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  • Augmenting learning components for safety in resource constrained autonomous robots 

    Ramakrishna, Shreyas; Dubey, Abhishek; Burruss, Matthew P.; Hartsell, Charles; Mahadevan, Nagabhushan; Nannapaneni, Saideep; Laszka, Aron; Karsai, Gabor (IEEE, 2019-05)
    Learning enabled components (LECs) trained using data-driven algorithms are increasingly being used in autonomous robots commonly found in factories, hospitals, and educational laboratories. However, these LECs do not ...
  • Spacecraft maneuver detection using optimal control theory and equations of relative motion 

    Dutta, Atri; Raquepas, Joseph B. (Univelt Inc., 2018)
    In this paper, we investigate the spacecraft maneuver detection problem by considering an optimal control formulation, in which we minimize the control effort subject to the Hill-Clohessy-Wiltshire equations of relative ...
  • Relative equations of motion using a new set of orbital elements 

    Chadalavada, Pardhasai; Dutta, Atri (Univelt Inc., 2018)
    In this paper, we consider the relative equations of spacecraft motion in terms of a new set of orbital elements that includes the components of the angular momentum in the inertial reference frame, the components of the ...
  • Performance analysis of impact-damaged laminate composite structures for quality assurance 

    Alarifi, Ibrahim M.; Movva, Venu Madhav; Rahimi-Gorji, Mohammad; Asmatulu, Ramazan (Springer Nature, 2019-08)
    Composite materials are gradually replacing metals and other materials and are being used in almost all industries with a wide range of product streams. As the requirements for composite structures for aerospace, automobile, ...
  • All-in-one, wireless, stretchable hybrid electronics for smart, connected, and ambulatory physiological monitoring 

    Kim, Yunsoung; Mahmood, Musa; Lee, Yongkuk; Kim, Nam-kyun; Kwon, Shinjae; Herbert, Robert; Kim, Donghyun; Cho, Hee-cheol; Yeo, Woon-Hong (John Wiley and Sons, 2019-07-24)
    Commercially available health monitors rely on rigid electronic housing coupled with aggressive adhesives and conductive gels, causing discomfort and inducing skin damage. Also, research-level skin-wearable devices, while ...
  • Uncertainty mitigation in feeder level power loss reduction with distributed generation 

    Manoharan, Arun Kaarthick; Hettiarachchige-Don, Anton C. Sameepa; Aravinthan, Visvakumar (IEEE, 2019)
    The grid is moving towards a system of decentralized distributed generation using a large number of small scale renewable generation resources. These resources are stochastic in nature and therefore have to be continuously ...
  • Secret-key generation in many-to-one networks: an integrated game-theoretic and information-theoretic approach 

    Chou, Remi; Yener, Aylin (IEEE, 2019-08)
    This paper considers secret-key generation between several agents and a base station that observe independent and identically distributed realizations of correlated random variables. Each agent wishes to generate the longest ...
  • Control of a flexible wing with flaps using a set theoretic active-passive framework 

    Menon, Alok N.; Chakravarthy, Animesh; Gruenwald, Benjamin C.; Yucelen, Tansel (American Institute of Aeronautics and Astronautics Inc., 2019-01-06)
    This paper develops a distributed parameter model for a multiple component structure morphing, flexible wing aircraft with a n trailing edge rigid flaps. Using a set-theoretic adaptive control approach that utilizes ...
  • Simulated flight testing of an adaptive loss-of-control avoidance pilot advisory display 

    Rafi, Melvin; Rajaram, Kiran; Moustafa, Mohamed A.; Bin Salmaan Hussain, Danial Imran; Morales, Kevin; Steck, James E.; He, Jibo; Chakravarthy, Animesh (American Institute of Aeronautics and Astronautics Inc., 2019-01-06)
    Loss-of-Control has been consistently deemed the primary contributor to air accidents globally. Systems capable of alerting pilots when impending control loss is predicted to occur have the potential to promote safer flight. ...
  • Retrofit winglets for wind turbines 

    Matheswaran, Vijay; Miller, Leonard Scott; Moriarty, Patrick J. (American Institute of Aeronautics and Astronautics Inc., 2019-01-06)
    The benefits of using winglets on wind turbines has been well documented. However, adding winglets to wind turbine blades leads to significant increases in blade root bending moments, requiring expensive structural ...
  • A non-invasive wearable readout system for bio-fluid phenomena detection 

