All Outputs (60)

Invariant object recognition by neural network. (1995)
Presentation / Conference Contribution
Peng, M., Gupta, N. K., & Armitage, A. (1995). Invariant object recognition by neural network. In Proc 1995 Int. Conf. on Artificial Neural Networks

Prediction of electric fields from conductors on a PCB by 3D finite-difference time-domain method. (1995)
Journal Article
Buchanan, W. J., & Gupta, N. K. (1995). Prediction of electric fields from conductors on a PCB by 3D finite-difference time-domain method. Engineering Science and Education Journal, 4, 177-182. https://doi.org/10.1049/esej%3A19950410

The finite-difference time-domain method gives accurate results for the calculation of electromagnetic wave propagation and hence can be used in a number of university final-year projects. The paper shows a novel application of the method in predicti... Read More about Prediction of electric fields from conductors on a PCB by 3D finite-difference time-domain method..

Prediction of electric fields in and around PCBs — 3D finite-difference time-domain approach with parallel processing (1995)
Journal Article
Buchanan, W. J., & Gupta, N. K. (1995). Prediction of electric fields in and around PCBs — 3D finite-difference time-domain approach with parallel processing. Advances in engineering software, 23(2), 111-114. https://doi.org/10.1016/0965-9978%2895%2900068-8

The authors have taken the 3D FDTD approach to simulate the propagation of electrical signals within and around printed circuit boards (PCBs). This relates to the work currently being carried out into the propagation of very high speed digital pulses... Read More about Prediction of electric fields in and around PCBs — 3D finite-difference time-domain approach with parallel processing.

Application of 3D finite-difference time-domain (FDTD) method to predict radiation from a PCB with high speed pulse propagation. (1994)
Presentation / Conference Contribution
Buchanan, W. J., Gupta, N. K., & Arnold, J. M. (1994, September). Application of 3D finite-difference time-domain (FDTD) method to predict radiation from a PCB with high speed pulse propagation

The authors have applied the 3D FDTD technique to simulate the propagation of electrical signals within printed circuit boards (PCBs). This relates to the work currently being carried out into the propagation of very high speed digital pulses in PCBs... Read More about Application of 3D finite-difference time-domain (FDTD) method to predict radiation from a PCB with high speed pulse propagation..

Parallel processing techniques in EMP propagation using 3D finite-difference time-domain (FDTD) method. (1993)
Journal Article
Buchanan, W. J., & Gupta, N. K. (1993). Parallel processing techniques in EMP propagation using 3D finite-difference time-domain (FDTD) method. Advances in engineering software, 18(3), 149-159. https://doi.org/10.1016/0965-9978%2893%2990062-X

The authors have applied the 3D FDTD technique to simulate the propagation of electrical signals on a microstrip antenna using a four-transputer array connected to a 386-based PC. This relates to work currently being carried out into the propagation... Read More about Parallel processing techniques in EMP propagation using 3D finite-difference time-domain (FDTD) method..

Simulation of radiation from a microstrip antenna using three-dimensional finite-difference time-domain (FDTD) method. (1993)
Presentation / Conference Contribution
Buchanan, W. J., Gupta, N. K., & Arnold, J. M. (1993). Simulation of radiation from a microstrip antenna using three-dimensional finite-difference time-domain (FDTD) method.

The authors have used the FDTD method to model and predict the radiation patterns from a microstrip antenna. One problem in modelling microstrip antennas is that these structures are highly resonant. The authors have described techniques to reduce th... Read More about Simulation of radiation from a microstrip antenna using three-dimensional finite-difference time-domain (FDTD) method..

Simulation of three-dimensional finite-difference time-domain method on limited memory systems. (1991)
Presentation / Conference Contribution
Buchanan, W. J., & Gupta, N. K. (1991). Simulation of three-dimensional finite-difference time-domain method on limited memory systems.

The authors discuss techniques in the modelling of electromagnetic fields using finite difference time domain (FDTD) methods applied to 80×86-based PCs or limited memory computers. Electrical modelling of structures is currently carried out mainly in... Read More about Simulation of three-dimensional finite-difference time-domain method on limited memory systems..

