Now showing items 1-10 of 170
Review on fly ash-based geopolymer concrete without portland cement
(Universiti Malaysia Perlis (UniMAP), 2010-10-16)
This paper summarizes the factors that affect the properties of fly ash-based geopolymer concrete. Alkaline activator is an important material that controls the properties of geopolymer concrete. The workability of fresh ...
Influence of activator composition on the properties of calcined kaolin geopolymeric powder
(Universiti Malaysia Perlis (UniMAP), 2012-06-18)
This paper studied the influence of activator composition on the properties of calcined kaolin geopolymeric powder. The alkaline activation of calcined kaolin was performed in mixture of waterglass liquid and NaOH solution ...
Government mechanism in managing natural disasters in Malaysia: achievement factors
(Diponegoro University, 2007-09-11)
Malaysia is considered safe from earthquakes. However, it experiences other types of natural disasters such as monsoon floods, landslides and severe haze. In Malaysia, the management of disaster is presently executed through ...
Dispersion of the linear and nonlinear optical susceptibilities of disilver germanium sulfide from DFT calculations
(Springer Science+Business Media New York., 2013-03)
The dispersion of the linear and nonlinear optical susceptibilities is calculated for disilver germanium sulfide (Ag2GeS3) using the all-electron full potential linearized augmented plane wave (FP-LAPW) method. Calculations ...
Bismuth in gallium arsenide: Structural and electronic properties of GaAs 1-xBi x alloys
(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 ...
Peranan institusi pengajian tinggi dalam memartabatkan dan memperkasakan Institusi Raja di Malaysia
(Universiti Malaysia Perlis (UniMAP), 2013-06-05)
Electronic structure and magneto-optic Kerr effect in ferromagnetic titanium oxyphosphates Li 0.50Co 0.25TiO(PO4): An ab-initio study
(Elsevier Ltd., 2012-06)
The X-ray diffraction for Li 0.50Co 0.25TiO(PO 4), was used as a starting point to perform structural optimization by minimizing the forces acting on the atoms. We have performed a comprehensive theoretical study of ...
Amino acid 2-aminopropanoic CH 3CH(NH 2)COOH crystals: Materials for photo- and acoustoinduced optoelectronic applications
(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 ...
Compaction optimization of Sn-Cu-Si3N4via powder metallurgy route for composite solder fabrication
(Trans Tech Publications, 2013)
The aim of this study was to optimize the compaction process of a composite solder fabricated via powder metallurgy route, before details study were conducted in the next stage. Powder of Sn, Cu and Si3N4 were carefully ...
Application of clay - based geopolymer in brick production: A review
(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 ...