Browsing UoM Conferences by Title

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  • Heavy mineral sands in Kirinda area, deposit characteristics and extraction potential 
    Fernando, AKN; Perera, EMNS; Saranga, LS; Vijitha, AVP [Conference-Full-text]
    Kirinda fishery harbour is dredged out periodically to pump out sand to maintain its depth. Sand samples (n= 38) were collected from the dredged-out sand pile covering all the regions and were analysed for mineralogy, ...
  • Heritage urbanism 
    Tasmia, F; Trina, NA; Rahman, MM [Conference-Full-text]
    Heritage must not only be a historic monument but also an active factor in contemporary life. The use of cultural heritage as a tool to respond to the rapidly changing socio-economic conditions becomes one of major focus ...
  • Heuristics-based sql query generation engine 
    Sugandhika, C; Ahangama, S [Conference-Full-text]
    A database is one of the prime media to store data. Most of the time, relational databases are preferred over other databases due to their ability to represent complex relationships between data. Languages like Structured ...
  • Hidden costs of mobility in urban areas 
    Vijay, MA; Shivangi, V [Conference-Full-text]
    The densification of an urban core forces outward growth of the city to suburbs. The movement towards the suburbs is mostly residential for various reasons including economic, environmental or leisure. The sprawl creates ...
  • Hierarchical identity and space; a study on long surviving railway station interior in sri lanka. 
    Samarasinghe, AM; Jayasinghe, S [Conference-Full-text]
    The visual interpretations of railway interior in Sri Lanka continue to maintain its timeworn fashion only with minor changes while infrastructure and furniture design in the rest of the world, experience rapid transformation. ...
  • High impedance arcing fault detection in low voltage distribution network 
    Paththamperuma, RS; Perera, I; Perera, K; Perera, C; De Silva, N; Javatunga, U [Conference-Extended-Abstract]
    Low voltage distribution network should be highly reliable with excellent security. For overhead feeders security is predominantly important. If an unrecognizable quantitative fault occurs at the overhead lines, the above ...
  • High performance AC-AC regenerative 5-level NPC converter with capacitor voltage balancing 
    Karunadasa, JP; Bandara, IBH; Dayananda, WDD; Kumara, KGSU; Tennakoon, GMR [Conference-Full-text]
    Regenerative AC-AC converters are required for serving AC loads that draw and return power during operation, when input is also taken from an AC source. AC motor drives, static VAR compensators, harmonic compensators ...
  • High performance concrete incorporating fly ash, nano-silica (nano-SiO2) and micro-silica (micro-SiO2) 
    Priyadarshana, MST; Dissanayake, PBR [Conference-Full-text]
    High performance concrete (HPC) exceeds the properties and constructability of normal concrete. Normal and special materials such as fly ash, micro silica and nano silica are used to make these specially designed concretes ...
  • High performance software application acceleration using field programmable gate arrays 
    Lakshan, HMRD; Liyanage, CM; Perera, TTD; Wijesundera, DSS; Pasqual, AA [Conference-Full-text]
    From the early Fanes of foreign trade which consisted of direct exchange of commodities, financial exchanges have evolved to process transactions using high end computer systems. In highly competitive financial markets low ...
  • High pulse thyristor converter for HVDC applications 
    Perera, LB; Karunadasa, JP; Perera, BMD; Perera, KPSD; De Silva, PAGS; Jayarathne, MC [Conference-Extended-Abstract]
    Designing, simulation and implementation of a scaled down model of a High Pulse Thyristor ac / dc Current Source Converter (CSC) for HVDC applications based on a new concept of Multi Level Current reinjection are discussed. ...
  • High pulse voltage source inverter for standalone renewable energy systems 
    Perera, LB; Karunadasa, JP; Chathuranga, KAP; Premathilake, DMKM; Rathnayake, INW; Senarathne, KN [Conference-Extended-Abstract]
    Designing, simulation and implementation of a 3kVA, 36 pulse voltage source inverter for standalone renewable energy systems based on the new concept of multi level voltage reinjection is discussed. Introduction to the ...
  • High volume fly ash mixes supplemented with colloidal nano silica 
    Nanayakkara, KD; Dias, WPS [Conference-Abstract]
    Since cement manufacturing causes 7- 8% of total global CO2 emissions, attempts have been made to minimize cement consumption. One method is to introduce pozzolans, commonly fly ash (FA), as supplementary materials to ...
  • High-precision thickness measurement using a laser-based optical method 
    Watugala, GK; Damgampola, PS; Priyanka, MTD; Wickramanayaka, DRK; Wickramasinghe, PDOJS [Conference-Extended-Abstract]
    In metal rolling and in calendaring operations, the raw material is squeezed through two horizontal cylindrical rollers rotating in opposite directions. The thickness of the sheet coming out of the two rollers must be kept ...
  • A high-speed charge injection circuit for nanosecond-scale electrochemical measurements 
    Huan, J; Liang, J; Georgescu, N; Feng, Z; Scherson, D; Mandal, S [Conference-Full-text]
    This paper describes a GaNFET-based high-speed charge injection circuit to study fast redox processes at electrodeelectrolyte interfaces. The circuit allows the rates of electrode processes, which are much faster than ...
  • Highly effective circular economic practices for the life cycle of a construction project 
    Ishan, M; Gamage, I; Lingasabesan, V [Conference-Full-text]
    The circular economy (CE) concept has emerged as an important aspect of sustainable development in the construction industry. Inadequate knowledge and understanding on properly integrating CE practices into the construction ...
  • Hipexo: a hip exoskeleton robot for load lifting with flexible trunk linkage mechanism 
    Perera, ULS; Dasanayake, NP; Hettiarachchi, HPT; Mannapperuma, MAVA; Ranaweera, RKPS; Gopura, RARC [Conference-Full-text]
    This paper proposes a hip exoskeleton robot named HipExo to provide power assistance for the industrial workers during stoop lifting activities. It introduces a hybrid actuator to power the hip joints. The electric motor ...
  • History as a learning condenser to improve QOL (quality of life) 
    Tisa, SA; Khan, MDR [Conference-Full-text]
    Spaces in history give that spaces another dimension to promote learning and recreational facilitates to people that enrich their way of life. By providing the context needs, it ensures people’s participation and creating ...
  • Holistic behaviour of urban pond systems for flood risk mitigation- a case study in metro Colombo area 
    Ponnamperuma, N; Rajapakse, L [Conference-Full-text]
    In every year Colombo becomes a flood victim causing many negative effects and the current flood control systems are inadequate to address the issue to the fullest. This case study is to enhance the present flood ...
  • Homogenisation of ultra-thin woven fibre composite structures under high curvatures 
    Weerasinghe, WUD; Herath, HMST; Mallikarachchi, HMYC [Conference-Abstract]
    Utilising fibre-based textile structure as the composite reinforcement results in making composite more tailorable and effective for applications where various types of loads are anticipated to be supported by the ...
  • Homogenization of ultra thin woven composite structures at high curvatures 
    Weerasinghe, U; Herath, S; Mallikarachchi, C [Conference-Full-text]
    Growing demand for ultra-thin woven composites has been identified in weight-sensitive applications, especially in space engineering applications such as self-deployable structures. They undergo extreme curvatures during ...