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。
Abstract We have found that polarity of epitaxial InN layers has been controlled by choice of a capping material during high‐temperature annealing of yttria‐stabilized zirconia (YSZ) (111) substrates in air. Angle‐resolved X‐ray photoelectron spectroscopy has revealed that the amount of segregation of Y atoms to the Y…
This paper reports on high-quality InN materials prepared on a GaN template using radio-frequency metalorganic molecular beam epitaxy. We also discuss the structural and electro-optical properties of InN nanorods/films. The X-ray diffraction peaks of InN(0002) and InN(0004) were identified from their spectra, indicati…
A reconfigurable 1×2 wavelength selective switch, based on a Lyot filter and high birefringence nematic liquid crystals, is proposed. Simulations and experimental results of a reconfigurable switch are reported. Insertion losses from 3.4 dB and rejection ratios up to 15 dB are obtained in a two input channel system at…
Bridged ZnO nanorod arrays on a V-grooved Si(100) substrate were used as the photoanode of a photoelectrochemical (PEC) cell for water splitting. Photolithography followed by reactive ion etching was employed to create a V-grooved structure on a Si substrate. ZnO nanorod arrays were grown via a hydrothermal method. Th…
Abstract Density functional calculations have been performed to rationalize the oxidation of carbon monoxide by [Cp2Mo(OH)(OH2)]+ (Cp = η5‐C5H5) to give carbon dioxide and [Cp2MoH(CO)]+. Our results show that the intramolecular nucleophilic mechanism is the most favored both in the gas phase and in water solution, whi…
The magnetoelectric (ME) properties of Tb0.3Dy0.7Fe1.92(Terfenol-D)/PbZr0.3Ti0.7O3(PZT) thin films grown on a Pt(111)/Ti/SiO2/Si(100) substrate were investigated. The ferroelectric behavior of a Terfenol-D/PZT bilayer film stack was examined by polarization–electric field hysteresis measurement. The remnant polarizati…
We report experiments on lateral migration of bubbles in a two-dimensional foam sheared in a narrow-gap Couette device. A larger bubble in an otherwise monodisperse bubble raft migrates toward the center of the gap as long as the bubble size ratio and the shear rate are each above a threshold. The migration speed is r…
The adsorption site and vibrational energies of CO on a clean Ag(001) surface were determined using scanning tunneling microscopy, inelastic electron tunneling spectroscopy with a scanning tunneling microscope, and high-resolution electron energy loss spectroscopy. The CO molecules were found to adsorb on the atop sit…
A new aromatic dicarboxylic acid monomer 4-pyridylformylimino-N-(phenyl,2′,5′ – dicarboxylic acid) (PPDC) containing pyridine and azomethine units was synthesized through a simple one-step condensation reaction between 2-aminoterephthalic acid and 4-pyridinecarboxaldehyde. A series of new polyamides was prepared throu…
The mechanical properties in a weld zone are different from those in the base material owing to their different microstructures. A process heat exchanger in a nuclear hydrogen system is a key component to transfer high heat generated in a very high-temperature reactor to a chemical reaction that yields a large quantit…
A linear increase in the size of ethylene-propylene rubber particles with its content in polypropylene matrix at steady mixing in a batch mixer was observed. This type of the dependence is predicted by the theory of dynamic equilibrium between the droplet breakup and coalescence. However, theoretical calculation of dr…
Tests and numerical analysis were conducted to evaluate the flexural deformation and strength of laminated carbon fiber-reinforced plastic under high temperature conditions. First, a series of four-point bending tests in various temperature conditions was conducted, and the results indicated a remarkable temperature e…
Poly(methyl methacrylate) (PMMA) nanocomposites based on sepiolite modified with trimethyl hydrogenated tallow amine by an adsorption process were prepared by melt compounding using a corotating twin screw extruder. The morphology and dispersion of sepiolite in the PMMA were characterized by X-ray diffraction (XRD) an…
Monocrystalline m -plane ZnO epitaxial films with flat surface morphology were grown on m -plane sapphire by using atomic layer deposition. X-ray diffraction and transmission electron microscopy measurements verify not only the in-plane epitaxial relationship of the as-grown films as (101̅0)⟨0001⟩ ZnO ||(101̅0)⟨1̅21̅0…
Spatially resolved measurements of the density of metastable excited atoms in the plume of an argon microplasma are presented. The microplasma device is operated at a relatively low pressure, on the order of 1 Torr, and is exhausted into a vacuum. Line-integrated densities of excited argon neutrals in the exhaust plum…
Modified corn starch (MCS) was used for the study. The cement that was used is ordinary Portland cement 42.5 N, CEM 1. Andesite stones with maximum size 19 mm were used as coarse aggregates while crusher stone dust of specific gravity of 2.88 was used as the fine aggregates.
The measured isotopic compositions of fuel samples taken from high-burnup spent PWR MOX and UO2 assemblies in the MALIBU program has been analyzed by lattice physics codes. The measured isotopes were U, Np, Pu, Am, and Cm isotopes and about 30 major fission product nuclides. The codes used in the present study were a…
A methodology for the prediction of excitation energies for substituted chromophores on the basis of ground state structures has been developed. The formalism introduces the concept of "structural substituent excitation energy effect" for the rational prediction and quantification of the substituent effect in the exci…
In recent years, paraffinic fuels have attracted attention because of their potential for reducing diesel exhaust emissions, mainly smoke or particulate matter emissions. One of the paraffinic fuels, a Fischer–Tropsch diesel fuel, was selected to demonstrate the lower exhaust emissions while improving fuel economy in…
Abstract This article investigates an important issue in carbonation systems for beverages, i.e., monitoring and optimizing the amount of carbon dioxide concentration in carbonated beverages. The study is grounded on two series of experimental tests performed using a laboratory apparatus that reproduces an industrial…