Browsing Interdisciplinary Studies by Issue Date

Now showing items 1-20 of 40

The Statistical Distribution of Annual Maximum Rainfall in Colombo District

Mayooran, T.; Laheetharan, A. (University of Jaffna, 2012)

Modelling of extreme rainfall events is the fundamental part of flood hazard estimation. Establishing a probability distribution to represent the precipitation depth at various durations has long been a topic of interest ...
Modelling a Probability Distribution for Extreme Rainfall Events in Colombo, Sri Lanka

Mayooran, T.; Laheetharan, A. (2012)

Modelling of extreme rainfall events is the fundamental part of flood hazard estimation. Establishing a probability distribution to represent the precipitation depth at various durations has long been a topic of interest ...
Co-synthesis of ZnO / SnO2 mixed nanowires via a single-step carbothermal reduction method

Thanihaichelvan, T.; Haseeb, A.S.M.A.; Akbar, S.A.; Sabri, M.F.M. (Elsevier, 2013)

ZnO/SnO2 mixed nanowires are fabricated by a single-step in-situ carbothermal reduction of mixed ZnO and SnO2 powders with activated carbon under atmospheric pressure on a gold (Au) coated alumina substrate. Morphology and ...
Seismic response of underground utilities following the Canterbury earthquakes

McLachlan, R.; Morris, J.; Kathirgamanathan, P.; Callosa-Tarr, J. (New Zealand Geotechnical Society Symposium, 2013)

This paper reports the initial findings of a new research project funded by the Ministry of Business, Innovation and Employment (MBIE). The research, in collaboration with the Geological Nuclear Sciences (GNS), will ...
Catalyst freesingle-stepfabricationofSnO2/ZnO core–shell nanostructures

Thanihaichelvan, T.; Haseeb, A.S.M.A.; Akbar, S.A.; Sabri, M.F.M. (Elsevier, 2013)

Facile catalyst-freesynthesisofSnO2/ZnO core–shell nanowiresandhierarchicalnanostructuresgrownviaaone-stepcarbonassistedthermal evaporation methodunderambientpressureisreported.Awhitewool-likemassformsatthesideandontopof ...
Photoluminescence Studies on Spray Pyrolysis Deposited ZnO-SnO2 Mixed Thin Films

Thanihaichelvan, T.; Haseeb, A.S.M.A.; Sabri, M.F.M. (Advanced Materials Research, 2014)

ZnO-SnO2 mixed thin films were prepared by the spray pyrolysis technique using different molar ratios of zinc and tin in the starting solution. These mixed thin films were analysed by X-ray diffraction (XRD) and photoluminescence ...
Gas sensing properties of zinc stannate (Zn2SnO4) nanowires prepared by carbon assisted thermal evaporation process

Thanihaichelvan, T.; Haseeb, A.S.M.A.; Akbar, S.A.; Sabri, M.F.M.; Wong, Y.H. (Elsevier, 2014)

Zn2SnO4 nanowires are successfully synthesized by a carbon assisted thermal evaporation process with the help of a gold catalyst under ambient pressure. The as-synthesized nanowires are characterized by Xray diffraction ...
Enhanced ethanol gas sensing properties of SnO2-Core/ZnO-Dhell Nanostructures

Thanihaichelvan, T.; Haseeb, A.S.M.A.; Akbar, S.A.; Sabri, M.F.M.; Hoong, W.Y. (sensors, 2014)

An inexpensive single-step carbon-assisted thermal evaporation method for the growth of SnO2-core/ZnO-shell nanostructures is described, and the ethanol sensing properties are presented. The structure and phases of the ...
Structural and optical properties of ZnO–SnO2 mixed thin films deposited by spray pyrolysis

Thanihaichelvan, T.; Haseeb, A.S.M.A.; Sabri, M.F.M. (Elsevier, 2014)

Nanocrystalline ZnO–SnO2 mixed thin filmswere deposited by the spray pyrolysis technique at various substrate temperatures during deposition. The mixed films were prepared in the range of 20.9 at.% to 73.4 at.% by altering the ...
Tailoring ZnO nanostructures by spray pyrolysis and thermal annealing

Thanihaichelvan, T.; Haseeb, A.S.M.A.; Akbar, S.A.; Thanihaichelvan, M. (Elsevier, 2014)

We report a novel synthesis of ZnO nanorods with hexagonal pyramid-like heads by a simple and low cost technique of spray pyrolysis with the help of zinc acetate and tin (IV) chloride pentahydrate precursors. In the present ...
Simulated Tests for Normality: A Comparative Study

