Principal Investigator:
Dr. Ravi Wijesiriwardana – Department of Electrical and Electronic Engineering, University of Jaffna.
Multidisciplinary Team Members:
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Mr. M. Vignarajah – Department of Civil Engineering, University of Jaffna.
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Dr. P. Kathirgamanathan – Department of Interdisciplinary Studies, University of Jaffna.
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Prof. K.S. Walgama – Department of Engineering Mathematics, University of Peradenya.
Dates:
Project started in Jan/2017 and currently in August 2017 it is on going.
We have launched a preliminary field research to understand the acoustic resonance of Hindu temples. We have measured the resonance in some selected Hindu temples in Sri Lanka. Two types of acoustic resonance chambers can be found in Hind Temples in Sri Lanka. The first one is the “Moolastana” chamber and the other is the inner core (path). First part of the work is focused on measuring the acoustic resonance of Hindu Temple`s geometrical cavities. Sound impulse methods and the reverberation methods are used to measure the acoustic resonance modes. Sound frequencies from 20Hz to 20kHz is scanned to identify the resonance modes. The second part of the project is focused on measuring the 4 dimensional sound fields of acoustic instruments used in Hindu temples. Drums, gongs, bells, flutes and other instruments sound fields are recorded and 3D maps of the pressure and displacements fields are been developed. The open air measurements are done with microphones placed in 3 dimensional space. The measurements were taken at selected ancient Hindu Temples in Northern and Eastern Provinces of Sri Lanka and numerical simulations (FEM) are been carried out to understand the resonance of Hindu Temples and ritual acoustic instruments.
The project is endorsed by Dean of Faculty of Engineering Prof. A. Athputharah and the Director General of Archeology, Sri Lanka Prof. P.B. Mandawala.
Publications:
[1] R. Wijesirwardana, M.Vignarajah, K.S. Walgama and P. Kathiragamanathan “Structural Acoustic Coupling Resonance of Hindu Temples” ICCAE IASTM May 2017 Kuala Lumpur Malaysia.
Mr. D.S. Sampath helped BUSL exaction project as Civil Engineer.
Mr. D.S. Sampath was requested to help the Archeological Excavation and Conservation Project of Bhiksu University of Sri Lanka by the Dean of Faculty of Languages and cultural studies of the Bhiksu University of Sri Lanka, Anuradhapura.
Obituary Notice: Retired Professor V Navaratnarajah (Ph.D., F.I.C.E., C.Eng., M.I.E.(SL) Former Professor of Civil Engineering, University of Jaffna.
With sadness, we share the news of the demise of Dr. V. Navaratnarajah, former Professor of Civil Engineering. Prof V. Navaratnarajah served as an academic staff with the University of Malaya for many years at several capacities including Dean of the Faculty Engineering. Later he served as staff of the Faculty of Engineering at the University of Jaffna from September 1990. He has served in making the pre arrangements for the establishment of the Faculty of Engineering. Professor Navaratnarajah was also one of the founder members of the Jaffna Science Association. He served as the President of JSA (1995 – 1997) during the most difficult time in the history of JSA as well as in the lives of residents of the Jaffna Peninsula due to the undesirable conditions prevailed in the region. He passed away on 19th August 2017 in Singapore. He is leaving behind his beloved wife, a son and a daughter. May his soul rest in peace. The community of the University of Jaffna will remember him always.
Mr. D.S. Sampath attended to the workshop on Geostatistical Analyst Extension of ArcGIS software
Mr. D.S. Sampath attended workshop on Geostatistical Analyst Extension of ArcGIS software on 14th & 15th August 2017 at GIS solutions Pvt Ltd, 370, Galle Road, Colombo 3. This workshop was organized by GIS solutions (Pvt) Ltd. Department of Civil Engineering, University of Jaffna purchased 31 licenses of ArcGIS software from GIS solutions (Pvt) Ltd. This was funded by WaSo project of University of Jaffna, This training program also included in the same package. This workshop targeted to cover geostatistical analysis using ArcGIS software.
Dr. Nadarajah Manivannan from Brunel University London visited to the Faculty
Dr. Nadarajah Manivannan visit to the Faculty of Engineering on 11th August for a discussion on possible collaboration. Dr. Manivannan is from the Brunel University London and few possible postgraduate education were discussed. He visited to the laboratories to see the facilities. In the discussion the Faculties of Engineering, Technology staff members were participated.
Discussion with World University Services Canada and National Construction Association of Sri Lanka Northern Branch for possible collaborations
The faculty leaderships had few discussions with World University Services Canada (WUSC) and National Construction Association of Sri Lanka Northern Branch (NCASL/N) for possible collaborations to empower the youths in this region. These discussions were carried out in few events organized by the WUSC and NCASL/N. The discussions resulted to have an official discussions at the Faculty of Engineering University of Jaffna on 11th August 2017.
Training on Science & Technology of Compatible Reverse Osmosis (RO) System Design, Maintenance & Servicing
Dr. B. Ketheesan and Mr. D.S. Sampath attended Training Workshop on Science & Technology of Compatible Reverse Osmosis (RO) System Design, Maintenance & Servicing on 11th Aug 2017 at Postgraduate Institute of Agriculture (PGIA), University of Peradeniya. This was funded by WaSo project of University of Jaffna.
Inauguration of setting up Conceptual Solar Thermal Research Station
The Engineering Faculty of University of Jaffna (UoJ) has initiated the conceptual development of a Center for Excellence (CoE) in Solar Research that is expected to be, when set up, the first of its kind in Sri Lanka. The Center will be equipped with latest testing equipment on measuring solar irradiance as well as other parameters. We feel the setting up of this CoE is important as a reference point for both academia and the industry, given that the country has now embarked on up taking solar technology. The CoE will undertake both solar photovoltaics (PV) and solar thermal research. While there are some accomplishments in solar PV applications in this country, the solar thermal field remains relatively unexpired.
IESL Vadakkin Chapter organized the Junior Inventor of the Year (JIY) 2017 among the school students of Northern Province at the Faculty of Engineering
Institution of Engineers Sri Lanka Vadakkin Chapter (IESL NPC) conducted the Junior Inventor of the Year (JIY) 2017 competition among the school students of Northern Province at Faculty of Engineering, University of Jaffna, Kilinochchi. The competition was chaired by Eng. T. Barathithasan, Chairman of the Vadakkin Chapter with the presence of Eng. Jayavilal Meegoda, the president of IESL on 06th August 2017.
Dr. B. Ketheesan attended as Chief Guest for the Water Day Competition Certificate awarding ceremony
Every year throughout the world on the 22nd of March World Water Day is remembered and celebrated. In keeping with this celebration the “World Water Day Art Competition’’ was conducted for the School children in our project area. This program was celebrated at KN/ Barathy Vidyalayam on the 21st March 2017, more than 55 School children from three Schools in our project area, 15 teachers and WaSSIP staff also participated in this program.