Now showing items 440-459 of 561

    • Radiation shielding characteristics of concretes incorporates different waste materials 

      Ali Basheer, Azeez; Kahtan Sadiq, Muhammed, Dr.; Mohd Mustafa Al Bakri, Abdullah; Hana, Ihsan Hasan (Trans Tech Publications, 2014)
      Samples of concrete incorporate different waste materials such as iron filings, iron balls of used ball bearings and slags from steel industry were assessed for their anti-radiation attenuation coefficient properties. The ...
    • Recycled copper as the conductive filler in polyester composites 

      Teh, Pei Leng; Ng, H. T.; Yeoh, Cheow Keat (Universiti Teknologi Malaysia, 2011-03)
      In this study, the effect of recycled copper on the electrical, mechanical and thermal stability properties of the polyester composites was investigated. Electrical conductivity results revealed that increasing in ...
    • Recycled high density polyethylene / natural rubber / chicken feather fibers (RHDPE/NR/CFF) composites: The effects of fiber loading and benzyl urea on tensile 

      Yazid, M.I.M.; Supri, Abdul Ghani, Prof. Madya Dr.; Firuz, Zainuddin, Dr.; Luqman, Musa, Dr. (Trans Tech Publications Inc., 2013-09)
      The effects of benzyl urea into RHDPE/NR/CFF composites with different fibers loading were studied. The composites were prepared using BrabenderPlasticorder at 160 °C with rotor speed of 50rpm. The composites were characterized ...
    • Recycling Agricultural Waste from Palm Shells during Electric Arc Furnace Steelmaking 

      Nur Farhana, M. Yunos; Magdalena, Zaharia; M. Asri, Idris; Nath, Dilip; Khanna, Rita; Sahajwalla, Veena (American Chemical Society, 2012-01-19)
      The present study is focused on developing novel recycling of palm shell wastes as a carbon resource in electric arc furnace (EAF) steelmaking. Metallurgical coke was replaced by palm shells, and interactions with EAF slag ...
    • Research advances of composite solder material fabricated via powder metallurgy route 

      Mohd Arif Anuar, Mohd Salleh; Muhammad Hafiz, Hazizi; Mohd Mustafa Al Bakri, Abdullah; Nik Noriman, Zulkepli; Ramani, Mayapan; Zainal Ariffin, Ahmad (Scientific.Net/Trans Tech Publications, 2012-12)
      Researches and studies on composite solder have been done by many researchers in an effort to develop viable lead-free solders which can replace the conventional lead-based solders as lead is considered as toxic. Solder ...
    • Research development of solder materials and its intermetallic compound (IMC) study 

      Mohd Arif Anuar, Mohd Salleh; Najib Saedi, Ibrahim; Saud, N.; Mohd Mustafa Al Bakri, Abdullah; Nik Noriman, Zulkepli; Ramani, Mayapan; Zainal Ariffin, Ahmad (Scientific.Net/Trans Tech Publications, 2012-12)
      Nowadays, the formation and the subsequent growth of the intermetallic compounds (IMCs) and the development of new lead-free solder systems is a major issue in soldering. The excessive growth formation of intermetallic ...
    • Response of functionality graded hydroxyapatite/F-75 in saline solution 0.9% NaCl 

      Noorazimah, Mohd Ab Llah; Shamsul Baharin,  Jamaludin, Prof. Dr.; Nur Hidayah, Ahmad Zaidi (Trans Tech Publications, 2013)
      Functionally graded hydroxyapatite (HAP) /F-75 was fabricated using powder metallurgy technique. Samples fabricated were tested inside 0.9% NaCl to check their bioactivity reaction. After immersed, samples were analyzed ...
    • Review of extraction of silica from agricultural wastes using acid leaching treatment 

      Faizul, Che Pa; Md Fazlul, Bari; Abdullah, C. (Trans Tech Publications, Switzerland, 2012-12)
      Large quantities of agricultural wastes such as palm ash and rice husk are found in Malaysia, have a large possibility to be employed as usefully renewable to produce energy and silica (SiO2). Extensive researches have ...
    • Review of the characterization and processing of palm ash as a geopolymer composite 

      Zarina, Yahya; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (American Scientific Publishers, 2013-01)
      Malaysia is the world's largest producer and exporter of palm oil and it produces a million tons of palm oil waste annually. Palm ash is a by-product from the use of palm oil shells and palm oil bunches, which are used to ...
    • Reviews on the different sources materials to the geopolymer performance 

