Ms. W.P.T. Hansameenu

Dr. SPDSSK KarunarathnaSenior Lecturer (Grade I)

Email Address	:	sanjeewak@kln.ac.lk
Telephone No	:	+94 (0)11 2 903 302 (ext: 302)
Fax	:	+94 (0) 112 903 319
Office Location	:	A7209/9
Teaching	:
Office hours available for students.	:	Monday - Friday from 8:00 - 16:00
Google Scholar
Research Gate

Research Interests

Smoothing spline models for creating surfaces,
Inverse square potential,
Bag model for quark confinement,
Ordinary Differential Equations,
Partial Differential Equations,
Regression Analysis.

Selected Publications

Book Chapters

SPDSSKKarunarathna, Prof. MMDRDeegahawature(Editor), “How Technology Can Enhance Assessment Environment in Large Classes”, SDC Wayamba University of Sri Lanka (2021).

Journals and Full Papers

HGVN Samarasooriya, SPDSSK Karunarathna, “Toward Accurate Visual Acuity Prediction: Selecting the Optimal Image Quality Assessment Metric”, Proceedings of the 16th Symposium on Applied Science, Business & Industrial Research, pp. 231-235, 2024.
NMNAKNawarathna, GACMKarunananda,SPDSSKKarunarathna, “Optimization of Inventory Cost Under Trapezoidal Demand with Constant Deterioration and No Shortages”, Proceedings of the 16th Symposium on Applied Science, Business & Industrial Research, pp. 214-219, 2024.
NWDLD Nanayakkara, SPDSSK Karunarathna, “On the Precision of Zernike Polynomials in Modeling Lower-Order Aberrations”, Proceedings of the 16th Symposium on Applied Science, Business & Industrial Research, pp. 209-213, 2024.
TSD Fernando, SPDSSK Karunarathna, “Validity of the Extrapolation of Zernike Coefficients”, Proceedings of the 15th Symposium on Applied Science, Business & Industrial Research, pp. 138-142, 2023(2024).
ARMHPWattetenne, SPDSSKKarunarathna, “On the Computation of Wavefront Aberrations Through Contact Lenses”, Proceedings of the 15th Symposium on Applied Science, Business & Industrial Research, pp. 138-142, 2023(2024).
SPDSSK Karunarathna, UWB Weerasinghe, “Analyzing Income and Expenses of Cooperative Rural Banks in ABC Division- Sri Lanka”, International Journal of Education and Applied Sciences, Vol. 4 (2), 2023.
SP Daundasekera, SPDSSK Karunarathna, “On the Computation of Higher Order Aberrations Via Lower-Order Aberrations”, Computer Vision and Image Understanding, Preprint, 2023; Available at SSRN: https://ssrn.com/abstract=4415364 or http://dx.doi.org/10.2139/ssrn.4415364.
RAVMJayarathna, TMMDeSilva, SPDSSKKarunarathna, “Mathematical Modelling of Tumorigenesis”, Proceedings of the 14th Symposium on Applied Science, Business & Industrial Research, 2022.
SPDaundasekera, SPDSSKKarunarathna, “Predicting the Effect of Zernike Coefficient of Defocus on Objective Image Quality”, Proceedings of the 13th Symposium on Applied Science, Business & Industrial Research, pp. 128-132 , 2021.
MMR Kumari, SPDSSK Karunarathna, ‘Forecasting Water Demand in Kandy North Region”, Proceedings of the 13th Symposium on Applied Science, Business & Industrial Research, pp. 88-92 , 2021.
SPDSSK Karunarathna, MPDS Lakshmi, TMM De Silva, “The Accuracy of Zernike Reconstruction of Ocular Aberrations with Measurment Noise”, International Journal of Engineering Applied Sciences and Technology (IJEAST), Vol. 6 (8), pp. 53-56, 2021.
MPDSLakshmi, SPDSSKKarunarathna, “A Smoothing Spline Approach to Represent Ocular Aberrations”, Proceedings of the 12th Symposium on Applied Science, Business & Industrial Research, pp. 181-185 , 2020.
H Ekanayake, SPDSSK Karunarathna, “Study of the Queuing Theory for the Supermarket”, Proceedings of the 12th Symposium on Applied Science, Business & Industrial Research, pp. 271-275, 2020.
ERSK Samarasinghe, SPDSSK Karunarathna, “Study of the Queuing Theory for the Supermarket”, Proceedings of the 11th Symposium on Applied Science, Business & Industrial Research, pp. 219-223, 2019.
SPDSSK Karunarathna, TS Hithakshika, “A Computational Model of High Jump Height”, International Journal of Scientific and Research Publications (IJSRP), Vol. 9 (7), pp. 213-210, 2019.
A Computational Model to Optimize Vision Correction via Contact Lens Design, Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, p. 111, 2018.
SPDSSK Karunarathna, WAAD Wickramasinghe, RAD Piyadasa, “On a Special Solution of Fermat Equation with Respect to P = 3,7 and for any Odd Prime”, International Journal of Innovative Research and Knowledge (IJIRK), Vol. 3 (7), July, 2018.
SPDSSK Karunarathna, RV Iyer, “Customized Contact Lens Design for Regular and Irregular Vision Deffects”, PhD Dissertation, Texas Tech University, USA, May, 2018.
SPDSSKKarunarathna, RADPiyadasa, “TheInverse Square Potential and Relativistic Bound States”, 12th Annual Research Symposium, University of Kelaniya, Sri Lanka, 2011.
SPDSSK Karunarathna, RAD Piyadasa, “Possible Quark Confinement by a Non relativistic Model”, 12th Annual Research Symposium, University of Kelaniya, Sri Lanka, 2011

