Browsing Research Publications by Title

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  • Solar powered automated irrigation system 
    Nagahage, ISP; Dilrukshi, EAA [Conference-Full-text]
    The variation of spatial and temporal distribution of available water for irrigation makes significant demand on water conservation techniques. Hence solar powered Automated Irrigation System provides a sustainable ...
  • Solar powered domestic waste dryer 
    Alahakoon, AMMT; Kandewaththa, TH; Galhenage, AS [Conference-Abstract]
    Kitchen garbage, in general, is getting to be a big problem in urbanized area. Usually, in Sri Lanka municipal councils collect kitchen garbage once a week. Thus, week-long garbage at homes creates a strong unpleasant ...
  • Solar powered mini air conditioner for automobiles 
    Gunawardhana, HPB; Chamath, LG; Galhenage, AS [Conference-Abstract]
    As a tropical country, Sri Lanka experiences sunny conditions throughout the year. Most of the time vehicle users find it difficult to obtain shady places for their parking purposes. The temperature rise of the automobiles ...
  • Solar powered naval patrol boat operating on dye-sensitized solar cells (DSSC'S) utilizing fruit and spice extracts 
    Attanayake, CIF; Premachandra, BAJK; De Alwis, AAP [Conference-Abstract]
    Preliminary investigations on the identification of natural pigments in the dye-sensitization of nanocrystalline Ti02 were carried out. Fresh extracts of Mangoostein, Rambutan, Mango, Tomato, Carrot, Kingcoconut, Pumpkin, ...
  • Solar thermal collector 
    Perera, KKCK; Malika, MS [Conference-Extended-Abstract]
    According to the statistics on energy consumption by source, fossil fuel is dominant; this will possibly result in environmental pollution causing certain hazards to all living matter. But there should be some way to get ...
  • Solid state transformer technologies are cost estimation 
    Jayarathna, CU; Binduhewa, PJ; Lidula, NWA; Samaranayake, L; Ekanayake, JB
    Local direct current (dc) grids, supports by local storage and local renewables in residential and commercial buildings are identified as the key enablers for demand reduction and demand flexibility (demand response). It ...
  • Solid waste generation, characteristics and management within the households in Sri Lankan urban areas 
    Wijerathna, DMCB; Lee, K; Koide, T; Jinadasa, KBSN; Kawamoto, K; Iijima, S; Herath, GBB; Kalpage, CS; Mangalika, L [Conference-Full-text]
    Municipal Solid Wastes are becoming a multidimensional threat to the Sri Lankan environment. Especially the solutions are needed to reduce the amount of the environmental problem caused by haphazard solid wastes disposal ...
  • A solution for an unsafe ferry crossing at the Kalu Ganga: a case study at Galpatha 
    Fernando, PA; Baddewala, PK; Thabrew, DR; Wijekoon, C; Fernando, NS; Gunarathne, NH; Janujan, A; Dayarathna, H; Pathirana, DK [Conference-Abstract]
    People travelling between Galpatha, Bolossagama and its surrounding area face a challenge in crossing the Kalu Ganga using a privately operated ferry. Every year, it has been recorded that a significant number of accidents ...
  • A solution for the skilled labour scarcity of cinnamon processing through mechanisation 
    Adhikari, AMT [Conference-Extended-Abstract]
    Sri Lanka is known worldwide for more than several centuries for distinct flavours of the natural spices grown in the country. Cinnamon is the leading spice in the country in terms of foreign revenue earnings. Today, Sri ...
  • Solve manufacturer's pallet loading problem (mplp) with practical warehouse constraints 
    Gunawardena, K; Wijayanayake, A; Kavirathna, K [Conference-Full-text]
    This study presents a two-phase algorithm for solving the Manufacturer's Pallet Loading Problem (MPLP) while considering overhang and stability constraints using a block approach. The MPLP involves determining a loading ...
  • Solvothermal reaction and piezoelectric response of oriented KNbO3Polycrystals 
    Yang, D; Wang, Y; Li, L; Yao, M; Zhang, W; Gu, H; Zhang, S; Fan, M; Sewvandi, GA; Hu, D [Article-Full-text]
    KNbO3 (KN) piezoelectric polycrystals were prepared by a two-step solvothermal reaction process with the managed organic solvents as reaction mediums at a low temperature for a short time. In the solvothermal reaction ...
  • Some Engineering Aspects of Ancient Structures 
    Fernando, PLN; Dias, WPS [Conference-Full-text]
    Large monumental constructions were a prominent feature in ancient Sri Lanka. Construction materials and techniques used in the past can be of significant interest to the modern engineer. The evolution of brick sizes during ...
  • Some Engineering Aspects of Ancient Structures 
    Fernando, PLN; Dias, WPS [Conference-Full-text]
    Abstract: Large monumental constructions were a prominent feature in ancient Sri Lanka. Construction materials and techniques used in the past can be of significant interest to the modern engineer. The evolution of brick ...
  • Some measurements on energy efficient compact fluorescents 
    Lucas, JR [Conference-Abstract]
  • Some new results on the eigenvalues of complex non-central Wishart matrices with a rank-1 mean 
    Dharmawansa1, P [Article-Full-text]
    LetWbe an n×n complex non-centralWishart matrix with m (≥ n) degrees of freedom and a rank-1 mean. In this paper, we consider three problems related to the eigenvalues of W. To be specific, we derive a new expression for ...
  • Some properties of hardened cement paste and reinforcing bars upon cooling from elevated temperatures 
    Dias, WPS [Article-Full-text]
    The post-cooling properties of reinforced concrete constituents are of great relevance in the assessment of a structure for re-use after fire. The expansive rehydration of dissociated calcium hydroxide on post-cooling ...
  • Sonar navigation aid for the visually impaired 
    Sivakumaran, P; Jeyarajah, K; Kanaganayagam, I; Gopalasingham, C; Kulasekere, EC [Conference-Extended-Abstract]
    A navigational aid has been designed and developed, with die aim of increasing the mobility of the visually impaired. The system operates based on the principle of echolocalion and alerts the user of obstacles in the ...
  • Sound analysis-based animal recognition and repel system for agriculture 
    Dissanayake, CM; Tennakoon, P [Conference-Full-text]
    Crop damage by animals and insects is a significant challenge faced by the agricultural sector. Recently, the number of crop damages due to animal interventions has increased. As a solution to this problem, an animal ...
  • Sound localization : human Vs. machine 
    Jayaweera, WGN; Jayasekara, AGBP; Abeykoon, AMHS [Conference-Abstract]
    The Human shows a remarkable capability in localizing a sound source and navigating towards it. In the current context of robotic applications, machinery models have been developed, so that they can be used in sound source ...
  • South Asian and societal challenges : a regional perspective 
    Amaratunga, D; Haigh, R; Liyanage, C; Hettiarachchi, S
    This paper is a summary of the South Asian region’s status and interests concerning the seven thematic societal challenges identified under the EU’s Horizon 2020 research programme: Health, demographic change and wellbeing; ...