Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
We propose an alternative segregation mechanism where the species-dependent interactions are dynamically induced by the phase synchronization of beads. Based on this scenario, we report an alternative segregation among beads of different restitution coefficients by molecular dynamics simulations. Since the beads are o…
We examine the depairing field ${H}_{c2}(T)$ of noncentrosymmetric superconductors with a spin-orbit coupling larger than the Zeeman energy at ${H}_{c2}(0)$ by taking account of the mixing of spin-singlet and triplet pairing states due to the missing parity. When the singlet and triplet pairing components are mixed wi…
Recent studies have shown that statistical damage mechanics is one effective method to study the failure process of quasi-brittle materials. There are two key problems in setting up the statistical damage constitutive model of quasi-brittle materials, namely, determining the microunit strength and the parameters of st…
The asymmetric unit of the title compound, (C(6)H(9)N(2))(2)[CuCl(4)], consists of one cation and one half-anion, bis-ected by a twofold rotation axis through the metal center. The anion exhibits a geometry that is inter-mediate between a T(d) and D(4h) arrangement about the Cu atom. The crystal structure contains cha…
A study was performed to examine the J c behavior as a function of thickness in MgB 2 films fabricated by ex situ annealing at 840 °C of boron films, grown by chemical vapor deposition, in Mg vapor. The film thicknesses range between 300 nm and 10 µm. The values of J c range from 1.2 × 10 7 A cm −2 for 300 nm to 1.9 ×…
The device fabrication and integration of nanopatterned quantum dots (PQDs) are realized through the demonstration of a broad-area light-emitting diode with PQD active region. The device involves two growth processes, first to form PQDs by selective-area epitaxy on an SiO(2) mask and then to complete the device struct…
A new type of hybrid material was designed and created by reinforcing periodic cellular metals (PCMs) with rigid polyurethane foams. Two different PCM geometries and two types of rigid polyurethane foam were used to create four different hybrid materials. These novel materials may find useful application as cores in s…
By using an axially chiral 6,6′-disubstituted-1,1′-bis-2-naphthol as the electron donor, we successfully formed chiral charge-transfer (CT) complexes with 1,2,4,5-tetracyanobenzene (TCNB) and examined their crystal structures.
The effect of substitution of Portland cement by limestone up to 40% as well as its fineness on the physico‐mechanical properties of fresh and hardened cement pastes is studied. The binder was prepared by substitution of cement by limestone filler. Fillers were chosen of various particle sizes and with percentages fro…
A selection of metal-catalyzed C-C bond-forming strategies has been evaluated in the synthesis of a series of meta-substituted thienylbenzenes, (T(n))(2)C(6)H(4) and (T(n))(3)C(6)H(3) (n = 1, 2; T(1) = 2-thienyl; T(2) = 2,2'-bithien-5-yl). Kumada coupling reactions catalyzed by PdCl(2)(dppf) between the appropriate th…
The influence of orientation of carbon fiber rods on the core shear properties of Z-pins reinforced foam core sandwich was investigated by a series of out-of-plane shear tests. The reinforcing pins were aligned along or opposite to the shear loading direction, or they were arrayed in an X-shaped configuration. Experim…
Well-oxygenated superconducting YBa2Cu3O7?? (Y123) fibres of ~20??m diameter have been synthesized by a biomimetic chemical synthesis protocol in the presence of the polysaccharide dextran. The resultant fibre morphology is highly porous, comprising a network of finely grained YBCO crystallites, yielding an enhanced c…
Electron Paramagnetic Resonance (EPR) Volume 21 highlights major developments in this area, with results being set into the context of earlier work and presented as a set of critical yet coherent overviews. The topics covered describe contrasting types of application, ranging from biological areas such as EPR studies…
The study of defective surface sites on many oxides has received considerable interest in recent years as these sites are coordinatively unsaturated and quite often exhibit enhanced activity in many catalytic reactions. Despite this importance, the influence of the defect sites on the chemical natur...
The ultrasonic brazing of 55 vol.-%SiCp/A356 composites in air has been investigated. When the ultrasonic vibration is applied for 0·5 s, the oxide layer is still continuous at most places between the filler metal and the composites. As the ultrasonic action time increases, the oxide film sufficiently disappears in th…
Using accurate Monte Carlo densities for excited states of the boron isoelectronic series, we construct the Kohn–Sham systems for these excited states. The Kohn–Sham system is that for which the non-interacting kinetic energy is closest to the true kinetic energy. Within the exchange-only approximation we also demonst…
Two new cyanide-bridged heterobimetallic coordination polymers constructed by using the [Au(CN)2]− building block, {Cd(bipy)[Au(CN)2]2}n (1) and {{Cd(phen)[Au(CN)2]2(H2O)}·iPrOH}n (2) (bipy = 2,2′-bipyridine, phen = 1,10-phenanthroline), have been synthesized and characterized. Complex 1 with chiral P3112 space group…
Simultaneously assessing liquid limit and plastic limit using a single laboratory test procedure and comparing the results to the standard test methods has not been noted in the published literature. This paper describes an innovative empirical approach that yields Atterberg limit values utilizing a dual-weight fall c…
The interaction of methylene blue (MB) dye solution with various calcium–silicate–hydrate (C–S–H) preparations (C/S ratio=0.60–1.80) was investigated. Experiments were also performed by treating the C–S–H in lime‐saturated water and distilled water. The effects of MB on the X‐ray basal spacing and the degree of polyme…
The structure of inclusion complexes of gamma-cyclodextrin (gamma-CD), (-)-gallocatechin gallate (GCg), and (-)-epigallocatechin gallate (EGCg) in D(2)O was investigated using several NMR techniques. GCg formed a 1:1 inclusion complex with gamma-CD in which the A and C rings of GCg were inserted deep at the head of th…