Abstracts

KNHKumari,TMMDeSilva,and SPDSSKKarunarathna, “Asymptotic Dynamics of a Larch Budmoth Interaction with Harvesting and Thinning Operation”, TASME conference, Canada, 2024.
MPDS Lakshmi, SPDSSK Karunarathna, TMM De Silva, “Zernike Polynomials Fail to Account the Variability of Wavefront Measurements”, PGIS Research Congress, 2024.
MPDS Lakshmi, SPDSSK Karunarathna, TMM De Silva, “Modeling the Image Quality on the Retina with Variability”, PGIS Research Congress, 2023.
MPDSLakshmi, SPDSSKKarunarathna, TMMDeSilva, “Zernike Reconstruction of Ocular Aberrations with Measurement Noise”, 9th Ruhuna International Science & Technology Conference, University of Ruhuna, Sri Lanka, 2022.
RACS Ranawaka, TMM De Silva, SPDSSK Karunarathna, “Deterministic and Stochastic Dynamics of Lotka-Volterra Competition Model”, International Research Conference 2020 (IRS 2020), Sri Lanka Technological Campus, 2020.
SPDSSK Karunarathna, TMM De Silva, RACS Ranawaka, “Stochastic Modeling of Population Interaction with Allee Effects and Stocking”, PGIS Research Congress, 2019.
SPDSSK Karunarathna, TMM De Silva, “Stochastic Modeling of Lotka-Volterra Competition Model with Allee Effects”, PGIS Research Congress, 2018.
On the Computation of Point Spread Functions for the Eye after Contact Lens Motion with Application, Life Sciences, SIAM AN17, Pennsylvania, USA, July 2017.
A System Theoretic Viewpoint of the Human Eye with a Corneal Contact Lens, Texas Systems Day, Texas A & M University, USA, Mar 2017.
On the Computation of Visual Acuity after Contact Lens Rotation and Decentration, Graduate school poster competition, Texas Tech University, USA, Mar. 2017.
Computation of Wavefront Aberration in Rigid Gas Permeable Corneal Lenses AMSSession for Contributed Papers, Joint Mathematics Meetings, Georgia, USA, Jan. 4-7 2017.
Effect of the Contact Lens Motion on the Vision, Texas Tech University Three minutes Thesis competition, Texas Tech University, USA, Oct. 2016.
On the Computation of the Wavefront After Contact Lens Motion, Mathematical Modeling of the Eye, SIAM Conference of the Life Science, Boston, USA, July 2016.
The Inverse Square Potential and Relativistic Bound States, 12th Annual Research Symposium, University of Kelaniya, Sri Lanka, 2011.
Possible Quark Confinement by a Non-relativistic Model, 12th Annual Research Symposium, University of Kelaniya, Sri Lanka, 2011.

Invited Speaker

Workshop on Mathematical Sciences- 2018, A Post Conferences of the Wayamba International Conference, 2018 (WinC-2018).

