Materials Literature
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Continuum solvent models have been shown to be an efficient method for the calculation of the energetics of biomolecules in solution. However, for these methods to produce accurate results, an appropriate set of atomic radii or volumes is needed. While these have been developed for proteins and nucleic acids, the same…
ADVERTISEMENT RETURN TO ISSUECommunication to the...Communication to the EditorNEXTPolar Nematic Phase in Lyotropic Solutions of Poly(γ-benzyl glutamate) and Its Temperature Instability As Detected by SHG MeasurementChu-Chun Yen*, Yoshiaki Taguchi, Masatoshi Tokita, and Junji WatanabeView Author Information Department…
Optical absorption and fluorescence spectra of Pr 3+ doped borosilicate glasses of the composition (in wt.%) 68.94 SiO222.55 Na2O-1.91 CaO-4.96 K2O -0.85 B2O3-0.29 As2O3-xPr6O11 where x = 0.0, 0.2, 0.3 and 0.5 have been studied in UV-VIS/NIR regions. Judd-Ofelt theory has been applied to the f ↔ f transitions for eval…
Multi‐walled carbon nanotube (MWCNT)/polythiophene (PTh) composites have been prepared by in situ chemical oxidative polymerization. PTh is synthesized onto the sidewalls of the MWCNTs, which play a role as hard templates for PTh to produce one‐dimensional nanostructures. The morphology and structures of the MWCNT/PTh…
Abstract The effect of accelerated aging on the structure and properties of single, metalized, and multilayer films used in food packaging was studied through the exposure of specimens of those films to repeated aging cycles in a weather meter under the combined action of ultraviolet, humidity, and heat. The aged spec…
Abstract: The microstructure of palygorskite from Longwang Mountain of Xuyu County, Jiangsu Province, was studied by energy dispersive X‐ray analysis (EDX), selected‐area electron diffraction (SAED) and high‐resolution transmission electron microscopy (HRTEM). The average composition of the palygorskite studied is (Si…
Initially developed for more than 20 years ago, the copper over zinc and aluminum oxide (ZnO/Al2O3) catalyst system is used for low-pressure methanol synthesis. Recently, the Cu/ZnO/Al2O3(CZA) was shown to be active in a dielectric-barrier discharge (low-temperature plasma). In this paper, the investigation on the cop…
77Se-enriched CpNi(bds) (bds = 1,2-benzenediselenolate), has been synthesized and its g tensor and 77Se hyperfine tensors have been obtained from its frozen solution electron paramagnetic resonance (EPR) spectrum. These parameters are consistent with those calculated by density functional theory (DFT); it is shown tha…
This paper proposes a combined approach of optimized charge simulation method (CSM) and hashing integrated adaptive genetic algorithm (HAGA) to the contour design of support insulators. In the combined approach, the HAGA determines the optimal displacement ratio and number of fictitious charges used in CSM, and then o…
Organically-modified montmorillonite (MMT) clays have been prepared using ammonium salts containing quinoline, pyridine, benzene, and styrenic groups. The nanocomposites were prepared by melt blending and the formation of nanocomposites was characterized using X-ray diffraction (XRD) and transmission electron microsco…
In this paper, the biomineralization of calcium carbonate through the cooperative interactions between self-assembled monolayers (SAMs) and multiple soluble additives was first investigated. The polymorphs and morphologies of products were well controlled by the existence of ordered surface and the co-effect of silk f…
LiCoO2 xerogel hollow nanofibers were first prepared by co‐electrospinning the sol precursor, and the polycrystalline LiCoO2 hollow nanofibers were obtained after calcination of the xerogel fibers. The obtained hollow nanofibers made up of 20∼30 nm nanocrystals were about 100 nm to several micrometers in outer diamete…
Abstract The effects on microbiologically induced corrosion (MIC) of mild steel resulting from the presence of corrosion products in the biofilm of sulphate‐reducing bacteria (SRB) have been investigated. The culture‐media‐containing sulphide of biogenic origin was used to find out the effect of metal‐sulphide layers…
The importance of measuring interface pressure and stiffness to characterize the elastic properties of materials has been stressed with regard to elastic stockings and elastic bandages. The objective of this study was to compare the pressure profiles of nine different elastic stockings and to quantify the effects of p…
A thin buffer layer of cadmium oxide (CdO) was used to enhance the optical and electrical properties of indium tin oxide (ITO) films prepared by an electron-beam evaporation technique. The effects of the thickness and heat treatment of the CdO layer on the structural, optical and electrical properties of ITO films wer…
The effects of nanometric grain size (ϕ=14–28nm) modulation on the behavior of magnetoimpedance (MI), magnetoresistance, and magnetic properties of chemically synthesized a series of single-phase soft ferromagnetic nanocrystalline colossal magnetoresistance La0.7Sr0.3MnO3 (LSMO) manganites at room temperature have bee…
Abstract We present a parametric dielectric function model in depen‐ dence of the intercalated charge per tungsten ion ratio x , which excellently describes the ellipsometric experimental data, and allows the identification of two polaron modes corresponding to transitions between W 4+ and W 5+ and between W 5+ and W…
The evolution of the electronic properties of a thin film of copper phthalocyanine deposited on Al(100) and progressively intercalated with rubidium atoms was followed by photoemission and X-ray absorption spectroscopies. Electron donation from the Rb atoms to the C 32 H 16 N 8 Cu molecules results in the lifting of t…
The ceramics with Pb1.04Zr0.52Ti0.48O3 + z wt.% Cr2O3 were prepared using the traditional technique. The effects of Cr2O3 doping on the phase structure, the microstructure, and the electrical properties of ceramics were investigated. Meanwhile, the temperature stabilities of the resonant frequency (fr) were studied. T…
Based on the density functional theory, we study the magnetic coupling properties of Mn-doped ZnO nanowires. For the nanowires with passivated surfaces, the antiferromagnetic state is found and the Mn atoms have a clustering tendency. When the distance between two Mn atoms is large, the system energetically favors the…