Materials Literature
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Copper(II), Crystal structure, 1,2,4-Triazole, Fluorescence, MagnetismThe coordination complexes of 1,2,4-triazoles possess agreat diversity of structures, which is connected to the di- ortrinucleating properties of the neutral and anionic triazolering. Substituted 1,2,4-triazoles have attracted great andgrowing inter…
Herein, we address a need in the industrial and academic communities to reduce costs and environmental impact associated with the synthesis of select carbonaceous nanomaterials. In this effort, we have developed a method to recover Sc 2 O 3 from carbonaceous “waste soot”, thereby alleviating the problem of waste dispo…
This study enlightens how the magnetic anisotropy might be tailored in magnetic films by the proper choice of the substrate. Single crystalline (111)SmAl2 films have been grown by molecular beam epitaxy on two substrates: (112¯0)Al2O3 and (111)CaF2. Hysteresis loops measured along the different crystallographic direct…
A close study is made of the static structure factor for graphene in a magnetic field at integer filling factors $\ensuremath{\nu}$, with focus on revealing possible signatures of ``relativistic'' quantum field theory in the low-energy physics of graphene. It is pointed out, in particular, that for graphene even the v…
A new material [Ni2(BODC)2(TED)], (BODC=4,4′-bicyclo[2.2.2]octane dicarboxylate and TED=triethylene-4,4′-diamine), which is a guest-free, porous metal-organic coordination network, has been successfully synthesized. The crystal structure of this compound is tetragonal with the space group P4∕mmm. It is a three-dimensi…
Abstract Photonic crystals made of high‐permittivity ferroelectric materials exhibit a resonant magnetic response in the microwaves range, leading to a effective permeability of a few tens or a negative relative effective permeability due to the enhancement of zeroth‐order Mie resonances. This effective permeability d…
The theory of the premelting phenomena in ionic crystals has been developed on the basis of the concept of heterophase fluctuation in the vicinity of their melting points. The size of the liquid-like clusters is estimated by the theory using the experimental specific heat value. Molecular dynamics simulations are also…
Recently, mass production and extensive use of novel engineered nanomaterials (e.g., carbon nanotubes, fullerene, nano-TiO2, nano-Au and quantum dots) raise increasing concerns about their potential harmful effects on our environment and human health.Therefore, for better under standing of their environmental and biol…
Abstract In this paper the stagnation phenomenon occurred in the coat‐hanger die is investigated using a three‐dimensional finite element method to simulate the polymer fluid flow in the die. The stagnation zone is defined to evaluate the degree of the stagnation. The effects of the inlet flow rate, the slot gap, the…
The advance of Parkinson's disease has been suspected to be an outcome of oxidative stresses related to the metabolism of dopamine. Several recent studies have tested whether deprenyl (selegiline) or alpha-tocopherol (vitamin E) might attenuate the progression of Parkinson's disease. Although preliminary results of an…
The interaction of oxygen with alkalis (Na, K) on Ni(111) was studied by high-resolution electron energy loss spectroscopy. Loss measurements revealed for the first time a softening of the O-Ni bond and, simultaneously, a strengthening of the alkali-Ni bond in the alkali+O coadsorbed phase, in perfect agreement with r…
We consider liquid-liquid phase transitions as an indication of the local structure of condensed substances and investigate their statistics and thermodynamics. In this area there are two analytical approaches which describe the transitions: the first is purely phenomenological, while the second deals with intermolecu…
Abstract Manipulation of the adhesion of copper on carbon is crucial for the production of copper‐carbon composites as potential high‐performance heat sinks in electronic devices. A thin 100‐nm sputter‐deposited molybdenum (Mo) interlayer between copper and carbon increases adhesion significantly after thermal treatme…
Digital x-ray radiographic systems are desirable as they offer high quality images which can be processed, transferred, and stored without secondary steps. However, current clinical systems are extraordinarily expensive in comparison to film-based systems. Thus, there is a need for an economical digital imaging system…
Abstract The variable angle spectroscopic ellipsometry and spectroscopic reflectometry is used for the optical characterization of the as‐deposited and annealed Ge2Sb2Te5 (GST) films. The dispersion model of the GST films is based on the parameterization of the density of electronic states. As a consequence of anneali…
A new method is proposed to quantify the local dislocation spacings on sections displaying the intersections of dislocation lines. The method was applied to dislocation structures in single crystals of CaF 2 introduced by deformation at elevated temperature and made visible by etch pits. The method yields the frequenc…
A hydroxymethylated resorcinol (HMR) was used as a coupling agent to improve glueability of silicone (aminofunctional polydimethylsiloxane) modified pine sapwood (Pinus sylvestris) with polyvinyl acetate (PVAc). Priming with HMR did not significantly increase tensile shear strength of unmodified and silicone treated w…
Abstract The influence of residual peroxide on the degradation of ethylene–propylene–diene rubber (EPDM) and detection methods for undercrosslinking were investigated. The undercrosslinking of peroxide‐crosslinked EPDM could be detected by the measurement of the heat generated by the crosslinking reaction due to resid…
We report the synthesis of new alloys of composition $R{\mathrm{Cu}}_{4}\mathrm{Mn}$ for $R=\mathrm{La}$, Ce, Pr, Nd, Sm, and Gd. The ternary compounds are found to crystallize in the hexagonal $\mathrm{Ca}{\mathrm{Cu}}_{5}$-type structure of the $R{\mathrm{Cu}}_{5}$ parent compounds, but for the Gd compound, this pro…
OBJECTIVE: Aortic valve cusp extension and free-hand aortic valve replacement with autologous pericardium has been described. The long-term results were shown to be comparable with commercially available aortic bioprostheses. Nevertheless the relatively demanding surgical technique could not find wide acceptance. We d…