Ahmad Ashraf Abdul Halim
Thumbnail Image
Preferred name
Ahmad Ashraf Abdul Halim
Official Name
Ahmad Ashraf, Abdul Halim
Alternative Name
Abdul Halim, Ahmad Ashraf
Halim, Ahmad Ashraf Abdul
Halim, A. A.A.
Main Affiliation
Scopus Author ID
57200985251
Researcher ID
AGO-8881-2022

Research Output

Filters
2
Reset filters

Settings
Now showing 1 - 2 of 2
  • Publication
    Existing and emerging breast cancer detection technologies and its challenges: A review
    ( 2021-11-01)
    Ahmad Ashraf Abdul Halim
    ;
    Allan Melvin Andrew
    ;
    Mohd Najib Mohd Yasin
    ;
    Abd Rahman M.A.
    ;
    Muzammil Jusoh
    ;
    Vijayasarveswari Veeraperumal
    ;
    Hasliza A Rahim @ Samsuddin
    ;
    Illahi U.
    ;
    Abdul Karim M.K.
    ;
    Scavino E.
    Breast cancer is the most leading cancer occurring in women and is a significant factor in female mortality. Early diagnosis of breast cancer with Artificial Intelligent (AI) developments for breast cancer detection can lead to a proper treatment to affected patients as early as possible that eventually help reduce the women mortality rate. Reliability issues limit the current clinical detection techniques, such as Ultra-Sound, Mammography, and Magnetic Resonance Imaging (MRI) from screening images for precise elucidation. The capability to detect a tumor in early diagnosis, expensive, relatively long waiting time due to pandemic and painful procedure for a patient to perform. This article aims to review breast cancer screening methods and recent technological advancements systematically. In addition, this paper intends to explore the progression and challenges of AI in breast cancer detection. The next state of the art between image and signal processing will be presented, and their performance is compared. This review will facilitate the researcher to insight the view of breast cancer detection technologies advancement and its challenges.
      1
  • Publication
    ENG and NZRI Characteristics of Decagonal-Shaped Metamaterial for Wearable Applications
    ( 2020-08-01)
    Kabir Hossain
    ;
    Thennarasan Sabapathy
    ;
    Soh Ping Jack
    ;
    Muzammil Jusoh
    ;
    Fazilah, Ainur Fasihah Mohd
    ;
    Ahmad Ashraf Abdul Halim
    ;
    Raghava N.S.
    ;
    Podilchak S.K.
    ;
    Schreurs D.
    ;
    Abbasi Q.H.
    A decagonal-shaped split ring resonator metamaterial based on a wearable or textile-based material is presented in this work. Analysis and comparison of various structure sizes are compared considering a compact 6\times 6\ \mathrm{m}\mathrm{m}{2} metamaterial unit cell, in particular, where robust transmission-reflection (RTR) and Nicolson-Ross-Weir (NRW) methods have been performed to extract the effective metamaterial parameters. An investigation based on the RTR method indicated an average bandwidth of 1.39 GHz with a near-zero refractive index (NZRI) and a 2.35 GHz bandwidth when considering epsilon negative (ENG) characteristics. On the other hand, for the NRW method, approximately 0.95 GHz of NZRI bandwidth and 2.46 GHz of ENG bandwidth have been observed, respectively. These results are also within the ultra-wideband (UWB) frequency range, suggesting that the proposed unit cell structure is suitable for textile UWB antennas, biomedical sensors, related wearable systems, and other wireless body area network communication systems.
      3  55