Materials Literature
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We have demonstrated the direct the synthesis of graphene on SiO 2 substrates by transfer-free processes. An amorphous layer was sandwiched between a Ni layer and a SiO 2 /Si substrate, and then the sample was annealed under H 2 and Ar ambient. The measurements by scanning electron microscopy and Raman spectroscopy re…
In order to improve the electrical characteristics of transformer oil-impregnated pressboard, transformer oil-based nanofluids were used to impregnate pressboards. It is found that nanofluid-impregnated pressboard (NP) exhibits substantially higher AC and DC breakdown voltage than that of pure oil-impregnated pressboa…
This study compares the structure and decomposition behaviors of the α, β, and γ polymorphs of Ca(BH 4 ) 2 for hydrogen storage. Samples with different polymorphic contents are characterized using powder X-ray diffraction and vibrational spectroscopy. Decomposition paths and formation of decomposition products are mon…
In Finland, overhead covered conductors (CC) are commonly used in the medium voltage (MV) networks because the distribution loads in rural areas are not heavy and are widely distributed in the forested terrain. Such parts of the network are exposed to leaning trees and therefore partial discharging into the overhead C…
Abstract The Triassic-Jurassic boundary (TJB) is marked by one of the five largest Phanerozoic mass extinctions. To constrain existing models for TJB events, we obtained a stratigraphically highly resolved dataset from a marine section at Kendlbachgraben, Austria. The topmost Triassic Kössen Formation contains low to…
This study describes the effects of deposition potential and deposition time on the electrodeposition of Polyaniline (PANi) films on indium tin oxide (ITO)-coated glass substrate. It was found that the aniline with 0.5M in 1M H2SO4started to polymerize on ITO substrate at + 0.70 V vs Ag/AgCl. Chronoamperometry was use…
Cadmium sulphide nanofilms have been deposited by chemical bath deposition technique on glass substrates. The effect of S/Cd molar ratio on the structural, morphological, and optical properties of CdS nanofilms has been investigated. Structural parameters have been analyzed using x-ray diffractometer. Scanning electro…
Graphite particle generation by interpebble abrasion and by abrasion of pebbles with the containment vessel during operation of a pebble bed reactor is an issue of interest in the safety analysis of this class of very high temperature reactor. To understand particle generation, we have constructed an apparatus to gene…
This study investigated the mechanical and thermal performance of short sugar palm (Arenga pinnata) fibre-reinforced high impact polystyrene composites. Fibre sizes of 30-50 mesh and five different fibre loadings from 10 to 50% by weight have been used. The melt mixing method and hot compression moulding were used as…
Fabric and garment drape were compared using an alternative drape measurement system based on an image analysis technique. Garment drape was investigated using dresses suspended on a mannequin. A graphical user interface was developed to carry out the image analysis and to calculate drape values identifying and determ…
A detailed investigation of the mechanism for the hydrogen release and uptake reactions in LiBH4–Al reactive composites by in-situ synchrotron radiation powder x-ray diffraction (SR-PXD) is presented. Different compositions of LiBH4–Al and the effect of the additive titaniumdiboride, TiB2, are investigated. This study…
The high substrate specificity of fluoroacetate dehalogenase was explored by using crystallographic analysis, fluorescence spectroscopy, and theoretical computations. A crystal structure for the Asp104Ala mutant of the enzyme from Burkholderia sp. FA1 complexed with fluoroacetate was determined at 1.2 Å resolution. Th…
BACKGROUND: The aim of this study was to improve the drug loading, encapsulation efficiency, and sustained-release properties of supercritical CO(2)-based drug-loaded polymer carriers via a process of suspension-enhanced dispersion by supercritical CO(2) (SpEDS), which is an advanced version of solution-enhanced dispe…
Nanocrystalline Tb-doped ZnO films have been prepared by ion-beam sputtering technique. Magnetic characterization showed that the films are ferromagnetic with Curie temperature (TC) higher than room temperature. By further treated with a rapid thermal annealing process, both the grain size and the carrier concentratio…
Chitosan is a well known anti-microbial polymer. It is desired to develop and evaluate chitosan based structures with high surface area using electrospun nanofibers. To explore the properties of chitosan derivatives, iminochitosan was synthesized and electrospinning of its solutions was conducted. Nanofibers were obta…
Abstract The mechanism of formation of detrital, beidellite-rich clay occurring in the Agadir basin (Morocco) is well documented, but its detailed characterization is incomplete which limits its application. The aim of the present study was to provide further details of the mineralogical and physico-chemical character…
Abstract The powders of peanut shell is first liquefied with the mixture of polyethylene glycol‐400 and monoethylene glycol (MEG) using sulfuric acid at 160°C for 2 h. Polyurethane (PU)‐type rigid foam is prepared from the reaction between peanut shell liquefied with the MEG and diphenylmethane diisocyanate. Then the…
Semiconductor nanoparticles (NPs) became important and wide-used tool for cell imaging because of their unique remarkable properties. Nevertheless, all previous investigations in this area were done on proliferating cells. For the first time, this work demonstrates strong influence of cell active proliferation/contact…
High-pressure structural phase transitions in NaNiF(3) and NaCoF(3) were investigated by conducting in situ synchrotron powder X-ray diffraction experiments using a diamond anvil cell. The perovskite phases (GdFeO(3) type) started to transform into postperovskite phases (CaIrO(3) type) at about 11-14 GPa, even at room…
Carbon nanoparticles are a promising material which finds application in different fields in industry and medicine. For medical applications, biocompatibility of nanoparticles is of critical importance because a lot of medical implants are coated by carbon coating. Our previous results showed that nanoparticles may in…