Browsing Faculty of Engineering Research Unit (ERU & MERCon) by Title

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  • Nano-silver impregnated wrapping film to keep fruit fresh 
    Amarasinghe, DAS; Samarasekara, AMPB; Madhuwanthi, WADP; Dammage, DNS [Conference-Full-text]
    It is the common belief that, silver is one of the most effective and the least toxic inorganic antimicrobial agent. At minute concentrations, silver ions are nontoxic to human cells. In this study we investigate the ability ...
  • Natural and enhanced contaminated waters 
    Hettiarachchi, M; Karunarathne, S; Dissanayake, K [Conference-Full-text]
    Chromium is a highly soluble transition metal of vital industrial importance. It occurs in both trivalent and hexavalent forms. Due to many well identified adverse impacts of chromium to human health and natural ecosystems, ...
  • Need for custom-made intergrated management operations planning systems 
    Dassanayake, VPC; Nanayakkara, LDJF [Conference-Full-text]
    By surveying some of the research that has been carried out, a need for a systematic approach to the problem formulation and solution development in designing custom-made integrated production planning systems has been ...
  • NEO: Autonomous navigation by means of infrared sensors 
    Pathirana, DNW; Dassanayake, VPC [Conference-Extended-Abstract]
    With the emergence of personal robotics applications, mobile robotics technology has reached beyond the factory floor into unstructured environments that have not been specifically engineered for robots. In contrast to ...
  • Neural networks for determination of subsurface targets in multi layer soil structure 
    Dharrnadasa, IT; Lucas, JR; Udawatta, UKDL; Wijayapala, WDAS [Conference-Abstract]
    This paper results the research carried on the 2D resistivity inversion problem, where resistivity distribution is determined from the apparent resistivity measurements using the Artificial Neural Networks. Neural Network ...
  • A new approach of identifying arima models for seasonal time series 
    Cooray, TMJA [Conference-Extended-Abstract]
    One of the most powerful and widely used methodologies for forecasting economic time series is the class of models known as seasonal autoregressive processes. In this paper presents a new approach not only for identifying ...
  • A new approach to predict the porosity of pervious concrete at its fresh state 
    Kariapper, ABY; Nanayakkara, D [Conference-Full-text]
    A mathematical formula was derived to predict the porosity of pervious concrete (PC) at its fresh state. Coarse aggregates (CA) within the size ranges of 0.016-0.02m and 0.01- 0.014m were used in the study. Pervious ...
  • A new mathematical model to predict the iodine value of fatty oils 
    Prashantha, MAB; Premachandra, BAJK; Amarasinghe, ADUS [Conference-Extended-Abstract]
    Iodine value is defined as the number of centigrams of iodine per gram of oil sample. Drying property of fatty oils mainly depends on the type of unsaturated fatty acids and relative amounts of each type of fatty acid in ...
  • New mems based micro gripper using sma for micro level object manipulation and assembling 
    Munasinghe, KC; Bowatta, BGCT; Abayarathne, HYR; Kumararathna, N; Maduwantha, LKAH; Arachchige, NMP; Amarasinghe, YWR [Conference-Full-text]
    Micro electro mechanical systems (MEMS) based micro gripper for micro-assembling processes is designed. Gripper arms are actuated using a combination of Ni-Ti shape memory alloys and Si springs allowing a gripping range ...
  • New strategy for synthesizing catalyst-free hcl-doped polyaniline 
    Dinujaya, N; Narangoda, C; Karunanayake, L; Panawala, PSS; Tissera, I; Samarasekara, AMPB; Amarasinghe, DAS [Conference-Full-text]
    A new low-cost strategy for the catalyst-free synthesis of HCl-doped polyaniline (PANI) was developed. A 50:50 (water/hydrogen peroxide) solution was used as an oxidant and a 1M HCl solution was used as an acidic ...
  • Nine level cascaded H bridge inverter (For High performing UPS applications) 
    Darmawardana, PDH; Kahingala, td; Karunarathna, KMCG; Kularatne, LBSN; Karunadasa, JP [Conference-Abstract]
    This paper proposes a nine level Cascaded H-Bridge Multi-Level Inverter, realized via Distortion Minimization PWM technology which is incorporated in an Uninterrupted Power Supply (UPS), operating in the low power end. The ...
  • A nitriding technique for improving die life 
    Thilakawardana, D; Tittagala, SR [Conference-Full-text]
    The absence of proper understanding and facilities for heat treatment, specifically surface treatment techniques has retarded the development of tooi and die industry in Sri Lanka. Thus there has been a growing interest ...
  • Non-destructive evaluation of strength gain of ordinary portland cement mortar by ultrasonic pulse velocity method 
    De Silva, SDC; Sivahar, V [Conference-Full-text]
    This paper presents results of the study of ultrasonic pulse velocity and compressive strength of ordinary Portland cement mortar. Objectives of this study are to determine correlations between ultrasonic pulse velocity ...
  • Non-destructive evaluation of strength gain of ordinary portland cement mortar by ultrasonic pulse velocity method 
    De Silva, SD; Sivahar, V [Conference-Abstract]
    This paper presents results of the study of ultrasonic pulse velocity and compressive strength of ordinary Portland cement mortar. Objectives of this study are to determine correlations between ultrasonic pulse velocity ...
  • Non-invasive blood glucose monitoring using a hybrid technique 
    Nanayakkara, ND; Munasingha, SC; Ruwanpathirana, GP [Conference-Full-text]
    Diabetes needs regular blood glucose monitoring to control it. Invasive blood glucose measuring is the current gold standard. It causes discomfort for the patient and sometimes even infections. Researchers around the ...
  • Non-invasive tools for early detection and monitoring of sarcopenia in older individuals 
    Herath, HMKKMB; Jayasekara, AGBP; Madhusanka, BGAD [Conference-Full-text]
    Sarcopenia, defined by a gradual loss of muscle mass and function, affects many elderly people and is associated with reduced mobility, greater frailty, and a higher risk of falling. Using a vision attentive model and ...
  • Non-linear behaviour of open-cell metal foam under tensile loading 
    Zimar, AMZ; Nowsath, MH; Muhammad, MN; Herath, SR [Conference-Full-text]
    Metal foams are used extensively in civil and mechanical engineering applications. However the behaviuor of metal foams under various loading conditions are not well understood. Therefore this study investigates ...
  • Non-revenue water reduction strategies for an urban water supply scheme: a case study for Gampaha water supply scheme 
    De Silva, WSD; Ratnasooriya, AHR; Abeykoon, H [Conference-Full-text]
    Many urban water supply schemes face numerous challenges, including inadequate water supply relative to public demand, outdated infrastructure causing water losses, leading to substandard services throughout the ...
  • Nonlinear bending response of two-ply plain woven carbon fibre composites 
    Nadarajah, S; Jayasekara, M; Mallikarachchi, C [Conference-Abstract]
    Ultra-thin woven fibre composites are becoming popular in weight sensitive applications and hence it is important to predict their mechanical properties for design improvements. This paper presents a simple homogenize ...
  • Novel antimicrobial nano coated polypropylene based materials for food packaging systems 
    Egodage, DP; Jayalath, HTS; Samarasekara, AMPB; Amarasinghe, DAS; Madushani, SPA; Senerath, SMNS [Conference-Abstract]
    Modern days, in food industry significant attention has paid to secure food quality, safety and shelf-life. Microbial growth is the major cause of food spoilage which reduces shelf life of food. Food packaging plays a ...