Nor Amirah Abu Seman @ Haji Ahmad
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Preferred name
Nor Amirah Abu Seman @ Haji Ahmad
Official Name
Nor Amirah, Abu Seman @ Haji Ahmad
Alternative Name
Amirah, A. S.N.
Amirah, A.
Amirah, A. S.
Seman, Noramirah Abu A.
Seman, N. A.
Seman, Noramirah Abu
Seman, N. A.A.
Main Affiliation
Scopus Author ID
57205056513
Researcher ID
EJK-1104-2022

Research Output

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  • Publication
    A study of water distribution near Taman Seri Wang, Arau, Perlis
    ( 2021-02-23)
    Nor Amirah Abu Seman @ Haji Ahmad
    ;
    Tan W.H.
    ;
    Faridah Wahab
    ;
    Allan Melvin Andrew
    ;
    Nik Zainab Nik Azizan
    ;
    Ragunathan Al Santiagoo
    ;
    Salwa Mohd Zaini Makhtar
    The water distribution system consists of a network of pipelines of different sizes with control valves for transporting water to all streets and providing water to consumers through the water distribution system. The water distribution system may either be continuous or intermittent. Water is available 24 hours a day and seven days a week throughout the continuous water distribution network. This study was conducted to access the water distribution near Taman Seri Wang (TSW) in Arau, Perlis. Research had been outlined to access the existing water distribution at RPA ARAU, to identify the head loss of water distribution at TSW ARAU and to determine the relationship between node demand and pressure of water distribution system at TSW ARAU. A quantitative method was used in this study, which gathers the data parameter from Syarikat Air Perlis (SAP) generated using EPANET software to calculate the head loss inside the pipe Hazen - William equation. The flow rate shows a declining value at nodes 42, 34, 54 and 46 after an analysis of 0700 hours. Simultaneously, a higher proportion of head loss is found in mainly link 1 of the water intake point and link 15 in the water tank near the study area.
  • Publication
    The effect of stearic acid and different loading treated and untreated EFB fiber on the tensile, structural and chemical properties of polypropylene/ recycled acrylonitrile butadiene rubber/ empty fruit bunch composites
    ( 2021-05-24)
    Ragunathan Al Santiagoo
    ;
    Hong T.W.
    ;
    Nik Zainab Nik Azizan
    ;
    Allan Melvin Andrew
    ;
    Wahab F.
    ;
    Nor Amirah Abu Seman @ Haji Ahmad
    ;
    Othman N.S.
    A new developed of polymer materials made up of polypropylene (PP), recycled nitrile gloves (NBRr) and empty fruit bunch (EFB) fiber was fabricated. Recycled nitrile glove was blended together with PP plastic to reduce the use of petroleum based and to solve the issue of waste discarded at the landfill. EFB fiber was incorporated to lower the production cost of composite. Due to incompatibility of different phases, stearic acid treatment was used to improve the EFB fiber polarity. Thus, the effect of different EFB loading for untreated and treated stearic acid of PP/NBRr/EFB composite was studied. In this work, all the materials were mixed well using a heated two roll mill with temperature 180 °C within 9 minutes. The EFB loading were varied from 0 to 30 phr. The analysis of tensile properties was tested followed the ASTM D638, Type IV, testing procedure, to analyze tensile strength, Young’s modulus and elongation at break. The structural properties of the fracture sample surfaces were observed using Scanning Electron Microscope (SEM) and the chemical properties was analyzed using Fourier Transform Infra-Red (FTIR). Composites with stearic acid treatment have shown higher tensile strength compared to untreated EFB fiber. Besides, the micrograph structure surface from scanning electron microscopy analysis showed better fiber and matrix interaction, as the treated-EFB fiber is well encapsulated with the PP matrix. From the FTIR analysis, the intensity peak of OH for PP/NBRr/EFB/SA was reduced due to the removal O-H bond of cellulose from fibers during the surface modification of fibers.