Materials Literature
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This paper addresses the question as to whether the core structure of screw dislocations in Mo in the bulk can be obtained from high-resolution electron microscopy (HREM) images of such dislocations viewed end-on in a thin foil. Atomistic simulations of the core structure of screw dislocations in elastically anisotrop…
We report a detailed investigation of GdO${}_{1\ensuremath{-}x}$F${}_{x}$FeAs ($x=0$, $0.07$, and $0.14$) samples by means of high-field and high-frequency electron spin resonance (HF-ESR) together with measurements of thermodynamic and transport properties. The parent GdOFeAs compound exhibits Fe long-range magnetic…
A mere six years ago Otto Mountain was completely unknown to the mineralogical world. That changed on 2 January 2004 when one of the authors (RMH) found some small bright green crystals associated ...
Vesicles prepared from a mixture of (Sar)(25)-b-(L-Leu-Aib)(6) (SLL) and (Sar)(25)-b-(D-Leu-Aib)(6) (SDL) fused with themselves upon heating to 90 °C. The vesicles also fused with (Sar)(28)-b-(L-Leu-Aib)(8) vesicles upon heating to 90 °C. The temperature-triggered fusion was due to the phase transition of the mixed me…
Nanohole films or antidot arrays of Permalloy have been prepared by the sputtering of Ni80Fe20 onto anodic alumina membrane templates. The film thickness varies from 5 to 47 nm and the antidot diameters go from 42 to 61 nm, for a hexagonal lattice parameter of 105 nm. For the thinner antidot films (5 and 10 nm thick),…
The direct use of sulfur-containing coke to generate electricity has been studied by a transient approach that involves feeding a batch of coke samples to a Ni−yttria-stabilized zirconia (YSZ) anode solid oxide fuel cell operating at 750 °C in flowing He, measuring the fuel cell performance, and monitoring the concent…
Abstract Triggered release of an entrapped dye from vesicles embedded in a polyelectrolyte multilayer (PEM), as a consequence of the electrochemically induced local pH change in the vicinity of the electrode, is reported. The PEM was deposited on an indium tin oxide (ITO) electrode wherein lipid vesicles filled with a…
Due to its large piezoelectric and electrostrictive responses to an applied electric field the (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:math>)Pb(Mg 1/3 Nb 2/3 )O 3 –<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mn>x</mml:mn></…
A modular dendrimer-based drug delivery platform was designed to improve upon existing limitations in single dendrimer systems. Using this modular strategy, a biologically active platform containing receptor mediated targeting and fluorescence imaging modules was synthesized by coupling a folic acid (FA) conjugated de…
A stimuli-responsive controlled-release delivery system based on carbon nanotubes is demonstrated. Through TEM, FTIR spectroscopic, and thermogravimetric analysis, functional groups have been successfully attached to the open ends of the tubes, thereby enabling functionalized silica spheres to preferentially attach to…
In this paper, we investigate the effects of the band shifts induced by the interband spin-fluctuation coupling on the optical sum rule in pnictides. We show that, despite the shrinking of the Fermi surfaces with respect to first-principles calculations, the charge-carrier concentration in each band is almost unchange…
The cathodoluminescence spectra between 300 and 900 nm were investigated for undoped and Nb 2 O 5 ‐doped SrTiO 3 sintered both in air and under low oxygen partial pressure ( ). Two broadened emission peaks observed experimentally were deconvoluted into five luminescences in the visible range of 2.9 eV (427 nm) to 2.4…
High spatial density ZnO nanopillars (NPs) have been fabricated on catalyst- and pattern-free Si wafers using atmospheric pressure metal organic chemical vapor deposition (APMOCVD) at a moderate temperature (500 °C). The nanopillar diameter is ∼ 35 nm and the length is ∼ 150 nm, with a density of ∼ 2 × 10(9) cm( - 2).…
A simple route for tailoring emissions in the visible wavelength region by chemically coupling quantum dots composed of ZnSe and CdS is reported. Coupled quantum dots offer a novel route for tuning electronic transitions via band-offset engineering at the material interface. This novel class of asymmetric-coupled quan…
Experimental results concerning continuous isohydrical drowning-out mass crystallization of vitamin C in an l (+)-ascorbic acid−ethanol−water system are presented. The process environment was created in a laboratory-scale draft tube, mixed suspension mixed product removal (DT MSMPR) crystallizer with internal circulat…
Abstract Novel radiopaque iodinated poly(ether urethane) (IPEU) was prepared by using iodine‐containing diol as chain extender in a normal two‐step condensation polymerization process. This new iodine‐containing diol was synthesized by iodination of terephthalic acid and then reaction with 3‐aminopropanol. The chemica…
We have recently reported a binaphthyl liquid crystal exhibiting on cooling a cubic blue phase over a wide temperature range. On heating, however, a chiral nematic phase appeared in place of the blue phase. To elucidate the origin of blue phase stabilisation we have prepared a homologous series of binaphthyl derivativ…
We present a phase field model which approximates a one-phase Stefan-like problem with a kinetic condition at the moving boundary, and which models a dissolution and precipitation reaction. The concentration of dissolved particles is variable on one side of the free boundary and jumps across the free boundary to a fix…
Recently discovered stable monoatomic carbon sheet (graphene) which is comprised of field-effect structures has remarkable physical properties promising nanoelectronic applications (Novoselov, 2004).Practical semiconductor device simulation is essentially based on diffusion-drift approximation (Sze & Ng, 2007).This ap…
Nowadays the enormous use of polymer materials is attributed to their extraordinary combination of properties, low weight and ease of processing. However for improvement of some properties such as thermal and mechanical stability, large numbers of additives were added to polymeric matrix and formed polymer matrix comp…