Browsing by Author "De Silva, P"

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Augmented reality in warehouse operations: possibilities and dynamics in Sri Lankan context
De Silva, P; Liyanage, HL
Large number of fields uses augmented reality in order to enhance the efficacy and effectiveness of processes. Similarly, augmented reality is an emerging trend in the supply chain management field. Growth and rapid progress in the use of augmented reality in supply chain and logistics industry are growing remarkable manner in during past few years. However, application of augmented reality technology is in infant stage in warehouse operations in the Sri Lankan context. Therefore, this paper aims to explore the possibilities of augmented reality applications and its dynamics in warehouse operations. Research paper first presents an integrated model of augmented reality applications arising from a comprehensive literature review and qualitative interviews. A questionnaire-based survey was then undertaken to test the possibilities of augmented reality applications. This mixed method research used 30 respondents. Data analysis were comprising of descriptive analysis, reliability and validity test. Finally, data were tested using Henry Garret Ranking method. Research result indicates that even though the technology is not mature enough at the moment, the potential benefits are enormous that make a promising future. Future directions for further research are discussed. This research provides a starting point for researching the use augmented reality in warehouse operations in the Sri Lankan context.
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Design and development of alkali pozzolan cement (APC)
(Elsevier, 2014) Kulasuriya, C; Vimonsatit, V; Dias, WPS; De Silva, P
This paper describes the development of an environmentally friendly Alkali Pozzolan Cement (APC), a non-hazardous dry cement powder that incorporates a large percentage of fly ash but needs only ambient temperature curing in order to achieve strengths comparable to OPC controls. APC consists of fly ash, lime, an activator and OPC (a ‘scaffolding’ material). Scaffolding was the most statistically significant factor contributing to the compressive strength of APC paste specimens, compared to activation, age (3 days vs 28 days) and temperature (ambient vs 15 h at 60 C). SEM, EDS and XRD investigations were employed to explain variations in strength.
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Examination of change of patterns and trends in the interaction of public transport in Colombo-Matara corridor bus & rail to provide an improved service
De Silva, P; Wijeyesekara, D; Ratnayake, LL
This study is on "Examination of change of patterns and trends in the interaction of public transport in Colombo - Matara corridor - Bus and Rail, to provide an improved service." The study was centered on the coastal belt of Sri Lanka where the rail and road run parallel from Colombo to Matara. The study area included two provinces namely the Western and Southern provinces and included five districts viz. Colombo, Kalutara, Galle, Matara and Hambantota,fig.1.1.(Appendix 11). The requirement was to process the modal shift of passengers between bus and rail in relation to increase in Regional Gross Domestic Product (RGDP) , increase in fares, and development in Western and Southern provinces. The present status of both road and rail has been highlighted along with the anticipated growth in road traffic thus justifying the necessity to carry out the particular study, in order to propose means of improvement of the present level of bus and rail services, and to realize optimum potential from the available resources. Regression analysis using Lotus package was adopted to evaluate and analyze the behavior between bus and rail with the increase in the regional gross domestic product and fares. Regression analysis was centered mainly around the effect on rail demand with increase in RGDP. It is inferred from the calculations, that an appreciable increase in rail demand is not reflected due to certain limitations in policy, operations, and facilities, existing as at present, in the rail service. The economics of operation, for both bus and rail were analyzed with the available bus and rail passenger statistics. Thus the potential of each mode was evaluated. The limitations were then analyzed individually, and their affects on the rail demand were discussed. Recommendations have been made how to overcome them, so that an effective modal shift from road to rail can transpire.