Journals and Magazines: Recent submissions

Now showing items 281-300 of 1745

Bond characteristics of CFRP strengthened concrete members bonded using Modified Engineered Cementitious Composite

Widanage, C; Gamage, JCPH; De Silva, GIP [Article-Full-text]

This study focuses on the development of an insulating cementitious adhesive for bonding Carbon Fibre Reinforced Polymer (CFRP) fabrics to a concrete surface. The epoxy adhesive which is the generally used adhesive for ...
A piezoelectric power generator based on axisymmetrically distributed PVDF array for two-dimension vibration energy harvesting and direction sensing

Wei, X; Liu, X; Zheng, C; Zhao, H; Zhong, Y; Amarasinghe, YWR; Wang, P [Article-Full-text]

To achieve vibration energy collection in multiple directions, this paper reports a piezoelectric power generator with an axisymmetrically distributed PVDF array, which is used to acquire 2D vibration energy and monitor ...
Experimental investigation on flexural behaviour of vertically-curved circular-hollow steel sections strengthened with externally bonded carbon fibre reinforced polymer

Weerasinghe, KAB; Gamage, JCPH; Fawzia, S; Thambiratnam, DP [Article-Full-text]

The behaviour of Carbon Fibre Reinforced Polymer (CFRP) strengthened vertically curved beams of Steel Circular Hollow Sections (SCHS) was studied. Sixteen numbers of curved beams with 1200 mm span having four radii of ...
Carbon capturing for emissions reduction at building level: A market assessment from a building management perspective

Pokhrel, SR; Hewage, K; Shrestha, GC; Karunathilake, H; Li, E; Sadiq, R [Article-Full-text]

Global climate change is a key concern in today’s world, especially with the growth of population and industrial activities. One of the biggest sources of climate change is anthropogenic greenhouse gas emissions. In Canada, ...
Community-level decentralized energy system planning under uncertainty: A comparison of mathematical models for strategy development

Prabatha, T; Karunathilake, H; Shotorbani, AM; Sadiq, R; Hewage, K [Article-Full-text]

Distributed energy systems renewable energy are one solution to the environmental and economic concerns of energy use. While energy planning and optimization have been conducted mainly as a mathematical exercise, practical ...
Comparative evaluation of solar PV hosting capacity enhancement using Volt-VAr and Volt-Watt control strategies

Chathurangi, D; Jayatunga, U; Perera, S; Agalgaonkar, AP; Siyambalapitiya, T [Article-Full-text]

Integration of solar photovoltaic systems to low-voltage distribution networks is witnessing an unprecedented growth in many parts of the world. Although solar photovoltaic generation is of significant benefit from a ...
Comparative life-cycle cost (LCC) study of green and traditional industrial buildings in Sri Lanka

Weerasinghe, AS; Ramachandra, T; Rotimi, JOB [Article-Full-text]

The demand for green buildings is growing, but the trend is below the expected level due to the perceived higher construction cost required by building investors. In addition, the industry or the practitioners knowledge ...
Topochemical conversion of the discontinuous-zone-axis to form bismuth titanate oriented polycrystal nanocomposites

Wang, Y; Yang, D; Yao, M; Li, L; Huang, Z; Zhang, W; Han, Y [Article-Abstract]

Bismuth titanate based materials have wide potential applications in the fields of dielectrics, piezoelectrics, ferroelectrics, catalysis and energy storage. In this study, a two dimensional (2-D) layered H1.07Ti1.73O4·nH2O ...
Cultivation of microalgae in palm oil mill effluent (POME) for astaxanthin production and simultaneous phycoremediation

Fernando, JSR; Premaratne, M; Dinalankara, DMSD; Perera, GLNJ; Ariyadasa, TU [Article-Full-text]

Haematococcus pluvialis and Chromochloris zofingiensis are freshwater microalgae exploited to produce the high-value carotenoid, astaxanthin. Nonetheless, a copious amount of freshwater is consumed for microalgae cultivation, ...
Finite element analysis of lightweight composite sandwich panels exposed to fire

