Skip to main content

Research Repository

Advanced Search

All Outputs (60)

Investigation Of Physical And Chemical Characteristics Of Masonry Stones And Bricks During Building Cleaning Part2 Chemical Testing (2014)
Journal Article
Zhang, B., Reza, H., Gu, S., & Gupta, N. (2014). Investigation Of Physical And Chemical Characteristics Of Masonry Stones And Bricks During Building Cleaning Part2 Chemical Testing. Journal of Physical Science and Application, 4(4), 223-235. https://doi.org/10.17265/2159-5348/2014.04.002

This series of study focused on analysing and assessing the changes of the physical and chemical characteristics of the surfaces of the masonrystones and bricks during the sandblasting cleaning process by conducting various physical and chemical test... Read More about Investigation Of Physical And Chemical Characteristics Of Masonry Stones And Bricks During Building Cleaning Part2 Chemical Testing.

Factors influencing municipal construction project performance (2014)
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 project success is affected by multiple diminution factors, including cri... Read More about Factors influencing municipal construction project performance.

Detecting plants on railway embankment. (2013)
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 been acquired and used for the purpose. The current
work mainly proposes t... Read More about Detecting plants on railway embankment..

Ranking of the main criteria for selection procedures on major construction projects in Libya using the Delphi method. (2013)
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 organizations and is central to the success of any construction project. Co... Read More about Ranking of the main criteria for selection procedures on major construction projects in Libya using the Delphi method..

Machine vision approach for automating vegetation detection on railway tracks. (2013)
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) are currently being carried out manually. Manually inspecting vegetation... Read More about Machine vision approach for automating vegetation detection on railway tracks..

Condition monitoring of the strength and stability of civil structures using thick film ceramic sensors (2013)
Journal Article
Jabir, S. A. A., & Gupta, N. K. (2013). Condition monitoring of the strength and stability of civil structures using thick film ceramic sensors. Measurement : journal of the International Measurement Confederation, 46, 2223-2231. https://doi.org/10.1016/j.measurement.2013.03.018

Structural Health Monitoring (SHM) is about the mechanical strength and stability of a structure. The methods used to reveal and quantify the structure quality could be different in nature. Strain change is, however, the common structural parameter i... Read More about Condition monitoring of the strength and stability of civil structures using thick film ceramic sensors.

Thick-Film ceramic strain sensors for structural health monitoring (2011)
Journal Article
Jabir, S. A. A., & Gupta, N. K. (2011). Thick-Film ceramic strain sensors for structural health monitoring. IEEE Transactions on Instrumentation and Measurement, 60, 3669-3676. https://doi.org/10.1109/TIM.2011.2138310

Structural Health Monitoring represents one of the primary field applications for new sensor technologies. Different kinds of sensors to monitor stability anomalies of civil structures are deployed on different kinds of building materials. Observatio... Read More about Thick-Film ceramic strain sensors for structural health monitoring.

MRI suites and residual design risk from static magnetic field (2010)
Journal Article
Price, T., Wamuziri, S., & Gupta, N. (2010). MRI suites and residual design risk from static magnetic field. Proceedings of the ICE - Management, Procurement and Law, 163(1), 7-15. https://doi.org/10.1680/mpal.2010.163.1.7

Since the inception of the UK Construction (Design and Management) Regulations 1994 through to the 2007 Construction (Design and Management) Regulations a duty has been imposed upon the client of premises where a notifiable project has been carried... Read More about MRI suites and residual design risk from static magnetic field.

Condition monitoring of wooden railway sleepers (2009)
Journal Article
Yella, S., Dougherty, M., & Gupta, N. K. (2009). Condition monitoring of wooden railway sleepers. Transportation Research Part C : Emerging Technologies, 17, 38-55. https://doi.org/10.1016/j.trc.2008.06.002

Wooden railway sleeper inspections in Sweden are currently performed manually by a human operator; such inspections are to large extent based on visual analysis. In this paper a machine vision based approach has been considered to emulate the visual... Read More about Condition monitoring of wooden railway sleepers.

Application of reset voltage feedback for droop minimization in the unidirectional current pulse transformer (2008)
Journal Article
McNeill, N., Gupta, N. K., Burrow, S. G., Holliday, D., & Mellor, P. H. (2008). Application of reset voltage feedback for droop minimization in the unidirectional current pulse transformer. IEEE Transactions on Power Electronics, 23, 591-599. https://doi.org/10.1109/TPEL.2007.915662

This paper investigates the application of reset voltage feedback for reducing errors due to droop in the signal derived from a current transformer sensing unidirectional current pulses in switched-mode power converter applications. Droop is minimise... Read More about Application of reset voltage feedback for droop minimization in the unidirectional current pulse transformer.

