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。
In the present study, nano-flake SmCo5powders with typical flake thickness of 300 nm were prepared by high energy ball milling using valeric acid as a surfactant. In order to remove the surfactant the as-milled powders were heat treated in argon and the effect of the annealing temperature on structural and magnetic pr…
The frequency dependence of the magnetoelectric effect in a magnetostrictive-piezoelectric heterostructure is theoretically studied by solving combined magnetic, elastic, and electric equations with boundary conditions. Both the mechanical coupling coefficient and the losses of the magnetostrictive and piezoelectric p…
At a number of locations in the U.S., spent nuclear fuel (SNF) is maintained at independent spent fuel storage installations (ISFSIs). These ISFSIs, which include operating and decommissioned reactor sites, Department of Energy facilities in Idaho, and others, are licensed by the U.S. Nuclear Regulatory Commission (NR…
Nanoindentation is used to measure Young’s modulus, the hardness, the plasticity, and the yield strength of the phases in Al-50 wt % Sn alloy samples prepared by a traditional method and using liquid-state homogenization. The effect of an increase in the cooling rate by an order of magnitude and alloying with 0.06 wt…
We investigate the use of laterally-coupled High Overtone Bulk Acoustic Resonators (HBAR) based on AlN thin films sputtered on silicon and sapphire substrates in order to target an operation frequency between 2 and 5 GHz. Being tightly coupled, they generate an extremely narrow bandwidth, assimilated to a single reson…
Carbon nanotubes (CNTs) dispersion in polymer matrices uniformly remains a challenge. Uniform dispersion of CNTs within ultra high molecular weight polyethylene (UHMWPE) solution is the first step to achieve CNT/UHMWPE fibres with excellent properties. Several approaches have been tried. Composite powder was acquired…
We have performed a first principles study of structural, elastic, and electronic properties of rhombohedral Sb2Te3and Bi2Te3compounds using the density functional theory within the local density approximation. The lattice parameters of considered compounds have been calculated. The second-order elastic constants have…
Epoxy asphalt is a thermoset material used in paving industry with good properties in hot environments. However, it is still a brittle pavement in cold environments. Hyperbranched polyester (HBP), which has the characteristics of highly branched structures, massive functional end groups and low viscosity, was used as…
The surface microtopographies of the sea starLuidia quinariawere investigated and measured by 3D video microscope and scanning electron microscope. The antifouling effectiveness of biomimetic microtopographies based on sea star surface was evaluated using diatoms.
This study was to investigate the enhancement ability of 5-azacytidine (5-aza) and collagen I nano-molecules treatment to the differentiation of rat mesenchymal stem cells (MSCs) towards a cardiomyocytes in vitro. The results demonstrated that the size of the cells increased significantly and connecting with adjoining…
Iron-bearing pyrope, an abundant silicate mineral in the Earth’s upper mantle, exhibits the largest quadrupole splitting (QS) in Mössbauer spectra among all common Fe-bearing rock-forming silicate minerals at ambient conditions, with a value of ~3.5 mm/s. Knowledge regarding the hyperfine QS of mantle minerals at rele…
A simple tridimensional negative permeability metamaterial structure Split Ring Resonator (SRR) based on Low Temperature Co-fired Ceramic (LTCC) substrate is proposed to eliminate mutual coupling between array elements. Embedded SRRs can help in the reduction of mutual coupling by using their capability of suppressing…
Tamed electrons: To manipulate a protein photocycle in a directed manner, the flavoprotein dodecin was endoscopically modified at its key amino acid tryptophan with substituents carefully selected by their structural and electronic influence. The approach is ideal in the precision of rational protein engineering, and…
We have developed a magnetospinography (MSG) system that detects weak magnetic fields associated with spinal cord neural activity using an array of low-temperature superconducting quantum interference device (SQUID)-based magnetic flux sensors. A functional image of the spinal cord can be obtained noninvasively by usi…
We report a method to focus the electron beam generated using a pyroelectric crystal. An electron beam with a spot size of 100 μm was achieved by applying an electrical field to an electroconductive needle tip set on a pyroelectric crystal. When the focused electron beam bombarded a sample, characteristic X-rays of th…
New procedures were developed for chemical treatment of detonation nanodiamonds and diamond-containing detonation blend to remove water-insoluble metal-containing impurities. The detonation nanodiamond material is treated with complexing agent solutions under cavitation conditions and at high temperature and pressure.…
To obtain statistical data on quantum-dot sizes, AFM topographic images of the substrate on which the dots under study are grown are analyzed. Due to the nonideality of the substrate containing height differences on the order of the size of nanoparticles at distances of 1–10 μm and the insufficient resolution of close…
Different amounts of Fe, Co, Ni and Cu-doped TiO2 thin films were prepared on fluorine doped tin oxide (FTO) coated soda-lime glass substrates by following a conventional sol-gel dip-coating technique followed by heat treatment at 550 and 600°C for 30 min. These thin films were characterized for photo-current, chronoa…
Graphene-enabled Wireless Communications (GWC) advocate for the use of graphene-based plasmonic antennas, or graphennas, which take advantage of the plasmonic properties of graphene to radiate electromagnetic waves in the terahertz band (0.1-10 THz). GWC may represent a breakthrough in the research areas of wireless o…
We used numerical simulations to study the dynamical behavior of the transverse domain wall (TDW) in nanowires made of Permalloy-79 contaminated by pointlike magnetic impurities. It was observed that the magnetic impurities can behave both as pinning (attractive) and as scattering (repulsive) sites for the TDW. We hav…