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。
First principles quantum chemical calculations at the HF, MP2 and B3LYP levels of theory, using the LANL2DZ basis set, were used to explore the potential energy hypersurfaces (PESs) of ionic titanium(IV) oxide clusters of molecular dimensions, formulated as TiO32-, Ti2O32+, Ti2O52- and Ti2O64-. The neutral protonated…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Hasan Padamsee, Jens Knobloch; The nature of field emission from microparticles and the ensuing v…
The l-step and multiple-step KC1 extraction technique was used to evaluate quantitatively the distribution of adsorbed NH,+ in the 0-5 cm strata of 2 intertidal muddy structures from Marennes-Oleron Bay. France. KC1 extraction efficiency was highel-in the reconstituted sediment slurries and decreased significantly in…
The Martin–Siggia–Rose functional integral technique is applied to the dynamics of a D-dimensional manifold in a melt of similar manifolds. The integration over the collective variables of the melt can be simply implemented in the framework of the dynamical random phase approximation. The resulting effective action fu…
The deposition of thin metallic films on substrates is a common procedure, with a great number of different techniques, for a variety of practical and scientific applications. One of the most important properties to adjust is the thickness of the film. In special applications like MBE, this is made up in situ and duri…
TiNi SHAPE MEMORY alloy preparation for the multiaxial tests was explained. Stable response of the alloy was realized, not by training but by an effective combination of the alloying technique and the heat treatment: Ti-51.0at%Ni polycrystalline shape memory alloy heat-treated by annealing at 673 K for 3.6 ks followed…
The Department of Energy (DOE) must treat and safely dispose of its radioactive tank contents, which can be separated into high-level waste (HLW) and low-level waste (LLW) fractions. Since the unit costs of treatment and disposal are much higher for HLW than for LLW, technologies to reduce the amount of HLW are being…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation P. M. Nikolić, Z. Djinović, D. M. Todorović, V. Jović, Z. Djurić, A. I. Bojičić, D. Urošević, V.…
The structural change of the (100-x) (0.6Li2S⋅0.4SiS2)⋅xLi3PO4 oxysulfide glasses during crystallization was analyzed by means of solid-state nuclear magnetic resonance (NMR) and X-ray photoelectron spectroscopy (XPS). The unique tetrahedral units of SiOnS4-n (n=1, 2, 3) and POnS4-n (n=1, 2, 3) present in the glass sa…
The intercalation complex of kaolinite and potassium acetate (KAc) was studied by HTXRD, IR spectroscopy and DTA-TG. The HTXRD patterns indicate that the 14.06 Aa basal spacing of the complex contracts to 11.77 Aa and 9.35 Aafter heating at 60 degrees C. The DTA-TG data indicate that water is present in these new comp…
A guided-mode resonance transmission filter is demonstrated experimentally. A five-layer fiberglass/air structure with a waveguide-grating in the center layer is designed, fabricated, and tested. A close match between theoretical and experimental spectral characteristics is found over the spectral range of 4-20 GHz. G…
This paper discusses the development of a simulation model to study the propagation of partial discharge (PD) pulses of transformers in a 500 kV substation. The results will be used to design an on-line PD monitoring system for transformers. The impedance matrix of a 500 kV, single-phase transformer is computed based…
The present study is focused on predicting fragment number and size distribution in dynamic fragmentation processes. Because of the unloading effect of release waves arising from fracture nucleations, we consider there to be a minimum value for fragment size. Combined with the assumption that the sites of fracture nuc…
An experimental study on microscopic scale measurements of thermal expansion and temperature by using the Scanning Joule Expansion Microscope (SJEM) based on the Atomic Force Microscope (AFM) was conducted. While the AFM is scanning on the sample heated by AC current, topographical and thermal expansion images are mea…
The objective of the present research is to utilise the advantages offered by renewable resources for the development of biodegradable composite materials. Two types of biocomposites using flax fibres as a reinforcement and poly[(R)-3-hydroxyalkanoates] (PHA) as a biodegradable polymer matrix were manufactured: First,…
A series of gold(I) complexes containing aminoxyl radical-substituted phosphine ligands has been prepared. Complexes chloro{2-[(p-diphenylphosphino)phenyl]-4,4,5,5-tetramethylimidazoline 1-oxyl 3-oxide}gold and [tert-butyl(p-diphenylphosphinophenyl)aminoxyl]chlorogold were prepared by reaction of the free radical phos…
Several Ni-containing perovskite-related oxides of stoichiometries RNiO3 (R=La, Pr, Eu), La1-xAxNiO3 (A=Sr, Th), LaNiO2.5, BaNiO2 and BaNiO3 were studied as catalysts for hydrogen peroxide decomposition. In all cases the samples were single-phase materials characterized structurally by X-ray and neutron power diffract…
A humidity sensing device, named a moisture sensitive field effect transistor (HUMIFET) has been fabricated on an n-type Si wafer using conventional VLSI technology. A series of sensors, each having area approximately 3.0 mm2 have been designed on a single Si wafer. The FET device is an n-channel MISFET with a duplex…
After stating the reasons leading to EDF's interest in 420 kV GIL and the technical and economic imperatives to be considered, the principles adopted for the insulation co-ordination of 420 kV GIL up to a few tens of kilometers long are described. All the insulation coordination approach is based on the global failure…
Wide-band absorbing characteristics in the GHz-range are identified in the ferrite-rubber composite sheets with the periodic structure of an air cavity. Co/sub 2/Z and Ni-Zn ferrites, which have been prepared by ceramic processing, are used as the absorbent fillers. On the basis of a synthesized capacitance and induct…