385 Result(s)
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Article
Structure and Tc of La1−xYbxBa2Cu3O7-y Layered Perovskite Superconductors
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Article
Influence of growth parameters on the microstructure of directionally solidified Bi2Sr2CaCu2Oy
Laser-heated float zone growth was used to study the directional solidification behavior of Bi–Sr–Ca–Cu–O superconductors. The phases that solidify from the melt, their morphology, and their composition are al...
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Article
Interface microstructure and reaction in Gr/Al metal matrix composites
The interface structure in Gr/Al composites fabricated with liquid metal infiltration has been studied using transmission electron microscopy (TEM). Morphologies of interfacial reaction product, aluminium carb...
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Article
Electrode Materials for Ferroelectric Capacitors: Properties of Reactive DC Sputtered IrO2 Thin Films
Due to its low resistivity and excellent thermal stability, IrO2 has attracted attention as an alternative for electrode material in ferroelectric integrated circuit applications. In this work, IrO2 films deposit...
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Article
Polarization Relaxation in PZT/PLZT Thin Film Capacitors
Polarization relaxation in PZT and PLZT (with La concentration from 0% to 10%) thin film capacitors was characterized in the time range from 10 ns to 1000 s. It was found that at zero volt the polarization in ...
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Article
Subsolidus phase equilibria of coexisting high-Tc Pb-2223 and 2212 superconductors in the (Bi, Pb)–Sr–Ca–Cu–O system under 7.5% O2
The subsolidus phase relationships of the high-Tc 2223 superconductor in the (Bi, Pb)–Sr–Ca–Cu–O (BSCCO) system have been examined at 810–820 °C. All experiments were carried out at ambient pressure in a 7.5% O2 ...
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Article
Synthesis of novel diporphyrins
The novel diporphyrin ligands in which the two porphyrin ring units attached via a rigid aromatic linker were prepared. Their structures have been identified by IR, UV-visible,1H NMR spectra and elemental analysi...
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Article
Synthesis of novel polymer-bonded water-soluble metal porphyrins
The reaction of 5, 10, 15, 20-tetra-(4-pyridyl) porphyrin 1 with triruthenium dodecacarbonyl [Ru3(CO)12], zinc(II) acetate, copper(II) acetate, cobalt(II) acetate afforded complexes 2a−2d respectively. Treatment ...
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Article
Low Loss Ferroelectric Films Grown on Polycrystalline Ferrite Substrates for Dual-Tuning Microwave Devices
We successfully deposited high quality biaxially oriented BaxSr1-xTiO3 thin films on polycrystalline yttrium iron garnet substrates using both the metal-organic chemical liquid deposition and pulsed laser deposit...
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Article
Correlation between the standard formation enthalpy and the path index of pyridine-derivatives
A formulated as △fH m ◯ (PPDs,g)=a+ΣbiPi + cifi is put forward for estimating standard formation entha...
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Article
Effects of preparation processes on structure and magnetic properties of Nd2Fe14B/α–Fe-type nanocomposite magnets
The structure and magnetic properties of Nd8.4Fe86Mo1.1B4.5 nanostructured magnets prepared by mechanical alloying (MA), compared with those by mechanical milling (MM), were studied. The intrinsic coercivity μ0H
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Article
Inferring requirement goals from model implemented in UML
UML is used widely in many software development processes. However, it does not make explicit requirement goals. Here is a method tending to establish the semantic relationship between requirements goals and U...
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Article
Organic thin film electroluminescent passive matrix display
Long life green-emitting matrix display based on organic light-emitting diode is reported. The pixel number is 96×60, equivalent pixel size 0.4×0.4 mm2, and the pixel gap 0.1 mm. An image with no crosstalk betwee...
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Article
Porous spherical cellulose composites coated by aluminum (III) oxide and silicone: Preparation, characterization and adsorption behavior
Porous spherical cellulose composite (PSCA) coated by aluminum (III) oxide was prepared and modified by organosilicone. SEM images of the surface morphology of the bead cellulose shows that it has spherical sh...
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Article
Catalytic decomposition of methylene chloride by sulfated titania catalysts
Catalytic decomposition of methylene chloride in air below 300°C was studied. Sulfated titania was very effective in converting 959 ppm methylene chloride selectively to CO, CO2 and HCl. Complete decomposition of...
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Article
Preparation and properties of novel aerodynamic pressure-sensitive paint via the sol-gel method
A novel aerodynamic pressure-sensitive paint (PSP) was prepared by using the sol-gel process for measuring the pressure distribution variation on an aerodynamic surface with an oxygen-containing gas flow. In t...
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Article
Random boundary simulation of pum** groundwater on two-layer soft soil structure with porous media
Based on random theory, fluid dynamics, porous media and soil mechanics, the porosity and random characteristic of the two-layer soft soil in Wuhan region were studied in this paper. The random seepage coeffic...
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Article
Simultaneous determination of trace rare earth elements and other elements in high purity terbium oxide (Tb4O7) by ICP-AES after HPLC separation using P507 resin
This article describes a new method for the simultaneous determination of trace rare earth elements (REEs) and non rare earth elements (NREEs) in high purity terbium oxide by ICP-AES after HPLC separation usin...
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Article
A stable blue organic electroluminescent material
In order to compare two kinds of blue electroluminescent materials, we have investigated two kinds of blue OLEDs with the similar structrue ITO/CuPc/NPB/JBEM: perylene/Alq/Mg:Ag [device(J)] and ITO/CuPc/NPB/DP...
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Article
A new distyrylarylene derivative used as blue light emitter in organic electroluminescent device
A new blue electroluminescent material, distyrylarylene(DSA) derivative, 4,4’-bis[2,2-(1-naphthyl, phenyl)vinyl]-1,1′-biphenyl(NPVBi) is designed and synthesized. The DSA derivative shows better thermal stabil...
