Materials Literature
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The properties of green thermoluminescence (TL) and persistent luminescence of Lu 2 O 3:Tb 3+ and Lu 2 O 3:Tb 3+,Ca 2+ materials sintered in vacuum at 1700 °C were investigated. The concentration of Tb varied in the range 0.1–3 mol %, and the Ca content was 1 mol %. Ca 2+ codoping enhanced the room temperature persist…
A Russian doll: A heterometallic 108-metal cluster featuring an unprecedented four-shell, nesting doll-like structure (see picture) and overall antiferromagnetic coupling is reported.
Effective mesoporous nanocrystalline C-doped TiO(2) photocatalysts were synthesized through a direct solution-phase carbonization using titanium tetrachloride and diethanolamine as precursors. X-ray photoelectron spectroscopy (XPS) results revealed that oxygen sites in the TiO(2) lattice were substituted by carbon ato…
Preface to the Second Edition. Preface to the First Edition. 1. The Concept of Microstructure. 1.1. Microstructural Features. 1.2. Crystallography and Crystal Structure. 2. Diffraction Analysis of Crystal Structure. 2.1. Scattering of Radiation by Crystals. 2.2. Reciprocal Space. 2.3. X-ray Diffraction Methods. 2.4. D…
Robust gold nanorod substrates were fabricated for refractive index sensing based on localized surface plasmon resonance (LSPR). The substrate sensitivity was 170 nm/RIU with a figure of merit of 1.3. To monitor biomolecular interactions, the nanorod surfaces were covered with a self-assembled monolayer and conjugated…
Artificial enzyme mimetics are a current research interest because natural enzymes bear some serious disadvantages, such as their catalytic activity can be easily inhibited and they can be digested by proteases. A very recently study reported by Yan et al. has proven that Fe(3)O(4) magnetic nanoparticles (MNPs) exhibi…
Abstract Toughening behavior of semicrystalline polymers was investigated using syndiotactic polystyrene (sPS)/polyamide 6(PA‐6) blends compatibilized with maleic‐anhydride functionalized poly (styrene‐ b ‐(ethylene‐ co ‐butylene)‐ b ‐styrene) SEBS‐MA triblock copolymer. The effect of interparticle distance and crysta…
Rigorous computer simulations of propagating electromagnetic fields have become an important tool for optical metrology and design of nanostructured optical components. A vectorial finite element method (FEM) is a good choice for an accurate modeling of complicated geometrical features. However, from a numerical point…
Compounds containing lone-pair elements such as Te(IV) are very interesting from the structural point of view, as the lone-pair nonbonding regions create low-dimensional geometrical arrangements. We have synthesized two new compounds with these features-Ba(2)Cu(2)Te(4)O(11)Br(2) (I) and Ba(2)Cu(2)Te(4)O(11-delta)(OH)(…
Abstract The electropolymerization of thiophene in the presence of 1‐(2‐pyrrolyl)‐2‐(2‐thienyl) ethylene (PTE) was investigated. PTE was synthesized via Wittig reaction and by the addition of catalytic amount of PTE during the electropolymerization of thiophene, the conditions of electropolymerization of thiophene wer…
Atomistic molecular dynamics simulations were performed on a low-molecular-weight nitroplasticized Estane® mixture representative of the binder used in PBX-9501. Pressure-volume-temperature (PVT) behavior over a wide range of pressures and temperatures above the order-disorder temperature (ODT) of Estane was determine…
A literature survey reveals that the study of rotational power losses in stator cores has been conventionally performed by means of finite-element analysis. This paper proposes an alternative characterization of rotational power losses in the tooth roots—a region that has been long known as a seat of flux rotation—rel…
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTEffect of Interfacial Curvature on the Miscibility of Laterally Mobile, Mixed Polyelectrolyte and Neutral Polymer Brushes: An SCF Numerical AnalysisKevin N. Witte and You-Yeon Won*View Author Information School of Chemical Engineering, Purdue University, West Lafayette, Indiana…
X-ray resonant magnetic scattering was employed to study a fully reversible spin-flop transition in orthorhombic ${\mathrm{Gd}}_{5}{\mathrm{Ge}}_{4}$ and to elucidate details of the magnetic structure in the spin-flop phase. The orientation of the moments at the three Gd sites flop 90\ifmmode^\circ\else\textdegree\fi{…
The derivation of accurate dynamic average-value models for synchronous machine-rectifier systems is challenging. A recently proposed parametric approach uses a computer-aided procedure for constructing the required averaged models, wherein the key nonlinear functions are extracted from a detailed (valve-by-valve) sim…
Irradiation damage of FeCrCo, AlNiCo, SmCo, and NdFeB permanent magnets was investigated by using γ-ray irradiation. Results of magnetic property measurement show that FeCrCo and NdFeB have more demagnetization than AlNiCo and SmCo. X-ray diffraction analysis shows that γ-ray irradiation leads to the increase of FeCrC…
Abstract The oligomeric poly(styrene‐acrylamide‐vinylbenzylchloride) (P(St‐AM‐VBC)) quaternary ammonium salts have been prepared from the reactions of trimethylamine with the corresponding P(St‐AM‐VBC)s, which were synthesized by free‐radical polymerization of a mixture of styrene, acrylamide, and vinylbenzylchloride.…
An injector-like nanostructure of ZnO fabricated by hydrothermal method was tested for field emission (FE) properties. The turn-on field of 3.8 V/mum was obtained at a current density of 0.1 muA/cm2. Above the turn-on field, the emission current density quickly raised up to 1 mA/cm2at about 12.8 V/mum. The field enhan…
We present a prediction for the formation of surface defects in a thin amorphous silica layer during relaxation of externally imposed stresses and strains, based on extensive ab initio molecular dynamics calculations. Our calculations show that the application of a biaxial compressive stress leads to the creation of e…
This study aims to gain insight into the consequences of local defects in stator winding insulation; therefore, optical (microscopic) inspections and voltage-endurance tests have been carried out on in-service aged generator bars. In this context, generator bars with mica-bitumen insulations and generator bars with mi…