Materials Literature
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The crystal structure of SiAl 5 O 2 N 5 was characterized by laboratory X-ray powder diffraction (Cu K α 1 ). The title compound is hexagonal with space group P 6 3 / mmc ( Z = 2). The unit-cell dimensions are a = 0.303153(3) nm, c = 3.28153(3) nm, and V = 0.261178(5) nm 3 . The initial structural model was successful…
By using an optical floating zone technology, orthorhombic columbit ZnNb2O6 single crystals are fabricated successfully. The as‐prepared sample are blue and transparent rods of Φ 4 to 6 mm ×L 48 mm and the biggest domain of Φ 4 mm× L 25 mm. After annealing, the sample fades to colorless. X‐ray diffractions indicates t…
The replacement of diseased tissues with biological substitutes with suitable biomechanical properties is one of the most important goal in tissue engineering. Collagen represents a satisfactory choice for scaffolds. Unfortunately, the lack of elasticity represents a restriction to a wide use of collagen for several a…
Space debris with size larger than 1 cm poses a threat to spacecraft. Recently, space debris surveillance, tracking and early warning become far more urgent than ever before owing to the explosive growth of the number of debris. At the base of these problems is how to determine the visibility of debris to observation…
We present the mechanisms underlying the redshifted and blueshifted photoluminescence (PL) of quantum dots (QDs) upon amorphization of phase change material (PCM). We calculated the stress and energy shift distribution induced by volume expansion using finite element method. Simulation result reveals that redshift is…
We developed a new method combining the in situ liquid-solid phase reaction and self-assembly in solution to synthesize novel inorganic/organic small molecular semiconductor core-shell nanoparticles of ZnS/PTCDA (ZPNPs). This method is a one-step process which can produce stoichiometric inorganic/organic core-shell na…
According to the compositions of the underground gasfield brines in the west of Sichuan Basin, in China, solid–liquid equilibria in the quaternary systems KBr–K 2 SO 4 –K 2 B 4 O 7 –H 2 O and NaBr–Na 2 SO 4 –Na 2 B 4 O 7 –H 2 O at 298 K were measured by isothermal solution saturation method. The solubilities of salts…
We investigate numerically a density functional theory (DFT) for strongly confined ionic solutions in the canonical ensemble by comparing predictions of ionic concentration profiles and pressure for the double-layer configuration to those obtained with Monte Carlo (MC) simulations and the simpler Poisson-Boltzmann (PB…
The asymmetric unit of the title compound, [Sb(C44H28N4)Cl2][SbCl6], consists of one half of an anti-mony(V) tetra-phenyl-porphyrin complex cation and one half of an hexa-chlorido-anti-monate(V) anion. In the complex cation, the Sb(V) atom lies on an inversion center and is octa-hedrally coordinated by four N atoms fr…
SUMMARY Laser Thomson scattering (LTS) was applied to arc discharges generated in the atmosphere to measure electron density (ne) and electron temperature (Te). The electrode gap was 0.8 mm, and the electrode diameter was 1 mm. The applied voltage was 6 kV, the peak current was 600 A, and the decay time of the voltage…
Abstract Hot deformation behavior of AISI 420 stainless steel was studied under hot compression tests in the temperature range of 950 to 1150 °C and strain rates of 0.01 s −1 and 0.1 s −1 . The study indicates that higher deformation temperature makes the peak stress pronounced and the occurrence of DRX is detected by…
A method of Dandelin’s spheres construction for second order arbitrary rotation surfaces based on parameterization in AutoCAD package has been proposed. Examples have been provided. The estimation of accuracy related to definition of focal points and directrixes by proposed method has been given. It has been shown tha…
Universality has been a key concept for the classification of equilibrium critical phenomena, allowing associations among different physical processes and models. When dealing with nonequilibrium problems, however, the distinction in universality classes is not as clear and few are the examples, such as phase separati…
A reversible crystal-to-crystal transformation of a 1D lead(II) coordination polymer to a 2D lead(II) coordination polymer with the ligand 1,2-di-(4-pyridyl)-ethylene (bpe), [Pb2(μ-bpe)3(μ-NO3)2(NO3)2(H2O)2]n (1) to [Pb2(μ-bpe)3(μ-NO3)2(NO3)2]n (2), by de- and rehydration has been observed and the structures of 1 and…
In this paper, based on the framework of the Flügge's shell theory, the transfer matrix approach and the Romberg integration method, the vibration behavior of an elastic oval cylindrical shell with parabolically varying thickness along of its circumference resting on the Winkler-Pasternak foundations is investigated.…
Very high field $^{29}\mathrm{Si}$-NMR measurements using a fully $^{29}\mathrm{Si}$-enriched ${\mathrm{URu}}_{2}{\mathrm{Si}}_{2}$ single crystal were carried out in order to microscopically investigate the ``hidden order'' (HO) state and adjacent magnetic phases in the high field limit. At the lowest measured temper…
The dehydrogenase PylD catalyzes the ultimate step of the pyrrolysine pathway by converting the isopeptide L-lysine-Nε-3R-methyl-D-ornithine to the 22nd proteinogenic amino acid. In this study, we demonstrate how PylD can be harnessed to oxidize various isopeptides to novel amino acids by combining chemical synthesis…
The endohedral fullerene molecule, N@C60, is a candidate for molecular spin qubits (quantum bits) and spin probes owing to its exceptional electron spin properties. Advancements in the processing of N@C60 are key to obtaining samples of high purity on a reasonable timescale. We investigate enrichment by high throughpu…
Dimensionality reduction is widely used in searching for the intrinsic reaction coordinates for protein conformational changes. We find the dimensionality-reduction methods using the pairwise root-mean-square deviation (RMSD) as the local distance metric face a challenge. We use Isomap as an example to illustrate the…
We present that the tractional flow of a lubricant shows three kinds of limiting shear stresses at which the shear stresses take place independently of the shear rates in its viscous, viscoelastic, and glassy states. We propose three models on the mechanisms for the limiting shear stresses, based on the data of Brillo…