Center of Excellence for Geopolymer and Green Technology (CEGEOGTECH) (Articles): Recent submissions
Now showing items 81-100 of 135
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Numerical investigation of heat transfer of twelve Plastic Leaded Chip Carrier (PLCC) by using computational fluid dynamic, FLUENT™ software
(Trans Tech Publications, 2013)Plastic Leaded Chip Carrier (PLCC) package has been emerged a promising option to tackle the thermal management issue of micro-electronic devices. In the present study, three dimensional numerical analysis of heat and fluid ... -
The effect of gap between plastic leaded chip carrier (PLCC) using computational fluid dynamic (CFD) software, FLUENT™
(AENSI Publisher All rights reserved, 2013-10)This paper presents the effect of gap between Plastic Leaded Chip Carrier (PLCC) by using three dimensional numerical analysis of heat and fluid flow in computer. 3D model of microprocessors is built using GAMBIT and ... -
The comparison between four PLCC packages and eight PLCC packages in personal computer (PC) using computational fluid dynamic (CFD), fluent software™ using epoxy moulding compound material (EMC)
(Trans Tech Publications, 2013)The paper present the three dimensional numerical analysis of heat and fluid flow through Plastic Leaded Chip Carrier (PLCC) packages in inline orientation horizontally mounted on a printed circuit board in a wind tunnel ... -
Development of nano-material (nano-silver) in electronic components application
(AENSI Publisher All rights reserved, 2013-10)This paper presents the development of nano-material in electronic components especially in Plastic Leaded Chip Carrier (PLCC) application. The effect of nano-material in Plastic Leaded Chip Carrier (PLCC)will improve ... -
Physicochemical properties of pyrolitic carbon black from waste tyres
(Trans Tech Publications, 2014)Waste tyres which are mainly generated from automotive industries have become a major environmental problem to the local authorities, the tyre industries and tyre dealer. When tyres are no longer usable due to worn-out, ... -
The need to intensify research efforts in the alternative to lead shot
(Trans Tech Publications, 2014)The problem of lead poisoning resulting from the use of lead shot in hunting waterbirds and shooting sports has led to the partial ban, voluntary restriction and complete ban of lead shot in some countries. The ban resulted ... -
Effect of pyrolysis temperature on the synthesis of carbon fiber from natural organic waste
(Trans Tech Publications, 2014)Carbon fibers are produced from natural sources of water hyacinth plants that have been dried, ground and sieved to three different particle sizes of 600 μm, 300 μm and less than 300 μm. Through the analysis of data obtained ... -
Compressive strength and morphology of fly ash based geopolymer as artificial aggregate with different curing temperature
(Trans Tech Publications, 2014)This paper presented the compressive strength of geopolymer paste with different NaOH concentration and morphology analysis for sintered artificial aggregate. This artificial aggregate was produce based on mix design with ... -
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 ... -
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 ... -
Effect of annealing atmosphere on the morphology of copper oxide thin films deposited on TiO₂ substrates prepared by sol-gel process
(Trans Tech Publications, 2014)Copper oxide films were prepared via sol-gel like spin coating starting from methanolic solutions of cupric chloride onto the TiO₂ substrates. Films were obtained by spin coating under room conditions (temperature, 25-30 ... -
Effects of trans-polyoctylene rubber in polypropylene/recycled acrylonitrile butadiene/rice husk powder composites
(Trans Tech Publications, 2014)Composites of polypropylene/Acylonitrile butadiene rubber/Rice husk powder/ (PP/NBRr/RHP) with and without trans-polyoctylene rubber (TOR) were prepared, and the effects of trans-polyoctylene rubber were investigated. By ... -
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 ... -
Tensile and morphological properties of low density polyethylene/ spear grass composites
(Trans Tech Publications, 2014)The spear grass content on the tensile properties, morphology of low-density polyethylene (LDPE)/spear grass was investigated. The compatibilising effect of epoxidised natural rubber (ENR 50) LDPE and spear grass was mixed ... -
Production of silicon carbide via grinding and heat treatment process
(Trans Tech Publications, 2014)This study is to determine the properties and characterization of silicon carbide via grinding and heat treatment process. In this study, the raw materials used were waste glass and graphite powder. Silicon carbide was ... -
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 ... -
A study of liberation and separation process of metals from printed circuit boards (PCBS) scraps
(Trans Tech Publications, 2013-12)Since the metallic elements are covered with or encapsulated by various plastic or ceramic materials on printed circuit boards (PCBs), a pre-treatment process allowing their liberation and separation is first needed in ... -
On the structure of shape memory alloys
(Trans Tech Publications, 2013-12)The paper presents the obtaining of shape memory alloys, base copper and a diffractometer and microscopic study on some samples. The study was made on CuZnAl samples, obtained by classic casting and educated. The shape ... -
A study on relationship between porosity and compressive strength for geopolymer paste
(Trans Tech Publications, 2013-12)This paper presents a study on the relationship between porosity and compressive strength for geopolymer paste. In this research, geopolymer paste was made from fly ash class F based geopolymer mixed with alkaline activator; ... -
Effect of fly ash/alkaline activator ratio and sodium silicate/NaoH ratio on fly ash geopolymer coating strength
(Trans Tech Publications, 2013)Fly ash geopolymer coating material potential used to protect surface used in exposure conditions. Ratio of fly ash/alkaline activator and Na₂SiO₃/NaOH play important parameter on determining the best flexural strength of ...