Browsing by Author "Ahmad Mahir Razali"

Now showing 1 - 4 of 4
  • Thumbnail Image
    ItemRestricted
    Analyzing the East Coast Malaysia Wind Speed Data
    (International Energy and Environment Foundation (IEEF), 2009) Siti Khadijah Najid; Azami Zaharim; Ahmad Mahir Razali; Mohd Said Zainol; Kamarulzaman Ibrahim; Kamaruzzaman Sopian
    Recently, wind energy conversion is also given a serious consideration in Malaysia. Since Malaysia lies in the equatorial region and its climate is governed by the monsoons, the potential for wind energy generation in Malaysia is very much depends on the availability of the wind resource that varies with specific location. In the present study, the wind energy potential of the location is statistically analyzed based on wind speed data, measured over two years period. The probability distributions are derived from the wind speed data and their distributional parameters are identified. Three types of probability distributions have been used to estimate the wind energy potential in Kuala Terengganu, east Malaysia.
  • Thumbnail Image
    ItemRestricted
    Modeling air quality in main cities of Peninsular Malaysia by using a generalized Pareto model
    (Elsevier, 2016) Nurulkamal Masseran; Ahmad Mahir Razali; Kamarulzaman Ibrahim; Mohd Talib Latif
    The air pollution index (API) is an important figure used for measuring the quality of air in the environment. The API is determined based on the highest average value of individual indices for all the variables which include sulfur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO), ozone (O3), and suspended particulate matter (PM10) at a particular hour. API values that exceed the limit of 100 units indicate an unhealthy status for the exposed environment. This study investigates the risk of occurrences of API values greater than 100 units for eight urban areas in Peninsular Malaysia for the period of January 2004 to December 2014.
  • No Thumbnail Available
    ItemMetadata only
    Peramalan sinaran suria global melalui kaedah berstatistik
    (Penerbit UKM) Ahmad Mahir Razali; Mohd. Anuar Abdul Karim
  • No Thumbnail Available
    ItemMetadata only
    Structural Change of Palm Oil Price Data
    (Penerbit UKM) Ahmad Mahir Razali; Lalang Buana; Zainodin Haji Jubok