Now showing items 1-18 of 18

    • Assessment of various probability distributions to model Pm 10 concentration for industrialized area in peninsula Malaysia: a case study in Shah Alam and Nilai 

      Norazian, Mohamed Noor; Tan, Cheng Yau; Nor Azam, Ramli; Ahmad Shukri, Yahaya; Noor Faizah Fitri, Md Yusof (AENSI Publications, 2011-12)
      In Malaysia, the predominant air pollutants are suspended particulate matter (SPM) and nitrogen dioxide (NO 2). This research focused on PM10 as they may trigger harm to human health as well as environment. Six distributions, ...
    • Characteristics of airborne Pm₂.₅ and Pm₂.₅-₁₀ in the urban environment of Kuala Lumpur 

      Mohd Rashid, Mohd Yusof; T.G., Chuah; Shuhaimi, M.; Sara Yasina, Yusuf, Dr.; Norazian, Mohamed Noor (Scientific.Net, 2012-12)
      Gravimetric and elemental analyses were conducted at a site in Kuala Lumpur from 2008 to 2010, representing the local air quality of urban and traffic. Eighteen elements were detected by ED-XRF and was further analysed for ...
    • Comparison of Linear Interpolation Method and Mean Method to Replace the Missing Values in Environmental Data Set 

      Norazian, Mohamed Noor; Mohd Mustafa, Al Bakri Abdullah; Ahmad Shukri, Yahaya; Nor Azam, Ramli (Universiti Malaysia Perlis (UniMAP), 2007-06-09)
      Missing data is a very frequent problem in many scientific field including environmental research. These are usually due to machine failure, routine maintenance, changes in siting monitors and human error. Incomplete ...
    • Estimation of missing values in air pollution data using single imputation techniques 

      Norazian, Mohamed Noor; Shukri, Yahaya Ahmad; Azam, Ramli Nor; Mohd. Mustafa Al Bakri, Abdullah (Science Society of Thailand, 2008)
      Air pollution data obtained using automated machines often contain missing values which can cause bias due to systematic differences between observed and unobserved data. We used interpolation and mean imputation techniques ...
    • Filling missing data using interpolation methods: Study on the effect of fitting distribution 

      Norazian, Mohamed Noor; Ahmad Shukri, Yahaya, Prof. Madya; Nor Azam, Ramli, Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah (Trans Tech Publications, 2014)
      The presence of missing values in statistical survey data is an important issue to deal with. These data usually contained missing values due to many factors such as machine failures, changes in the siting monitors, routine ...
    • Malaysian Foxtail grass - A potential source of natural/agro fibre for polymer composite panel 

      Che Mohd Ruzaidi, Ghazali, Prof. Madya; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Norazian, Mohamed Noor; Rafiza, Abdul Razak; Zarina, Yahya (Trans Tech Publications, 2013)
      Foxtail grass, also known as 'rumput bulu' by the local people, is one of the fast growing grasses abundantly available all over Malaysia. A full grown Foxtail grass attains a height of about 0.5 - 1.5 meters. The fibres ...
    • Mean imputation techniques for filling the missing observations in air pollution dataset 

      Noorazian, Mohamed Noor; Ahmad Shukri, Yahaya, Prof. Madya; Nor Azam, Ramli, Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah (Trans Tech Publications, 2014)
      Almost all real life datasets consist missing values. These are usually due to machine failure, routine maintenance, changes in siting monitors and human error. The occurence of missing values requires special attention ...
    • Mechanical properties of polymer composites with sugarcane bagasse filler 

      Mohd Mustafa Al-Bakri, Abdullah; Liyana, Jamaludin; Norazian, Mohamed Noor; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya (Trans Tech Publications, 2013)
      Natural fibers reinforced polymer composites have gained more interest because of their biodegradable, light weight, less expensive sources, easy processing, high specific modulus and also environmentally friendly appeal. ...
    • Mechanical properties of ZTA composite using cold isostatic pressing and uniaxial pressing 

      Mohd Mustafa Al-Bakri, Abdullah; Ahmad Fauzi, Mohd Noor, Prof. Dr; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Norazian, Mohamed Noor; Mohd Arif Anuar, Mohd Salleh; Alida, Abdullah (Trans Tech Publications, 2013)
      Alumina-zirconia composite is an engineering material with a great potential to be develop for application as high temperature resistance structural material. In this research, zirconia toughness alumina (ZTA) was produced ...
    • Modelling of PM 10 concentration for industrialized area in Malaysia: A case study in Shah Alam 