Assessment of the error in the average current sensed by the unidirectional current pulse transformer (2008)
Journal Article
McNeill, N., & Gupta, N. K. (2008). Assessment of the error in the average current sensed by the unidirectional current pulse transformer. IET Circuits, Devices and Systems, 2, 265. https://doi.org/10.1049/iet-cds%3A20070226

Advantages of using a current transformer (CT) for current sensing in switched mode power converters are that galvanic isolation is inherent, losses are low, the bandwidth is high and a high-amplitude output signal may be obtained. However, 'droop' o... Read More about Assessment of the error in the average current sensed by the unidirectional current pulse transformer.

Comparison of pattern recognition techniques for the classification of impact acoustic emissions. (2007)
Journal Article
Yella, S., Gupta, N. K., & Dougherty, M. S. (2007). Comparison of pattern recognition techniques for the classification of impact acoustic emissions. Transportation Research Part C : Emerging Technologies, 15, 345-360. https://doi.org/10.1016/j.trc.2007.05.004

Current day condition monitoring applications involving wood are mostly carried out through visual inspection and if necessary some impact acoustic examination is carried out. These inspections are mainly done intuitively by skilled personnel. In thi... Read More about Comparison of pattern recognition techniques for the classification of impact acoustic emissions..

Artificial intelligence techniques for the automatic interpretation of data from non-destructive testing (2006)
Journal Article
Yella, S., Dougherty, M. S., & Gupta, N. K. (2006). Artificial intelligence techniques for the automatic interpretation of data from non-destructive testing. Insight - Non-Destructive Testing & Condition Monitoring, 48(1), 10-20. https://doi.org/10.1784/insi.2006.48.1.10

This paper attempts to summarise the findings of a large
number of research papers deploying artificial intelligence
(AI) techniques for the automatic interpretation of data from non-destructive testing (NDT). Problems in the rail transport domain... Read More about Artificial intelligence techniques for the automatic interpretation of data from non-destructive testing.

Active current transformer circuits for low distortion sensing in switched mode power converters. (2004)
Journal Article
McNeill, N., Gupta, N. K., & Armstrong, W. (2004). Active current transformer circuits for low distortion sensing in switched mode power converters. IEEE Transactions on Power Electronics, 19, 908-917. https://doi.org/10.1109/TPEL.2004.830075

The current transformer (CT) is frequently used for sensing applications in switched mode power converters. Advantages are that galvanic isolation is inherently incorporated, bandwidth is high, losses are low and that a high-amplitude output signal m... Read More about Active current transformer circuits for low distortion sensing in switched mode power converters..

Equipment for the investigation of the accelerated curing of concrete using direct electrical conduction (2004)
Journal Article
Wilson, J. G., & Gupta, N. K. (2004). Equipment for the investigation of the accelerated curing of concrete using direct electrical conduction. Measurement : journal of the International Measurement Confederation, 35(3), 243-250. https://doi.org/10.1016/j.measurement.2003.11.002

The need for accelerated curing of concrete in precast civil engineering components is discussed, and the techniques available to achieve this are presented, with particular emphasis on the use of direct electrical conduction.

The principles of th... Read More about Equipment for the investigation of the accelerated curing of concrete using direct electrical conduction.

Lifelong Learning - getting started. (1997)
Presentation / Conference Contribution
Armitage, A., Gupta, N. K., & Rae, G. (1997). Lifelong Learning - getting started. In 8th Annual EAEEIE Conference, 1997

Anovel parallel processing synchronization method for observing electric fields in and around PCBs (1997)
Journal Article
Buchanan, W. J., & Gupta, N. K. (1997). Anovel parallel processing synchronization method for observing electric fields in and around PCBs. International Journal of Electronics, 82(1), 61-76. https://doi.org/10.1080/002072197136273

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 Anovel parallel processing synchronization method for observing electric fields in and around PCBs.

Machine independent algorithm for concurrent finite-element problems (1996)
Presentation / Conference Contribution
Buchanan, W. J., & Gupta, N. K. (1996). Machine independent algorithm for concurrent finite-element problems. In 3rd International IEEE Conference on Computation in Electromagnetics, 1996 (17-20). https://doi.org/10.1049/cp%3A19960150

The finite-element method, initially developed for mechanical and civil engineering applications, is now applied to electromagnetics. This paper describes how parallel processing applies to finite-element simulations. The methods discussed are the pa... Read More about Machine independent algorithm for concurrent finite-element problems.

An Investigation into the improvement of Local Minima of the Hopfield Network (1996)
Journal Article
Peng, M., Gupta, N. K., & Armitage, A. (1996). An Investigation into the improvement of Local Minima of the Hopfield Network. Neural Networks, 9(7), 1241-1253. https://doi.org/10.1016/0893-6080%2896%2900017-2

The paper investigates the improvement of local minima of the Hopfield network. A local minima escape algorithm (LME algorithm), is proposed for improving local minima of small-scale networks. Experiments on travelling salesman problems (TSP) show th... Read More about An Investigation into the improvement of Local Minima of the Hopfield Network.