Professor in Physics
Email: iwanni@sjp.ac.lk iwanni@gmail.com
Office : 0112758889
Research interest :Embedded Systems, Machine Vision, Computational Physics, Electronic Structure, Signal Processing
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| Designation | Professor |
| Contact Information | Department of Physics, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lankaoffice: +94 112758889
email: iwanni@sjp.ac.lk Web page: |
| Research Interests | Embedded Systems, Electronic Instrumentation, Electronic Structure, Computer Vision |
| Teaching | Microprocessors and Microcontrollers, Image Processing and Embedded Computer Vision, Data Acquisition and Signal Processing, C Programming, Embedded Linux Systems, Computer Integrated Control Systems |
| Computational Tools | C, C++, Python, Open CV, MATLAB, Mathematica, Arduino, Processing, R |
| Education | PhD., Physics (2013, Department of Physics and Astronomy, Wayne State University, MI-USA)B.Sc. (Hons), Physics, First Class Honors (2005)University of Sri Jayewardenepura, Sri Lanka |
| Patents | Patent No: 20028, Invention Title: An Internet of Things Based Method and Apparatus for Controlling Black Tea Optimum Fermentation Based on Physical Parameters (2018) |
| Books | AVR Microcontroller Architecture: Atmega 328 Microcontroller Programming Using C and Arduino, in Press |
| Honors and Awards | Research Award for the Science Citation Index Journal publications, 2019, USJ
Research Award for the Science Citation Index Journal publications, 2020, USJ Innovate Sri Lanka 2019 –won the fourth place under Robotics and Embedded Systems, in recognition of the invention “StyleMe:Virtual Dressing Room” Innovate Sri Lanka 2019 –won the third place under Robotics and Embedded Systems, in recognition of the invention “Fix the circuit: Virtual Reality Platform for Learning Electronics” Innovate Sri Lanka 2019 –won the second place under Robotics and Embedded Systems, in recognition of the invention “Digi-Nose: IoT Based Aroma Detection Unit for the Black Tea Fermentation” Business Solution Awards 2015 – “An automated soil and climatic conditions controlling greenhouse: a preliminary study” University Business Linkage (UBL) Unit, Uva Wellassa University Summer Dissertation Fellowship, Wayne State University, USA, 2013 Thomas C. Rumble University Graduate Fellowship, Wayne State University, USA, 2012-2013 Daniel R. Gustafson Outstanding Graduate Teaching Assistant Award, Wayne State University, USA, 2012 Winner of the “Physical Science Awards- 2005”, in the field of physics awarded by the Sri Lanka Association for the Advancement of Science (SLAAS) |
| Academic Experience | 2006 – present |
| Postgraduate Supervision | PhD Supervision
Mrs.Tharaga Sharmilan, Development of an Automated IoT Based Aroma Detection System to Quantify Olfactory Sensory Profile of Fermentation of Black Tea (PhD, 2022, co-supervisor) Mr. Sasadara B. Adikari, 3D Reconstruction of Clothing Articles Using Multiview RGB-D Streams with an Emphasis on Virtual Dressing Rooms (PhD, 2022, USJGrants ASP/01/RE/SCI/2015/27, ASP/01/RE/SCI/2019/65, PI) Mr. R.M.D.M. Senarathna, Soft Lithography of Natural Superhydrophobic Surfaces with an Investigation of Drop Shape Analysis Techniques (PhD, 2023, co-supervisor) MPhil Supervision Ms. K. A. S. V. Rathnayake , Development of a Gesture and Voice Operated Home Automation System using Kinect Depth Sensor Device (MPhil, 2018, USJGrant: ASP/01/RE/SCI/2016/25, PI ) Mr. S. I. A. P. Diddeniya, Development of a RGB-D Sensor-Based Office Assistant Robot System (MPhil, 2022, USJGrant ASP/01/RE/SCI/2017/13, PI) Mr. B.V. Sandaru Suwan, “Designing of a novel energy saving method for RF circuits and construction of a RF power harvesting system (MPhil, 2023, co-supervisor) Mr. B Watawana, Internet of Things based data acquisition unit to determine optimum physical properties for tea fermentation process (MPhil, 2021, co-supervisor) |
| University, National and International Development Activities | Treasurer- Institute of Physics Sri Lanka, 2023
