Pusat Pengajian Pendidikan Jarak Jauh

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Now showing 1 - 5 of 256
  • Publication
    VLSI Implementation Of A Systolic Array Viterbi Decoder
    (1995-03)
    Mohd. Noh, Norlaili
    This project is on developing a Vi terbi decoder which uses the trace-back method structured in a systolic array fashion. It is believed that this architecture can reduce the size of the decoder as it minimizes the connections between component modules and requires a smaller storage space. The trace-back method can reduce the amount of hardware which is normally a problem with register exchange decoder. It is also suitable for achieving a higher speed of operation as tracking, updating and storage of the information sequence can be accomplished simultaneously during a single clock cycle.
  • Publication
    Titanium-Based Metal-Organic Framework And Its Modifications By Thermal Decomposition For Visible Light Photocatalytic Activity
    (2024-03)
    Abdul Mubarak, Nur Shazwani
    This study is divided into three sections. Firstly, MIL-125-NH2 was prepared using a solvothermal method with a constant inert gas flow to create an inert condition. Then, MIL-125-NH2 was calcined at various temperatures under an inert atmosphere (argon gas) to produce nitrogen-doped carbon porous titanium dioxide (N-C/TiO2). Following the same procedure, two different modifications of Ni-doped and ZnO composites were prepared by varying the weight percentage (wt%). Ni-doped (NC/NiT), and ZnO composites (NC/ZnOT) were produced by subjecting the optimal wt% of both modifications through different calcination temperatures under argon gas.
  • Publication
    Gerakan Environmentalisme Dan Hubungannya Dengan Proses Pendemokrasian Di Malaysia: Kajian Kes Di Perak (2008-2018)
    (2024-02)
    Abd Matalib, Mohamad Faizal
    Tesis ini mengkaji gerakan environmentalisme di negeri Perak dan impaknya ke atas proses pendemokrasian di negara ini. Bagi menjawab persoalan dan objektif kajian ini, kerangka teoritikal dan konseptual iaitu masyarakat sivil, gerakan environmentalisme dan pendemokrasian telah digunakan.
  • Publication
    Research On Photovoltaic Mppt Control Method Based On Improved Bas Algorithm And Variable Step-Size Inc Method
    (2024-03)
    Li, Wenli
    Solar energy has received widespread attention and has been developed due to its distinct advantages, such as abundant reserves and not restricted by geography. However, the PV module is easily affected by external environments in practical applications, leading to a decrease in PV power. MPPT technology for the PV power system is an effective method to improve the efficacy of PV electricity conversion. Commonly used control methods include CVT method, perturbation and observation method, and incremental conductance method. These methods differ greatly in terms of required parameters, algorithm complexity, tracking speed, tracking accuracy, hardware requirements, etc. In this study, a MPPT control method based on IBAS and VSINC was proposed to obtain a better performance in MPPT.
  • Publication
    Using Social Media To Support Descriptive Essay Writing And Online Interaction At Undergraduate Level: A Mixed Method Study
    (2024-01)
    Rashid, Muhammad
    This mixed method study aims at investigating the effectiveness of social media as mediating tools to support (a) descriptive essay writing and (b) online interaction at undergraduate level. To substantialize the aim of the study, the researcher selected three intact classes of BS (Bachelor of Science) 4th semester enrolled in a public sector Graduate College in Southern Punjab, Pakistan. To validate the study, a pilot study was conducted prior to the main study.