Browsing Journal Articles by Title
Now showing items 1364-1383 of 3386
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Finite Element simulation of takraw balls and their impact on a flat surface
(Kementerian Pendidikan Tinggi (KPT), MalaysiaInnovative Manufacturing, Mechatronics & Sports Lab (iMAMS), Universiti Malaysia Pahang, 2012)Takraw balls are used in sepak takraw games which are one of the most popular traditional games in Southeast Asian region. In this game, three players on each side of a 5-foot high net, get three chances to kick the ball ... -
Fire alarm system, portable fire extinguisher and hose real system maintenances for safety purpose and requirements
(Universiti Malaysia Perlis (UniMAP), 2009-12-01)Fire Fighting system or equipments are important elements in building safety measures in order to ensure people’s safety when fire occurs. The Fire Alarm Systems deserves the highest level of care and maintenance achievable. ... -
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 ... -
Fire resistance of biomass ash panels used for internal partitions in buildings
(Elsevier B.V., 2013)This study was to develop fire-resistant panels with a high biomass ash ratio from the combustion of EFB at an industrial scale to be used in different fire-resistant internal partitions in buildings and industrial ... -
First and second harmonic generation of the XAl 2Se 4 (X=Zn,Cd,Hg) defect chalcopyrite compounds
(Elsevier B.V., 2012-09)The chemical bonding of the ZnAl 2Se 4, CdAl 2Se 4 and HgAl 2Se 4 defect chalcopyrites has been studied in the framework of the quantum theory of atoms in molecules (AIM). The GW quasi-particle approximation is used to ... -
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 Enhanced Electronic Band Structure of SrTiO3 using DFT+U Method
(Universiti Malaysia Perlis (UniMAP), 2019-01)Density functional theory (DFT) technique was used to study the influence of Hubbard U on the calculated electronic properties of perovskite SrTiO3. We used the Quantum Espresso (QE) software package with exchange-correction ... -
First principles study of structural, electronic and magnetic properties of Mg1-xMnxTe alloys
(Elsevier B.V., 2011-08-11)Density functional FP-LAPW + lo calculations have been performed to study the structural, electronic and magnetic properties of Mg1-xMn xTe for compositional parameter x = 0.25, 0.50, 0.75 and 1. Our calculations reveal ... -
First principles study of the structural, elastic and electronic properties of Ti2InC and Ti2InN
(World Scientific Publishing Company, 2011-04-20)The structural, elastic and electronic properties of Ti2InC and Ti2InN compounds have been calculated using the full-potential linear muffin-tin orbital (FP-LMTO) method. The exchange and correlation potential is treated ... -
First-principle calculations to investigate the elastic and thermodynamic properties of RBRh 3 (R =Sc, y and La) perovskite compounds
(Taylor and Francis Group, 2012-01-20)We have performed first-principle calculations using the full-potential linear augmented plane wave (FP-LAPW) method within density functional theory (DFT) to investigate the structural, elastic and thermodynamic properties ... -
First-principles calculations of structural, elastic, electronic, and optical properties of perovskite-type KMgH3 crystals: Novel hydrogen storage material
(American Chemical Society, 2011-03-31)We report a first-principles study of structural and phase stability in three different structures of perovskite-types KMgH3 according to H position. While electronic and optical properties were measured only for stable ... -
First-principles calculations of the structural and electronic properties of AIN, GaN, InN, AIGaN and InGaN
(Universiti Malaysia Perlis, 2009)First principles calculations are carried out for A1N, GaN, InN, A1Gan and InGaN in various crystal structures. The computational method used to investigate the structural and the electronic properties is the full potential ... -
First-principles calculations of the structural, electronic and optical properties of cubic BxGa1−xAs alloys
(Elsevier B.V., 2012-04-15)Density functional calculations are performed to study the structural, electronic and optical properties of technologically important BxGa1−xAs ternary alloys. The calculations are based on the total-energy calculations ... -
First-principles calculations on structural, electronic and optical oroperties of Ce-, Nd- and Er-doped TiO2
(Universiti Malaysia Perlis (UniMAP), 2020-12)In this work, the first-principles calculations on the structural, electronic and optical properties of lanthanides (Ln)-doped anatase TiO2 using Ln elements from cerium (Ce), neodymium (Nd) and erbium (Er) were performed ... -
First-principles calculations to investigate optical properties of B yAl xIn 1-x-yN alloys for optoelectronic devices
(Elsevier Ltd., 2012-03)First-principles density-functional theory of Full-Potential Linear Augmented Plane Wave (FP-LAPW) within local density approximation (LDA) of the optical properties of B yAl xIn 1- x-yN systems (with x = 0.187 and y = ... -
First-principles study of CH4 and NH3 adsorption on graphene oxide epoxy and graphene oxide hydroxyl
(Universiti Malaysia Perlis (UniMAP), 2020-12)Chemical functionalities of graphene oxide play an important part in anchoring gas molecules and perhaps selective mechanism in gas sensor. The adsorption behavior of methane (CH4) and ammonia (NH3) gas molecules on graphene ... -
First-principles study of cubic BxGa1-xN alloys
(Universiti Malaysia Perlis, 2008)We present first-principles calculations of the structural and electronic properties of cubic for different concentrations x of ternary alloy BxGa1-x N. The computational method is based on the full-potential linearized ... -
First-principles study of spin-polarized electronic band structures in ferromagnetic Zn1-xTMxS (TM = Fe, Co and Ni)
(Elsevier B. V., 2010-10-22)We report a first-principles study of structural, electronic and magnetic properties of crystalline alloys Zn1-x TMx S (TM = Fe, Co and Ni) at x = 0.25. Structural properties are computed from the total ground state ...