      Norazian, Mohamed Noor; Mohd Mustafa, Al Bakri Abdullah; Tan, Cheng Yau; Nor Azam, Ramli; Ahmad Shukri, Yahaya; Noor Faizah Fitri, Md. Yusof (Elsevier BV, 2011)
      In Malaysia, the predominant air pollutants are suspended particulate matter (SPM) and nitrogen dioxide (NO 2). This research is on PM 10 as they may trigger harm to human health as well as environment. Six distributions, ...
    • Optimization of alkaline activator / fly ash ratio on the compressive strength of manufacturing fly ash-based geopolymer 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; O. A. K. A., Karem; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Rafizah, Abu Rashid; Norazian, Mohamed Noor (Trans Tech Publications, 2012)
      Fly ash and a mixture of alkaline activators namely sodium silicate (Waterglass) and sodium hydroxide (NaOH) solution were used for preparing geopolymer. The aim of this research is to determine the optimum value of the ...
    • Roles of imputation methods for filling the missing values: A review 

      Norazian, Mohamed Noor; Ahmad Shukri, Yahaya, Prof. Madya; Nor Azam, Ramli, Prof. Dr.; Noor Faizah Fitri, Md. Yusof, Dr.; Mohd Mustafa Al Bakri, Abdullah (AENSI Publisher All rights reserved, 2013-10)
      Missing data are often encountered in many areas of research. Complete case analysis and indicator method can lead to serious bias. One of the comforting methods is implementation of imputation methods. The main purpose ...
    • Strength of concrete based cement using recycle ceramic waste as aggregate 

      Mohd Mustafa Al-Bakri, Abdullah; Norazian, Mohamed Noor; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Arif Anuar, Mohd Salleh; Adila, Abdullah (Trans Tech Publications, 2013)
      The main focus of this research is to study the strength of concrete with ceramic waste as coarse aggregate. The sources of ceramic waste are obtained from the industrial in Malaysia. Presently, in ceramics industries the ...
    • Strength of concrete with ceramic waste and quarry dust as aggregates 

      Mohd Mustafa Al-Bakri, Abdullah; Norazian, Mohamed Noor; Mazlan, Mohamed; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Liyana, Jamaludin (Trans Tech Publications, 2013)
      This research focuses on a study of the strength of concrete with ceramic waste as coarse aggregate and quarry dust as fine aggregate. The sources of ceramic waste and quarry dust are obtained from the industrial in Malaysia. ...
    • Study of concrete using modified polystyrene coarse aggregate 

      Mohd Mustafa Al-Bakri, Abdullah; Zarina, Yahya; Norazian, Mohamed Noor; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Rafiza, Abdul Razak (Trans Tech Publications, 2013)
      Polymer recycling has received a great deal of attention in recent years. At the present time, small percentages of polymer wastes in Malaysia are being recycled. The recycling process has typically consisted of reprocessing ...
    • Usage of palm shell activated carbon to treat landfill leachate 

      Aeslina, Abdul Kadir; Mohd Mustafa, Al Bakri Abdullah; Sandu, Andrei Victor; Norazian, Mohamed Noor; Alia Lisanah, Abd Latif; Kamarudin, Hussin (Alexandru Ioan Cuza University of Iasi, 2014-03)
      Leachate generated from the municipal landfill contains organic and inorganic pollutants, including heavy metals, which makes it unsuitable to be discharged in natural bodies without any prior treatment. The objective of ...
    • Variation of air pollutant (particulate matter - PM10) in peninsular Malaysia: study in the southwest coast of peninsular Malaysia 

      Norazian, Mohamed Noor; Ahmad Shukri, Yahaya; Nor Azam, Ramli; Luca, Florin Alexandru; Mohd Mustafa, Al Bakri Abdullah; Sandu, Andrei Victor (SYSCOM 18 SRL, 2015-09)
      Particulate matter (PM10) received great attention due to its potential to cause adverse health effects. In this study, the variation of tne long-term PM10 concentration from monitoring records in the southwest coast of ...
    • Variations of Ground-level Ozone Concentration in Malaysia: a case study in West Coast of Peninsular Malaysia 

      Nur Izzah, Mohamad Hashim; Norazian, Mohamed Noor (EDP Sciences, 2016)
      Hourly ground ozone concentration, measured from the monitoring stations in the West Coast of Peninsular Malaysia for the period of 10 years (2003-2012) were used to analyse the ozone characteristic in Nilai, Melaka and ...