Journals and Magazines: Recent submissions

Now showing items 361-380 of 1745

Running costs indices for commercial buildings using the hedonic price imputation approach: a case of Sri Lanka

Geekiyanage, D; Ramachandra, T [Article-Full-text]

Running expenses of a building consume a substantial share of its total life cycle cost and range between 70 and 80% in commercial buildings. Despite this, investment decisions are primarily based on construction costs ...
Twenty-first-century projections of shoreline change along inlet-interrupted coastlines

Bamunawala, J; Ranasinghe, Ranasinghe; Dastgheib, A; Nicholls, RJ; Murray, AB; Barnard, PL; Sirisena, TAJG; Duong, TM; Hulscher, SJMH; van der Spek, A [Article-Full-text]

Sandy coastlines adjacent to tidal inlets are highly dynamic and widespread landforms, where large changes are expected due to climatic and anthropogenic influences. To adequately assess these important changes, both oceanic ...
Design Approach to Rehabilitation: Developing Therapy Assistive Products for Children With Hemiplegic Cerebral Palsy

Perera, GYASI; Ranasinghe, WMND [Article-Full-text]

Therapy plays an important role in rehabilitation of children suffering from physical disabilities. Disability conditions like Hemiplegic Cerebral Palsy require vigorous therapy measures, which could be unappealing to ...
Performance evaluation of cement mortar produced with manufactured sand and offshore sand as alternatives for river sand

Arulmoly, B; Konthesingha, C; Nanayakkara, A [Article-Full-text]

This study investigates the fresh and hardened state properties of cement-sand mortar comprising manufactured sand and offshore sand as alternatives for a complete replacement of river sand. Two types of manufactured ...
Challenges in multi-agency collaboration in disaster management: A Sri Lankan perspective

Abdeen, FN; Fernando, T; Kulatunga, U; Hettige, S; Ranasinghe, KDA [Article-Full-text]

This study was aimed at investigating the current challenges prevailing in relation to multi-agency collaboration during disaster management and at the strategies that should be implemented in order to overcome such challenges. ...
A New relative risk Index for hospitals exposed to Tsunami

Baiguera, M; Rossetto, T; Palomino, J; Dias, P; Lopez-Querol, S; Siriwardana, C; Hasalanka, H; Ioannou, I; Robinson, D [Article-Full-text]

The failure of hospitals in recent tsunami have caused extensive social and economic losses. A simple but quantitative approach is required to assess the resilience of healthcare systems to tsunami, which relates not only ...
Efficacy of using radar-derived factors in landslide susceptibility analysis: Case study of Koslanda, Sri Lanka

Ranasinghe, AKRN; Bandara, R; Gnanapriya, U; Puswewala, A; Dammalage, TL [Article-Full-text]

Through the recent technological developments of radar and optical remote sensing in (i) the areas of temporal, spectral, spatial, and global coverage; (ii) the availability of such images either at a low cost or free of ...
Variation of mechanical properties of bituminous coal under CO2 and H2O saturation

Zhang, XG; Ranjith, PG; Ranathunga, AS; Li, DY [Article-Full-text]

CO2 injections into coal seams can boost the recovery of coalbed methane (CBM), while simultaneously sequestering a greenhouse gas. However, alteration of the mechanical attributes of coal is observed during CO2 injection. ...
The influence of CO2 saturation time on the coal gas flow: Fractured bituminous coal

Zhang, X; Gamage, RP; Perera, MSA; Haque, A; Ranathunga, AS [Article-Full-text]

The permeability reduction due to the coal matrix swelling induced by the adsorption of CO2 is the major concern during enhanced coalbed methane recovery (ECBM) as well as CO2 sequestration in coal reservoir. Many problems ...
Online quantitative partial discharge monitor based on interferometry

Xue, L; Zhu, Y; Yang, C; Kumarawadu, S [Article-Full-text]

Interferometry-based online partial discharge (PD) monitor presented in this paper can detect the occurrence of PD sensitively, evaluate the peak value of the discharge inception voltage with random waveform and the damage ...
Sub- and super-critical carbon dioxide flow variations in large high-rank coal specimen: An experimental study

Zhang, X; Ranjith, PG; Ranathunga, AS [Article-Full-text]

