Materials Literature
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Chemical permeation testing of protective fabrics with methyl salicylate (MeS) has traditionally been carried out using swatch samples. Advanced techniques employ human manekins wearing complete ensembles, but permeate detection systems remain limited to off-line data analysis. A miniaturised manekin sensor network ca…
This paper investigates the unusual characteristics regarding the mechanical properties of Nylon‐11 filled with different volume fractions of silica nanoparticles by selective laser sintering (SLS) from numerical simulation. The compressive modulus was predicted by two different numerical models and compared with the…
A sample with a radiocarbon concentration estimated to be greater than 105 times Modern was inadvertently graphitized and measured in the Xi'an AMS system last year. Both the sample preparation lines and the ion source system were seriously contaminated and a series of cleaning procedures were carried out to remove th…
A theoretical investigation on structural and thermodynamic properties of 11-type iron-based superconductor FeSe at high pressure and high temperature was performed by employing the first-principles method based on the density functional theory. Some structural parameters of FeSe in both tetragonal and hexagonal phase…
A novel asymmetric hybrid electrochemical capacitor (EC) using manganese oxide/carbon nanotube array (MCNTA) and entangled carbon nanotube (ECNT) as the positive and negative electrode materials, respectively, and 1 M Na 2 SO 4 aqueous solution as the electrolyte has been developed. The discharge profile of the hybrid…
Background: The antimicrobial activity of silver nanoparticles has been investigated in medical fields in recent years, but there are few studies regarding its effect on oral microorganisms. The aim of the present study was to evaluate the in vitro antimicrobial and toxicity properties of nanosilver against two dental…
Abstract— The cathode‐luminescence (CL) emission of crystalline MgO, MgO:Si, MgO:Sc, and MgCaO, often used as a protective‐layer material in PDPs, were measured. In some of these materials, it was found that the UV emission band is located at a shorter wavelength than published in the literature and depends upon the t…
Mineral spas are considered an important national resource, used mainly for therapeutical and recreational purposes. However, raw mineral waters are often at temperatures different from the required ones and need to be cooled or heated to be adjusted to the level adequate for a specified purpose. For such an adjustmen…
High-quality epitaxial graphene has been a continuous focus of research interest owing to its viable device applications. Epitaxial graphene growth on silicon (Si) substrates is of great interest for its application to electronics. Here, we report experimental findings of atmospheric-pressure-grown epitaxial graphene…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Sohail Ahmed, Anita Ramli, Suzana Yusup; Effect of TEPA loading on the physicochemical properties…
In this work, we report the preparation of bimetallic core-shell nanoparticles (NPs) using a simple solution synthetic route. A typical example is the [email protected] NPs that are synthesized using oleylamine as solvent and reducing agent. The as-obtained [email protected] NPs exhibit a spherical morphology and a hi…
Bursting at the corner during calibration stage is a popular failure mode in hydroforming process of tubular part with polygonal sections. Bending of thin-walled tube is also a big obstacle for hydroforming process, especially for aluminum alloy tube. In this paper, a thin-walled aluminum alloy tubular part with polyg…
A functional carbon-nanotube (CNT)-composite paper is described in which the CNTs are aligned. This “aligned-CNT composite paper” is a flexible composite material that has CNT functionality (e.g., electrical conductivity) despite being a paper. An advanced fabrication method was developed to overcome the problem of pr…
The modules of nuclear quadrupole resonance (NQR) explosive detection system are introduced, and the key component—radiofrequency (RF) coil—is researched. In this paper, the small-sized solenoid coil's diameter, length and number of turns are defined. Experimental tests show that this coil has large signal-to-noise ra…
A new method of fabricating porous silicon detecting (Violet-UV) spectral regions is presented. This method uses a stencil mask contained matrix of round holes, typically 0.5 mm in diameter. SEM, and PL have been used to characterize the morphological and optical properties of the porous silicon (Psi). SEM shows unifo…
The fabrication of Mn-doped SiC materials by thermal reaction is an interesting method for obtaining SiC-based ferromagnetic semiconductors. Here we used x-ray photoemission and absorption measurements to study the reaction and diffusion of Mn in a 6 H-SiC single crystal substrate induced by a thermal treatment. In pa…
Grazing Incidence Small Angle X–ray Scattering (GISAXS) studies were conducted to determine the effect of oxygen on regular arrays of mono (Pd)– and bimetallic (Pd–Au) clusters. Unlike bimetallic Pd–Au particles, pure palladium clusters are not stable at a partial oxygen pressure of 10−6 mbar. A comparison of the expe…
Minor products in the reaction between substituted 1,3-diiminoisoindolines and 2,5-diamino-3,4-dicyanothiophene were identified as the nickel seco-tribenzoporphyrazines 4 and 5, which have been characterized by UV-vis, MCD, NMR, and mass spectroscopy. Experimentally observed tetraazachlorin-type UV-vis spectra of new…
The evolution of the strain state as a function of layer thickness of (0001) oriented ZnO epitaxial films grown by pulsed-laser deposition on Si (111) substrates with a thin oxide Y2O3 buffer layer was investigated by high resolution X-ray diffraction (XRD). The ZnO layers experience a tensile strain, which gradually…
A series of RGB molecules (FXs) with a tuneable light-emitting core and difluorenylamino-based peripheries were synthesized through the Heck coupling reaction in good yields. The intramolecular energy transfers and antenna effects were verified in this series of compounds. Strong photoluminescence (PL) from deep blue…