Materials Literature
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Within this study we have calculated the surface fractal dimension (Ds) and the backbone fractal dimensions associated to the local folding (D1) and to the global folding (D2) for two unbiased sets of 50 proteins each, one for monomer and the other for homo- multimer proteins. The mean surface fractal dimension is Ds=…
This report is based on a study carried out by the NEA on decommissioning cost elements, estimation practices and reporting requirements. Its findings indicate that cost methodologies need to be updated continuously.
Abstract Modulations of energy band and polarization field by fluorine ions in fluorine plasma treated AlGaN/GaN heterostructures were revealed by positron annihilation spectroscopy (PAS). It is found that the annihilation probability is mainly governed by the electric field in the AlGaN/GaN heterostructure, which cou…
'Unexpected' proton spin-lattice relaxation (T(1)) times are reported for the solutions of poly(ethylene-co-1-octene) and tetrachloroethane-d(2). For the residual protons of the deuterated solvent and the methyl and vinyl protons at the polymer chain ends, their T(1) relaxation times vary significantly with both the p…
Abstract A high‐resolution X‐ray diffraction and X‐ray reflectivity study of the structural properties of AlInN/GaN and AlGaInN/GaN high electron mobility transistor structures deposited by molecular beam epitaxy on metal organic chemical vapor deposition GaN/Al2O3 and GaN/SiC templates is presented. A new AlN/GaN/AlN…
Azidolysis of epoxides followed by reduction of the intermediate azido alcohols constitutes a valuable synthetic tool for the construction of beta-amino alcohols, an important chemical functionality occurring in many biologically active compounds of natural origin. However, depending on conditions under which the azid…
d-Amino acid oxidase (DAO) is an important flavo-enzyme that catalyzes the oxidative deamination of d-amino acids into the corresponding alpha-keto acid, ammonia and H(2)O(2). We identified two amino acid oxidases in the methylotrophic yeast Pichia pastoris: Dao1p, which preferentially uses d-alanine as a substrate, a…
The phase diagram of (Fe(1-x) Mn(x))(3)C has been investigated by means of density-functional theory (DFT) calculations at absolute zero temperature. The atomic distributions of the metal atoms are not random-like as previously proposed but we find three different, ordered regions within the phase range. The key role…
Hexagonal $R$-type ferrites $(\text{Ba},\text{Sr}){M}_{2\ifmmode\pm\else\textpm\fi{}x}{T}_{4\ensuremath{\mp}x}{\text{O}}_{11}$ ($M=\text{Fe},\text{Co}$; $T=\text{Ru},\text{Ti}$) were studied via neutron and x-ray diffraction, magnetization, and electrical transport measurements. Magnetization data for single-crystal $…
Within the framework of the classical over-barrier model, energy loss, electron emission, and x-ray emission of slow highly charged ion Ar${}^{q+}$ grazing on the Al(111) single-crystal surface under various azimuthal angles have been studied. The enhancement of energy loss, potential electron emission yields, intensi…
We have investigated the effect of Cd substitution on the archetypal heavy fermion antiferromagnet ${\text{CeIn}}_{3}$ via magnetic susceptibility, specific-heat, and resistivity measurements. The suppression of the Neel temperature, ${T}_{N}$, with Cd doping is more pronounced than with Sn. Nevertheless, a doping-ind…
A permeability model based on the three-dimensional shape demagnetization effect is developed to estimate the permeability of any uniaxially-anisotropic ferromagnetic thin-film for integrated micromagnetic structures. The model is validated by comparison to measured ferromagnetic thin films (NiFe and CoPRe) with diffe…
The pressure dependence of the optical absorption edge of InN is investigated. Owing to the strong nonparabolicity of the energy bands, wurtzite InN exhibits enhanced optical absorption well above the absorption edge. The direct band gap of wurtzite InN increases linearly with pressure at 29±1 meV/GPa. The wurtzite-to…
A series of benzoic acid derivatives 1-10 have been synthesised by two different methods. Compounds 1-6 were synthesised by a facile procedure for esterification using N,N'-dicyclohexylcarbodiimide (DCC) as a coupling agent, methylene chloride as a solvent system and dimethylaminopyridine (DMAP). While 7-10 were synth…
Our goal is to estimate the validity of the product rule by computing the effective permittivity and magnetic permeability of magnetoplasmonic core-shell (CS) nanostructures. We discuss the departure of the simulation from the quasistatic mean-field product rule when calculated close from resonance. The corrections to…
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Photo‒fabrication of surface‒wrinkled hybrid organic‒inorganic composite films containing TiO2 nanoparticles stabilized with CTA+ and PVP allows the preparation of tunable hierarchical structures with environmentally responsive properties. With changes in relative humidity, the film swells by absorbing water and smoot…
A model for metal spherical particle formation is proposed, guided by optical kinetic data of monodisperse metal colloid synthesis. The dynamic optical response of these systems is characterized by broad bands, making their analysis difficult to interpret in terms of particles sizes. To overcome this problem, the data…
The multilevel stepped-wall and rectangular observation chambers are designed to study the multipoint ignition process and the combustion stability control mechanism of the bulk-loaded liquid propellant gun. The expansion process and interaction of high-speed twin combustion-gas jets in liquid are studied by means of…
The coordination polymer {[Cu 3 (hbpdc)(OH) 2 (H 2 O)]·2H 2 O} n ( 1, hbpdc = 3,3′-dihydroxy-2,2′-bipyridine-6,6′-dicarboxylic anion) was prepared under hydrothermal conditions. Single-crystal X-ray diffraction revealed that complex 1 features a highly ordered 3D nanoporous structure encapsulating a zigzag water chain…