      S. N. Fifinatasha; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Zarina, Yahya; Rafiza, Abdul Razak; Liyana, Jamaludin (AENSI Publisher All rights reserved, 2013-10)
      Geopolymer is manufactured from the aluminosilicate source material in example fly ash, silica fume, kaolin, ground granulate blast slag (GGBS), boiler ash and volcano ash reactivated via alkaline solution. But the different ...
    • Reviews on the Geopolymer materials for coating application 

      Zarina, Yahya; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Rafiza, Abdul Razak (Scientific.Net, 2012-12)
      The application of geopolymer has been expand in many areas where before this it only used for the production of cement and concrete. One of the new applications of geopolymer is for coating. Metakaolin, fly ash and ...
    • Reviews on the properties of aggregates made with or without geopolymerisation method 

      Rafiza, Abdul Razak; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Prof. Madya Dr.; Djwantoro, Hardjito, Dr.; Zarina, Yahya (Scientific.Net/Trans Tech Publications, 2012-12)
      Aggregates are popular for use in concrete and lightweight concrete applications. Recent research shows that the by-product materials such as fly ash can be used as raw material in producing aggregates and lightweight ...
    • Rice husks microwave absorbers 

      Mohd Fareq, Abd Malek; Nornikman, Hassan; Soh, Ping Jack; Azremi, Abdullah Al Hadi; Supri, A. Ghani (Universiti Malaysia Perlis (UniMAP), 2010-12)
    • Rietveld quantitative phase analysis of non-stoichiometric cordierite synthesised from mainly talc and kaolin: Effect of sintering temperature 

      Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Ariffin, Ahmad (Trans Tech Publications, Switzerland., 2011)
      Indialite or α-cordierite was synthesized by glass crystallization method using mainly talc and kaolin and with small amount of MgO, Al 2O3, SiO2 to compensate the chemical formulation of non-stoihiometric compositions of ...
    • The role of Sodium Benzoate in controlling corrosion of stainless steel in seawater environment 

      S. Y., Seoh; Mohammed Misbahul, Amin; H. B., Senin (University College of Science and Technology Malaysia, 2003)
      The controlling corrosion of stainless steel has been investigated under the sea water environment. The aim of this study is to prevent the stainless steel from corrosion by using sodium benzoate as inhibitor. Three set ...
    • Role of tautomerism and solvatochromism in UV–VIS spectra of arylhydrazones of β-diketones 

      Wojciech, Kuznik; Maximilian, N. Kopylovich; Gunel, I. Amanullayeva; Armando, J.L. Pombeiro; Ali Hussain, Reshak, Prof. Dr.; Kamran, T. Mahmudov; Kityk, Iwan V (Elsevier B.V., 2012-07)
      New arylhydrazones of β-diketones, 5-chloro-3-(2-(1-ethoxy-1,3-dioxobutan-2-ylidene)hydrazinyl)- 2-hydroxybenzenesulfonic acid (1), 3-(2-(1-ethoxy-1,3-dioxobutan-2-ylidene)hydrazinyl)-2-hydroxy- 5-nitrobenzenesulfonic ...
    • The role of the activator rich-W interboundary layer on liquid phase sintering of W-pre-alloy bronze composites of Fe and Co additions 

      Kahtan S, Muhammed, Dr.; Azmi, Rahmat, Prof. (Elsevier B.V., 2012-11)
      In this study, the effects of 1-3 wt.% Fe and Co additions on the sintering of W 40-80wt.%-pre-alloy bronze Sn 10 wt.%-Cu compacts were examined. The isothermal part of the sintering process was conducted at temperatures ...
    • 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 ...
    • Samarium ion exchanged montmorillonite for high temperature cumene cracking reaction 

      Binitha, N. N.; Silija, P. P.; Suraj, V.; Z., Yaakob; Sugunan, S. (IOP Publishing Ltd, 2011-02-18)
      Montmorillonite clay is cation exchanged with samarium and its catalytic influence in cumene cracking reaction is investigated. Effect of exchange with sodium ions on further exchange with samarium ions is also noted. ...
    • Sand replacement materials (SRM) in sustainable cement composites; A concise review 

      Madzura, Mohamad; Mazlee, Mohd Noor, Dr.; Shamsul Baharin,  Jamaludin, Prof. Dr. (Trans Tech Publications, 2013)
      This paper presents a short review of research works on the development of sustainable cementitious matrix composites with addition of potential mineral wastes as sand replacement materials. The study emphasizes on the ...