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 Embargo Review of Existing Literature on the Impact of Green Supply Chain Management Practices on Organisational Performance(University of Nigeria Department of Mass Communication, 2026-01) de Zoysa, A.T; Ranathunga Arachchi, D.T; Gunasekara, D.C; Bandara, H.N; Refaie, C.S.R.B; Lokeshwara, A.ABackground: Green supply chain management (GSCM) has gained prominence as more organisations seek to strike a balance between the objectives of sustainable operations and financial performance. The importance of understanding the implications of GSCM practices for organisational outcomes is increasing, given mounting environmental pressures and the need to compete globally. Objective: This research assesses the impact of GSCM practices on the organisation's economic, environmental, social, and operational performance, and identifies key themes, theoretical considerations, and gaps in the literature. Methodology: The systematic literature review method was employed. Overall, 60 peer-reviewed articles published in the last 12 years (2013-2025) were retrieved from major academic databases, including Emerald Insight, ScienceDirect, IEEE Xplore, and Wiley. Strict cleaning and screening were based on Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA). The thematic synthesis was used as one of the data analysis techniques, with the emphasis on sampling characteristics and conceptual frameworks, methodological designs and reported outcomes. Consistency of the reviewed research, as well as the validity and reliability of the studies, were taken into consideration to ensure the trustworthiness of the findings. Results: As indicated in the review, GSCM practices are effective in enhancing operational efficiency, environmental performance, social responsibility, and economic performance. Firm size, organisational capabilities, institutional pressures, and supply chain integration are among the factors that moderate the effectiveness of GSCM practices. Conclusion: GSCM has continued to be a strategic force towards sustainable and organisational performance. Results attest to their important role in improving financial performance and environmental regulation. Unique Contribution: The research integrates emerging knowledge to provide a universal model of the complex nature of GSCM effects. It offers theoretical clarity, reveals emerging themes and creates gaps that will be filled by future research. Key Recommendation: Future research should involve cross-industry comparative experiences, sophisticated modelling, and an examination of the impact of digital technologies on the efficacy of GSCM.Publication Embargo Exploring Food Waste Management Practices: Insights from a Coastal Hotel in Sri Lanka(University of Nigeria Department of Mass Communication, 2025-01) Panapitiya, C; Dias, A; Aluthge, K; Ahamed, A; Weligodapola, M; Rathnayake, NBackground: Food waste is immense, accounting for over one-third of worldwide food production for human consumption, totalling 1.3 billion tons annually. Additionally, Sri Lanka's estimated daily food waste is 4000 tons, with the hotel and hospitality sector responsible for a notable percentage. Therefore, it is essential to understand how this amount of waste is generated and what strategies are being employed to manage it. Objective: The research intends to identify the causes of food waste and understand the main waste generation points and food waste mitigation techniques employed within the hotel. Methodology: This exploratory study employs a qualitative approach to examine food waste management practices at a coastal hotel in Sri Lanka’s western province. Researchers used purposive sampling, semi-structured interviews with four key informants, and participant and non-participant observations. Thematic analysis was used to analyse the data. Results: The findings demonstrate that the hotel implements various food waste management techniques, including operational, quality, and standards elements. These techniques vary from internal initiatives to external measures. Conclusion: Effective practices can reduce the waste generated throughout the hotel's food supply chain. This will ultimately result in better economic, environmental, and societal outcomes. Unique Contribution: This research provides useful insights and lays the groundwork for future research by addressing this timely issue prevailing within both the local and global hotel industry. These findings can be applied to other settings, such as households, retail, and emerging hotels and resorts.Publication Embargo Uniaxial compressive response of cement mortar with waste aluminium fibre sourced from electrical distribution cables(Springer Science and Business Media, 2025-01) Perera K.D.Y.G.; Ahamed Y.L.F; Somarathna H.M.C.C; Jayasekara D.A.B.P.M; Mohotti D; Raman S.NElectrical distribution and communication cables cease to function for transmission when their length is insufficient, and it is considered as it approaches the end of their useful lives. Further, the disposal techniques are not eco-friendly. This study aimed to evaluate the feasibility of cement mortar systems with the inclusion of aluminium fibre extracted from electrical distribution cables. Two diameters of 1.35 mm and 1.70 mm and two lengths of 10 mm and 15 mm fibres were used while incorporating four volume ratios, particularly 0.5%, 1.0%, 1.5%, and 2.0% to evaluate the effect of the length, diameter and volume ratios. The compression test and density test were performed to study the behaviour of Metal Fibre Reinforced Mortar (MFRM) systems under both dry and wet states. Compared to conventional mortar, the ultimate compressive strength of MFRM systems was increased up to 39.4% in 1.5% of fibre addition under the 28-day dry state, where the 1.5% volume ratio showed the best performance under compressive loads. Strain at ultimate strength, modulus of elasticity and strain energy also showed improvements with the fibre inclusion up