International Research Symposium on Pure and Applied Sciences (IRSPAS): Recent submissions

  • A simulation on performance improvement at a university cafeteria: a case study 
    Samarawickrama, I. D. W.; Naotunna, T. U.; Bhagya, I. W. A. T.; Herath, H. M. C. N. K. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Universities are the foremost service providers of education in Sri Lanka. It necessitates the fleetness in the service provision at the premises. University cafeterias take a prominent place in which time intensity is at ...
  • Factors associated with valuation of land in Colombo district: a case study 
    Mendis, B. J. R. I.; Viswakula, S. D. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    This study aims to identify the factors associated with the valuation of lands in Colombo District, and to build a model to predict the price of a land in Colombo District. Moreover, this study gives an insight on how land ...
  • A simulation on optimizing the performance of a bank pawning centre: a case study 
    Weerakoon, W. M. T. N. K.; Senarathne, P. D. R. S.; Maduwanthi, R. V. M.; Sandaruwan, P. H. N. T. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Customer perception towards a quality service drives customer satisfaction. Long waits or queues involve as a common phenomenon in customer dissatisfaction. The banking system is one of the critical service options where ...
  • Analysis of queuing behaviour in commercial banks: a case study 
    Rambandara, R. D. S. S.; Hansani, W. A. D. I.; Arachchige, K. G. B.; Rasanjana, K. A. N.; Sonali, A. L. D. D. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Studying queuing behaviour has become a widely explored research area at the time. The practical scenario of waiting lines must be daily experienced by almost everyone. Banking services are foremost among the places where ...
  • Validation of root causes for knitting machine downtime 
    Fonseka, V. A. C. M.; Jayasinghe, W. J. M. L. P.; Selvarajah, P.; Herath, H. M. N. D. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    All machines and machine components are critical and their maintenance is of prime importance in every industrial sector. The halt of a manufacturing process is referred to as the downtime, which may have caused due to a ...
  • Optimizing the process of airline fleet re-assignment to minimize the impact of disruptions 
    Fernando, P. A.; Nanayakkara, L. D. J. F.; Tharaka, V. K.; Niwunhella, D. H. H. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Aircraft assignments often deviate from the original schedule due to technical failures, operational requirements and other unforeseen circumstances which can be termed as disruptions. In such situations, it is necessary ...
  • Nonparametric multiple comparisons and simultaneous confidence intervals for multivariate designs 
    Gunawardana, A.; Konietschke, F. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Over the last half-century, the use of multivariate designs has grown rapidly in many scientific disciplines. Such designs can have more than two possibly correlated response variables (endpoints) observed on each experimental ...
  • Identify a potential location for wind power plant in Jaffna district, Sri Lanka using GIS techniques 
    Weerasinghe, V. P. A.; Dilshara, R. M. P.; Liyanage, P. M.; Perera, G. L. D. N. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Wind energy is one of the renewable energy sources in the Sri Lanka. Currently, there are some active wind power stations located in Central region, Hambanthota, and Puttalam. National Renewable Energy Laboratory (NREL) ...
  • A business analytical model to analyse customer churn in mobile telecommunication industry in Sri Lanka 
    Ruwanika, D.; Mascrenghe, M. A. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    It is much important to an organization to identify the most affecting factors to lose their customers. This is a specific and practical problem for the group of organizations in telecommunication industry in all over the ...
  • A lean maturity assessment model to improve warehouse operations for the 3PL industry in Sri Lanka 
    Gamini, G. L. M.; Vidanagamachchi, K.; Wickramarachchi, R. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Warehousing plays an important role in the logistics sector in order to facilitate economic and business benefits for both parties including customer and the service provider. 3PL (third-party logistics) service providers ...
  • Multi-server queuing system modeling approach for customer service management in a super market: A case study 
    Dilanthi, M. G. S.; Ekanayake, H.; Herath, H. M. K. M.; Kaushala, L. M. K.; Ramanayake, R. M. A. M. K. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    The service performance is a key determinant for a super market to win customer attraction in large scale. Thus, better performance can be ensured with an efficient service provision to its customers. Accordingly, the study ...
  • A Simulation on ATM service performance: A case study 
    Dilanthi., M. G. S.; Wathsala, H. A. I.; Thennakoon, T. M. C. S.; Mihirani, K. N.; Jayarathna, H. A. D. N. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    The banking industry has significantly gained benefits using the ATM facility. The main objective of this is to minimize the customer waiting in money transactions and provide an efficient service for 24 hours daily. Thus ...
  • Land Subsidence Susceptibility Mapping in Bandarawela & Ella DS Divisions in Sri Lanka, using GIS 
    Kangana, U. S.; Illeperuma, I. A. K. S. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Land subsidence is gradual settling or sudden sinking of the earth's surface owing of subsurface movement of earth materials; most of the identified subsidence were caused by server withdrawal of underground water and ...
  • Factors Associated with the Post-operative Mortality following Vascular Surgeries: A Case Study 
    Fernando, W. W. M. D. Y.; Tissera, J. H. D. S. P. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Vascular surgery is a subspecialty of surgeries performed on vascular system, which is a combination of arteries, veins and lymphatic system, excluding intracranial (brain connected) and coronary (heart connected) arteries. ...
  • A systematic study on the effect of morphology of silver nanomaterials towards electrical conductivity in aqueous nanodispersions 
    Dheerasinghe, M. J.; Nisansala, H. M. D.; Abeysinghe, A. A. D. T.; Rajapaksha, K.; Patabendige, C. N. K. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Nanoscience is a field which has gained increasing attention of scientists in the recent past. Out of the various disciplines listed under nanotechnology, nanochemistry comes in the spotlight due to the wide array of ...
  • Electrodeposited metal sulfide thin films for gas sensing applications 
    Namawardana, D. G. K. K.; Wickramathilaka, P. A. K. Y.; Atapattu, H. Y. R.; De Silva, D. S. M. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Quantitative measurements of gases are based on a variety of physical or chemical principles. Among them semiconductor gas sensors are best candidates for the development of commercial gas sensors due to their higher ...
  • A new Sodium based electrolyte – PEO10NaBrO3 
    Sankalpa, H. A. C.; Sumathipala, H. H.; Wijesundera, R. P. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    The necessity of new and environmental friendly rechargeable batteries is increasing day by day due to the current technology development and power demand. Hence, efficient and low-cost new electrolyte materials have to ...
  • Enhancement of dye sensitized solar cells by introduction of L-Ascorbic acid to the natural dye extraction of Carissa carandas fruit 
    Wickramasinghe, G. C.; Nupearachchi, C. N.; Perera, V. P. S. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Dye sensitized solar cells are categorized under third generation solar cells where a standard cell consists of nanocrystalline semiconductor photo anode which is very often titanium dioxide (TiO2), a dye sensitizer, a ...
  • An alternative sulfur precursor for chemical bath deposition of CdS thin film 
    Gajanayake, G. K. U. P.; De Silva, D. S. M.; Atapattu, H. Y. R. (Gajanayake, G. K. U. P., De Silva, D. S. M and Atapattu, H. Y. R. (2019). An alternative sulfur precursor for chemical bath deposition of CdS thin film. 4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka. p98, 2019)
    Solar energy is the most appropriate electrification method for a tropical county like Sri Lanka. At present, Sri Lanka generates more than 72% of its electricity needs at a high cost by burning coal and diesel. To overcome ...

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