Browsing Faculty of Engineering, Civil Engineering by Title

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  • On the application of data assimilation in regional coastal models 
    Torre, RC [Thesis-Abstract]
    Data assimilation is a methodology which can optimise the extraction of reliable information from observations and combine it with, or assimilate it in, numerical models. The development of both the observation techniques ...
  • Open source software project management from quality aspects 
    Ranaweera, YM [Thesis-Abstract]
    The breakthrough of Open Source Software Development (OSSD) is not only evident when looking at the gradually rising interest in OSS related research but also when observing the software business. Clearly OSS provides many ...
  • Opportunities and threats faced by urban housing developers 
    Gunasekara MDS [Thesis-Abstract]
    The Sri Lankan construction industry went through a major boost within the last few decades, especially in high rise residential buildings which are coming up in Colombo and other urban areas. The growing number of local ...
  • Optics based low cost full-field in-plane displacement measuring technique 
    Diluxshan, A [Thesis-Full-text]
    Optics Based Low-cost Full-field In-plane Displacement Measuring Technique Displacement/strain measurement plays a significant role in understanding structural and material behaviour. In the local context, commonly used ...
  • Optimal regional planning in solid waste management 
    Katugampola, PI [Thesis-Abstract]
    This study investigates the application of linear programming and mixed integer programming techniques for the optimal allocation of waste stream and facility scheduling of a regional solid waste management system, over ...
  • Optimisation of irrigation water releases in the wet season using probable rainfall 
    Thoradeniya, WBM [Thesis-Abstract]
    Irrigation water has become scarce. The availability is decreasing due to the ever increasing demand for fresh water and the competition between the different uses of it. This scarcity persuades us to introduce improved ...
  • Optimization of biogas production with water hyacinth 
    Dilhani, JAT [Thesis-Abstract]
    The water hyacinth (Eichhornia crassipes [Mart.] Solms) due to its high growth rate and vegetative reproduction has been classified as an obnoxious freshwater weed especially in the tropics and subtropics. It has been ...
  • Optimization of bus dispatching from any given terminal 
    Piyadasa, JDAI [Thesis-Abstract]
    The problems of scheduling and schedule co-ordination have conflicting objectives related to user’s cost, operator’s cost, overloading and crew deployment hours. Passengers would like to have bus service where there is ...
  • Optimization of circular ground reservoirs 
    Wickramasinghe, NRS [Thesis-Abstract]
    Ground reservoirs of various types are often used as water storage reservoirs in major water supply schemes. Mainly there are two types of ground reservoirs viz. circular and rectangular. Circular type ground reservoirs ...
  • Optimization of prestressed concrete railway sleepers 
    Lakmali, HDD [Thesis-Abstract]
    In Sri Lanka cheapest and safest mode of transportation is railways. It has higher load carrying capacities. The load applied by trains is transferred to the ground through rails supported on railway sleepers. Basically ...
  • Optimization of rainfall spatial variability for daily streamflow estimation with a monthly water balance model 
    Maroof N [Thesis-Abstract]
    Precipitation varies significantly over space and time within a watershed. Precipitation has a vital role in determining surface hydrological processes because of its influence on streamflow estimations using mathematical ...
  • Optimization of random rubble masonry retaining wall design 
    Santhajeewa, AN [Thesis-Full-text]
    The conventional earth retaining structures built using Random Rubble Masonry (RRM) are designed as gravity retaining structures where weight of the structure is used for its stability. In Sri Lanka, RRM retaining walls ...
  • Optimization of spillway design using finite element methods 
    Ariyarathne, NGR [Thesis-Abstract]
    Spillway is a critical component in a storage reservoir or in a diversion dam. Many failures of dams have been caused by improperly designed spillways or by spillways of insufficient capacity. There have been numerous ...
  • Optimization of truss type steel bridges 
    Karunarathna, WWN [Thesis-Abstract]
    This work aims towards analyzing truss type steel bridges by 3-D finite element modelling using SAP2000. Details of different truss type steel bridges are discussed together with gathered information on such bridges found ...
  • Optimization of uplift capacity of transmission tower foundations 
    Gunasena, UPP [Thesis-Full-text]
    Transmission tower lines using lattice towers and concrete foundations are the common practice in most of the countries all over the world. A significant amount of the cost of the transmission tower line is spent for the ...
  • Optimized roof top tower design 
    Gunathilaka, AMLN [Thesis-Abstract]
    Errection of Telecommunication towers has become one of the key elements in any network expansion project in telecommunication industry at present days. Roof top towers play a dominant role in this context especially in ...
  • Optimizing passenger movements through airport terminals 
    Saparamadu, DDGADS [Thesis-Full-text]
    Minimizing walking distances, waiting times and delays at critical service centers such as ticket counters, immigration, baggage claim and security checks and optimal spacing of other services or frictions such as shops, ...
  • Optimum blast proof design of perimeter walls 
    Dikkowita, DKAA [Thesis-Abstract]
    The use of vehicle bombs to attack city centers has been a feature of campaigns by terrorist organizations around the world. A bomb explosion within or immediately nearby a building can cause catastrophic damages on the ...
  • Optimum design of plate girders 
    Weeratunga, AN [Thesis-Abstract]
    Steel plate girders are generally used to span long distances and support heavy loads They consist of top and bottom flanges connected to a vertical web. The flanges are connected to the web by fillet welds. I’ late girders ...
  • Optimum design of steel open web girders 
    Alahakoon, CDW [Thesis-Abstract]
    Girders are used to support building floors, roofs, and bridges or as members of towers, cranes. When a girder is built with top and bottom members connected with web members it is called an open web girder. (Ref Fig 1) ...