Materials Literature
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In recycling cooling system used reclaimed water, the main ions of the reclaimed water must form chemical scales with the increase of temperature and concentrate ratio , In order to control the formation of scale, we must control the fouling ion in the reclaimed water.In this paper the influence laws of Ca2+, Mg2+, HC…
A new photochromic diarylethene compound 1-[(2-methyl-5-(4-trifluoromethyphenyl)-3-thienyl)]-2-{2-methyl-5-[2-(1,3-dioxolane)]-3-thienyl} perfluorocyclopentene 1O was synthesized. Its optoelectronic properties, such as photochromism in solution as well as in poly-methylmethacrylate (PMMA) amorphous films, fluorescence…
Au can behave like H in forming super- and hyperhalogens with Au acting either as a ligand or as a central atom. Similar to AlH4 and HF2, AlAu4 and AuF2 are superhalogens. They can also form hyperhalogens, such as Na(AlAu4)2 and AuF2AuAuF2, as shown on p. 3227 by Q. Wang et al.
An analytical expression for the EPR linewidth of an exchange-coupled 1/2-spin chain originating from uniform Dzyaloshinskii-Moriya interaction is derived using a quasi-classical approach. The expression successfully reproduces the results obtained by numerical quantum mechanical calculations based on Green’s function…
The nonlinear absorption (NLA) properties of copper phthalocyanine (CuPc) acetone solution were investigated by femtosecond open-aperture (OA) Z-scan technique. The reverse saturable absorption (RSA) was observed, and it was found that the RSA effect was origin from three-photon absorption. Moreover, the influences of…
In order to improve the secondary electron emission coefficient of MgO, we propose to dope Al into MgO. The precursor was obtained by hydrothermal method in the condition of different reaction temperature, different filling volume and different reaction time by using urea, Mg (CH3COO)2and AlCl3. The Al-doping MgO crys…
The diraction gratings, fabricated in our laboratory, were presented and analyzed by atomic force microscopy in earlier publications. In this paper we apply the FourierPade approximation on our data previously analyzed by fast Fourier transform, proving advantages of using the FourierPade approximation for spectral an…
This study aims to produce bacteriostatic fibrous membranes, and polyvinyl alcohol (PVA), sodium alginate (SA), and Angelicae Dahuricae Radix (AC) are used to form PVA/SA/AC fibrous membranes. This study uses different solvents for the extraction of AC extracts. Fiber types, ultraviolet absorption spectrum analysis, a…
A coupled model of damage and plasticity to describe the complex behavior of concrete subjected to impact loading is proposed in this paper. The concrete is assumed as homogeneous continuum with pre-existing micro-cracks and micro-voids. Damage to concrete is caused due to micro-crack nucleation, growth and coalescenc…
Matrices of titania nanotubes (TiO2NTs) have been prepared by anodization of Ti foils in ethylene glycol based electrolyte. These matrices were subjected to annealing at various temperatures or exposed to a focused laser beam and were characterized by transmission electron microscopy (TEM), micro-cathodoluminescence (…
In this paper, nanocopper oxide is prepared by complexing-precipitate, and the influence of different process parameters on the removal of H2S performance are studied, and make a comparison for two other methods. The results indicate that different complexing agent, the molar ratio of Cu2+/OH- and calcination temperat…
onic Polymer Metal Composites (IPMC) is a new kind of electro-active smart material that has many advantages including bending actuation, large displacement, low weight, low driven voltage, low power consumption, flexibility etc. The mechanical characteristic of IPMC is related to ionic polymer membrane, such as thick…
We present the realization and characterization methods of plasmonic devices that operates in visible and infrared domains. We start with a short presentation on the criteria on which we select the appropriate materials and dimensions for this type of devices. After that, we present a series of characterization method…
In this paper, a type of typical PD source, micro-void discharge, is designed and fabricated to imitate the defects in GIS online. The void in solid insulation is carved by the laser inside-carving machine and the machining operation, respectively. Comparing these two kinds of void discharge, a single void discharge f…
The sintering behavior and the resulting of cermet are influenced not only by the characteristics and impurities of the raw materials but also are found to be dependent on the thermal history during the fabrication process. Our work is concerned with the effect of sintering temperature on the mechanical properties of…
The spin Hamiltonian parameters (g factors g||, g and the hyperfine structure constants A||, A) for the Cu2+centers in alkali barium borate glasses were theoretically studied based on the high-order perturbation formulas of these parameters for a 3d9ion in a tetragonally elongated octahedron. From the calculations, th…
The model of a superconducting metamaterial, which is a disordered lattice of Josephson junctions, has been studied theoretically and by computer simulation. The aim of this work is to reveal and analyze the conditions under which the generation frequencies of constituting junctions are locked in the system under stud…
Interface properties of Al2O3insulated gates on AlGaN/GaN structures prepared by atomic layer deposition have been characterized, focusing on the interface state density distribution at the Al2O3/AlGaN interface. We have developed a C-V calculation method taking into account electronic states charges at the Al2O3/AlGa…
In this research the age hardening behaviour of 6061–15 wt-%SiCp composite was investigated at different temperatures. The greatest age hardening effect with highest peak aged hardness (110 HV) was obtained at an intermediate temperature (175°C) with 2 h holding. This was attributed to the presence of the transition p…
Accurate identification of model parameters is to improve the giant magnetostrictive precision displacement control key, For single algorithm is difficult to achieve for giant magnetostrictive hysteresis nonlinear model parameters accurately identify problems, in this paper, the genetic algorithm and simulated anneali…