Engineering Technology: Recent submissions

Now showing items 81-100 of 124

Enhancement of microbially induced carbonate precipitation using organic biopolymer

Nawarathna, T.H.K.; Nakashima, K.; Kawasaki, S. (2018)

Microbially induced carbonate precipitation (MICP) by using ureolytic bacteria is a novel and environmentally friendly way to treat the un-cemented sand. It was implemented successfully in number of geotechnical applications. ...
Effect of Cationic Bio Polymer on Calcium Carbonate Crystallization by Microbe

Nawarathna, T.H.K.; Nakashima, K.; Kawasaki, S. (Division of Sustainable Resources Engineering, Hokkaido University, Japan., 2017)

Formation and deposition of the mineral upon an organic matrix is referred as bio-mineralization. Organic matrix provide a structural framework for the nucleation and growth of the minerals which is mainly consists with ...
Effects of Cationic Polypeptide on CaCO3 Crystallization and Sand Solidification by Microbial-Induced Carbonate Precipitation

Nawarathna, T.H.K.; Nakashima, K.; Fujita, M.; Takatsu, M.; Kawasaki, S. (ACS Publications, 2018)

The use of organic additives to improve microbial-induced carbonate precipitation (MICP) is a novel and innovative idea. This study is the first to address the effects of the cationic biopolymer poly-lysine (poly-Lys) on ...
Applicability of the numerical methods and field monitoring data to evaluate the stability of an embankment slope.

Nawarathna, T.H.K.; de Silva, L.I.N. (Division of Sustainable Resources Engineering, Hokkaido University, Japan., 2016)

Evaluation of the stability of an embankment slope during and after the construction is essential to ensure a safe and economical embankment. Stability of an embankment can be evaluated by using Numerical methods (Finite ...
Effect of organic bio-polymer on bio-mineralization of CaCO3

Nawarathna, T.H.K.; Nakashima, K.; Kawasaki, S. (2017)

: Organic matrix in the biogenic CaCO3 has a significant influence on the CaCO3 crystal growth, its polymorphs and morphology. In this research, effect of the cationic and anionic organic bio-polymers on the crystallization ...
Enzyme mediated calcium carbonate crystallization in the presence of natural polysaccharide

Nawarathna, T.H.K.; Nakashima, K.; Kawasaki, S. (Japanese Society for Chitin & Chitosan, 2018)

Calcium carbonate (CaCO3) is the most abundant type of biomineral, which is readily available in nature mainly in the structural components of the living organisms. Synthesize of the biominerals in the living organisms ...
Applicability of the Limit Equilibrium Method and the Finite Element Method in Predicting the Stability of Embankment Slopes

Nawarathna, T.H.K.; de Silva, L.I.N. (The Institution of Engineers, Sri Lanka, 2014)

Evaluation of the stability of the embankment slopes is vital to ensure a safe and operational embankment. Stability of embankment slopes can be evaluated by using the available analytical methods or by field monitoring ...
Applicability of the field deformation measurement data in predicting the stability of embankment slopes

Nawarathna, T.H.K.; de Silva, L.I.N. (Sri Lankan Geotechnical Society, 2015)

Matsuo chart, which is based on the field measurement of the settlement at the center of an embankment and the lateral deformation at the toe, is widely used in practice in evaluating the stability of embankments. However, ...
Effect of organic biopolymer on the microbially induced carbonate precipitation and its morphology

Nawarathna, T.H.K.; Nakashima, K.; Kawasaki, S. (2017)

Microbially induced carbonate precipitation (MICP) by using ureolytic bacteria is a novel and environmentally friendly way to treat the un-cemented sand. It was implemented successfully in number of geotechnical applications. ...
Effects of Discontinuous Properties on the Stability of Tunnels

Nawarathna, T.H.K.; Kulathilake, L.K.N.S.; Perera, H.D.H.; Premalal, P.A.M.; Dharmaratne, P.G.R.; Chaminda SP, S.P.; Rohitha, L.P.S. (Department of Earth Resources Engineering, University of Moratuwa, 2010)

Main failures of underground openings during excavation are closely related to discontinuous properties of the surrounding rock mass and they affect differently to the stability of underground openings. In this research, ...
The Amendments in Typical Microbial Induced Soil Stabilization by Low-Grade Chemicals, Biopolymers and Other Additives: A Review

