Materials Literature
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A bacterial cellulose-alginate composite sponge (BCA) was developed for use as a cell carrier in ethanol fermentation. Its hydrophilicity was improved by oxygen plasma treatment. Due to the etching effect in plasma application, the external surface roughness of treated BCA was increased, resulting in a decrease of adv…
Ti doped aluminum zinc oxide thin film was prepared by DC reaction magnetron sputtering method on the transparent glass substrates. The structure and thermoelectric performance of the deposited (TAZO) thin films are studied by various methods. XRD pattern shows that the TAZO thin film exhibits hexagonal wurtzite struc…
It is the objective of this study to present the 3-dimensional comprehensive computational fuel cell dynamics (CFCD) model of a scaled-down single PEM cell featuring a nominal active surface of 0.0004 m2 for both conventional and serpentine flow field designs. The performance of these two designs are then analysed and…
Purpose The purpose of this work is to develop flexible as well as rigid polyurethane coating by using mixed polyol. It is developed by using low cost reactant such as polyether and introducing branching in it. Design/methodology/approach Radiation curable branched polyurethanes were synthesised. In this work, branche…
In this work, we have (i) evaluated the ability of the EMAP method implemented in the CHARMM program to generate the correct conformation of Ab/Ag complex structures and (ii) developed a support vector machine (SVM) classifier to detect native conformations among the thousands of refined Ab/Ag configurations using the…
The first absorption spectra recorded in Europe using synchrotron radiation as the X-ray source were the K-edge of Al and the LIII-edge of Cu taken at Frascati electron synchrotron in May 1963 by the French-Italian group comprised of Y. Cauchois, C. Bonnelle and G. Missoni.
The appliance industry requires a reliable method for wrinkle evaluation in textile materials. This method is necessary to assess the performance of new designs of tumble dryers. In this paper, we describe an objective evaluation system for wrinkle appearance grading based on the digital analysis of luminance images.…
OBJECTIVES: Grafted, non-occluded coronary arteries might contribute substantially to the myocardial blood supply and serve as a basis for vascular collateralization which preserves the myocardium in the event of graft occlusion. Early studies indicated that grafting with saphenous vein, but not internal mammary arter…
This paper deals with expanded polystyrene (EPS) as a potential source of smoke. We compared specific optical density of smoke from EPS and EPS strengthened by glass fibre mash and plaster which is used in external thermal insulation composite systems (ETICS). There was used testing method by ISO 5659 Plastics Smoke g…
Characteristic features of SOFC stacks are summarized in their relations to fabrication sequences adopted for respective stack designs. Important correlation has been obtained between degraded parts and their sintering temperatures; a lower sintering temperature gives rise to more vulnerability against microstructure…
Coaled carbon-based solid acid (Coal-SO3H) was prepared by sulfonating ultra-low ash Taixi coal and characterized by XPS, IR and PXRD. It was used as a new, efficient and recyclable catalyst for fructose dehydration to form 5-hydroxymethylfurfural (5-HMF) in dimethyl sulfoxide (DMSO). Reaction time, temperature and ca…
The hydrolysis reaction of sodium borohydride (NaBH4) can generate highly pure hydrogen. In this paper, the Co-Y-B catalyst is prepared using the simple chemical reduction method. Its catalytic reactivity is investigated for different NaBH4 concentrations, NaOH concentrations, the catalyst amounts and the reacting tem…
Analytical expression for the Hall conductivity σyx in graphene is derived in more general case, in which magnetic field is not perpendicular to the plane of the sample. The derivations were carried out using Kubo-Greenwood formulism, which is more suitable when the spectrum is discrete. The results are analyzed as a…
Purpose The purpose of this paper is to study the corrosion protective properties of modified urea and/or thiourea formaldehyde resins for steel surface. Design/methodology/approach Three butyl alcohol modified amino resins were laboratory prepared. The three modified resins were characterized using thermal gravimetri…
Blends of recycled LDPE and LDPE were prepared by the twin-screw extruder at different ratios. Recycled LDPE was used as matrix in this work, LDPE was used to improve the properties of RLDPE. Thermal and rheological properties of the blends were carefully evaluated and compared with pure LDPE. DSC measurements indicat…
A visible light photocatalytic system consisting of Eosin Y containing trace vitamin B12 (VB12) as a light harvesting unit, multiwalled carbon nanotubes (MWCNTs) as an electron transfer channel and CuO as a hydrogen evolution center (abbreviated to Eosin Y/VB12-MWCNTs-CuO) was prepared on the basis of the synergistic…
Inflatable offshore fender barrier structures are anti terrorist structures that function primarily to either stop an impacting vessel, incapacitate its crew or delay terror events. In a quest to ensure effective utilization of the compressed air in the barrier which functions to increase barrier stiffness, dissipate…
In this paper, industrial grade metatitanic (H2TiO3) from sulphate process was used as the raw material to prepare TiO2 through a series of modification. Granular and honeycomb SCR DeNOX catalysts were made by granulation and molding processes respectively with those TiO2 as the carrier material. The characterisation,…
A technique to encapsulate silver nanoparticles in an amorphous carbon matrix to facilitate nanoparticle collection and limit nanoparticle oxidation is presented. A carbon source added to the metal salt precursor solution decomposes to generate amorphous carbon, which forms large aggregates that are efficiently collec…
CO2 corrosion is the main safety problem of production process in gathering, delivering and treating of oil and gas. Injecting inhibitors to suppress CO2 corrosion in oil and gas fields is an easy-to-use, low investment, quick solution method. The goal of this study is to summarize the already established research res…