On Going Research

Degree Programs and Thesis Evaluations

Professional Activities

Positions at Conferences & Symposia
National

Reviewer, Undergraduate Research Sessions 2025– Faculty of Applied Sciences, Rajarata University of Sri Lanka.
Co-Chair, Program Committee, 4th International Workshop on Mathematical Sciences (IWMS)-2024, Department of Mathematical Sciences, FAS, WUSL.
Reviewer, Research Congress (RESCON)2024, Postgraduate Institute of Science, University of Peradeniya, 2024.
Chairperson, The15thApplied Science, Business and Industrial Research Symposium (ASBIRES)– 2023, Faculty of Applied Sciences, (March 15, 2024).
Reviewer, The15thAppliedScience, Business and Industrial Research Symposium (ASBIRES)– 2023, Faculty of Applied Sciences, (March 15, 2024).
Reviewer, The 11th Ruhuna International Science & Technology Conference (RISTCON), University of Ruhuna, 2024.
Reviewer, Research Congress (RESCON)2023, Postgraduate Institute of Science, University of Peradeniya, 2023.
Reviewer, The International Conference on Applied and Pure Sciences (ICAPS 2023), Faculty of Science, University of Kelaniya, 2023.
Member of the Editorial Board, Proceedings of the 14th Applied Science, Business and Industrial Research Symposium (ASBIRES)– 2022, Faculty of Applied Sciences, (April 04, 2023).
Session Chair, The WayambaUniversity Research Congress (WURC), Wayamba University of Sri Lanka (2022).
Member of the Editorial Board, Proceedings of the 13th Applied Science, Business and Industrial Research Symposium (ASBIRES)– 2021, Faculty of Applied Sciences, (December 21, 2021).
Editor in Chief, Proceedings of the 12th Applied Science, Business and Industrial Research Symposium (ASBIRES)– 2020, Faculty of Applied Sciences, (December 22, 2020).
Member of the Editorial Board, Proceedings of the 11th Applied Science, Business and Industrial Research Symposium (ASBIRES)– 2019, Faculty of Applied Sciences, (November 06, 2019).
Member of the FundRaising Committee,The11thAppliedScience, Business and Industrial Research Symposium (ASBIRES)– 2019, Faculty of Applied Sciences, (November 06, 2019).
Reviewer, The 10th YSF Research Symposium, The Young Scientists Forum (YSF) of Sri Lanka (2022).
Reviewer, The Wayamba University Research Congress (WURC), Wayamba University of Sri Lanka (2021, 2022).
Reviewer, TheTenthAnnualScience Research Sessions 2021 (ASRS-2021), Faculty of Applied Sciences, South Eastern University of Sri Lanka (2021).
Reviewer, The 9th RuhunaInternational Science & Technology Conference (RISTCON), University of Ruhuna (2021).
Reviewer, The Wayamba Conference in Management (WAYACiM), Wayamba University of Sri Lanka (2020, 2021).
Reviewer, The International Conference on Applied and Pure Sciences (ICAPS), University of Kelaniya (2019, 2021, 2024).
Session Chair, The International Conference on Applied and Pure Sciences (ICAPS), University of Kelaniya (2021, 2024).
International
Reviewer, Undergraduate Poster Session-Science Section, Texas Tech University, TX, USA Mar. 2017.
Moderator, Mathematical Association of America, General Contributed Paper Session, Joint Mathematics Meetings, Georgia, USA Jan. 2017.
Judge, Mathematical Association of America, Undergraduate Poster Session, Joint Mathematics Meetings, Georgia, USA Jan. 2017.
Judge, Arts and Humanities Conference-Finance Section, Texas Tech University, TX, USA Nov. 2016.
Reviewer, Undergraduate Poster Session-Science Section, Texas Tech University, TX, USA Apr. 2016.
Judge, Mathematical Association of America, Undergraduate Poster Session, Joint Mathematics Meetings, Seattle, WA, USA Jan. 2016.
Chair, AMS, Ordinary Differential Equations, JMM, San Antonio, TX, USA 2015. 8. Judge, Southcrest Christian School Science Fair, Lubbock, TX, USA Jan 2015.
Comsol Workshop– September 11, 2015– Texas Tech University.
Texas Tech University Ground Work Program-January 11-13, 2017- Teaching, Learning and Professional Development Center (TLPDC), Texas Tech University.

Administrative Work

Academic Advisor, Department of Mathematical Sciences, Faculty of Applied Sciences, Wayamba University of Sri Lanka (from Academic Year 2019/2020 to present).
Representative, FAS, the Senate Research & Higher Degrees Committee.
ShadowCoordinator, FacultyQuality Assurance cell, Faculty of Applied Sciences, Wayamba University of Sri Lanka.
President, Kuliyapitiya University Teachers’ Association (KUTA, 2024/2025).
President, Kuliyapitiya University Teachers’ Association (KUTA, 2023/2024).
Vice-President, Kuliyapitiya University Teachers’ Association (KUTA, 2022/2023).
Board of Representative, The Federation of University Teachers’ Associations (FUTA), 2021/2022, 2022/2023, 2023/2024, 2024/2025.
Joint Secretary, Kuliyapitiya University Teachers’ Association (KUTA, 2021/2022).
Executive Member, Kuliyapitiya University Teachers’ Association (KUTA, 2019/2020).

Services

Vice President, Mathematics Students Society, University of Kelaniya 2007. 2006
Coordinator, DAYATA KIRULA exhibition, BMICH, University of Kelaniya 2007.
President, Sri Lankan Students Association, Texas Tech University, TX, USA August 2015– August 2016.
Vice President, Sri Lankan Students Association, Texas Tech University, TX, USA August 2014– August 2015.
Committee Member, Sri Lankan Students Association, Texas Tech University, TX, USA August 2014– August 2015.
Member, University Rugby Team, University of Kelaniya 2006– 2007.
Member, Society for Industrial and Applied Mathematics (SIAM), 2013- 2018.
Member, American Mathematical Society (AMS), 2013- 2018.
Member, Graduate Student Advisory Counsel, Texas Tech University (GSAC), 2016- 2018.
Member, Sri Lankan Student Association-Texas Tech University (SLSA), 2013- 2018.

Awards