Many experimental studies to date have investigated CO2 sequestration in coal using small-scale samples (usually less than 100mm in length), and the results may not be applicable to large-scale samples which better ...
Optimized adaptive cvercurrent protection using hybridized nature-Inspired algorithm and clustering in microgrids

Senarathna, TSS; Hemapala, KTMU [Article-Full-text]

Microgrids have been popularized in the past decade because of their ability to add distributed generation into the classic distribution systems. Protection problems are among several other problems that need solutions in ...
Pyrolysis of single biomass particle using three-dimensional Computational Fluid Dynamics modelling

Wickramaarachchi, EAMKP; Narayana, M [Article-Full-text]

In the present work, the drying and pyrolysis process of a thermally thick single wood particle has been investigated. A novel approach has been made considering the two phases gas and solid inside the particle are not in ...
Experimental investigation of the influence of CO2 and water adsorption on mechanics of coal under confining pressure

Zhang, X; Ranjith, PG; Lu, Y; Ranathunga, AS [Article-Full-text]

Adsorption of CO2 into the coal matrix causes significant alterations in coal's mechanical properties and this process may be further complicated by water+CO2 saturation. The aim of this study is therefore to investigate the ...
Effect of post-annealing on microstructure and piezoelectric properties of ZnO thin film for triangular shaped vibration energy harvester

Zhang, X; Wang, P; Liu, X; Zhang, W; Zhong, Y; Zhao, H; Shi, S; Jin, S; Amarasinghe, YWR [Article-Full-text]

In this paper, a triangular shaped piezoelectric vibration energy harvester (TS-PVEH) with zinc oxide (ZnO) thin films as the piezoelectric layer is reported. The effect of post-annealing temperature on the microstructure ...
Holocene Indian Ocean sea level, Antarctic melting history and past Tsunami deposits inferred using sea level reconstructions from the Sri Lankan, Southeastern Indian and Maldivian coasts

Yokoyama, Y; Hirabayashi, S; Kazuhisa, G; Okuno, J; Sproson, AD; Haraguchi, T; Ratnayake, N; Miyairi, Y [Article-Full-text]

Holocene sea level change in the northern Indian Ocean was studied using geochemical and geophysical approaches. Molluscs were sub-sampled for radiocarbon dating from sediment cores retrieved from a south Sri Lankan ...
A 3-D sparse FIR frustum filter for enhancing broadband plane waves

Wijesekara, RT; Edussooriya, CUS; Bruton, LT; Agathoklis, P [Article-Full-text]

A 3-D FIR frustum filter having sparse coefficients is proposed for enhancing broadband plane waves received by uniform aperture arrays. Motivated by the design technique of 1-D interpolated FIR filters, the proposed ...
Design and Implementation of 5-D IIR Depth Velocity Filters for Light Field Video Processing

Wijenayake, C; Liyanage, N; Edussooriya, C; Seatang, H; Agathoklis, P; Bruton, L [Article-Full-text]

The design and hardware implementation of a lowcomplexity signal processing algorithm is proposed for real-time depth-velocity filtering in 5-D light field videos (LFVs). The proposed design is based on a stable 5-D ...
Reconstruction of the upper gondwana palaeoclimates based on palynostratigraphy, palynofacies and sedimentology of the Jurassic sequences in the Tabbowa Basin, Sri Lanka

Weerakoon, WAP; Aggarwal, N; Jha, N; Jayasena, HAH; Joshi, H; Yakandawala, D; Chandrajith, R; Perera, KVGS; Ratnayake, NP [Article-Full-text]

The palynological study of the Tabbowa sediments from Sri Lanka reveals predominant Jurassic gymnospermous pollen assemblage (Araucariacites australis, A. cooksonii, A. fissus and Callialasporites dampieri with spore ...
Evaluating adaptation measures for reducing flood risk: A case study in the city of Colombo, Sri Lanka

Wagenaar, DJ; Dahm, RJ; Diermanse, FLM; Dias, WPS; Dissanayake, DMSS; Vajja, HP; Gehrels, JC; Bouwer, LM [Article-Full-text]

Many cities around the world face frequent problems with flooding, which is expected to get worse due to anthropogenic climate change and further urbanization. To tackle these problems often local infrastructural adaptation ...

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