Rahman, M.; Mayooran, T. (International Journal of Statistical Sciences, 2015)

The subject of assessing whether a data set is from a specific distribution has received a good deal of attention. This topic is critically important for the normal distribution. Often the distributions of the test statistics ...
Applying the Successive Over-relaxation Method to a Real World Problems

Mayooran, T.; Light, E (American Journal of Applied Mathematics and Statistics, 2016)

Solving a system of equations by 𝐴𝐴𝐴𝐴 = 𝑏𝑏, where A is a 𝑛𝑛×𝑛𝑛 matrix and b and 𝑛𝑛×1 vector, can sometime be a daunting task because solving for x can be difficult. If you were given an algorithm that was ...
Structural acoustic coupling resonance of hindu temples

Wijesiriwardana, R.; Vignarajah, M.; Kathirgamanathan, P.; Walgama, K. (Proceedings of 54th IASTEM International Conference, Kuala Lumpur, Malaysia, 2017)

Abstract- Some ancient constructions over the world exhibit acoustic resonance chambers [1, 7]. Acoustic resonance of Pyramids [1], Stupas [2,6,7], Cathedrals [3,4,12] and Mosques [5] have been studied and they closely ...
Performance Evaluation and Exergy Analysis of Different Working Fluids used in Organic Rankine Cycle for Power Generation Operates under Constant Temperature Heat Reservoirs.

Kankeyan, T.; Wijewardane, M.A.; Ranasinghe, R.A.C.P.; Jayasekara, J.G.A.S. (2017)

This paper investigates the thermal efficiency and exergy analysis of one of the predominant low-grade energy recovery technique, Organic Rankine Cycle. Working fluids R113, R123, R141b, R245fa, R600a, R601a, neopentane, ...
Working Fluid Selection and Performance Evaluation of ORC

Thurairaja, K.; Wijewardanea, A.; Jayasekaraa, S.; Ranasinghe, C. (Elsevier, 2018)

Organic Rankine Cycle (ORC) is known as one of the best method amongst the other low-grade energy recovery methods. ORC can be applied for different applications such as geothermal, solar thermal and waste heat. However, ...
Whole Body Mechanical Vibrations of Passengers Travelling in Busses in Sri Lanka

Wijesiriwardana, R.; Vignarajah, M.; Kathirgamanathan, P.; Gnanasena, T.U.; Dissanayake, D.M.P.C. (Institute of Research Engineers and Doctors, 2018)

Abstract— One of the main passenger transportations in Sri Lanka is the bus. Most of these busses used for the passenger transportation do not have proper vibration dampers and passengers who travel in them are subjected ...
Design and experimental validation of an optimized wrist powered 3D printed mechanical transmetacarpal prosthesis

Kumarage, K.; Wickramarathna, H.; Vijesundaram, M.; Vijendran, M.; Rathnakumar, N.; Thanihaichelvan, T. (IEEE 14th International Conference on Industrial and Information Systems (ICIIS), 2019)

In general, currently available 3D printed transmetacarpal prostheses in the market are being rejected by amputees due to their lower efficiency caused by the higher flexion angle and discomfort. One of the abundantly ...
Recent Developments in Data Science: Comparing Linear, Ridge and Lasso Regressions Techniques Using Wine Data

Mayooran, T.; Gabirial, M.; Rahman, A. (University of Oxford UK, 2019)

Big data is the reality of the 21st century. However, big data modeling and prediction require advanced level analytics which encompasses both the computing-intensive and statistics-oriented analysis tools in data science. ...
Highly Sensitive and Selective Ethanol Sensor Based on ZnO Nanorod on SnO2 Thin Film Fabricated by Spray Pyrolysis

Thanihaichelvan, T.; Thanihaichelvan, M.; Haseeb, A.S.M.A.; Akbar, S.A. (2019)

This work reports the fabrication of mixed structure of ZnO nanorod on SnO2 thin film via spray pyrolysis followed by thermal annealing and their gas sensing properties. ZnO/SnO2 nanostructures are successfully prepared ...
Design and Optimization of a Wrist Powered Upper Limb Prosthesis

Kumarage, K.; Wickramarathna, H.S.; Vijesundaram, M.; Mugilgeethan, V.; Rathnakumar, N.; Thanihaichelvan, T. (2019)

The primary function of a prosthetic device is to provide assistive support for patients with upper or lower limb amputation. Among the upper limb amputations, most of the patients with trans-metacarpal amputation avoids ...

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