A case study of PV output power degradation rates in Oman.
Journal Article
Honnurvali, M., Gupta, N., Goh, K., Umar, T., & Nazeema, N. (2019)
A case study of PV output power degradation rates in Oman. IET Renewable Power Generation, 13(2), 352-360. doi:10.1049/iet-rpg.2018.5457
To meet the increase in peak electricity demand and to reduce fossil fuel emissions in Oman and as an initiative taken by the government, by 2030, 15% (3000 MW) of the total e...
Assessment of efficiency of air abrasive cleaning on masonry stones and bricks using greyscale Imaging analysis.
Conference Proceeding
Reza, H., Zhang, B., & Gupta, N. K. (2015)
Assessment of efficiency of air abrasive cleaning on masonry stones and bricks using greyscale Imaging analysis. In Proc. of the 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...
Reliability of manual assessments in determining the types of vegetation on railway tracks
Conference Proceeding
Nyberg, R. G., Yella, S., Gupta, N. K., & Dougherty, M. (2015)
Reliability of manual assessments in determining the types of vegetation on railway tracks. In J. Wang, W. Cellary, D. Wang, H. Wang, S. Chen, T. Li, & Y. Zhang (Eds.), Web Information Systems Engineering – WISE 2015. , (391-399). https://doi.org/10.1007/978-3-319-26187-4_37
Current day vegetation assessments within railway maintenance are (to a large extent) carried out manually. This study has investigated the reliability of such manual assessme...
Inter-rater reliability in determining the types of vegetation on railway trackbeds
Conference Proceeding
Nyberg, R. G., Yella, S., Gupta, N. K., & Dougherty, M. (2015)
Inter-rater reliability in determining the types of vegetation on railway trackbeds. In J. Wang, W. Cellary, D. Wang, H. Wang, S. Chen, T. Li, & Y. Zhang (Eds.), Web Information Systems Engineering – WISE 2015. , (379-390). https://doi.org/10.1007/978-3-319-26187-4_36
Vegetation growing on railway trackbeds and embankments can present several potential problems. Consequently, such vegetation is controlled through various maintenance procedu...
Machine Vision For Condition Monitoring Vegetation On Railway Embankments
Conference Proceeding
Nyberg, R., Gupta, N., Yella, S. & Dougherty, M. (2014)
Machine Vision For Condition Monitoring Vegetation On Railway Embankments. In Proceedings of 6th IET Conference on Railway Condition Monitoring, RCM, 1-7. ISBN 978-1-84919-913-1
National Railway Administration in Northern Europe do not employ systematic procedures in monitoring the current state of vegetation to form the basis of maintenance decision ...
Factors influencing municipal construction project performance
Journal Article
Alsulamy, S., Gupta, N., & Sloan, B. (2014)
Factors influencing municipal construction project performance. Proceedings of the ICE - Municipal Engineer, 167(2), 108-117. https://doi.org/10.1680/muen.13.00029
There is a strong correlation between practised critical success factors and the efficiency of performance measurement systems in delivering satisfactory service. Construction...
Detecting plants on railway embankment.
Journal Article
Nyberg, R., Gupta, N. K., Yella, S., & Dougherty, M. (2013)
Detecting plants on railway embankment. Journal of Software Engineering and Applications, 6, 8-12. https://doi.org/10.4236/jsea.2013.63b003
This paper investigates problems concerning vegetation along railways and proposes automatic means of detecting
ground vegetation. Digital images of railway embankments have b...
Ranking of the main criteria for selection procedures on major construction projects in Libya using the Delphi method.
Journal Article
Elsayah, O., Gupta, N. K., & Zhang, B. (2013)
Ranking of the main criteria for selection procedures on major construction projects in Libya using the Delphi method. International Journal of Mechanical, Industrial Science and Engineering, 7, 715-719
The construction sector constitutes one of the most
important sectors in the economy of any country. Contractor selection is a critical decision that is undertaken by client o...
Contractor selection using an integrated AHP and TOPSIS model
Journal Article
Elsayah, O., Gupta, N. K., Zhang, B., & Wamuziri, S. (2013)
Contractor selection using an integrated AHP and TOPSIS model. International Journal of Civil and Environmental Engineering, 35, 1116-1126
Machine vision approach for automating vegetation detection on railway tracks.
Journal Article
Yella, S., Nyberg, R., Payvar, B., Dougherty, M., & Gupta, N. K. (2013)
Machine vision approach for automating vegetation detection on railway tracks. Journal of Intelligent Systems, 22, 179-196. https://doi.org/10.1515/jisys-2013-0017
The presence of vegetation on railway tracks (amongst other issues) threatens track safety and longevity. However, vegetation inspections in Sweden (and elsewhere in the world...