Engineering: Recent submissions
Now showing items 1-20 of 24
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Assessment of Groundwater Quality due to Leachate Generated from a Solid Waste Dumpsite
(2022-09-29)In Sri Lanka, one of the main sources of groundwater pollution is the leachate generated from solid waste dumpsites. Karadiyana landfill is located 2km from Ratmalana airport, which receives nearly 500 tons of Municipal ... -
Study of Issues in Sludge Disposal and Management in Wastewater Treatment Plants
(2022-09-29)Improper methods of treatment, disposal and management of sludge generated by wastewater treatment plants has become a major environmental issue at present. This research focuses on identifying the environmental impact ... -
Improving Turbidity Removal Efficiency in Slow Sand Filter during the Occurrence of High Turbidity Levels in Surface Water
(2022-09-29)The prominent drinking water treatment process practised to eliminate turbidity from surface water, especially during high turbidity occurrence in the surface water, is coagulation, sedimentation and rapid sand filtration ... -
Analysis of the Behavior of Improved Soil under Shallow Concrete Foundations
(2022-09-29)As a step towards sustainability and environmental protection, use of waste material and by-products in construction activities is becoming a trend. Quarry dust is a waste product of stone crushing process, which can be ... -
Current Phasor Measuring Device for Three Phase Distribution Lines
(2022-09-29)Protection and reliability are the most paramount considerations in the power system. Current measurement of distribution lines is essential for the power and quality evaluation purposes. The current measuring devices ... -
Genetic Algorithm-based Path Planning for an Unmanned Aerial Vehicle Considering Energy Consumption and Payload
(2022-09-29)Unmanned Aerial Vehicles (UAVs), more commonly known as drones, have a wide range of applications spread across various industries. Drones are plagued with several challenges concerning their limited battery life and ... -
Optimization of Coagulation and Flocculation Process in Kandana Water Treatment Plant
(2022-09-29)Coagulation and Flocculation process is used to remove colloidal particles and fine suspended materials from drinking water. Aluminium Sulphate /Alum is the most commonly used and widely available inorganic coagulants ... -
Identifications of Pathways for Phosphorus-based Product Recovery from Sewage Sludge using Multicriteria Decision Analysis for Sri Lankan Context
(2022-09-29)This study was carried out to inspect the suitability of 5 methods to produce phosphorus-based products using sewage sludge as an alternative to the rock phosphate demand to produce phosphate fertilizers. The considered ... -
Ceramic Tile Waste as Fine Aggregate for Marine Concrete Modules in Sri Lanka
(2022-09-29)Construction waste has a major impact on the environment. Reusing and recycling this waste can reduce the extraction of raw materials and help waste management. Therefore, this study was focused on ceramic tile waste ... -
Methods of Measuring CSF Pressure: A Review
(2022-09-29)Cerebrospinal fluid pressure is considered as one of the key diagnostic parameters to identify different pathological conditions related to the central nervous system. Different clinical methods have been used to measure ... -
Local Binary Pattern based Features for Prostate Cancer Detection
(2022-09-29)Prostate cancer is one of the most common cancers in males and one of the significant causes of cancer mortality. Most prostate malignancies are presently diagnosed based on an increased PSA level, despite this biomarker ... -
Predicting the Freezing of Gait in Parkinson’s Patients based on Machine Learning and Wearable Sensors: A Review
(2022-09-29)Freezing of Gait (FoG) is a common incapacitating complication in Parkinson’s patients, which will temporarily hinder the forward progression and will prevent them from re-initiating their normal gait. This can lead to ... -
An Empirical Analysis of the Impact of Aircraft Maintenance Technical Training on Risk Mitigation in the Sri Lankan Aviation Industry
(2022-09-29)The operational efficiency of aircraft maintenance activities is pivoted on the equilibrium between safety and productivity. Against this backdrop, aviation safety management systems play a vital role in ensuring safe ... -
An Analysis of the Impact of Technical Communication on Aviation Risk Mitigation in the Context of Aircraft Maintenance Operations in Sri Lanka
(2022-09-29)Aviation safety plays a vital role in the airline industry including aircraft maintenance operations. The equilibrium between safety and productivity is inversely proportionate as additional efforts on safety have an ... -
Estimation of Lift Hysteresis of an Airfoil in Low Speed Flow
(2022-09-29)A phenomenon called hysteresis leads to a difference in separation and reattachment angles of an airfoil at angles of attack near and above stall. This occurs when there is a difference in the lift distribution of an ... -
Thermographic Inspection System for Surface Coating Defects on Aircraft Fuselage
(2022-09-29)Aircraft outer shell is coated with a corrosion resistant layer because its alloy does not possess sufficient intrinsic resistance to wear and corrosion. Impacts by small particles or large objects such as bird strikes ... -
Indigenously Designed Addressable Bilge Alarm System for Naval Vessels
(2022-09-29)The primary purpose of an Addressable Bilge Alarm Panel is to provide an early warning of the bilge level of a vessel so that the personnel, equipment and valuable resources can be protected and action can be taken to ... -
Design and Development of an Autonomous Underwater Vehicle (AUV): For Rip Current Data Collection and Shallow Water Explorations
(2022-09-29)Autonomous Underwater Vehicle is an emerging trend in the modern maritime scenario. Though there are various developed designs, researchers are keen on developing more manoeuvrable, stable and enduring structures with ... -
Novel Design of Cost-effective Solar Powered Brackish Water Reverse Osmosis Plant: A Possible Solution for an Affordable Supply of Safe Drinking Water for the Rural Communities in CKDu-affected Areas in Sri Lanka
(2022-09-29)The government of Sri Lanka has established a Community-Based Organization (CBO) to supply safe drinking water on a payment basis through the application of electrically driven Brackish Water Reverse ... -
A Numerical Study on Effect of Change in Longitudinal Centre of Gravity on Planing Capability of a Coastal Patrol Craft: A Case Study, Sri Lanka Navy
(2022-09-29)The pressure that acts on the wetted surface area of coastal petrol craft always maintains the equilibrium with the weight of the vessel. The acting pressure comprises of two elements, i.e. ...