Research Publications Authored by SLIIT Staff
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This collection includes all SLIIT staff publications presented at external conferences and published in external journals. The materials are organized by faculty to facilitate easy retrieval.
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Publication Open Access True nature of brain drain and brain gain: A MM-QR analysis on migration, remittances and FDI(Elsevier Ltd, 2026-12) Lokuliyana, A; Perera, J; Perera, R; Marina, N; Samarakkody, T; Kankanam Pathiranage, H.SWith ever-changing global dynamics, understanding which factors promote or hinder economic growth is crucial for any country. Although many studies have examined the variables migration, remittances, and FDI, fewer have examined their collective impact on economic growth in an income-level analysis. A noticeable limitation of the few existing studies in the area is the inability of the mean-based models to address the heterogeneity in real-life distributions. The main objective of the study was to bridge the knowledge gap and address the heterogeneity concerns in mean-based models using MM-QR, meanwhile providing quantile-based evidence for economic theories such as endogenous growth theory, structural transformation theory and most importantly, brain drain theory. The study used a panel dataset of 118 countries from 1995 to 2023, categorized into 4 income levels. Results of the study supported the brain drain theory, where migration negatively affected poorer economies and hinted at the possible existence of brain gain in HICs. Continuous non-linear behavior of FDI, remittances explained the existence of developmental asymmetries and supported endogenous growth theory and structural transformation theory and reveals development threshold effects. Finally, the study underlines the importance of placing tailored policies to absorb migration, remittances and FDIs for economic growth and provides policy recommendations accordingly.Publication Open Access Globalisation and environmental pressure in Europe: evidence from ecological footprint dynamics(Springer, 2026-05-12) Meegamaarachchi, C; Senavirathna, N; Perera, R; Reshini, P; Jayathilaka, R; Athalage, DBackground: Environmental degradation, as assessed by the ecological footprint, remains a significant global challenge. Although research has examined its linkages with globalisation, evidence remains fragmented and region-specific, thereby leaving uncertainties regarding global patterns and temporal causality. Methods: This study examines the predictive causal dynamics based on Granger causality between globalisation and environmental degradation across 35 European countries from 1993 to 2023, using the panel and country-level Granger causality and Wavelet Coherence analyses. Given the strong regulatory architecture of the European Union, understanding how global economic integration interacts with environmental outcomes is crucial for designing effective regional environmental governance strategies. Results: The findings demonstrate that environmental-globalisation dynamics in Europe operate through multi-scale interaction rather than uniform country-level pathways. These findings highlight the importance of supranational regulatory coordination within the European Union, where environmental governance is shaped not only by national policies but also by regional regulatory frameworks. Furthermore, the study’s findings underscore the importance of regional and country-specific policy implications. These patterns suggest potential heterogeneity across countries; however, given the statistical limitations associated with multiple testing and the small sample size. These findings should be interpreted as indicative rather than conclusive evidence of institutional differences. Time–frequency analysis reveals that globalisation intensifies ecological pressure in the short-term, while it demonstrates mitigating effects over the medium-term. This pattern is consistently observed across the empirical analysis. Conclusion: By employing the ecological footprint as a comprehensive indicator and introducing the LJC heat map visualisation, this study advances methodological and empirical understanding of the globalisation-environmental nexus, while providing targeted policy insights for SDG-aligned sustainability strategies.Publication Open Access Semi-Automated Spice Packaging Machine for Middle Scale Business in Sri Lanka(SLIIT, 2022-02-11) Jayasuriya, A; Perera, R; Thihara, I; De Silva, SIn Sri Lanka, small scale spice packaging businesses use traditional methods while middle scale spice packaging businesses use separate machineries for each individual tasks such as weighing, filling, and sealing processes. Comparatively, considering the higher demand for large-scale spice products in the market, they use highly expensive, technically improved, automated machinery. According to the researches and the site visits, it is observed that currently, there is no affordable packaging machine available in the local market for middle scale businessmen, which includes all weighing, filling and sealing processes in a single system. Therefore, it limits their profits and production. The current used methods in middle scale businesses cause high wastage of raw materials, less accuracy, less hygienic, higher labor costs, and low efficiency. This project proposes a semi-automated, Arduino based machinery for middle scale spice packaging business where a packet is fed manually to the system, while weighing, filling, and sealing processes are automated and sequentially completed. The operation of this machine can be carried out with an involvement of a single laborer. The designed product is pneumatic based and uses some sensors for position, weighing and level detection, heating element, stepper motors, pneumatic system components for smooth operation and Arduino as the micro controller to make it cost effective. With this innovative structure, three packets can be filled and sealed within fifteen seconds while the current used method takes fifteen seconds to complete this process for a single packet. Cost and time effectiveness, reducing ingredient wastage and labor cost are the main advantages of this project. Due to the COVID-19 health restrictions, the hardware implementation is partially completed but to illustrate the working principle and the design plan, a 3D animated model was implemented using SolidWorks, incorporated with electrical stimulation in the Proteus software package.Publication Embargo “Cradle to Gate” assessment of material related embodied carbon: A design stage stratagem for mid-rise housing in Sri Lanka(Elsevier, 2021-01-01) Jayawardana, A; Perera, N; Perera, RAchieving low carbon buildings is seen as a key concept in order to reduce carbon emission and mitigate climate change. In contrast to operational emission, material related embodied carbon (EC) in the built environment plays a pivotal role, with the continuous consumption of high carbon emitting materials. This research relates to the ‘Cradle-to-Gate’ system boundary, while limiting its focus on building design stage decisions. A hybrid analysis approach was adopted - a bottom-up process with steps encompassing mass analysis, EC calculation, highlighting carbon hotspots, and ultimately the identification of critical building components. As a case study, multi-storey housing was selected as a critical building typology, in Sri Lanka. The results reveal ‘walls’ as a carbon hotspot that needs to be explored in strategies for mitigation. Substantial EC savings were seen in the selection of fly ash blocks as an alternate material to clay brick or cement block. Changes to the configuration of walls, specifically, bonding patterns and non-inclusion of a plaster layer, also showed savings. This paper, contributes to the understanding of material selection implications - in the cradle-to-gate stage - for the reduction of carbon emissions in mid-rise housing, in the context of Sri Lanka.