Inter-rater reliability in determining the types of vegetation on railway trackbeds
Presentation / Conference Contribution
Nyberg, R. G., Yella, S., Gupta, N. K., & Dougherty, M. (2015, November). Inter-rater reliability in determining the types of vegetation on railway trackbeds. Presented at International Conference on Web Information Systems Engineering, Springer International Publishing

Vegetation growing on railway trackbeds and embankments can present several potential problems. Consequently, such vegetation is controlled through various maintenance procedures. In order to investigate the extent of maintenance needed, one of the f... Read More about Inter-rater reliability in determining the types of vegetation on railway trackbeds.

Assessment of efficiency of air abrasive cleaning on masonry stones and bricks using greyscale Imaging analysis.
Presentation / Conference Contribution
Reza, H., Zhang, B., & Gupta, N. K. (2015, April). Assessment of efficiency of air abrasive cleaning on masonry stones and bricks using greyscale Imaging analysis. Presented at Second Intl. Conf. on Advances in Civil, Structural and Construction Engineering

Advanced greyscale imaging analysis was
conducted using Adobe Photoshop 6 on the surfaces of masonry
stones and clay bricks, taken from old buildings, to accurately
assess the efficiency of building cleaning. Five commonly used
masonry stones and... Read More about Assessment of efficiency of air abrasive cleaning on masonry stones and bricks using greyscale Imaging analysis..

Reliability of manual assessments in determining the types of vegetation on railway tracks
Presentation / Conference Contribution
Nyberg, R. G., Yella, S., Gupta, N. K., & Dougherty, M. (2015, November). Reliability of manual assessments in determining the types of vegetation on railway tracks. Presented at Web Information Systems Engineering – WISE 2015, Miami, FL, USA

Current day vegetation assessments within railway maintenance are (to a large extent) carried out manually. This study has investigated the reliability of such manual assessments by taking three non-domain experts into account. Thirty-five track imag... Read More about Reliability of manual assessments in determining the types of vegetation on railway tracks.

Evaluating the cost of disruption in office retrofit building projects
Presentation / Conference Contribution
Tokede, O., Gupta, N., & Wamuziri, S. (2016, October). Evaluating the cost of disruption in office retrofit building projects. Presented at 10th ICEC World Congress & Council Meeting

The purpose of this paper is to evaluate the cost of disruption in office retrofit building projects.

This work adopts a positivist approach and evaluates the cost of disruption based on the estimated level of disruptiveness of retrofit technolog... Read More about Evaluating the cost of disruption in office retrofit building projects.

The Electricity Infrastructure in Sri Lanka Then, Now and Hereafter
Presentation / Conference Contribution
Fernando, W., Gupta, N., & Özveren, C. S. (2017, August). The Electricity Infrastructure in Sri Lanka Then, Now and Hereafter. Presented at 52nd International Universities Power Engineering Conference (UPEC), Heraklion, Greece

This paper will initially describe the electricity infrastructure in Sri Lanka, covering history, current status, and future directions. Secondly, it will explore the costs of electricity generated by different sources including initial capital, retu... Read More about The Electricity Infrastructure in Sri Lanka Then, Now and Hereafter.

Field Based Photovoltaic Power Degradation Rates In Oman-Case Study
Presentation / Conference Contribution
Shaik, M., Gupta, N., & Goh, K. (2017, December). Field Based Photovoltaic Power Degradation Rates In Oman-Case Study. Presented at World Congress on Sustainable Technologies (WCST-2017), Cambridge, UK

Due to increase in demand for electricity usage all around the GCC there has been emphasizing on the usage of alternative sources of energy i.e. using solar, wind and ocean etc. on the other side accurate prediction of power delivery is crucial for e... Read More about Field Based Photovoltaic Power Degradation Rates In Oman-Case Study.

PV electrical parameters degradation analysis-Oman perspective
Presentation / Conference Contribution
Honnurvali, M. S., & Gupta, N. (2017, March). PV electrical parameters degradation analysis-Oman perspective. Presented at 2017 8th International Renewable Energy Congress (IREC), Amman, Jordan

Recent interests in exploring the potential of renewable energy possibilities and readiness in sultanate of Oman has showed that it can engage renewable energy technologies, such as solar, wind power and various hybrid power models to mitigate fossil... Read More about PV electrical parameters degradation analysis-Oman perspective.

