Synthesis and characterization of a novel Mg/In layered double hydroxide
A new brucite-like Mg/In layered double hydroxide of composition [Mg 0.725 In 0.275 (OH) 2 ][CO 3 ] 0.137 ·0.70H 2 O has been studied.
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Net-Shaping of Co-Cr-Mo (F-75) via Metal Injection Molding
Metal injection molding (MIM) is a recognized processing route for net- and near-net-shape complex parts for use in medical, automotive, industrial, and consumer industries. The MIM process holds great potential for cost reduction of orthopaedic implant devices for applications such as femoral components, tibial bases…
Methanetricarboxylates as key reagents for the simple preparation of heteroarylcarboxamides with potential biological activity. Part 2. Reaction of methanetricarboxylates with 2‐aminopyridine, 2‐aminopyrimidine, 2‐aminothiazole and 2‐aminobenzothiazole
Abstract The reaction of methanetricarboxylates 1a,b with 2‐aminopyridine, 2‐aminopyrimidine, 2‐aminothiazole as well as 2‐aminobenzothiazole yields corresponding heteroarylcarboxylic acid esters 2a,b , 5 , 8 , 11a,b . These heterocyclic esters were used as a starting material by the reaction with primary amines to ob…
In Situ Formation of Ce-TZP/Ba Hexaaluminate Composites.
Platelike BaMnAl11O19-α particles were grown in a Ce-TZP matrix by the solid-state reaction of Ce-TZP, BaCO3, MnCO3 and α-Al2O3 powders. The addition of Mn was found to be effective in lowering the formation temperature of single-phase barium hexaaluminate (BaMnAl11O19-α) by 400°C. The Ce-TZP/20 mass% BaMnAl11O19-α co…
Improved design of cover plates of power transformers for lower eddy current losses
Due to the heavy current passing through the steel cover plates of power transformers. some areas are subject to serious local overheating. It affects the safety and reliability of the expensive equipment and power delivery.
Radial Variations in Modulus and Hardness in SCS‐6 Silicon Carbide Fibers
The mechanical properties of SCS‐6 SiC fibers were measured as a function of fiber radius using nanoindentation techniques. Hardness and Young's modulus were characterized for the material in all of the major regions of these fibers: the carbon core, the graphitic core coating, the inner SiC sheath, and the outer SiC…
New and little-known Fallacia species (Bacillariophyta) from brackish and marine intertidal sandy sediments in Northwest Europe and North America
Small diatoms belonging to the genus Fallacia often constitute a diverse component of the benthic protist communities of brackish and marine sandy sediments worldwide. However, the systematics of these organisms, and especially the epipsammic representatives, is incompletely known, and this seriously hampers the inter…
A theoretical study of molecular titanium oxide clusters: structure, bonding, vibrations and stability
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…
The nature of field emission from microparticles and the ensuing voltage breakdown
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…
Distribution of adsorbed ammonium pools in two intertidal sedimentary structures, Marennes-Oléron Bay, France
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 Hartree approximation in dynamics of polymeric manifolds in the melt
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…
Interferometric thickness determination of thin metallic films
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…
Shape memory alloy preparation for multiaxial tests and identification of fundamental alloy performance
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…
CAUSTIC LEACHING OF HIGH-LEVEL RADIOACTIVE TANK SLUDGE: A CRITICAL LITERATURE REVIEW
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…
Thermal properties of
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.…
Structural Change Accompanying Crystallization in the Lithium Ion Conductive Li2S-SiS2-Li3PO4 Oxysulfide Glasses.
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…
New Data on the Kaolinite-Potassium Acetate Complex
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…
Experimental verification of waveguide-mode resonant transmission filters
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…
Simulation of transformer PD pulse propagation and monitoring for a 500 kV substation
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…
Prediction of fragment number and size distribution in dynamic fracture
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…