Materials Literature
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A kind of three dimensional, sub-diffraction grating with converging-diverging channel working at terahertz regime has been developed on doped silicon wafers by wet etching. By introducing a geometric asymmetry to the vertical direction of the 3D grating, an anti-resonance is observed near the resonant wavelength of t…
Abstract Liposomes have been used widely as carriers for active ingredients in cosmetics because of their ability to encapsulate both hydrophilic and hydrophobic compounds. In this work, fatty acid liposomes were prepared and introduced into olive oil‐in‐water emulsions stabilized by C14–C18 sucrose ester mixtures at…
Amorphous SiO2 nanotubes (NTs) with outer and inner diameters of 35 ± 4 nm and 10 ± 4 nm, respectively, were synthesized through inorganic transcription using organic amphiphilic self-assemblies as templates. By performing three-point bending tests on suspended SiO2 NTs using an atomic force microscope, their elastic…
Abstract Scale deposition is one of the most serious oilfield problems when two incompatible waters interact chemically and precipitate minerals. Typical examples are sea water, with high concentration of sulfate ions and formation waters with high concentrations of calcium, barium, and strontium ions. Mixing of these…
The high-hardness ceramic films, such as TiN, DLC, CrN, etc., are characterized by high hardness and superior tribological performance, which are widely used to improve the wear resistance and service life of components. However, some methods for evaluating the tribological performance of the films have some drawbacks…
An efficient, simple and new procedure has been performed to synthesis Au/TiO 2 nanocomposite thin film on solid surface of ITO by seed-mediated of liquid phase deposition (LPD) method. The deposition of Au seed was applied by our previously reported seed-mediated growth procedure. The solution was prepared by mixing…
High Resolution Image Download MS PowerPoint Slide Sr 6 Ta 2 O 11 presents an interesting model system of a highly defective and disordered complex perovskite, exhibiting oxide ion conductivity at high temperatures as well as proton conductivity when hydrated by presence of water vapor. In this paper, we present a com…
We have performed full stereographic study on angle-dependent magnetoresistance oscillations (AMROs) in the layered organic conductor, α-(BEDT-TTF)2KHg(SCN)4, which shows a charge density wave (CDW) transition at \(T_{\text{c}}\). AMROs originating from normal Fermi surfaces (FSs) and reconstructed ones appear above \…
We propose novel interaction-based routes to half-metal states for interacting electrons on two-dimensional lattices. Magnetic field applied parallel to the lattice is used to tune one of the spin densities to a particular value commensurate with the lattice in which the system spontaneously ``locks in'' via the Van H…
Barium ferrite-barium titanate composite systems, (1-x)BaFe 12 O 19 − (x)BaTiO 3 with different weight fractions of × = 0.0, 0.1, 0.3 and 0.5 were prepared via the conventional solid state reaction method using nano-sized starting materials. The x-ray diffraction peaks of the composite samples show two phases which ca…
Abstract A novel non‐enzymatic glucose sensor based on nickel hydroxide and intercalated graphene with ionic liquid (G‐IL) nanocomposite modified glass carbon electrode was fabricated. Scanning electron microscope, Fourier transform infrared spectra and energy dispersive X‐ray spectroscopy of the nanocomposite confirm…
We describe the fabrication of nanostructures on SiGe film by KrF excimer laser with nanosecond pulse width, and find a more direct and clear relationship between the laser irradiation conditions and the nanoscale structures. Perfect annular nanostructures around scattering points on the SiGe film are firstly obtained…
We report ultrafast quasiparticle (QP) dynamics and coherent acoustic phonons in undoped CaFe_2As_2 iron pnictide single crystals exhibiting spin-density wave (SDW) and concurrent structural phase transition at temperature TSDW ~ 165 K using femtosecond time-resolved pump-probe spectroscopy. The contributions in trans…
Abstract This paper concerns the design of a robust discrete‐time observer‐based repetitive‐control system for a class of linear plants with periodic uncertainties. A discrete two‐dimensional model is built that partially uncouples the control and learning actions of a repetitive‐control system, enabling their prefere…
The mechanism of a lightning discharge as introduced by Schonland(1)* and coworkers 1938 is analagous to a spark discharge between two metallic electrodes. Charges are collected by the leader stroke from the negatively charged cloud volume (negative electrode) and carried either to ground (positive electrode) producin…
Findings of investigation of Cu and Zn alloys of different chemical and phase formulation are given. Brasses (α-, (α+β)- and β-phases of Сu, Zn system) corrosive behavior was explored as well as arsenic influence on brasses dezincification as compared with the effect of arsenic subgroup elements Р, Sb and Bi.
1 هورگ رایشناد یشزومآ ییابیز و یمیمرت ، و یکشزپ مولع هاگشناد ،یکشزپنادند هدکشناد یتشادهب تامدخ ، نارهت ینامرد ، ناریا ،نارهت 2 هورگ رایداتسا یشزومآ یمیمرت ییابیز و ، و یکشزپ مولع هاگشناد ،یکشزپنادند هدکشناد یتشادهب تامدخ ، نارهت ینامرد ، ناریا ،نارهت 3 هورگ داتسا یشزومآ ییابیز و یمیمرت ، و یکشزپ مولع هاگشناد ،یکشزپناد…
Magnetic properties of magnetically concentrated KGd(WO4)2 single crystal are studied using EPR spectroscopy. The EPR spectra are broad and have a complex shape, showing contributions of a few gadolinium centers. Temperature dependence of the total intensity of the EPR spectra and the inverse of the total intensity re…
There has been significant research in recent years to analyze and improve the impact behavior and puncture resistance of railroad tank cars. Much of this research has been performed using detailed nonlinear finite element analyses supported by full scale impact testing. This use of detailed simulation methodologies h…
In this study, the optimal design of spacers and fiber glass layer of a metal oxide surge arrester is presented in order to achieve a more uniform electric field distribution, inside and outside the arrester. This is done by using intelligent algorithms and numerical analysis, i.e., Finite Element Method (FEM). The in…