Now showing items 1-20 of 257

    • Absorption and photoconductivity spectra of Ag 2GeS 3 crystal: Experiment and theory 

      Ali Hussain, Reshak, Prof. Dr.; Auluck, Sushil, Dr.; Piasecki, Michał M.; Myronchuk, G. L.; Parasyuk, O.; Kityk, Iwan V; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (Elsevier B.V., 2012-07)
      Spectral features of polycrystalline Ag 2GeS 3 samples synthesized from high-purity elements (at least 99.99 wt.% purity) in quartz ampoules evacuated to 0.1 Pa were explored. The band energy gap of Ag 2GeS 3 crystals ...
    • Acentric nonlinear optical 2,4-dihydroxyl hydrazone isomorphic crystals with large linear, nonlinear optical susceptibilities and hyperpolarizability 

      Ali Hussain, Reshak, Prof. Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Auluck, Sushil, Dr. (American Chemical Society, 2012-04)
      A systematic ab initio study of the linear, nonlinear optical susceptibilities, and hyperpolarizability of noncentrosymmetric-monoclinic 2,4-dihydroxyl hydrazone isomorphic crystals (DHNPH) within density functional theory ...
    • Agregat Ringan Sebagai Bahan Binaan 

      Khairul Nizar, Ismail; Kamarudin, Hussin (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Alam Sekitar & Pusat Pengajian Kejuruteraan Bahan, 2008)
      Pengenalan : Penggunaan agregat ringan sebagai bahan binaan di negara ini masih belum digunakan secara meluas. Walau bagaimana pun pengingkatan penggunaan konkrit ringan di dalam industri pembinaan memangkin kepada penggunaan ...
    • Alkali activated blast-furnace slag cement: The opportunity to solve sustainable issues 

      Aimi Noorliyana, Hashim; Mohd Mustafa Al Bakri, Abdullah; Azira, M.N.; Noor Mariamadzliza, Mohd Nan; Kamrosni, Abdul Razak; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (American-Eurasian Network for Scientific Information, 2013)
      This paper aimed at investigating the possibility of alkali activated blast-furnace slag (BFS) to produce cement powder that could be alternative to ordinary Portland cement. It was found that an alkali activated BFS ...
    • Alteration in the microstructure of fly ash geopolymer upon exposure to elevated temperatures 

      Omar A., Abdulkareem; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (Trans Tech Publications, 2013)
      This paper represents the mechanical and microstructure changes in geopolymeric material synthesized by the alkali activation of locally source fly ash at high temperatures of 400, 600 and 800 °C. The high compressive ...
    • Aluminium - Polymer abs product 

      Mohd Ichwan, Nasution; Kamaruddin, Hussin; Shamsul Baharin, Jamaludin; Che Mohd Ruzaidi, Ghazali; Khairel Rafezi, Ahmad; Faizul, Che Pa; Chek Idrus, Omar (Universiti Malaysia Perlis (UniMAP), 2012)
      Material used for aluminium product usually made of aluminium scrap. Currently, the price of aluminium scrap is increase. It is necessary to minimize the cost of production by reducing the weight of the aluminium product ...
    • Amino acid 2-aminopropanoic CH 3CH(NH 2)COOH crystals: Materials for photo- and acoustoinduced optoelectronic applications 

      Ali Hussain, Reshak, Prof. Dr.; Lakshminarayana, Gandham; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Kityk, Iwan V.; Auluck, Sushil, Dr.; Berdowski, Janusz M.; Tylczynski, Zbigniew (Springer Science+Business Media, LLC, 2012-10)
      Photo-induced treatment of L-alanine single crystals grown by slow evaporation method at an ambient temperature was performed using a 25 ps Nd:YAG pulsed laser in the presence of an external acoustic filed. The changes of ...
    • Application of clay - based geopolymer in brick production: A review 

      Muhammad Faheem, Mohd Tahir; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohamed, Bnhussain, Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Mohd Izzat, Ahmad (Trans Tech Publications, 2013)
      This paper reviews and summarizes the current knowledge and application of clay as a geopolymer material in production of geopolymer brick. As we understand, the nature of source materials give a significant impact to the ...
    • Assessment of physical and mechanical properties of cement panel influenced by treated and untreated coconut fiber addition 

      Shamsul, Baharin Jamaludin, Prof. Dr.; Mohamed Iylia, Anwar; Mazlee, Mohd Noor, Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Alida, Abdullah (Elsevier BV, 2011)
      This project was conducted to produce a cement panel with the addition of treated and untreated coconut fiber in cement panel. Coconut fiber was added to replace coarse aggregate (sand) in this cement panel. In this project, ...
    • Band structure, density of states, and crystal chemistry of ZrGa₂ and ZrGa₃ single crystals 

      Ali Hussain, Reshak, Prof. Dr.; Lakshminarayana, Gandham; Ebothe, Jean; Fedorchuk, Anatolii O.; Fedyna, M.F.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mandracci, P.; Auluck, Sushil, Dr. (Elsevier, 2013-04)
      Using FP-LAPW Method we have performed calculations of the band structure of the ZrGa₂ and ZrGa₃ crystals. The all-electron full potential linearized augmented plane wave method was used to solve the Kohn Sham DFT equations. ...
    • ‘Batu Reput’ used as raw material in fertilizer production 

