ERU - 2011http://dl.lib.uom.lk/handle/123/146882024-03-29T09:57:05Z2024-03-29T09:57:05ZProceedings of the 17th Annual Research Symposium 2011 (Pre Text)http://dl.lib.uom.lk/handle/123/206442023-10-12T22:53:27Z2011-12-01T00:00:00ZProceedings of the 17th Annual Research Symposium 2011 (Pre Text)
Rodrigo, R
2011-12-01T00:00:00ZDemand side management for micro grids through smart metersWettasinghe, WADSLWidisinghe, HRWijayasekara, PDDSWijesekara, SRMDTSHemapala, KTMUhttp://dl.lib.uom.lk/handle/123/160222022-11-24T04:53:01Z2011-01-01T00:00:00ZDemand side management for micro grids through smart meters
Wettasinghe, WADSL; Widisinghe, HR; Wijayasekara, PDDS; Wijesekara, SRMDTS; Hemapala, KTMU
A microgrid is a small scale power system consisting of distributed small power facilities such as solar power, wind power and micro-turbines. Because of some merits such as an eco-friendly system, good quality power supply and energy security, the microgrid has been researched and encouraged actively in many countries.For commercialization, the effective operation for the micro grid is very important. Microgrid power generation satisfies the power requirement of considerable number of off-grid consumers. Therefore
consumers are limited to a low power usage. A Demand Side Management (DSM) system can be used for better power distribution among the consumers which is not in use nowadays. In this project the authors have made a network among consumers through Smart meters which are providing the ability to measure the real time power consumption and send those usage stats to the central server.
2011-01-01T00:00:00ZWi-Fi based Positioning systemLiyanagedara, LGAIMadarasinghe, BRTillekeratne, MATUbhayaratne, KNIDias, Dhttp://dl.lib.uom.lk/handle/123/81642020-09-14T07:05:13Z2011-01-01T00:00:00ZWi-Fi based Positioning system
Liyanagedara, LGAI; Madarasinghe, BR; Tillekeratne, MAT; Ubhayaratne, KNI; Dias, D
Real Time Location-estimation systems (RTLS) developed for outdoor environments have shown significant errors due
to changes in atmospheric conditions, multipath propagation and inherent signal strength variations. In this paper, we
present an improved Wi-Fi based RTLS solution for the outdoors that reduces the above impacts. In addition this paper
presents the development of a portable device for implementing the above RTLS solution. The research makes use of
Euclidean, standard deviation based and triartgulation algorithms. Data smoothening is done to reduce the multipath
propagation issues. The different algorithm combinations are compared via their error cumulative distribution
functions.
2011-01-01T00:00:00ZUtilization of fruit waste to produce biodegradable polymer compositesSamarasekara, AMPBPiyathilake, SAKVMKumarage, DIUhttp://dl.lib.uom.lk/handle/123/81632020-09-14T07:14:07Z2011-01-01T00:00:00ZUtilization of fruit waste to produce biodegradable polymer composites
Samarasekara, AMPB; Piyathilake, SAKVM; Kumarage, DIU
Polymers play an essential and ubiquitous role in everyday life due to their extraordinary range of properties.
However, Polymer wastes create formidable problems to the society today. Biodegradable polymers are
significant and of great importance for the future of the planet. Biodegradation is the decomposition of
polymer materials by microorganisms. Biodegradable Low Density Polyethylene (LDPE) based composite was
prepared by adding pectin as the main additive. Pectin was extracted using passion fruit waste. The
biodegradability imparted by pectin can be improved by incorporating natural enzymes. Papain and
Bromelain were two natural enzymes extracted from fruits of papaya and pineapple waste. The extracted
products were analysed and characterized using Fourier Transform Infrared Spectroscopy (FTIR). These
extracted natural enzymes can be used to produce biodegradable LDPE — Pectin polymer composite to
preserve the environment for future generations.
2011-01-01T00:00:00Z