    Mohammed, Noor; Cluff, Kim; Griffith, Jacob; Loflin, Ben (IEEE, 2019-07-25)
    This work presents a preliminary evaluation of a complete wearable radiofrequency (RF, 40 MHz bandwidth) readout device for a novel electromagnetic skin patch sensor to monitor health parameters associated with shifts in ...
  • Machine learning applied to programming quantum computers 

    Steck, James E.; Behrman, Elizabeth C.; Thompson, Nathan (American Institute of Aeronautics and Astronautics, 2019-01-06)
    We apply machine learning to “program” quantum computers, both in simulation and in experimental hardware. A major difficulty in quantum computing is developing effective algorithms that can be programmed on a quantum ...
  • Multifunctional wearable biopatch for real-time monitoring of physiological activities 

    Lee, Yongkuk; Mahmood, Musa; Kim, Yunsoung; Hafenstine, Rex W.; Yeo, Woon-Hong (SPIE, 2019-03-27)
    Heart disease is the most common cause of death, so there is a great need for non-invasive continuous monitoring of heart activities in daily life for early diagnosis and treatment. However, existing devices are not suitable ...
  • Performance and consumer satisfaction-based bi-level tariff scheme for EV charging as a VPP 

    Argade, Sachin G.; Aravinthan, Visvakumar; Buyuktahtakin, Esra; Joseph, Siny (Institution of Engineering and Technology, 2019-06-04)
    Appropriate control of the electric vehicle (EV) charging and corresponding prices can act as a virtual power plant (VPP) and support distribution system operators (DSOs). When multiple EVs are directly managed or controlled ...
  • Real-time adaptive prediction of loss-of-control margins on a fourth order aircraft 

    Rafi, Melvin; Steck, James E.; Chakravarthy, Animesh (American Institute of Aeronautics and Astronautics Inc., 2019-01-06)
    Loss-of-Control events continue to be the most significant contributing factor to air accidents worldwide. Predictive systems capable of warning pilots of impending entry into control loss have the potential to further ...
  • Design, implementation and experimental testing of an inertial sensor system to quantify wing deflection 

    Schirmer, Georg; Steck, James E.; Chakravarthy, Animesh (American Institute of Aeronautics and Astronautics Inc., 2019-01-06)
    This research investigates a novel approach of using inertial micro-electromechanical sensors in combination with a Kalman state estimator to quantify wing deflection of a highly flexible morphing wing. Motivated by NASA’s ...
  • Adaptive control system for flapping wing aircraft: A gain study on optimal control modification 

    Chandrasekaran, Balaji K.; Steck, James E. (American Institute of Aeronautics and Astronautics, Inc., 2019-01-06)
    Prior work developed a model for a bird-like flapping wing aircraft using Modified strip theory for aerodynamics, a flight dynamics model based on Newtonian equations and an adaptive flight controller. This model was ...
  • Trajectory prediction using coupled cfd-rbd with dynamic meshing 

    Sathyanarayana, Nidhi D.; Hoffmann, Klaus A. (American Institute of Aeronautics and Astronautics, Inc., 2019-01-06)
    Debris released post bird impact can cause secondary damage to downwind airplane surfaces. The debris is simplified in geometry and represented as a flat plate. A coupled CFD-RBD solver with dynamic meshing is used for ...
  • Briquetting grass and tree leaf biomass for sustainable production of future fuels 

    Khorasgani, Nasrin B.; Sengul, Ayse Busra; Asmatulu, Eylem (Springer Berlin Heidelberg, 2019-06-27)
    Biomass plays an important role in meeting the increasing global energy demand. Naturally grown grass and tree leaves are abundant and provide an inexpensive source of biomass. The handling and transportation of collected ...
  • Investigating the effects of process parameters on microalgae growth, lipid extraction, and stable nanoemulsion productions 

    Chinni, Goutham; Alarifi, Ibrahim M.; Rahimi-Gorji, Mohammad; Asmatulu, Ramazan (Elsevier B.V., 2019-10-01)
    Microalgae, Spirulina platensis, of the class Cyanobacteria, was produced in a 10-gallon tank using starter mix under simulated sunlight. Dried microalgae were frozen at –40 C for three days to stress the microalgae to ...

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