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 effect of a dc on the interdiffusivity D̃ in the Cu–Ni system was investigated over the temperature range of 650–850°C and at current densities in the range of 0–1000Acm−2. Interdiffusivities were calculated using the Sauer–Freise–den Broeder method and the values calculated in the absence of a current were in agr…
Zinc oxide nanoplatelets have been successfully grown on Si(l00) by a catalyst-free Chemical Vapor Deposition (CVD) route starting from a second-generation Zn(II) molecular precursor, Zn(hfa)2?TMEDA (Hhfa=1,1,1,5,5,5-hexafluoro-2,4-pentanedione; TMEDA=N,N,N′,N′-tetramethylethylenediamine). The syntheses were performed…
Self‐repairing function is observed in carbon‐containing refractory such as MgO–C, Al 2 O 3 –C, and so forth. Non‐oxides such as pure metallic, alloys, carbides, and nitrides are intentionally added to the refractory composition to bring about this function. As a basis of the development of a self‐repairing refractory…
We report on a high pressure cell to use with small angle neutron scattering (SANS) in a pressure range up to 500 MPa. The cell offers the new possibility to investigate liquid samples by a specially designed sample chamber, which allows changing of samples relatively easily. Since the cell construction uses sapphire…
Research Article| March 01, 2008 Microbial biomass: A catalyst for CaCO3 precipitation in advection-dominated transport regimes Michael T. Kandianis; Michael T. Kandianis 1Department of Geology, University of Illinois at Urbana-Champaign, 1301 West Green Street, Urbana, Illinois 61801, USA Search for other works by th…
It is demonstrated in this paper that higher focusing resolution will be provided by flat left-handed metamaterial (LHM) lens if compared to convex dielectric lens and elliptical reflector focusing system. High-resolution near-field microwave target detection and imaging with flat LHM lens can be implemented by scanni…
OBJECTIVES: Gadoxetic acid [gadolinium-ethoxybenzyl-diethylenetriamine penta-acetic acid (Gd-EOB-DTPA); Primovist] is a liver specific contrast agent for magnetic resonance imaging. For risk assessment of the single diagnostic use the toxicity of this compound was assessed. MATERIALS AND METHODS: Studies into acute, r…
Development of synthesis methods for anisotropic metal nanoparticles is of considerable interest due to their remarkable optoelectronic properties. Various shapes ranging from rods to cubes to tetrapods and prisms may be obtained by chemical methods. Here we show that anisotropic gold nanoparticles can be synthesized…
The present work studies the incorporation of hydrogen and its bonding configuration in diamond films composed of diamond grains of varying size which were deposited by three different methods: hot filament (HF), microwave (MW), and direct current glow discharge (dc GD) chemical vapor deposition (CVD). The size of dia…
The search for low molecular weight hydrogelators (LMWH) with varying structural motif is getting intense because of its potential application in the field of biomedicines as well as the diversified area of nano-biotechnology. In this paper, we have developed hydrogels of simple cationic dipeptide amphiphiles that hav…
(E,E,E)-1,6-Diaryl(Ar)-1,3,5-hexatrienes (2, Ar = 4-fluorophenyl; 3, Ar = 2,4-difluorophenyl; 4, Ar = 2,4,6-trifluorophenyl; 5, Ar = perfluorophenyl) and (E,E,E)-1-perfluorophenyl-6-phenyl-1,3,5-hexatriene (6) were prepared. The absorption and fluorescence spectra in methylcyclohexane solution showed only a small depe…
Ammonia borane (AB) is of great interest for storing hydrogen, an important issue in the growing field of hydrogen technology. The reaction pathways leading to the thermal decomposition of solid-state AB incorporated in carbon cryogels (CC) have been studied by spectroscopic methods. The time-dependent thermal decompo…
The inclusion populations and the relevant inspection methods are described with a particular emphasis on the SEM-FEG/EDS image analysis system. Then, the efficiency and the limits of the inspection methods are assessed by a new simulation approach.
The corrosion behavior of structural materials in liquid lead alloys like Pb-17Li as a liquid tritium breeder for future fusion reactors and Pb-55Bi (lead-bismuth eutectic [LBE]) as an envisaged spallation target and/or coolant for accelerator-driven systems (ADS) and lead-cooled Gen IV reactors is a key issue in the…
Abstract Single stage hot deformation (SSHD) process is an effective method to fabricate anisotropic magnet. In this study, the influences of particle size and hot press temperature on microstructure were discussed, respectively. Anisotropic magnetic properties are affected by SSHD process conditions through the chang…
This paper has scrutinized, both experimentally and theoretically, the conformation of an olefinic substituent on the pyrrole β-carbon of tetraphenylporphyrin. Compelling evidences collected from linear optical absorption and NOESY 1 H NMR experiment strongly suggest that, in solution, it is highly possible for the ol…
When snow is unevenly distributed on horizontal insulators there is a higher risk for flashover. This was investigated for a 400 kV circuit breaker with horizontal breaking chamber insulators. The highest risk occurs when connecting a line to a generator. For a short moment during the synchronization the voltage can r…
An anhydrite (CaSO 4 )‐rich soil developed over a 70‐cm‐deep water table is mapped in the coastal sabkha (salt flat) of Abu Dhabi Emirate. An anhydrite soil type is unique in occurrence in a wet zone over a water table, although anhydrite in this setting has been reported before. The X‐ray diffraction analysis clearly…
Abstract Iron cations in the octahedral sheet are a disadvantage to the industrial application of palygorskite clays. In this study, a palygorskite sample from eastern China (Mayaoshan deposit, Jiangsu Province) is shown to have an Fe content that is much greater than usual. The structural formula of the Fe-rich palyg…
Excitation of a magnetodielectric plate with the parameters ɛ → −1 and μ → −1 by an elementary electric dipole is considered. The behavior of the wave field is investigated in the case when the values of the constitutive parameters approach the singular point ɛ = μ = −1 along the curve ɛμ = 1. A condition is establish…