Materials Literature
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OBJECTIVE: The importance of type V collagen and its relationships with other types of collagen and with vascular and epithelial apoptosis were studied in a model of chemical carcinogenesis in the mouse lung. METHODS: TWO GROUPS OF MALE BALB/C MICE WERE STUDIED: a) animals that received two intraperitoneal doses of 3…
Structural and energy characteristics of the smallest magnetic endofullerene Fe@C20 have been calculated using the density functional theory approach. The ground state of Fe@C20 is found to be a septet state, and the magnetic moment of Fe@C20 is estimated to be 8 Bohr magnetons. Characteristics of an (8,8) carbon nano…
Abstract A novel high energetic material, 1‐amino‐1‐methylamino‐2,2‐dinitroethylene (AMFOX‐7), was synthesized through 1,1‐diamino‐2,2‐dinitroethylene (FOX‐7) reacting with methylamine in N‐methyl pyrrolidone (NMP) at 80.0°C, and its structure was determined by single crystal X‐ray diffraction. The crystal is monoclin…
In this study, we had demonstrated the direct growth of nonpolar a-plane GaN on an r-plane sapphire by metal organic chemical vapor deposition (MOCVD) without any buffer layer. First, in this experiment, we had determined the optimum temperature for two-step growth, including obtaining three-dimensional (3D) GaN islan…
The optical modulation properties of twisted-nematic liquid-crystal display (TN-LCD) can be totally predicted and optimized when its Jones matrix is known. An improved method for determining the Jones matrix of the TN-LCD without knowing its internal parameters is presented in this paper. Only three sets of intensity…
Transient liquid phase bonding between single crystal superalloy DD98 and polycrystal superalloy M963 has been characterised in terms of microstructure, crystallographic orientation analysis and stress rupture test. Result shows that during isothermal solidification (IS), with increasing bonding time, the liquid inter…
Formation of nanosized self assembled monolayers (SAMs) of carboxyl terminated 16-Phosphonohexadecanoic acid (16-PA) and methyl terminated Octadecylphosphonic acid (ODPA) on Cobalt-Chromium (Co-Cr) alloy have been successfully demonstrated. Nanosized monolayers were formed by adsorption of these phosphonic acid SAMs o…
Transmission electron microscopy is utilized to study the gels formed from aqueous solutions of L-cysteine and silver nitrate on a nanolevel structure in the presence of various anions. It is established that the anion’s charge and geometrical size have an existential effect on the structure and mechanical properties…
Fluidised bed combustion (FBC) ashes containing a significant amount of free calcium oxide and calcium sulfate in addition to valuable inorganic acidic oxide ingredients such as silicon oxide, ferric oxide and aluminium oxide can be utilised as potential raw materials in the production of non-expansive belite-rich cal…
Low-energy ion scattering (LEIS) can be used to selectively analyse the atomic composition of the outer atomic layer of a catalyst, i.e., precisely the atoms that largely determine its activity and selectivity. It is shown how a new development in LEIS significantly improves its mass resolution. Using this advanced se…
We demonstrate the fabrication of micropore and nanopore features in hollow antiresonant reflecting optical waveguides to create an electrical and optical analysis platform that can size select and detect a single nanoparticle. Micropores (4 μm diameter) are reactive-ion etched through the top SiO(2) and SiN layers of…
Surface relief of austenitic stainless 316L steel cycled with constant plastic strain amplitude at 93, 173 and 573 K to different early stages of fatigue life was studied using atomic force microscopy (AFM) and high resolution scanning electron microscopy (SEM–FEG). Characteristic features of surface relief topography…
The main objective of this study was to find out how well three non-contact tonometers (Pulsair, Xpert-NCT and CT-20) compare with the Goldmann tonometer (GT). Sensitivity, specificity, positive and negative predictive values were all evaluated for an intraocular pressure (IOP) > or = 21 mm Hg. We also calculated the…
The endothelium is one of the key targets for pharmacological interventions in oxidative stress and thrombosis, two conditions that are notoriously difficult to treat due to limited efficacy and precision of action of current drugs. Design of molecular and nano-devices that deliver potent antioxidant and antithromboti…
ABSTRACT Lead-free flux technology for electronic industry is mainly driven by high soldering temperature, high alloy surface tension, miniaturization, air soldering due to low cost consideration, and environmental concern. Accordingly, the flux features desired included high thermal stability, high resistance against…
LaAlO3 has gained attention in the last few years because of its favorable microwave dielectric properties, excellent lattice matching and a good matching for thermal expansion. Nanoparticles of LaAlO3 were produced by using gelatin as an organic precursor. The optimum temperature for the phase formation of the precur…
The paper aims to propose a more realistic low frequency noise and TCR mechanisms in polymer thick film resistors. The variation of low frequency noise (also called current noise) and TCR of polymer thick film resistor, namely, PVC-graphite thick film resistor, with parameters such as high volume fraction and grain si…
The phase composition and morphology of the diffusion-hardened compound containing Cu/Bi mechanocomposite with nanoscale metals and liquid gallium were examined by synchrotron radiation X-ray diffraction, as well as by atomic force and electron microscopic techniques.
ABSTRACT The objective of this study was to determine the effects of pre‐harvest Mg supplementation and stunning method on longissimus (LM) and semitendinosus (SM) pork muscle quality. Magnesium was supplemented for 2 days in drinking water (300 ppm) before pigs were harvested at a commercial packing plant using eithe…
Jiangsu Key Laboratory for Chemistry of Low-Dimentional Materials, Huaiyin Teachers College, Huaiyin 223300, P. R. China(Received: 30 August 2009. Accepted: 2 November 2009)A novel amidothiourea based multisensing anion chemosensor bearing a monopyrrolo[3,4- b]tetrathiafulvalene moiety ( 1) have been designed and synt…