Citation (Scopus)

    Online detection of fatigue failure via symbolic time series analysis

    Gupta, S., Ray, A. & Keller, E., 2005, In : Proceedings of the American Control Conference. 5, p. 3309-3314 6 p., ThC15.2.

    Research output: Contribution to journalArticle

    Automata theory
    Ultrasonic sensors
    Time series analysis
    Fatigue damage
    Fatigue crack propagation
    29 Citations (Scopus)

    Online fatigue damage monitoring by ultrasonic measurements: A symbolic dynamics approach

    Gupta, S., Ray, A. & Keller, E., Jun 1 2007, In : International Journal of Fatigue. 29, 6, p. 1100-1114 15 p.

    Research output: Contribution to journalArticle

    Ultrasonic measurement
    Fatigue Damage
    Symbolic Dynamics
    Fatigue damage
    Monitoring
    6 Citations (Scopus)

    On-line fault diagnosis in a nuclear reactor by sequential testing

    Ray, A., Desai, M. & Deyst, J., 1983, In : IEEE Transactions on Nuclear Science. 30, 3, p. 1850-1855 6 p.

    Research output: Contribution to journalArticle

    nuclear reactors
    Nuclear reactors
    Failure analysis
    sensors
    Sensors
    7 Citations (Scopus)

    On-line identification of language measure parameters for discrete-event supervisory control

    Wang, X., Ray, A. & Khatkhate, A. M., Jun 2005, In : Applied Mathematical Modelling. 29, 6, p. 597-613 17 p.

    Research output: Contribution to journalArticle

    Supervisory Control
    Discrete Event
    Finite automata
    Finite State Automata
    Formal languages
    1 Citation (Scopus)

    Online monitoring of fatigue crack damage for life extending control of aircraft structures

    Sastry, V. V. S. & Ray, A., Jan 1 2001, In : Proceedings of the American Control Conference. 3, p. 2363-2364 2 p.

    Research output: Contribution to journalArticle

    Aircraft
    Controllers
    Monitoring
    Structural loads
    Cyclic loads
    6 Citations (Scopus)

    ON-LINE POWER PLANT SIGNAL VALIDATION TECHNIQUE UTILIZING PARITY-SPACE REPRESENTATION AND ANALYTIC REDUNDANCY.

    Meijer, C. H., Pasquenza, J. P., Deckert, J. C., Fisher, J. L., Laning, D. B. & Ray, A., Jan 1 1981, In : Electric Power Research Institute (Report) EPRI NP. p. var paging

    Research output: Contribution to journalArticle

    Redundancy
    Power plants
    Sensors
    Steam generators
    Digital computers
    3 Citations (Scopus)

    Online recursive estimation of remaining life using ultrasonic measurements

    Singh, D. S., Gupta, S. & Ray, A., Jul 1 2012, In : Structural Health Monitoring. 11, 4, p. 413-421 9 p.

    Research output: Contribution to journalArticle

    Ultrasonic measurement
    Ultrasonics
    Fatigue
    Ultrasonic sensors
    Stochastic models
    4 Citations (Scopus)

    On modeling of integrated communication and control systems

    Liou, L. W. & Ray, A., Jan 1 1990, In : Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME. 112, 4, p. 790-794 5 p.

    Research output: Contribution to journalArticle

    telecommunication
    rays
    Communication systems
    Control systems
    time division multiplexing
    power plants
    Power plants
    36 Citations (Scopus)

    On the discriminability of keystroke feature vectors used in fixed text keystroke authentication

    Balagani, K. S., Phoha, V. V., Ray, A. & Phoha, S., May 1 2011, In : Pattern Recognition Letters. 32, 7, p. 1070-1080 11 p.

    Research output: Contribution to journalArticle

    Authentication
    Feature extraction
    Agglomeration
    Experiments
    1 Citation (Scopus)
    Formal languages
    State feedback
    9 Citations (Scopus)

    Optimal control of robot behaviour using language measure

    Wang, X., Ray, A., Lee, P. & Fu, J., Dec 1 2004, In : International Journal of Vehicle Autonomous Systems. 2, 3-4, p. 147-167 21 p.

    Research output: Contribution to journalArticle

    Robots
    Formal languages
    Finite automata
    Computational complexity
    Robotics
    1 Citation (Scopus)

    Optimal supervisory control of aircraft propulsion: A discrete event approach

    Yasar, M., Tolani, D. & Ray, A., 2005, In : Proceedings of the American Control Conference. 3, p. 1503-1508 6 p., WeC11.2.

    Research output: Contribution to journalArticle

    Aircraft propulsion
    Engines
    Controllers
    Supervisory personnel
    Condition monitoring
    24 Citations (Scopus)

    Optimal supervisory control of finite state automata

    Ray, A., Fu, J. & Lagoa, C., Aug 15 2004, In : International Journal of Control. 77, 12, p. 1083-1100 18 p.

    Research output: Contribution to journalArticle

    Finite automata
    Computational complexity
    Dynamical systems
    Polynomials
    Costs

    Optimal supervisory control of regular languages

    Ray, A., Fu, J. & Lagoa, C., Oct 2004, In : Demonstratio Mathematica. 37, 4, p. 991-1013 23 p.

    Research output: Contribution to journalArticle

    Supervisory Control
    Regular Languages
    Finite State Automata
    Optimal Control
    Optimal Policy
    16 Citations (Scopus)

    Optimization of symbolic feature extraction for pattern classification

    Sarkar, S., Mukherjee, K., Jin, X., Singh, D. S. & Ray, A., Mar 1 2012, In : Signal Processing. 92, 3, p. 625-635 11 p.

    Research output: Contribution to journalArticle

    Pattern recognition
    Feature extraction
    Time series
    Fatigue damage
    Identification (control systems)
    129 Citations (Scopus)

    Output feedback control under randomly varying distributed delays

    Ray, A., Jan 1 1994, In : Journal of Guidance, Control, and Dynamics. 17, 4, p. 701-711 11 p.

    Research output: Contribution to journalArticle

    Output Feedback Control
    Distributed Delay
    feedback control
    Feedback control
    control system
    6 Citations (Scopus)

    Output feedback linear parameter varying (LPV) L2-gain control

    Hong, B. S., Ray, A. & Yang, V., Sep 1 2003, In : Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME. 125, 3, p. 485-489 5 p.

    Research output: Contribution to journalArticle

    Gain control
    Feedback
    output
    Feedback control
    Experiments
    3 Citations (Scopus)

    Parameter-dependent L2-gain control synthesis

    Hong, B. S., Ray, A. & Yang, V., 2000, In : Proceedings of the American Control Conference. 5, p. 3697-3701 5 p.

    Research output: Contribution to journalArticle

    Gain control
    Game theory
    Feedback control
    Scheduling
    Control systems
    6 Citations (Scopus)

    Path planning in GPS-denied environments via collective intelligence of distributed sensor networks

    Jha, D. K., Chattopadhyay, P., Sarkar, S. & Ray, A., May 3 2016, In : International Journal of Control. 89, 5, p. 984-999 16 p.

    Research output: Contribution to journalArticle

    Motion planning
    Sensor networks
    Global positioning system
    Wireless networks
    Robots