Zulkarnay Zakaria
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Preferred name
Zulkarnay Zakaria
Official Name
Zulkarnay, Zakaria
Alternative Name
Zakaria, Z. N.
Zakaria, Zulkarnay
Zakaria, Z.
Main Affiliation
Scopus Author ID
24403085300
Researcher ID
F-5218-2010

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Feasibility analysis of microwave frequency to detect wood for potential microwave application

2017-03-13 , Thomas W.K.T. , Mohd Hafiz Fazalul Rahiman , Soh Ping Jack , Ruzairi Abdul Rahim , Zulkarnay Zakaria , Vernoon Ang Wei Neing , Lean Thiam Siow

Microwave frequency has the potential to assist and improve forest product industry in terms of quality and quantity. Consequently, it has been selected to perform non-destructive inspection on wood which is defected or contains resin internally. This paper describes an experiment to determine the relationship between the attenuation of microwave signals and the different diameters of the holes in tree trunks. This analysis can be used as a reference for an optimal setup for a new microwave tomography aimed at the inspection of valuable wood trunks.

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Modelling of ultrasound tomography technique for Glass Fibre Reinforced Epoxy (GFRE) composites liquid transportation pipeline

2017-03-13 , Lean Thiam Siow , Mohd Hafiz Fazalul Rahiman , Mohd Shukry Abdul Majid , Ruzairi Abdul Rahim , Zulkarnay Zakaria , Thomas W.K.T. , Vernoon Ang Wei Neng

The purpose of this paper is to model the ultrasonic tomography on the E-glass fibre reinforced epoxy composite pipe for process monitoring and control. Finite element software and mathematical estimation were applied to model and study the ultrasound wave propagation, especially the reflection and transmission coefficient. While there is a significant result achieved between mathematical estimation and finite element analysis with maximum percentage distinctly in 2.33.

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