      Mohd Nazry, Salleh; Farizul Hafiz, Kasim; Khairul Nizar, Ismail; Che Mohd Ruzaidi, Ghazali; Kamarudin, Hussin; Saiful Azhar, Saad; Suhardy, Daud (Malaysian Institute for Nuclear Technology Research (MINT), Xapp Malaysia-MNS & Universiti Kebangsaan Malaysia (UKM), 2006-11-29)
      ‘Batu Reput’ is primary sediment mineral and abundantly found in Perlis. Perlis is one of the major producers of ‘Batu Reput’ in Malaysia that content large deposit of high-purity dolomite [CaMg (CO3)2]. Pure samples of ...
    • Bismuth in gallium arsenide: Structural and electronic properties of GaAs 1-xBi x alloys 

      Ali Hussain, Reshak, Prof. Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Auluck, Sushil, Dr. (Elsevier Inc., 2012-02)
      The structural and electronic properties of cubic GaAs 1-xBi x alloys with bismuth concentration 0.0, 0.25, 0.50, 0.75 and 1.0 are studied using the 'special quasi-random structures' (SQS) approach of Zunger along with the ...
    • Calcined kaolin geopolymeric powder: Influence of water- to geopolymeric powder ratio 

      Liew, Yun Ming; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Binhussain, M.; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; cheng, Yong Heah (Trans Tech Publications, 2012-07)
      This paper describes the synthesis of calcined kaolin geopolymeric powder from the alkaline activation of calcined kaolin followed by solidification and pulverizing process. The geopolymeric powder was used by just adding ...
    • Characterization of BET, XRF and weight loss on dolomite and calcined dolomite heated at different heating time 

      Mokhzani Khair, Ishak; Khairul Nizar, Ismail; Banjuraizah, Johar; Kamarudin, Hussin; Wan Mohd Sabki, Wan Omar (Universiti Sains Malaysia (USM)School of Materials & Mineral Resources Engineering (SMMRE), 2009-06-01)
      Dolomite consist carbonate of calcium and magnesium (CaC03 and MgCO^). It is formed [CaMg (CO^J from chemical action of sea-water containing high magnesium on limestone. The purpose of this study is to characterize dolomite ...
    • Characterization of limestone and dolomite using x-ray fluorescent (XRF) for cement processing 

      Mokhzani Khair, Ishak; Khairul Nizar, Ismail; Kamarudin, Hussin; Wan Mohd Sabki, Wan Omar; Banjuraizah, Johar; Mohd Nazry, Salleh; Umar, Kassim (Mineral Research Centre, 2009-11-09)
      Dolomite and limestone is considered under a sedimentary carbonated rocks. It contains almost same compound but major difference is on the amount of MgO and CaO which prove with XRF testing. MgO for dolomite shows 23% and ...
    • Characterization of LUSI mud volcano as geopolymer raw material 

      Mohd Mustafa Al Bakri, Abdullah; Rafiza, Abdul Razak; Djwantoro, Hardjito, Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (Trans Tech Publications, 2012)
      The mud of mud volcano samples were collected from an eruption site named 'LUSI' (Lumpur "mud" -Sidoarjo), East Java, Indonesia for characterization. Analysis showed that, the major constituents of mud are SiO 2 and Al 2O ...
    • Characterization of LUSI mud volcano as geopolymer raw material: A review 

      Rafiza, Abdul Razak; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Djwantoro, Hardjito, Dr. Ir.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      This paper summarizes the current knowledge about the potential of LUSI mud volcano, East Java, Indonesia as a raw material in geopolymer. Previous experimental study shows that the LUSI mud has a good performance when 5% ...
    • Characterization of porous aluminum fabricated via sintering- dissolution process (SDP) 

      Shamsul Baharin,  Jamaludin, Prof. Dr.; Nik Mohd Fikry, Mohd Rushdi; Alida, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr. (Trans Tech Publications, 2013)
      Porous metals that have open pores structure with low density and light weight properties are suitable to be used in many engineering applications. In this work, the porous aluminum was fabricated via sintering dissolution ...
    • Characterizations on the effect of processing of polymers blend with petroleum coke (part I) 

      Sharifah Shahnaz, Syed Abu Bakar, Dr; Rabah, Khenata, Prof. Dr.; Veena, Sahajwalla; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Nik Noriman, Zulkepli, Dr.; Sam, Sung Ting, Dr. (Trans Tech Publications, 2013)
      Global demand for plastics has grown significantly over the past decades, and will continue to expand with rising income levels in emerging economies; a number of approaches have been used to recycle polymer waste. While ...
    • Chemical & Mineralogical Properties of Fly Ash 

      Khairul Nizar, Ismail; Kamarudin, Hussin; Mohd Sobri, Idris (Malaysian Nuclear Society, 2007)
      Fly ash is the finely divided mineral residue resulting from the combustion of coal in electric generating plants. Fly ash consists of inorganic, incombustible matter present in the coal that has been fused during combustion ...