Gowthaman, S.; Nawarathna, T.H.K.; Nayanthara, P.G.N.; Nakashima, K.; Kawasaki, S. (Springer, Singapore, 2021)

Soil with the required engineering properties is the first prerequisite in construction engineering, as the stability of the buildings and structures highly hinges on characteristics of soil by which they are supported. ...
Assessment of voltage and current quality indices of grid connected solar PV plants against international

Ramachandaramurthy, V.K.; Yong, J.Y.; Tan, K.M.; Pouryekta, A.; Jayasinghe, D.H.G.A.E.; Ekanayake, J.B. (IEEE, 2019)

The renewable energy based power generation is increasingly gaining attention with the technological advances and global climatic concerns. Among different type of the renewable energy sources solar photovoltaic (PV) become ...
Testing guidelines for connection of solar photovoltaic farm to distribution grid: The Malaysian experience

Yong, J.Y.; Ramachandaramurthy, V.K.; Tan, K.M.; Pouryekta, A.; Ekanayake, J.B.; Jayasinghe, A.E. (Wiley Online, 2020)

Solar photovoltaic technology is intermittent in nature and employs power converters for grid‐interconnection, which can bring stability and power quality (PQ) issues to the power grid. Therefore, a set of testing guidelines ...
Analysis of wear properties of granite dust filled polymer composite for wind turbine blade

Joy Mathavan, J.; Patnaik, A. (Elsevier., 2020)

Efficient usage of wind energy by establishing a suitable material for wind turbine blade is considered in this paper. Aluminium alloys and coated timber were used as blade material in the early stage and are discarded for ...
Analysis of wear properties of aluminium based journal bearing alloys with and without lubrication.

Joy Mathavan, J.; Patnaik, A. (IOP Conference Series: Materials Science and Engineering., 2016)

Apart from classical bearing materials, Aluminium alloys are used as bearing materials these days because of their superior quality. In this analysis, new Aluminium based bearing materials, with filler metals Si, Ni, and ...
Sensor Controlled Defense Purpose Robot for Land Mine Detection.

Kunaraj, A.; Joy Mathavan, J.; Mathushan, M.; Kamalesan, G.M. (Proceedings of the International Conference on Smart Electronics and Communication (ICOSEC 2020) IEEE Xplore, 2020)

This paper presents an automated metal detecting rover-robot which can be operated by remote to help in the landmine detection. The objective of this metal detector robot is to identify the landmines in war-affected ...
Arduino based Hardware Implementation of Automatic Side Stand for Motor Bike

Joy Mathavan, J.; Premathilaka, P. G. S. G; Dinakara, K.G.L.; Herath, H.M.T.D. (International Conference on Computing Methodologies and Communication (ICCMC 2020) IEEE Xplore, 2020)

Usage of motor bike is preferred by most of the people for it is an easy way for transport and it needs a little space comparatively on parking. But when accidents happen, it causes severe injuries and sometimes deaths as ...
Development and Characterization of Polyamide Fiber Composite Filled with Fly Ash for Wind Turbine Blade.

Joy Mathavan, J.; Patnaik, A. (Springer Nature Singapore, 2020)

Proposing a suitable material for wind turbine blade is discussed in this paper. Low weight, high stiffness, high strength, and long durability are some of the salient features a material should possess to act as the wind ...
Hardware implementation of smart home automation system using Aurdino UNO.

Kunaraj, A.; Joy Mathavan, J.; Mathushan, M.; Kamalesan, G.M. (Springer, Singapore, 2020)

Home automation system is one of the developing systems nowadays. This project is concentrating on automatically controlling the home by monitoring the devices or appliances working at home. Arduino technology is used as ...
Hardware implementation of fire detection, control and automatic door unlocking system for automobiles.

Joy Mathavan, J.; Faslan, A.W.; Basith, N.U.A.; Wanigasinghe, W.V.S.D. (International Conference on Trends in Electronics and Informatics (ICOEI 2020), 2020)

During automobile fire accidents, the lives couldn’t be saved because of the failure in opening the vehicle doors. There are systems available for the detection and control of fire accidents in automobiles but those systems ...

Now showing items 81-100 of 124

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