Thesis & Dissertation: Recent submissions

Now showing items 1-20 of 4648

Improvement of thermoelectric properties in nanostructures with constrictions

Henadeera, PB [Thesis-Abstract]

The results of a study into the development of novel Thermoelectric (TE) materials by engineering nanoscale constrictions are presented in this thesis. The aim of this investigation lies in the development of an enhanced ...
Development of a bio-inspired lower extremity exoskeleton with a passive-powering system

Ranaweera, RKPS [Thesis-Abstract]

Manual handling is an indispensable activity in any occupational setting. It is any activity that requires the use of human force for lifting, carrying or moving an object. Such repetitive and tiring tasks may cause ...
Development of a hybrid air purification unit for the indoors in tropics

Weerasinghe, KGNH [Thesis-Abstract]

Indoor air pollution poses a critical concern in today's world, influenced by various factors. Ensuring a safe indoor environment demands addressing the profound impact of pollution. Multiple strategies have been deployed ...
Risk-based chemical process route selection considering inherent environmental friendliness

Rathnasekara, PK [Thesis-Abstract]

Chemical process route selection is one of the key decisions taken during the preliminary design stage of process plant development. A chemical process route is defined as the raw material(s) and the sequence of reaction ...
A Framework for effective stakeholder management within the decision-making process of building energy efficiency retrofits

Fasna, MFF [Thesis-Abstract]

Though currently many organisations are under pressure to adopt Building Energy Efficiency Retrofits (BEER) and minimise energy consumption, still there is comparatively low level of implementation of BEER. This has been ...
Study of small–signal stability of a renewable integrated power system using a dynamic phasor approach

Lakshan, WAD [Thesis-Full-text]

The transition trend towards renewable energy in the modern world shows a rapid increment of renewable power sources in electrical power systems. Wind energy and solar energy can be considered as the leading energy sources ...
Appraising ageing in place attributes and wellbeing of elders in the tropics

Sajjad, SRM [Thesis-Abstract]

The concurrence of demographic shifts and warming climate raises heightened concerns for the well-being of older adults residing in tropical regions. Climate change-induced heat waves pose a significant threat to indoor ...
Insights into the heterogeneity of coal fly ash waste

Kanesalingam, B [Thesis-Full-text]

Coal is a well-known workhorse for power generation, particularly in developing countries, due to its favourable economic benefits such as low cost, wide availability, and minimal infrastructure. However, coal-fired power ...
Early detection of Sinhala language fake news in social media networks

Hathnapitiya, H.G.H.S [Thesis-Abstract]

With human evolution, people invented new technologies to make life easier. In the early twentieth century, people read newspapers, listened to radio, and watched television to gather information. With the refinement of ...
Sinhala code-mixed text translation using neural machine translation

Archchana, K [Thesis-Full-text]

Mixing two or more languages together in communication is called as code-mixing. In South Asian communities it has become famous due to bilingualism or multilingualism. Sinhala-English code-mixed(SECM) text is the most ...
Optimization of bio-chemical conversion of rice straw to 5-(hydroxymethyl) furfural

Wanninayake, PN [Thesis-Full-text]

Agricultural waste-based biorefinery merges waste and production sectors to develop a circular economy. One such biorefinery product, 5-(hydroxymethyl) furfural (5-HMF) has gained increasing interest as a versatile platform ...
Investigation of the effect of pretreatment methods on lipid yield and fatty acid profile of locally isolated microalgae species

Sandani, WAP [Thesis-Abstract]

The introduction of a novel chemical cell disruption method with economic and environmental feasibility to increase the lipid extraction yield is of paramount importance to enhance the commercialization drive of microalgae ...
Climate change impact on the spatial distribution of droughts in Kirindi oya and Maduru oya dry zone river basins in Sri Lanka

Wijekoon, WMRTY [Thesis-Full-text]

Drought, a consequence of prolonged precipitation deficiencies, is a significant hazard exacerbated by climate change. Sri Lanka, highly susceptible to extreme climatic events, faces drought as its most prominent hazard, ...
Process simulation-based life cycle assessment for fuel-grade bioethanol production from paddy rice straw

Jayasundara, UWPM [Thesis-Full-text]

For the life cycle scenario of bioethanol production from unutilized rice straw, the life cycle stage of paddy rice cultivation can be excluded with a zero-inventory allocation rule, i.e., rice straw with no applied ...
Study of the behavior of multi-metallic systems under high-velocity impact loads

Wijekoon, KMSR [Thesis-Full-text]

The behavior of multi-material layered systems under high-velocity impact loads, such as impact and blast scenarios, has gained significant attention from researchers over the past years due to its extensive applications ...
Optimizing mechanical properties of concrete using sugarcane bagasse ASH

Sankeeth, S [Thesis-Full-text]

In this study, sugarcane bagasse ash is recognized as a pozzolan, and the examination delves into its impact on the structural properties and durability of concrete. A signif icant volume of bagasse ash is generated ...
Feasibility of using lightweight load-bearing panel systems in duplex apartments of tall buildings

Mahaarachchi, TN [Thesis-Abstract]

As an inevitable result of the growing population in recent times, requirements for housing facilities, land scarcity, and overexploitation of natural resources have created many problems, both environmental and social. ...
Characterization and modeling of thermo-mechanical behavior of solid tires with graphite as a heat transfer enhancer

Somaweera, D [Thesis-Abstract]

The solid resilient tire construction consists of three layers namely tread, cushion and base. The cushion or the middle layer provides a comfortable ride but also needs to reduce the heat buildup when the tire is subjected ...
Investigating the role of social media platforms in disaster risk communication in Sri Lanka

Jayathilaka, HADGS [Thesis-Full-text]

Disaster Risk Communication (DRC) is one of the key elements adopted by the global community to reduce the adverse effects of catastrophic disasters. Several drawbacks were identified that caused the ineffectiveness of the ...
Investigating community resilience to climate change : application of economic models

Nadeetharu, BKM [Thesis-Full-text]

Climate change is a significant issue in the present which impacts the economic status of communities by affecting their livelihoods. To investigate the problems of climate change on communities, economic models of climate ...

Now showing items 1-20 of 4648

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