Browsing School of Materials Engineering (Articles) by Title
Now showing items 457-476 of 560
-
Samarium ion exchanged montmorillonite for high temperature cumene cracking reaction
(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
(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 ... -
Sediment accretion in the Mangrove forests of Bebar River, Pahang, Malaysia: 230th concentration versus artificial marker method
(University of Malaya Maritime Research Centre, 2004)Mangrove forests are a buffer zone between the coast and the ocean. These tropical coastal areas are responsible for about 75% of the sediment discharged from land to sea. Mangrove ecosystem can act as an efficient sediment ... -
Selective extraction, separation and recovery of Cu(II) in presence of Zn(II) and Ni(II) from leach liquor of waste printed circuit board using microcapsules coated with Cyanex 272
(Springer Verlag, 2012-05)The study was conducted to optimize the selective extraction and recovery of Cu(II) in the presence of Zn(II) and Ni(II) from the leach liquor of waste printed circuit boards (PCBs). The extraction experiments were carried ... -
Self-compacting high density tungsten-bronze composites
(Elsevier, 2013-07)Green compacts of W–bronze were encapsulated in shells of bronze powder, placed in a ceramic mold and sintered in alumina tube furnace at 1150 °C. Throughout the sintering cooling stage the differential coefficient of ... -
The sensing mechanism and detection of low concentration acetone using chitosan-based sensors
(Elsevier B. V., 2013)This paper aims to discuss the usage of chitosan film sensors to detect acetone concentrations in human breath, in order to precisely diagnose diabetes mellitus in patients. Acetone concentration in the breath varies from ... -
Sensor fusion of electronic nose and electronic tongue for classification of Orthosiphon stamineus
(American Scientific Publishers, 2011-04)Sensor fusion of electronic nose (e-nose) and electronic tongue (e-tongue) has lead to an improved classification of Orthosiphon stamineus (also known as Misai Kucing). The fusion technique was presented and compared with ... -
Shear strain analysis in FSS microchannel
(AENSI Publications, 2013-10)Microfluidics has motivated the development of various fields in biological engineering due to its advantages. The favorable benefits of using microfluidicsare being easy to fabricate, requirement of minimal fluid volumes, ... -
Shift of band gap from direct to indirect and optical response of lif under pressure
(World Scientific Publishing Co. Pte Ltd, 2013-04)We hereby are reporting the transition pressure at which lithium fluoride (LiF) compound transforms from direct band gap to indirect band gap insulator on the basis of FP-LAPW calculations. The fundamental band gap of LiF ... -
A simple one-step anodising method for the synthesis of ordered porous anodic alumina
(Taylor & Francis, 2014)Porous anodic alumina (PAA) has been produced on aluminium substrate by single-step anodising at 50 V in 0.3 M oxalic acid at 15°C for 60 min. The highly ordered pore and cell structure was achieved by subjecting the PAA ... -
Simulation of Brillouin and Rayleigh scattering in distributed fibre optic for temperature and strain sensing application
(Elsevier B.V., 2013)This paper presents simulations of a distributed fibre optic sensor for temperature and strain sensing. The behaviours of Brillouin and Rayleigh scattering in optical fibres are studied through the backscatter signals. The ... -
Simultaneous extraction and separation of Cu(II), Zn(II), Fe(III) and Ni(II) by polystyrene microcapsules coated with Cyanex 272
(Elsevier B.V, 2009-02)The preparation of polystyrene microcapsules coated with Cyanex 272 (MC-Xs) have been investigated and simultaneous extraction and separation behavior of Cu(II), Zn(II), Fe(III) and Ni(II) in both batch and packed column ... -
Single-crystal oxoborate (Pb 3O) 2(BO 3) 2WO 4: Growth and characterization
(Elsevier Ltd, 2012-09)An oxoborate, (Pb 3O) 2(BO 3) 2WO 4, has been prepared by solid-state reaction methods below 620°C. Single-crystal XRD analysis shows that it crystallizes in the orthorhombic group Cmcm with a = 18.480(4) , b = 6.3567(13) ... -
Sintering behavior and microstructure evolution of mechanically alloyed W–bronze composite powders by two-step ball milling process
(Elsevier, 2013-01)The miscibility of W in Sn and Cu is extremely poor. Sintering of W–bronze composites to their full density is proved to be difficult. To tackle this problem, the ball milling process of the W–bronze powder mixture proposed ... -
Sintering effects on mechanical properties of Co-HA composite prepared by modified electroless deposition.
(Trans Tech Publications, 2014)Co-HA composite produced using electroless deposition without conventional sensitization and activation treatment was studied with varying sintering temperature (1100°C, 1200°C and 1250°C). The particles size, bulk density, ... -
Sol-gel synthesis and preliminary characterizations of novel silica hybrid xerogels
(Trans Tech Publications, 2013-12)Hybrid silica xerogel mesoporous composite was synthesized by a mild temperature acid catalysed sol-gel route where a natural copolymer; sodium alginate (Na-COOH) together with calcium oxide (CaO) powder were incorporated ... -
Sol-gel synthesis of novel silica hybrid xerogels : Porous studies
(Trans Tech Publications, 2014)Hybrid silica xerogel mesoporous composite was synthesized by a low temperature acid catalysed sol-gel route where a natural copolymer; sodium alginate (Na-COOH) together with calcium oxide (CaO) powder were incorporated ... -
Solar photocatalytic degradation of mono azo methyl orange and diazo reactive green 19 in single and binary dye solutions: Adsorbability vs photodegradation rate
(Springer-Verlag Berlin Heidelberg, 2013-05)The objective of this study was to examine the effects of adsorbability and number of sulfonate group on solar photocatalytic degradation of mono azo methyl orange (MO) and diazo Reactive Green 19 (RG19) in single and ... -
Static and dynamic compressive properties of mica/polypropylene composites
(Elsevier B. V., 2011-01-25)The static and dynamic properties of mica/polypropylene composites, with a mica content of 10, 15, 20% by weight, were studied at different levels of strain rates (from 10s-4 to 10s2), using a conventional Universal Testing ... -
Static and dynamic compressive properties of polypropylene/zinc oxide nanocomposites
(Wiley Periodicals, Inc., 2014-04)The effect of strain rate is widely recognized as an essential factor that influences the mechanical properties of polymer matrix composites. Despite its importance, no previous work has been reported on the high-strain ...