Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The paper presents the results of a study of the formation and decay of lattice defects in nonlinear optical crystals of NH4H2PO4 (ADP), KH2PO4 (KDP), Li2B4O7 (LTB) and LiB3O5 (LBO) with a sublattice of mobile hydrogen (ADP, KDP) and lithium (LTB, LBO) cations. By means of the luminescent and absorption optical spectr…
Four kinds of biodegradable polymers were immersed in water around 301 K and 351 K for fixed periods from 1 to 720 hours, and their degradation was studied by observing their shapes, weights, molecular weights, and space charge distributions. Samples tested were poly-L-lactic acid (PLLA), polycaprolactone butylene suc…
The study was carried out on the survival of Escherichia coli and Aeromonas hydrophila in samples of mineral waters. Enumeration of the bacteria was performed by spread inoculation of samples (0.1 cm3) over the surface of selected media in Petri plates. Twenty bottles (four bottles of each of the five brands) of non-c…
The growth process of cerium oxide nanoparticles has been investigated by synchrotron Small-Angle x-ray scattering (SAXS) and x-ray absorption near edge spectroscopy (XANES) as a function of the annealing temperature in the range from 298 K to 973 K in atmosphere. The SAXS experimental intensity increases dramatically…
We report on a polarized x-ray absorption spectroscopy study, combining experimental measurements and ab initio calculations, of La 0.7 Sr 0.3 MnO 3 films, epitaxially grown on tensile and compressive substrates. Measurements show significant modifications in the coordination shell around manganese atoms in the film p…
Soy protein has great potential to partially replace petroleum based adhesives. Theweakness of protein-based adhesive has relatively low water resistance. Various chemical andenzymatic methods have been employed to improve the adhesive properties of soy protein. Thisresearch studied the effects of esterification on ad…
The purpose of this study is to examine whether molecular dynamics (MD) simulations using a commercially available software for personal computers can estimate the glass transition temperature (Tg) of amorphous systems containing pharmaceutically-relevant excipients. MD simulations were carried out with an amorphous m…
Phase variations of a wave transmitted through a monolayer of spherical scatterers are studied as functions of size, optical constants, and particle concentration for light incident normally to the surface of the layer. The analysis is performed in the quasi-crystal approximation of the theory of multiple scattering o…
Gas insulated switchgears, also called gas insulated substation, is applied to power system widely. Running experiences have shown that switching operations generates very fast transient overvoltage, which has steep front and is followed by high frequency oscillations. VFTO spreads out of GIS and endangers the equipme…
The crystallization of ergosterol was performed using water-immiscible hexane as a solvent. It was found that a ppm-level of water contained in hexane plays an important role in the change in the morphology of precipitates. The morphology of the ergosterol precipitates changed from thin needle-like crystals to spheric…
First, the dissolution of water into different types of oxides is discussed, including the influence of the water pressure and the oxygen activity. Then the transport of water, i.e. of hydrogen–containing species, in such oxides and its dependence on the water pressure and the oxygen activity is analyzed. Hydrogen–con…
Abstract The effect of sunlight and drying methods on the strength of Real Wax printed cotton fabrics produced in Ghana was determined. Warp and weft specimens were washed using the Standard Launder‐Ometer (Gyrowash 315). Each laundered or unlaundered specimen was aired or dried on a flat surface or on clothesline in…
In a CANDU (CANada Deuterium Uranium) reactor, fuel channel integrity depends on the coolability of the moderator as an ultimate heat sink under transient conditions such as a loss of coolant accident (LOCA) with coincident loss of emergency core cooling (LOECC), as well as normal operating conditions. This study pres…
The influence of permanent-magnet-driven stirring during solidification on the microstructure and corrosion property of AZ61 magnesium alloy was investigated. The corrosion behaviour of AZ61 was studied in 3.5mol/L NaCl by measuring electrochemical polarization. The results show that the permanent-magnet stirring refi…
The as-grown PrAlO3 single crystals grown by the Czochralski method are brown colored and after annealing in the reducing atmosphere (20%) H2/N2 they change the color to green. The X-ray photoelectron spectroscopy was used to study the chemical composition and electronic structure of PrAlO3 single crystals before and…
(graphite/PVC) segregated composites with different concentrations of graphite and their application to the shield effectiveness of electromagnetic radiation in the X-band frequency range 8–12 GHz. The incorporation of graphite is related to the formation of conducting channels. It is found that conducting channels ar…
JFE Steel Group developed a new fine iron oxide powder JC-FH04. Fine magnetic powders, which are obtained by applying a wet synthesis method, are oxidized by heating to produce high purity fine iron oxides with specificsurface areas above 1.2 X 10 4 m 2 /kg. It is confirmed that the sintering temperature of NiCuZn fer…
Using grand canonical ensemble Monte Carlo method,the effect of micropores,mainly the hollow cores of single-walled carbon nanotubes(SWNTs) and the interstitial channel among SWNTs,on the hydrogen adsorption of SWNTs was studied.Comparing with experimental observations,it was found that the hollow cores of SWNTs are t…
The modified myrica rubra extract suitable for tanning heavy leather at low temperature tanning was prepared by sulfitation with compound containing nitrogen added. It was found thatthe modified myrica rubra extract's viscosity was significantly decreased and its astringency was gentle. Quantitative analysis and tanni…
The in situ intercalated polymerization of vinyl acetate (VAc)-montmorillonite (MMT) was initiated via γ-ray irradiation in a 6 kCi ~(60)Co irradiator and got the MMT-PVAc nanocomposites, as well as we got the PVAc. Blends of PVAc/PA6/HDPE (PHA) and MMT-PVAc/PA6/HDPE (PMHA) were prepared in a Rheomixer XSS-300 as 50 g…