Mohamad Rizal Abdul Rejab
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Preferred name
Mohamad Rizal Abdul Rejab
Official Name
Mohamad Rizal, Abdul Rejab
Alternative Name
Rejab, Mohamad Rizal Abdul
Rejab, M. R.A.
Main Affiliation
Scopus Author ID
46161516300
Researcher ID
DPU-6242-2022

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  • Publication
    Real-Time Flood Monitoring System Using Raspberry PI
    ( 2020-12-18)
    Fairuz M.F.M.
    ;
    Mohamad Rizal Abdul Rejab
    ;
    Rohani S Mohamed Farook
    ;
    Aznor Hanah Abdul Halim
    ;
    Najihah Abdul Rashid
    ;
    Rifaat M.N.M.
    Flood has been a major concern for a very long time and the inability to monitor it in real-time has been a major disadvantage in maintaining a healthy hydrologic process. The main problem in monitoring flood is the amount of time taken for data to reach users and how long the data is relevant for as in monitoring flood, timing is the crucial key. This research proposes a Real-Time Flood Monitoring System that can aid in monitoring flood more efficiently. The system utilizes a set of sensors connected to a single-board computer that determines values in which is vital in monitoring flood. To ensure a fast transmission of data, the values are transferred over Wide Area Network (WAN) to host these values on a remote server. The remote server hosts these data on a website and application which is made accessible for the public with an ease of access. As a result, it can be viewed by users who wish to know the necessary values in determining danger level and further actions can be taken in ensuring their safety. Data which is transferred on real-time allow less time to be taken in order for the news to spread around as time is very crucial in saving people from natural disasters. These data also have a great importance for safety enforcement to be used in determining safety precautions that can be taken in order to ensure the safety of people around a particular area.
  • Publication
    Artificial Magnetic Conductor to Enhance Microstrip Patch Textile Antenna Performance for WiMAX Application
    ( 2020-12-18)
    Zahid L.
    ;
    Abu Bakar H.
    ;
    Abdul Rani K.N.
    ;
    Thennarasan Sabapathy
    ;
    Mohd Aminudin Jamlos
    ;
    Mohamad Rizal Abdul Rejab
    ;
    Musa K.S.
    ;
    Hamzah D.
    ;
    Norfatihah Bahari
    ;
    Rashidah Che Yob
    A rectangular microstrip patch textile antenna with Artificial Magnetic Conductor (AMC) operated at the center frequency of 5.80 gigahertz (GHz) for Worldwide Interoperability for Microwave Access (WiMAX) application was designed and simulated using the CST Microwave Studio 2016 and fabricated in this study. The use of AMC could solve the inflexibility of FR4 substrate that limits human body movement and reduce the radiation scattered on the human body whilst increasing the antenna gain and directivity. The antenna consists of 5 5 square shape gap of AMC unit cells ground layer using ShieldIt Super, five substrate layers using cotton (viscose) fabric as well as patch layer and another ground layer using the same ShieldIt Super. AMC is a metamaterial that imitates the conduct of zero reflection phase of Perfect Magnetic Conductor (PMC) on the resonant frequency not evidently existed in nature. Overall, the antenna with AMC has the significant return loss, S11 below than -30 decibel (dB), gain improved to more than 8 dB, and directivity elevated to more than 9 dBi at resonant frequency near to 5.80 GHz, respectively.
  • Publication
    The Stability of The Combat Technique in Seni Silat Cekak Malaysia
    ( 2024-06-07)
    Aznor Hanah Abdul Halim
    ;
    Rohani S Mohamed Farook
    ;
    Mohamad Rizal Abdul Rejab
    ;
    Mohd Fairuz M. Fadzil
    ;
    Mohammad Shahril Salim
    This paper presents the stability of the performer of Seni Silat Cekak Malaysia (SSCM) when performing the combat technique of SSCM buah jatuh, especially the Buah Kilas Hadapan (BKH). Comparisons are made when SSCM practitioners perform the movement with and without a sparring partner. The analysis of the study refers to the Center of Gravity (COG-Centre of Gravity) on the sole of the left foot that supports the SSCM performer's body when performing the movement of BKH. This study was conducted using Motion Capture System. The Oqus (camera) is placed around the platform which is used to record the movement of the human body through markers attached to the body. The data obtained is stored and processed through Qualisys Track Manager (QTM) and Visual 3D software. Data on the movement of BKH was recorded on two SSCM respondents of different genders. The Center of Gravity Point on the left foot of the SSCM practitioner was compared and analyzed. Axis changes on the left foot of SSCM respondents are mainly focused on the medial and lateral axis (left and right) when performing the BKH. The results of this study show a minimal coordinate change on the axis (0.02m to 0.06m) from the medial and lateral angles of the Center of Gravity on the left leg of the SSCM respondents proving that the BKH is stable.