Publications by Type: Journal Article

2017
Vithanage M, Herath I, Almaroai YA, Rajapaksha AU, Huang L, Sung J-K, Lee SS, Sik Ok Y. Effects of carbon nanotube and biochar on bioavailability of Pb, Cu and Sb in multi-metal contaminated soil. Environmental Geochemistry and Health. 2017:1–12.
Bandara T, Herath I, Kumarathilaka P, Hseu Z-Y, Sik Ok Y, Vithanage M. Efficacy of woody biomass and biochar for alleviating heavy metal bioavailability in serpentine soil. Environmental geochemistry and health. 2017;39(2):391-401.
• Damayanthi BWR. Analyzing the Determinants of Entrepreneurial Activity Level in Urban Micro Enterprises in Sri Lanka. [Internet]. 2017. Publisher's Version
• Damayanthi BWR. Economics of Private Tutoring in Sri Lanka: A Phenomenological Study. Journal of Education and Practice. 2017;8(33):1-6.
• Damayanthi BWR. Multilevel Analysis of Urban Poverty in Sri Lanka”, Developing Country Studies. Journal of Education and Practice. 2017;7(6):1-25.
• Damayanthi BWR. Potential microenterprises Entrepreneurship in Urban informal sector in Sri Lanka. International Journal of Small Business & Entrepreneurship Research. 2017;5(6):1-25.
H.S. A, A.M.C A. Evaluation of Cutting Time and Waste Generation in Different Band Sawmills in Sri Lanka with Special Reference to Teak Timber. Proceedings of International Forestry and Environment Symposium [Internet]. 2017;2017(22):238. Publisher's VersionAbstract
In recent years, due to rising raw material and labor costs, increasing attention is being devoted to improve wood sawing practices. While a high cutting rate is still among the most desired characteristics, other factors such as improved cutting accuracy and surface quality, reduced kerf losses, noise, downtime, and maintenance of the machine are becoming increasingly important. However, band sawmilling have advantages over circular saws which include higher cutting speeds lower kerf waste, and typically lower noise levels. Considering above advantages several Sri Lankan companies have now established band saw milling factories. Thus the key objectives of this study were to evaluate cutting time of band sawmills and to investigate waste generation. Three different band saws (TRAK-MET TTP 600 premium; TM, Wood-Mizer LT20; WM, and Veheran; V) which are commonly used in Sri Lanka were used to this study. Evaluation of cutting time and waste generation in different band sawmills were done with special reference to Teak timber. Results show that the fastest cutting time in WM (mean cutting time of 27s), medium cutting time in TM (mean cutting time of 60s) and the slowest cutting time in Veheran (mean cutting time of 180s). The factors such as tooth profile, setting value, sharpening frequency, status of lubrication, tensioning pressure of the blade and capacity and the condition of the machine may have affected to the fastest cutting time. According to the results of evaluation of saw dust Veheran showed the highest wastage owing to high kerf and factors such as poor lubrication, lower tensioning pressure. Moreover, cutting time negatively correlated with the lubrication and saw tension in band sawmills. Therefore, it can be concluded that proper saw mill management is necessary for reduction of timber wastage and increase the efficiency of the industry.
Wijekoon WAS. Evolution of global agriculture and modern usage of agrochemicals: An analysis based on environment and Social impact in Sri Lanka. International Journal of Humanities and Social Science Research. 2017;3(II):72-76.
Kanthi M, Perera S. Factors affecting females' employment in the urban informal sector in Colombo district, Sri Lanka. International Journal of Humanities and Social Science Research [Internet]. 2017;3(10):49-55. Publisher's Version
Seneviratne M, Rajakaruna N, Rizwan M, Madawala HMSP, Sik Ok Y, Vithanage M. Heavy metal-induced oxidative stress on seed germination and seedling development: a critical review. Environmental geochemistry and health. 2017:1-19.
Wijesekara H, Bolan NS, Thangavel R, Seshadri B, Surapaneni A, Saint C, Hetherington C, Matthews P, Vithanage M. The impact of biosolids application on organic carbon and carbon dioxide fluxes in soil. Chemosphere. 2017;189:565-573.
Etampawala T, Tehrani M, Nematollahi A, He L, Dadmun M. The impact of solvent doping on the morphology and performance of spray-coated PEDOT: dPSS: A USANS and SANS study. Organic Electronics. 2017;51:86-93.
U SRMS, C KBMA, WTPSK S, C JG. In Vitro Propagation of Kaempferia Galanga (Zingiberaceae) and Comparison of Larvicidal Activity and Phytochemical Identities of Rhizomes of Tissue Cultured and Naturally Grown Plants. Journal of Applied Biotechnology & Bioengineering [Internet]. 2017;2(4). Publisher's VersionAbstract
Vegetative propagation of K. galanga Linn (Zingiberaceae) cannot fulfill the current demand for planting material and tissue culture offers an alternative means for mass propagation. Experiments were carried out on propagation of plants through direct organogenesis and comparison of larvicidal activity and phytochemicals present in rhizome of natural and tissue cultured plants in order to confirm the potential use of tissue cultured plants as an alternative to natural plants in commercial scale productions. In vitro shoot induction was optimized with rhizomee bud explants grown on MS medium supplemented with 2.0 mg/L Benzyl amino purine (BAP) and 0.5 mg/L IAA (Indole-3-acetic acid). MS medium supplement with 1.0 mg/L IAA and 0.2 mg/L Indol-3-butric acid (IBA) was identified as the best medium for root induction. Rooted plantlets were acclimatized successfully (100%) in a mixture of soil: sand: compost (1: 1: 1). Hexane found to be a better solvent for extraction of phytochemicals over methanol and the 50% hexane extract showed the highest larvicidal activity against the fourth instar larvae of A. aegypti. GC-MS analysis revealed the existence of the nine key compounds in both samples tested confirming the possibility of using tissue cultured plants as a substitute for natural plants in medicinal purposes.
Kumarathilaka P, Vithanage M. Influence of Gliricidia sepium Biochar on Attenuate Perchlorate-Induced Heavy Metal Release in Serpentine Soil. Journal of Chemistry. 2017;2017.
Wijekoon WAS. The Influence of Robots on the Human Society. International Journal of Humanities and Social Science Research (IJHSSR). 2017;3(III).
Ilankoon IMPS, Goonewardena CSE, Fernandopulle RC, Perera PPR. An Insight to How Estate Women in Sri Lanka Manage Abnormal Vaginal Discharge. Iranian journal of public health. 2017;46(2):268.
Mayakaduwa SS, Herath I, Sik Ok Y, Mohan D, Vithanage M. Insights into aqueous carbofuran removal by modified and non-modified rice husk biochars. Environmental Science and Pollution Research. 2017;24(29):22755-22763.
Silva DPHHPN, Lanel GHJ, Perera MTM. Integer Quadratic Programming (IQP) Model for Cut Order. International Organization of Scientific Research-Journal of Mathematics (IOSR-JM) [Internet]. 2017;13(2):76-80. Publisher's Version
Vithanage M, Wijesekara H, Mayakaduwa SS. Isolation, purification and analysis of dissolved organic carbon from Gohagoda uncontrolled open dumpsite leachate, Sri Lanka. Environmental technology. 2017;38(13-14):1610-1618.
Adikaram. M, Pitawala A, Ishiga H, Jayawardana D. I–P2O5 diagrams as an indicator of depositional environment in marine sediments: preliminary findings (Sri Lanka). Environmental Earth Sciences. 2017.

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