Materials Literature
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The primary goal of the extreme-scale plasma turbulence studies described in this article is to gain new insights on confinement scaling in magnetic fusion systems by using powerful, world-class supercomputers to carry out simulations with unprecedented resolution and temporal duration. New insights have been gained o…
Nonlinear dynamic numerical modelling and analysis of concrete panels subjected to blast loads is presented in this paper. Reinforced concrete panels of dimension 1.0 1.0 m and different thicknesses and supported on four sides are subjected to blast loads produced by the detonation of high explosive charges. The model…
The electronic structure and stability in binary and ternary aluminum‐bismuth‐nitrogen nanoclusters up to six atoms are studied using density functional theory (DFT). The lowest energy geometries were obtained by sampling the geometrical space with a Monte Carlo method and geometry optimizations, at DFT level, with M0…
Abstract Pt/carbon xerogel (CX) catalysts were synthesized by the multiple strong electrostatic adsorption (SEA) method. This method consists of the impregnation of a carbon support (here, a CX) by a solution containing hexachloroplatinic acid (H2PtCl6). The impregnation pH is precisely chosen to maximize the ion/supp…
In this paper, a new technique for fabricating self-propagating explosive Al/Ni flakes is described. Al/Ni multilayer films showing self-propagating exothermic reaction are deposited by dual-source dc sputtering onto a mesh substrate made of nylon. After the deposition, the films are removed as the flakes from the sub…
The composition of InxGa1 - xN nanorods grown by molecular beam epitaxy with nominal x = 0.5 has been mapped by electron microscopy using Z-contrast imaging and x-ray microanalysis. This shows a coherent and highly strained core-shell structure with a near-atomically sharp boundary between a Ga-rich shell (x ∼ 0.3) an…
We report on the generation of vector vortex beams using a 10-μm core multimode liquid core optical fiber (LCOF) filled with CS(2). The first higher-order modes including radially, azimuthally and hybrid polarized vector modes, as well as the higher-order modes such as LP(21) mode and LP(31) mode are selectively excit…
There is a huge demand on miniaturized cameras in the field of mobile consumer electronics. These cameras are currently based on miniaturized single aperture optics. In order to further decrease the thickness of miniaturized camera systems, a multichannel imaging principle needs to be used. These artificial compound e…
Ceramic environmental barrier coatings (EBC) and SiCSiC ceramic matrix composites (CMCs) will play a crucial role in future aircraft propulsion systems because of their ability to significantly increase engine operating temperatures, improve component durability, reduce engine weight and cooling requirements. Advanced…
The nature of the earliest steps of the initiation of the folding pathway of globular proteins is still controversial. To elucidate the role of early closure of long loop structures in the folding transition, we studied the folding kinetics of subdomain structures in Escherichia coli adenylate kinase (AK) using Förste…
The field emission (FE) properties of nickel nanoparticles embedded in thin silica matrix irradiated with 100 MeV Au+7 ions at various fluences are studied here. A large increase in FE current density is observed in the irradiated films as compared to their as deposited counterpart. The dependence of FE properties on…
Hydroxyethyl starch (HES) has been proposed as a biodegradable polymer for shielding of DNA polyplexes, where the feasibility of this approach was shown both in vitro and in vivo. In this study, we report on the physicochemical characterization, the in vitro cytocompatibility and hemotoxicity of HES-decorated polyplex…
100-nm indium-gallium-zinc-oxide (IGZO) thin-film transistors were fabricated with a one-mask process, which takes the advantage of photoresist trimming technique and the concept of film profile engineering (FPE). With I-line-based photolithography, a device with channel length of 97 nm has been successfully fabricate…
ABSTRACT In this study, we investigated the CO2‐capture/release behavior of the polystyrene‐bearing cyclic amidine pendant groups, which was synthesized via free radical polymerization of HCl salt of the corresponding styrene monomer followed by neutralization. For comparison, we also prepared the polystyrene bearing…
We have designed a new multichromophoric system based on a tetra(phenylthio)pyrene core appended with four terpyridine units. The system behaves as a molecular antenna that collects light with the peripheral units and funnels the energy to the very highly luminescent core. The addition of metals ions to the investigat…
Ultra-high magnetic field investigation of magnetic phases of MgCr2O4, by means of magneto-optical methods, showed a distinct similarity to that in ZnCr2O4, with clear observation of a canted 2:1:1 phase prior to a half-magnetization plateau, in spite of a difference in the tetragonal lattice symmetry in antiferromagn…
Abstract A series of RENi9In2 compounds (RE = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho and Er) and their hydrides, RENi9In2Hx (RE = La, Ce, Pr, Nd and Eu), have been synthesized and characterized using X‐ray powder diffraction and magnetization measurements. All studied compounds adopt the YNi9In2 structure type [space…
Abstract Purple air‐stable crystals of Ir 8 Se 40 Br 10 were obtained by reacting Ir in an excess of Se and SeBr 4 at 300 °C for two weeks. The monoclinic crystal structure [space group P 2 1 / c , a = 1371.9(1) pm, b = 1108.1(1) pm, c = 2058.2(1) pm, β = 106.897(2)° at 296(1) K] consists of uncharged clusters Ir 8 Se…
The paper presents the results of the field tests of FRC and reinforced concrete specimens which were performed in cooperation with the Czech Army corps in the military training area Boletice. The tests were performed using real scale reinforced concrete precast slabs (61.50.3 m) with varying fibre content, fibre type…
According to recent publications, from 2005 to 2008 there were more than 13,000 terrorist attacks around the world, which took more than 73,000 human lives. The attacks were targeted mainly on the technical and civic infrastructure, like governmental buildings, bridges, etc. Due to improved ductility, fibrereinforced…