President – SLAAS Section E1, 2019 Secretary – SLAAS Section E1, 2016 Committee Member SLAAS Section E1, 2016-2022 Council Member, Co Editor – IPSL, 2016 Council Member, Co Editor – IPSL, 2022 Subject Coordinator – EES, FAS-USJ, 2017- 2023 Board Member, CAMR, FAS- USJ, 2016-2018 Academic Counsellor, FAS- USJ, 2016-2022 President – VSTA, FAS-USJ, 2016/2017 Senior Treasurer – Student Union, FAS-USJ, 2016-2019 SLAAS- Sri Lanka Association for the Advancement of Science IPSL- Institute of Physics Sri Lanka CAMR – Center for Advanced Material Research EES- Electronics and Embedded Systems VSTA – Vidujaya Science Teacher’s Association |
| Dual Delivery of LessonsSLAAS YouTube channel | Electronic Practicals in Physics (ප්‍රායෝගික ඉලෙක්ට්‍රොනික විද්‍යාව) කැතෝඩ කිරණ දෝලනේක්ෂය භාවිතය (45 mins)Cathode Ray Oscilloscope
Link: https://youtu.be/WOiv_Ii9DFs ප්‍රත්‍යාවර්ථ ධාරා ඝෘජුකරනය සහ සරල ධාරා ජව සැපයුම(45 mins) AC wave rectification and DC power supply Link: https://youtu.be/XGJe4Bgiqhc ඉලෙක්ට්‍රොනික පරිපත සමාකරණය (36 mins) Electronic Circuit Simulation Link: https://youtu.be/5RRFFxJtst4 සංඛ්‍යාංක ඉලෙක්ට්‍රොනික විද්‍යාව – 1 කොටස (45 mins)මූලික තාර්කික ද්වාර Digital Electronics – Part 1 Basic Logic Gates Link: https://youtu.be/LzqM4ONdyJY සංඛ්‍යාංක ඉලෙක්ට්‍රොනික විද්‍යාව – 2 කොටස (50 mins) තාර්කික ද්වාර සහ සංයොජක පරිපත Digital Electronics- Part 2 Logic Gates and Combinational Circuits Link: https://youtu.be/VB74foNUY9U කාරකාත්මක වර්ධකයේ යෙදීම් – 1 කොටස අපවර්තනය වන සහ අපවර්තනය නොවන වර්ධක (75 mins) Operational Amplifier – Part1 Inverting and non-Inverting Amplifier Link: https://youtu.be/PkQW9nG0z4U කාරකාත්මක වර්ධකයේ යෙදීම් – 2 කොටස අපවර්තනය වන සහ අපවර්තනය නොවන වර්ධක (46 mins) Operational Amplifier – Part 2 Inverting and non-Inverting Amplifier Link: https://youtu.be/Aa8P80nvOOA කාරකාත්මක වර්ධකයේ යෙදීම් – 3 කොටස ප්‍රතිසම වෝල්ටීයතා සන්සන්දකයක් ලෙස ක්‍රියා කිරීම (33 mins) Applications of OpAmp – Part 3 Comparator |
| Research publications in refereed journals | Sasadara B. Adikari, Naleen Ganegoda, Ravinda Meegama, Indika L. Wanniarachchi, “Improved Mesh Reconstruction With an Edge Quality Enhancement Using Multiple Inward Depth Streams” , IEEE Access 10, 2022 (IF = 3.37) https://ieeexplore.ieee.org/abstract/document/9889703Isanka Diddeniya, Hiroharu Kawanaka , Hansi Gunasinghe, Chinthaka Premachandra, Indika Wanniarachchi, “Human–Robot Communication System for an Isolated Environment”, IEEE Access 10, 2022 (IF = 3.37) https://ieeexplore.ieee.org/abstract/document/9795273Dakshika Wanniarachchi Tharaga Sharmilan, Iresha Premarathne, Indika Wanniarachchi, Sandya Kumari,” Application of Electronic Nose to Predict the Optimum Fermentation Time for Low-Country Sri Lankan Tea”, Journal of Food Quality, Hindawi , 2022 (IF = 3.2) https://doi.org/10.1155/2022/7703352BVS Suwan, WWG Vidula, WKIL Wanniarachchi, CH Manathunga, S Jayawardhana, “The Design and Implementation of an RF Energy Harvesting System Using Dynamic Pi-Matching, Enabling Low-Power Device Activation and Energy Storage”, Progress in Electromagnetics Research C, 119, 49-63, 2022 (IF 1.68)Tharaga Sharmilan, Iresha Premarathne, Indika Wanniarachchi, Sandya Kumari, Dakshika Wanniarachchi, “Electronic Nose Technologies in Monitoring Black Tea Manufacturing Process”, Journal of Sensors, Hindawi, 2020 (IF = 2.34) |
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Gustafson Graduate Teaching Assistant Award, Wayne State University, USA, 2012
Left to Right
Professor Ratna Naik, Professor Robert L Thomas, Ehab Hamdy Abd Elhamid, W. K. I. L. Wanniarachchi, and NASA astronaut Terry W. Virts, Jr.
W. K. I. L. Wanniarachchi of Sri Jayewardenepura University (left) receives the certificate and Physical Science Award 2005 in the field of Physics from Padma Vibushana Prof. M. S. Swaminathan FRS UNESCO-Conteau Professor in Echo technology for Asia and Chairman, M. S. Swaminathan Foundation. Also present (second from right) Prof. Tuley De Silva, Professor of Chemistry, Queen’s University of Belfast U.K. (Monday 12 December 2005 @ Bandaranayke Memorial International Conference Hall)