Feasibility Study of Small Scale Battery Storage Systems Integrated with Renewable Generation Technologies for Sri Lankan Domestic Applications
Presentation / Conference Contribution
Fernando, W., Gupta, N., Kamyab, G., & Suheyl, C. O. (2019, September). Feasibility Study of Small Scale Battery Storage Systems Integrated with Renewable Generation Technologies for Sri Lankan Domestic Applications. Presented at 2019 54th International Universities Power Engineering Conference (UPEC), Bucharest, Romania

The purpose of energy storage technologies is to ultimately increase the efficiency of renewable energy generation methods and systems and decrease the global CO 2 emissions to tackle the Sri Lanka government's sustainability targets. This research a... Read More about Feasibility Study of Small Scale Battery Storage Systems Integrated with Renewable Generation Technologies for Sri Lankan Domestic Applications.

Can Future Smart Cities Powered by 100% Renewables and Made Cyber Secured-A Analytical Approach
Presentation / Conference Contribution
Shaik Honnurvali, M., Gupta, N., Goh, K., Umar, T., Kabbani, A., & Nazecma, N. (2019, January). Can Future Smart Cities Powered by 100% Renewables and Made Cyber Secured-A Analytical Approach. Presented at 2019 IEEE 12th International Conference on Global Security, Safety and Sustainability (ICGS3), London, United Kingdom

A smart city main objective is to provide a better living for the citizens by managing the resources both in a sustainable and cost-effective way to benefit the people at maximum., One of the key building factors of future smart cities is to generate... Read More about Can Future Smart Cities Powered by 100% Renewables and Made Cyber Secured-A Analytical Approach.

Renewable energy resources and technologies applicable to Sri Lanka towards a 100% RE future
Presentation / Conference Contribution
Fernando, W., Gupta, N., Ozveren, C. S., & Givaki, K. (2019, October). Renewable energy resources and technologies applicable to Sri Lanka towards a 100% RE future. Presented at 8th Renewable Power Generation Conference (RPG 2019), Shanghai, China

The combustion of fossil fuels primarily provides the energy supply in Sri Lanka. The energy generation in Sri Lanka is primarily realized by the combustion of thermal energy such as diesel and coal. The second energy generation source is Hydroelectr... Read More about Renewable energy resources and technologies applicable to Sri Lanka towards a 100% RE future.

Measurement, Modeling and Simulation of Photovoltaic Degradation Rates
Presentation / Conference Contribution
Honnurvali, M. S., Gupta, N., Goh, K., & umar, T. (2020, January). Measurement, Modeling and Simulation of Photovoltaic Degradation Rates. Presented at MoSICom: International conference on Modelling, Simulation and Intelligent Computing, Dubai, UAE

Photovoltaic degradation rates play a vital role in visualizing and analyzing the performance of the PV modules over the long run. A site survey is conducted to calculate PV degradation rates. The results have shown that for the first three years sin... Read More about Measurement, Modeling and Simulation of Photovoltaic Degradation Rates.

Development of Optimized Smart Indoor Control for Renewable Air-Conditioning
Presentation / Conference Contribution
Oye, T. T., Gupta, N., Goh, K., & Oye, T. K. (2020, September). Development of Optimized Smart Indoor Control for Renewable Air-Conditioning. Presented at 2020 9th International Conference on Renewable Energy Research and Application (ICRERA), Glasgow, United Kingdom

This paper presents the modelling of smart indoor control for renewable air-conditioning using fuzzy logic control and proportional-integral-derivatives for improved thermal comfort. The proposed control techniques are systematically designed and tun... Read More about Development of Optimized Smart Indoor Control for Renewable Air-Conditioning.

Design of a Smart and Intelligent Energy Efficient Controller for a Bathroom System
Presentation / Conference Contribution
Oye, T. K., Gupta, N., Goh, K., & Oye, T. T. (2020, September). Design of a Smart and Intelligent Energy Efficient Controller for a Bathroom System. Presented at 2020 9th International Conference on Renewable Energy Research and Application (ICRERA), Glasgow, United Kingdom

One of the major issues facing the world in the 21 st century is climate change. However, sustainability has become a crucial concept to combat extreme consumption of environmental resources. The bathroom has been estimated to be the principal user o... Read More about Design of a Smart and Intelligent Energy Efficient Controller for a Bathroom System.