Nor Azura Abdul Rahim
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Preferred name
Nor Azura Abdul Rahim
Official Name
Nor Azura, Abdul Rahim
Alternative Name
Rahim, Nor Azura Abdul
Rahim, N. A. A.
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Scopus Author ID
57203438760
Researcher ID
AAC-3346-2021

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  • Publication
    Moment Invariants Technique for Image Analysis and Its Applications: A Review
    ( 2021-07-26)
    Mohd Wafi Nasrudin
    ;
    Yaakob N.S.
    ;
    Nor Azura Abdul Rahim
    ;
    Mohd Zamri Zahir Ahmad
    ;
    Ramli N.
    ;
    Aziz Rashid M.S.
    The Moment invariant is a feature extraction technique used to extract the global features for shape recognition and identification analysis. There are many types of Moment Invariants technique since it was introduced. To date, many applications still use the Moment Invariant technique as feature extraction technique to extract the features of any images. The reason why the Moment Invariants still valid till today because its capabilities to analyze the image due to its invariant features of an image based on rotation, translation and scaling factors. Therefore, this review paper focuses to elaborate the history of Moment invariants and its applications in related fields. The summary about the advantages and disadvantages of Moment Invariants techniques will be described at the end of this review paper.
      30  3
  • Publication
    Melt behavior of polypropylene-co-ethylene composites filled with dual component of sago and kenaf natural filler
    ( 2022-02-10)
    Nor Azura Abdul Rahim
    ;
    Xian Loo Yu
    ;
    Munusamy Y.
    ;
    Zunaida Zakaria
    ;
    Ramarad S.
    A dual component natural filler system featuring discrete function appears to be suitable for modulating smooth flow of pseudo-plastic into formulated biodegradable polymer composite. Polypropylene-co-ethylene (PPcoE) filled with sago starch and different kenaf powder loadings were compounded using co-rotating twin-screw extruder to produce dual component polymer composite. The flow characteristics of the composites were measured using capillary rheometer and Bagley corrections were performed to achieve the true rheological data. In addition, data collected from the twin-screw extruder were used to calculate the composite apparent rheological value. The flow properties of PPcoE filled with sago starch (PPcoE/sago) exhibited deviation from the common non-Newtonian thermoplastic flow paths at high shear rates. Interestingly, the addition of kenaf powder into the PPcoE/sago starch blend stabilized the melted composite flow stream. The calculation of interfacial tension revealed that the flow corrections were related to the phase selective localization of kenaf particle, which preferably embedded between the sago particles rather than in the surrounding PPcoE phase thus reducing the effect of sago clustering. At higher extrusion temperature, the extruded composite indicated sign of flow instability due to factors of high amount of kenaf powder loading and the degradation of sago starch and PPcoE chains.
      1  24