Materials Literature
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Various methods for the low temperature processing of mesoporous nanocrystalline metal oxide semiconductor (TiO2, ZnO and SnO2) have been reviewed. These routes mainly associate a deposition technique (“spin-coating”, “doctor-blading”, “dip-coating”, electrophoretic deposition, screen-printing) of metal oxide layers w…
The real and imaginary parts of the magnetic permeability at frequencies of 0.1, 1.0, and 10.0 kHz, as well as the electron paramagnetic resonance (EPR) line width and g-factor, have been measured in Sm x Mn1 − x S (0.10 < x < 0.25) solid solutions in the temperature range 5–300 K. The logarithmic dependence of the ma…
Cardiomyopathy induces geometric alteration of the ventricular cavity, which changes from a natural elliptical (conical) to a spherical shape. Ventricular chamber dilatation and spherical deformation are important causes of morbidity and mortality among patients with congestive heart failure. In addition, diastolic dy…
Gold nanoparticles are receiving considerable attention due to their novel properties and the potential variety of their uses. Long gold nanorods with dimensions of approximately 20 × 400 nm exhibit strong light scattering and can be easily observed under dark-field microscopy. Here we describe the use of this light-s…
In the vibrant field of optogenetics, optics and genetic targeting are combined to commandeer cellular functions, such as the neuronal action potential, by optically stimulating light-sensitive ion channels expressed in the cell membrane. One broadly applicable manifestation of this approach are covalently attached ph…
Cadmium tin oxide thin (Cd2SnO4 ) films prepared by thermal evaporation technique at room temperature. The film deposited with thicknesses of 400 nm, then annealed at different annealing temperatures (350, 400, and 450 K). X-ray diffraction analysis of thin Cd2SnO4 films showed cubic polycrystalline structure. The sur…
Quantum dots are semiconductor nanoparticles with unique, size-tunable optical properties. Owing to these properties, these nanoparticles are fast emerging as versatile and multimodal agents in diagnostic imaging and drug delivery applications. In the past decade, their interaction with various biological models, rang…
The variation tendency of magnetic core loss under different duty cycles is studied for high-frequency transformer.With same frequency and flux swings,the excitation current waveform change caused by duty cycle variation has little effect on the area encircled by the hysteresis curve and the hysteresis loss is taken a…
Nano-cellulose was prepared by the hydrolysis of the alkali pretreated reed pulp with 55 %(by mass fraction) sulfuric acid.The effects of reaction time,reaction temperature and alkali treatment time on yield and the mean size of nano-cellulose were studied.The optimizing preparation condition for single factor test is…
A wear resistant aluminum-bronze alloy Cu-12Al-X was prepared by adding some elements(Ni, Fe, Mn) based on the Cu-Al alloy, then was produced by casting. Wear-friction behavior of aluminum bronze Cu-12Al-X was studied with making use of SEM, UMT-2 friction and wear tester, and use ZCuAl10Fe3 alloy as the contrast mate…
Insulator icing flashover is one of threats to safe operation of transmission lines.Thus,by the up-and-down method,we proposed a new approach and its procedure for obtaining the 50% icing flashover voltage of AC insulator string.Test was carried out in the artificial climate chamber(34 m high,with its diameter of 22 m…
In order to discover and develop the new natural products-based acaricidal agents,fifteen curcumin isoxazole and pyrazole derivatives were designed and synthesized,which based on the results of previous study.All structures of the title compounds were confirmed by IR,1H NMR and MS.The acaricidal assay results showed t…
The main component of ultra high frequency(UHF) signal induced by the partial discharge(PD) in GIS is the high order mode. The cutoff frequency of the high order modal of the electromagnetic(EM) wave depends on the diameters of the inner conductor and enclosure of GIS, hence the structure size of GIS greatly impacts t…
The initial oxidation behavior of nitride layer(U2N3+x) on uranium metal was investigated by in-situ X-ray photoelectron spectroscopy(XPS) and Auger electron spectroscopy(AES) in oxygen atmosphere at room temperature.AES differential spectrum of uranium and U 4f,N 1s,O 1s spectra all show that UNxOy is formed during t…
Copper cladding aluminum(CCA) rods with the section dimensions of 50 mm×30 mm and the sheath thickness of 3 mm were fabricated by horizontal core-filling continuous casting(HCFC) technology,and the bonding strength,micro-morphology and composition distribution of the casting rod interface were characterized by tensile…
The explosion energy of RDX-based explosive containing hydrogen storage alloy was studied by underwater explosion and air blast in comparison with that of aluminum-containing explosive. It was found that the hydrogen storage alloy-containing explosive with appropriate ingredient had higher underwater explosion energy…
A novel Ru/NiAlHf coating was deposited onto an Ni-based single crystal superalloy N5 by electron beam-physical vapor deposition(EB-PVD) of Ru and NiAlHf layer.The cyclic oxidation and interdiffusion of the Ru/NiAlHf coating at 1 100 ℃ was investigated by X-ray diffraction(XRD)and scanning electron micrograph(SEM) equ…
An experimental device for testing rheological property of foamy oils was developed based on the experimental system for testing rheological properties of conventional oils.This experimental device can achieve measurements on rheological properties of foamy oils and dynamic observation of foamy-oil microstructures und…
A method was presented to estimate the 3D effective elastic modulus of multidirectional filament-wound tube.The effective elastic modulus of glass fibre wound tube was calculated.The finite element analysis and tensile test results show that effective elastic modulus based on the present method are accurate.The method…
The galvanic corrosion behavior of continuous casting copper-clad steel-and electroplating copper-clad steel-bars with unclad two-end faces was investigated by galvaric corrosion test and a laboratory embedmant test in Dagang soil.Then macro-and micro-corrosion morphology was observed by optical microscopy and SEM.The…