Upasiri, IR; Konthesigha, KMC; Nanayakkara, SMA; Poologanathan, K; Gatheeshgar, P; Nuwanthika, D [Article-Full-text]

Composite Sandwich Panels (CSP) are a novel type of wall panels, which has gained immense attraction in the construction industry due to its better mechanical performance with lighter weight. Finite Element Model (FEM) was ...
Cultural issues of community resettlement in Post-Disaster Reconstruction projects in Sri Lanka

Siriwardhana, SD; Kulatunga, U; Samaraweera, A; Shanika, VG [Article-Full-text]

Resettlement is identified as a fundamental stage in Post- Disaster Reconstruction (PDR) projects, which has proved to be crucial in determining successful or unsuccessful performance in terms of community culture. Currently, ...
Rank-1 Matrix Approximation-Based Channel Estimation for Intelligent Reflecting Surface-Aided Multi-User MISO Communications

Unknown author [Article-Full-text]

The acquisition of channel state information is an essential step in enabling intelligent reflecting surfaces (IRSs) for wireless communications. In this letter, we introduce a novel procedure to estimate the cascaded ...
Customer heterogeneity and innovation-based competitive strategy: a review, synthesis, and research agenda

Wijekoon, A.; Salunke, S.; Athaide, GA [Article-Full-text]

Managing customer heterogeneity (CH), that is, differences among customers (e.g., consumers, business firms) is an important, yet challenging consideration for firms seeking innovation-based competitive advantage. To ...
Projected streamflow and sediment supply under changing climate to the coast of the kalu river basin in tropical sri lanka over the 21st century

Sirisena, TAJG; Maskey, S; Bamunawala, J; Coppola, E; Ranasinghe, R [Article-Full-text]

Tropical countries are already experiencing the adverse impacts of climate change. This study presents projections of climate change-driven variations in hydrology and sediment loads in the Kalu River Basin, Sri Lanka. ...
Performance of severely damaged reinforced concrete flat slab-column connections strengthened with carbon fiber reinforced polymer

Silva, MAL; Dedigamuwa, KV; Gamage, JCPH [Article-Full-text]

The punching shear failure of a slab‐column connection is a sudden catastrophic failure. The majority of studies have been focused on the strengthening aspects of non‐cracked slab‐column connections. However, the ...
License plate recognition using neural architecture search for edge devices

Shashirangana, J; Padmasiri, H; Meedeniya, D; Perera, C; Nayak, SR; Nayak, J; Vimal, S; Kadry, S [Article-Full-text]

The mutually beneficial blend of artificial intelligence with internet of things has been enabling many industries to develop smart information processing solutions. The implementation of technology enhanced industrial ...
Development of sustainable mortar using waste rice husk ash from rice mill plant: Physical and thermal properties

Selvaranjan, Kajanan; Gamage, JCPH; De Silva, GIP; Navaratnam, S [Article-Full-text]

The rice processing industry generates a significant amount of rice husk ash (RHA) waste, which is considered as cost-efficient and environmentally friendly pozzolanic material. This study used RHA as a replacement for ...
Application of soft landings concept in Sri Lanka to narrow the building performance gap, enablers and barriers

Samarakkody, A; Perera, K. [Article-Full-text]

Purpose – Like in many other countries, in Sri Lanka, minimal attention is paid to the performance of a building after it has been taken over by its end-user. Hence, a gap often exists between the actual performance of ...
Enabling lean through human capacity building: an investigation of small and medium contractors

Ranadewa, KATO; Sandanayake, YG; Siriwardena, M [Article-Full-text]

Purpose: This paper investigates the lean enabling human capacities and develops a framework integrating individual, organisational and environmental level strategies to build human capacities for successful lean implementation ...
Dependancy of three phase induction motor derating aspects on complex voltage unbalance factor: A calorimetric and finite element simulation study

Sudasinghe, P; Jayatunga, U; Commins, P; Moscrop, J; Perera, S [Article-Full-text]

It is well known that three-phase induction motors have to be derated in the presence of supply voltage unbalance (negative sequence) exceeding a stipulated limit of 1% based on several widely used standards. Generally, ...

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