Publications:
1. D. J. LaFountain, and D. B. Ekanayake. Tight partitions and constrained optimization for packing circles in a circle. Italian Journal of Pure and Applied Mathematics (2023): Accepted.
2. D. B. Ekanayake, D. J. LaFountain, and B Petracovici. Finite convergence into a convex polytope via facet reflections. Applications of Mathematics (2022): 1-18. https://doi.org/10.21136/AM.2022.0134-22
3. D. B. Ekanayake, M.M. Ranpatidewage, and D. J. LaFountain. Optimal packings for filled rings of circles, Applications of Mathematics 65 (2020): 1-22. https://doi.org/10.21136/AM.2020.0244-19
4. D.B. Ekanayake, A.J. Ekanayake, J. Hunt, and C. L. Miller--Hunt. Modeling reproduction of whitetail deer and its applications. Journal of Theoretical Biology. 459 (2018): 90-102. https://doi.org/10.1016/j.jtbi.2018.09.032
5. E. S. Schroder, D. B. Ekanayake, and S.P. Romano. Indiana bat maternity roost habitat preference within Midwestern United States upland Oak-Hickory (Quercus-Carya) forests. Forest Ecology and Management. 404 (2017): 65-74. https://doi.org/10.1016/j.foreco.2017.08.032
6. A.J. Ekanayake and D. B. Ekanayake. A seasonal SIR metapopulation model with an Allee effect with application to controlling plague in prairie dog colonies. Journal of Biological Dynamics. 9. sup1 (2015): 262-290. https://doi.org/10.1080/17513758.2014.978400
7. D.B. Ekanayake and R. Iyer, ``Stabilization of a system with saturating, non-monotone hysteresis and frequency dependent power losses by a PD controller,'' Journal of Physics: Conference Series (JPCS), Vol. 585, No. 1, 2015, 012006 (pp.1--10).
8. D.B. Ekanayake and R. Iyer, ``Proportional Derivative control for hysteretic systems,'' SIAM Journal on Control and Optimization, Vol. 51, No. 5, 2013, pp. 3415-3433.
9. D.B. Ekanayake, ``Robust constrained trajectory tracking for magnetically controlled linear actuators with hysteresis,'' IEEE ACC, 2013, pp. 3585 - 3590.
10. D.B. Ekanayake and R.V. Iyer, ``Asymptotic behavior of a low dimensional model for magnetostriction for periodic inputs,'' Physica B: Condensed Matter, Volume 403, Issues 2-3, 1 February 2008, pp. 257-260.
11. D.B. Ekanayake and R.V. Iyer, ``Study of a play-like operator,'' Physica B: Condensed Matter, Volume 403, Issues 2-3, 1 February 2008, pp. 456-459.
12. R.V. Iyer and D.B. Ekanayake, ``Extension of hysteresis operators of Preisach type to real, Lebesgue measurable functions,'' Physica B: Condensed Matter, Volume 403, Issues 2-3, 1 February 2008, pp. 437-439.
13. D.B. Ekanayake and R.V. Iyer, ``Robust Control of Magnetostrictive Actuators With Uncertain System,'' ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, 2008, pp. 429-436.
14. D.B. Ekanayake, R.V. Iyer, W.P. Dayawansa, ``Wide band modeling and parameter identification for magnetostrictive actuators,'' ACC '07, 9-13 July 2007, pp. 4321 - 4326.
15. D.B. Ekanayake, S.G. Abeyratne, J.B. Ekanayake, ``Application of Doubly Fed Induction Generators for Stand-alone-mini Hydros,'' Transactions of the IEE-Sri-Lanka, Volume 6, Number 1, August 2005, pp.68-74.
16. D.B. Ekanayake, S.G. Abeyratne, ``A compact rectifier stage with an improved power factor,'' Transactions of the IEE-Sri-Lanka, Volume 5, Number 1, September 2003, pp. 64-68.
17. D.B.Ekanayake, J.B.Ekanayake, ``Capacitive-ballast based induction generators for small-hydro schemes,'' Journal IESL, April 2003.
2. D. B. Ekanayake, D. J. LaFountain, and B Petracovici. Finite convergence into a convex polytope via facet reflections. Applications of Mathematics (2022): 1-18. https://doi.org/10.21136/AM.2022.0134-22
3. D. B. Ekanayake, M.M. Ranpatidewage, and D. J. LaFountain. Optimal packings for filled rings of circles, Applications of Mathematics 65 (2020): 1-22. https://doi.org/10.21136/AM.2020.0244-19
4. D.B. Ekanayake, A.J. Ekanayake, J. Hunt, and C. L. Miller--Hunt. Modeling reproduction of whitetail deer and its applications. Journal of Theoretical Biology. 459 (2018): 90-102. https://doi.org/10.1016/j.jtbi.2018.09.032
5. E. S. Schroder, D. B. Ekanayake, and S.P. Romano. Indiana bat maternity roost habitat preference within Midwestern United States upland Oak-Hickory (Quercus-Carya) forests. Forest Ecology and Management. 404 (2017): 65-74. https://doi.org/10.1016/j.foreco.2017.08.032
6. A.J. Ekanayake and D. B. Ekanayake. A seasonal SIR metapopulation model with an Allee effect with application to controlling plague in prairie dog colonies. Journal of Biological Dynamics. 9. sup1 (2015): 262-290. https://doi.org/10.1080/17513758.2014.978400
7. D.B. Ekanayake and R. Iyer, ``Stabilization of a system with saturating, non-monotone hysteresis and frequency dependent power losses by a PD controller,'' Journal of Physics: Conference Series (JPCS), Vol. 585, No. 1, 2015, 012006 (pp.1--10).
