Browsing Center of Excellence for Geopolymer and Green Technology (CEGEOGTECH) (Articles) by Title
Now showing items 55-74 of 135
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Feasibility study on composition and mechanical properties of marine clay based geopolymer brick
(Trans Tech Publications, 2014)Geopolymer is an inorganic polymer performed in synthesis process of an aluminosilicate material which activated by alkaline activator solution. Marine clay, considered to be a waste substance which have an important ... -
Filling missing data using interpolation methods: Study on the effect of fitting distribution
(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 ... -
Fire resistance evaluation of lightweight geopolymer concrete system exposed to elevated temperatures of 100-800 °C
(Trans Tech Publications, 2014)This paper reports the fire resistance property of a lightweight aggregate geopolymer concrete (LWAGC) material synthesized by the alkali-activation of locally source fly ash (FA) after exposed to elevated temperatures ... -
First principle calculations of transition metal oxide, AgAlO2, as active photocatalyst: sustainable alternative sources of energy
(Electrochemical Science Group (ESG), 2013)Electronic structure, optical properties and electronic charge density of transition metal oxide, AgAlO2 as active photocatalyst are calculated using full potential linearize augmented plane wave (FP-LAPW) method within ... -
First principle study of electronic structure, chemical bonding and optical properties of 5-azido-1H-tetrazole
(Electrochemical Science Group (ESG), 2013)First principle calculations were performed to investigate the electronic band structure, density of states, charge density and optical properties of 5-azido-1H-tetrazole. The calculated band structure shows that the ... -
First principle study of the electronic structure, Fermi surface, electronic charge density and optical properties of ThCu₅In and ThCu₅Sn single crystals
(Elsevier/NORTH-HOLLAND, 2014-02)The electronic structure, Fermi surface, electronic charge density and optical properties of ThCu₅In and ThCu₅Sn single crystals are studied. The calculations are based on the full potential-linearized augmented plane wave ... -
First-principles study of structural stabilities, elastic and electronic properties of transition metal monocarbides (TMCs) and mononitrides (TMNs)
(Elsevier Ltd., 2013-12)The structural stabilities, elastic and electronic properties of 5d transition metal mononitrides (TMNs) XN with (X = Ir, Os, Re, W and Ta) and 5d transition metal monocarbides (TMCs) XC with (X = Ir, Os, Re and Ta) were ... -
First-principles study of the electronic structure, charge density, Fermi surface and optical properties of zintl phases compounds Sr2ZnA 2 (A=P, As and Sb)
(Elsevier Ltd., 2013-11)We present first-principles calculations of the electronic structure, Fermi surface, electronic charge density and optical properties of Sr 2ZnA2 (A=P, As and Sb) based on density-functional theory using the local density ... -
Halal based sourced EM for turbidity reducing in wastewater treatment
(Trans Tech Publications, 2014)Effective Microorganism (EM) technology was found as the credible solution to solve many environmental problems including wastewater issues. The EM which is in the form of EM mud ball was tested to be effectively used for ... -
Half-metallic ferromagnetism in Al1-xCrxP and superlattices (AlP)n/(CrP)m by density functional calculations
(Elsevier, 2014-01)Using the first-principles full-potential linear muffin-tin orbital (FP-LMTO) method based on density functional theory, we have investigated the electronic structure and magnetism of order dilute ferromagnetic semiconductor ... -
Improving warpage on thin shallow parts in two-plate moulds with conformal cooling channels
(Praise Worthy Prize S.r.l., 2013-03)Nowadays, the trend of consumer products designed is getting smaller and most of cover is made from plastic which was produced by using injection molding process. Thus, the demand of thin shallow plastic parts in global ... -
The influence of CB, silica and CaCO₃ on tensile and morphological properties of vPE/rPE/EPDM blends
(Trans Tech Publications, 2014)The virgin polyethylene (vPE) and recycled polyethylene (rPE) was melt blended with ethylene propylene diene terpolymer (EPDM) in different ratio by using a Haake Rheomix at 180°C and 50 rpm were prepared. The characterization ... -
The influence of cure characteristics and crosslink density of virgin acrylonitrile butadiene rubber/recycled acrylonitrile butadiene rubber (vNBR/rNBR) blends
(Trans Tech Publications, 2014)Cure characteristics and crosslink density of virgin acrylonitrile butadiene rubber/recycled acrylonitrile butadiene rubber (vNBR/rNBR) blends were studied. Three different size ranges of rNBR particles, i.e., 150 - 350 ... -
Influence of dolomite on the mechanical properties of boiler ash geopolymer paste
(Trans Tech Publications, 2014)The waste material from palm oil industry has been increasing since Malaysia was the world largest exported of palm oil mill. The waste such as palm fibers, nut shells, palm kernel and empty fruit bunches are the solid ... -
Influence of mechanical alloying on dielectric features of ferroelectric BaTio₃ microcrystals
(ESG, 2014)Dielectric features of BaTiO₃ microcrystals made by mechanical alloying method in the ball mill of SPEX 8000 are studied. Temperature and hysteresis loops are investigated and Curie temperature as well as dielectric constant ... -
Insulator to metal transition and optical response of CsCl under pressure
(World Scientific Publishing Company, 2014-03)First principle calculations on cesium chloride (CsCl) compound have been performed using state of the art full potential linearized augmented plane wave (FP-LAPW) method. Calculated structural parameters are found in ... -
Investigation performance of heat exchanger on thermoacoustic heat engine for harvesting a waste heat
(Trans Tech Publications, 2014)A green technology of acoustic of fluid-structure interactions become an emerging technology today, a call thermoacoustic heat engine. Thermoacoutics heat engine systems convert the energy on a harvesting from a waste heat ... -
Isothermal aging affect to the growth of Sn-Cu-Ni-1 wt. % TiO2 composite solder paste
(Trans Tech Publications Ltd., 2016-07)This work investigated the effects of 1.0 wt. % TiO2 particles addition into Sn-Cu-Ni solder paste to the growth of the interfacial intermetallic compound (IMC) on Cu substrate after isothermal aging. Sn-Cu-Ni solder paste ... -
Kenaf bast-unsaturated polyester composite: The effect of different alkaline treatment condition on tensile properties
(Trans Tech Publications, 2014)The biocomposites were prepared by using kenaf bast fiber mat as reinforcing materials at different percentage. The kenaf bast fiber was treated with alkaline at different sodium hydroxide (NaOH) percentage. Composites ... -
Linear and nonlinear optical susceptibilities and the hyperpolarizability of borate LiBaB9O15 single-crystal: theory and experiment
(American Chemical Society, 2013-11)The single-crystal borate LiBaB9O15 was synthesized by a high-temperature solution reaction and structurally determined by the single-crystal X-ray diffraction technique. It crystallizes in the noncentrosymmetric space ...