to 74.4%, 87.3%, and 106.6% respectively. Fibres with higher aspect ratios showed significant effectiveness among the aforementioned fibre variations. The overall results highlighted that the MFRM with 1.5% of fibres performed expertly with 15 mm length and 1.35 mm diameter under compression loadsPublication Open Access The Green Pulse of Hospitality: Assessing Green Supply Chain Practices on Organisational Performance in the Sri Lankan Hotel Industry(Elsevier B.V., 2026-01-03) Bandara R.M.H.N; Ranathunga Arachchi R.A.D.T; Gunasekara L.D.C; De Zoysa N.A.T; Lokeshwara, Anuja A.; Refaie, Chapa S.R.B.In the modern competitive business environment, sustainability has become the key theme in organisational performance (OP), compelling organisations to adopt environmentally friendly operations in the business world. The hotel industry is a significant contributor to national economies, and it is steadily incorporating green practices to improve operational efficiency and reduce environmental impact. Though green supply chain management (GSCM) has been a subject of significant interest in manufacturing and logistic settings, GSCM in the hospitality industry, particularly in developing nations such as Sri Lanka, is still a largely unexplored area. To bridge this gap, the current study investigates the relationship between GSCM practices and OP with a particular focus on the moderating effects of hotel star classification. A cross-sectional, deductive research design was used, and Partial Least Squares Structural Equation Modelling (PLS-SEM) was the method of analysis. A web-based survey of 167 star-class hotels in Sri Lanka gained a high response rate of 88.44%. GSCM practices were represented as a second-order construct with five dimensions: eco design, green purchasing, internal environment management, investment recovery, and reverse logistics. The findings reveal that GSCM practices have a significant positive impact on OP. However, the star ratings of the hotels had no significant effect on this relationship, meaning the positive impact of GSCM practices are consistent across the industry. This finding indicates the need to investigate additional moderating variables such as ownership patterns and environmental certifications. Future comparative studies in various Asian nations with different cultural, legislative, and market settings may advance our understanding of GSCM practices in hospitality industry.Publication Open Access Analysis of physical and chemical properties of alternative substrate material for sustainable green roofs(Research Square, 2022-07-14) Kader, S. AGreen roof is the roof of a building that is partially or completely enfolded with vegetation and its associated components. It promotes the sustainability of buildings and provides comfort for urban ecosystem. We have investigated the viability of using organic waste as a growing medium. This study determines the most suitable growing substrate by investigating organic wastes of Sawdust, Wood bark, Bio char, Coir, Compost and Base medium under the parameters of density, moisture content, drought resistance and thermal resistance, contribution for vegetation growth, pH, electric conductivity and nutrient constituents. Investigation of chemical parameters is a unique aspect of this study. New methodologies using mathematical concepts were used to find thermal conductivity and EC of specimens in our research. Preliminary study results shows that the most substrate composition will comprise 60% growing medium and 40% base medium (fertilizer + potting mix). During the experimental studies, we have compared the test results of each organic waste specimens under the mentioned physical and chemical parameters. Base medium (90:10) has highest bearing capacity to withstand 2 external loads including vegetation and other imposed loads. Sawdust (60:40) exhibited optimum attributes for lightweight substrate by having least saturated unit weight, dry unit weight and the highest moisture content. In terms of drought resistance and vegetation growth, Bio char (60:40) was exceptional. Wood bark (60:40) exhibited the most convincing thermal resistance. The best characteristics in terms of pH, EC and nutrient content were exhibited by Sawdust (60:40), Coir (60:40) and Compost (60:40) correspondingly. Based on final ratings by considering all the experimental results, Coir (60:40) have emerged as the optimum growing medium in terms of physical and chemical properties. The authors emphasize to utilize this experimental study results into large-scale construction industries to promote the urban ecosystems through sustainable green roof constructions.Publication Open Access Sustainability of Hotels: Evidence from Tourism Industry in Sri Lanka(The Mattingley Publishing, 2020-05-24) Alahakoon, A. M. Y. U; Nagendrakumar, N; Madhavika, W. D. N; Weerawardhana, K. W. P. T. R; Wishwadeep, D. D. P; Anushani, D. M. SThe present studyexplores the sustainability level of the Sri Lankan hotels in the tourism industry.It wasobserved that the return on equity has been decreasing in the hotel companies though there is an increasing trend in the tourist arrivals in Sri Lanka(Weerasinghe et al., 2019). This unanswered problem raises the questionof whether the hotels in the tourism industry are heading towards bankruptcy. This study used secondary data from the annual reports of 34 listed hotels, which are registered in the Colombo Stock Exchange during the last five years (2015-2019). This study applied the Altman’s original Z score model (1968) which is the most accurate and reliable in forecastingthe sustainability of the firms by using ratio analysis method. The finding of the study reveals that 91% of the hotels are in the distress zone, 9% safe zone and none in the gray zone. The present study is significant since it shedsthe light, through the empirical evidence on the scary financial environment, which signals the hotels in the tourism industry in Sri Lanka,about the doubt of going concern