8. D.B. Ekanayake and R. Iyer, ``Proportional Derivative control for hysteretic systems,'' SIAM Journal on Control and Optimization, Vol. 51, No. 5, 2013, pp. 3415-3433.
9. D.B. Ekanayake, ``Robust constrained trajectory tracking for magnetically controlled linear actuators with hysteresis,'' IEEE ACC, 2013, pp. 3585 - 3590.
10. D.B. Ekanayake and R.V. Iyer, ``Asymptotic behavior of a low dimensional model for magnetostriction for periodic inputs,'' Physica B: Condensed Matter, Volume 403, Issues 2-3, 1 February 2008, pp. 257-260.
11. D.B. Ekanayake and R.V. Iyer, ``Study of a play-like operator,'' Physica B: Condensed Matter, Volume 403, Issues 2-3, 1 February 2008, pp. 456-459.
12. R.V. Iyer and D.B. Ekanayake, ``Extension of hysteresis operators of Preisach type to real, Lebesgue measurable functions,'' Physica B: Condensed Matter, Volume 403, Issues 2-3, 1 February 2008, pp. 437-439.
13. D.B. Ekanayake and R.V. Iyer, ``Robust Control of Magnetostrictive Actuators With Uncertain System,'' ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, 2008, pp. 429-436.
14. D.B. Ekanayake, R.V. Iyer, W.P. Dayawansa, ``Wide band modeling and parameter identification for magnetostrictive actuators,'' ACC '07, 9-13 July 2007, pp. 4321 - 4326.
15. D.B. Ekanayake, S.G. Abeyratne, J.B. Ekanayake, ``Application of Doubly Fed Induction Generators for Stand-alone-mini Hydros,'' Transactions of the IEE-Sri-Lanka, Volume 6, Number 1, August 2005, pp.68-74.
16. D.B. Ekanayake, S.G. Abeyratne, ``A compact rectifier stage with an improved power factor,'' Transactions of the IEE-Sri-Lanka, Volume 5, Number 1, September 2003, pp. 64-68.
17. D.B.Ekanayake, J.B.Ekanayake, ``Capacitive-ballast based induction generators for small-hydro schemes,'' Journal IESL, April 2003.
Presentations:
1. “Hysteresis Modeling for Medical
Applications,'' Department of Physics, Western Illinois University, February
27, 2015.
2. “Alternative stable states and partial stability for disease control and population management,'' Department of Biology, Western Illinois University, December 5, 2014.
3. “A temperature dependent hysteresis model and its application to inductive heating,'' Department of Mathematics, Western Illinois University, September 25, 2014.
4. “A model for temperature dynamics of an inductively heated shape memory polymer.'' Special session on Hysteresis and Multi-rate Processes, AMS Spring Central Sectional Meeting, Lubbock, Texas, April 13, 2014.
5. “Robust constrained trajectory tracking for magnetically controlled linear actuators with hysteresis.'' Invited presentation in the session Modeling, Analysis, and Control of Systems with Hysteresis, American Control Conference, June 18, 2013.
6. “Smart actuators and their control.'' IEEE Sri Lanka Section, University of Peradeniya, June 10, 2013.
7. “On the existence of a solution for a model for temperature dynamics of an inductively heated shape memory polymer.'' Western Illinois University, November 15, 2012.
8. “PD Controller for Precision Position Control Systems.'' Iowa State University, March 3, 2011.
9. “Asymptotic behavior of a low-dimensional model for magnetic and magnetostrictive transducers for periodic inputs.'' Western Illinois University, April, 22, 2010.
10. “Tracking control of nonlinear systems with uncertainties in the presence of hysteresis and saturation.'' Joint Mathematical Meetings, Washington, D.C., January 8, 2009.
11. “Robust control of magnetostrictive actuators with uncertain system.'' ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, October 28--30, 2008.
12. “Wide band modeling and parameter identification for magnetostrictive actuators.'' American Control Conference, July 13, 2007.
13. “Application of wound rotor induction generators.'' IEE Sri Lankan 10th Annual Conference, September 27, 2003.
2. “Alternative stable states and partial stability for disease control and population management,'' Department of Biology, Western Illinois University, December 5, 2014.
3. “A temperature dependent hysteresis model and its application to inductive heating,'' Department of Mathematics, Western Illinois University, September 25, 2014.
4. “A model for temperature dynamics of an inductively heated shape memory polymer.'' Special session on Hysteresis and Multi-rate Processes, AMS Spring Central Sectional Meeting, Lubbock, Texas, April 13, 2014.
5. “Robust constrained trajectory tracking for magnetically controlled linear actuators with hysteresis.'' Invited presentation in the session Modeling, Analysis, and Control of Systems with Hysteresis, American Control Conference, June 18, 2013.
6. “Smart actuators and their control.'' IEEE Sri Lanka Section, University of Peradeniya, June 10, 2013.
7. “On the existence of a solution for a model for temperature dynamics of an inductively heated shape memory polymer.'' Western Illinois University, November 15, 2012.
8. “PD Controller for Precision Position Control Systems.'' Iowa State University, March 3, 2011.
9. “Asymptotic behavior of a low-dimensional model for magnetic and magnetostrictive transducers for periodic inputs.'' Western Illinois University, April, 22, 2010.
10. “Tracking control of nonlinear systems with uncertainties in the presence of hysteresis and saturation.'' Joint Mathematical Meetings, Washington, D.C., January 8, 2009.
11. “Robust control of magnetostrictive actuators with uncertain system.'' ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, October 28--30, 2008.
12. “Wide band modeling and parameter identification for magnetostrictive actuators.'' American Control Conference, July 13, 2007.
13. “Application of wound rotor induction generators.'' IEE Sri Lankan 10th Annual Conference, September 27, 2003.