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。
Magnetophonon resonances induced by surface optical phonons are studied in both zero and nonzero dc current in n-doped graphene using the balance-equation scheme for nonlinear magnetotransport. At high temperature, obvious magnetophonon resonance in longitudinal resistivity can be observed. The observed single resonan…
Abstract To investigate the influence of the number of substituents on supramolecular assemblies of hydrogen-bonded disk-like (phenylethynyl)benzene derivatives with chiral l-alanine dodecyl groups, a tris(phenylethynyl)benzene derivative 3 and a tetrakis(phenylethynyl)benzene derivative 4 were synthesized. The behavi…
The aim of this study was to obtain special cathodic protection (CP) behavior in coastal bridge structures. This bridge structure was located to the area where repetition between fresh water and sea water taken place due to ebb and flood tide. In this study, zinc-mesh anode was used as a sacrificial anode. Thus, it wa…
A numerical simulation of magnetic materials with random magnetic anisotropy was performed. The magnetization of an assembly of magnetically-interacting grains with randomly-oriented uniaxial anisotropy was calculated using the Landau-Lifshitz-Gilbert equation. For simplicity in the simulation, the magnetizations in a…
A generalized recursive convolution (RC) FDTD method integrated with subcell technique is proposed for studying on transmission and reflection characteristics of cross-shape graphene frequency selective surface (GFSS) which is biased by an electrostatic field. This improved method is very flexible for efficiently mode…
The recycling of rice straw fly ash (RSA) obtained from the biomass power plants has been studied. RSA was calcined at 400, 600, 800 and 1,000 °C for 3 h and investigated their compositions and structures by X-rays fluorescence spectrometer (XRF) and X-rays diffractometer (XRD) respectively. The results show that, the…
This paper presents the development and fabrication of first-of-its kind free-standing ferromagnetic shape memory alloy (FSMA)/Si bimorph cantilevers. The exploitation of FSMAs such as Ni-Mn-Ga is of large interest for nanoactuation due to their multifunctional ferromagnetic and shape memory properties allowing for la…
This study aims to isolate cellulose nanofibers from locally abundant pomelo fruit. Only the inner, soft peels were selected for investigation. The peels were subjected to alkali treatment (NaOH) with different concentrations and soaking times. Acid hydrolysis was also carried out to obtain an aqueous suspension of na…
This paper presents results of field measurements of power quality indices at the terminals of an Electric Arc furnace connected at 34.5 kV to a 230 kV 60 Hz network in Saudi Arabia. The power quality indices that are measured are total harmonic distortion for voltage and current (THD V, THD I), individual harmonics,…
Results of theoretic studies of geometrical, electronic, and energy composition of monolayer boron-carbon BC 3 nanotubes of the zig-zag type ( n , 0) and the cylindrical symmetry are presented. The mechanism of adsorption of atomic hydrogen on the outer surface of the boron-containing BC 3 -nanotubes of the (6, 0) typ…
The behavior of the grain boundary of a copper bicrystal under shear loading is studied by molecular dynamics simulation. The subject of the research is a high-angle boundary of the Σ = 5(210)[001] special type. The effect of the temperature of the sample on the characteristics of the behavior of the grain boundary un…
Three-dimensional (3D) nanofabrication technologies are entering new phases in advanced application fields, such as nanorobotics, metamaterials, and nanomechanical systems. In particular, the ability to arbitrarily create 3D nanostructures in hard materials like semiconductors and metals with nanometer-scale resolutio…
The contact angle of three different reference liquids (i.e. distilled water, diiodomethane, and formamide) was measured by the sessile drop method by gently placing droplet onto the surface of the boron-compounds treated poplar veneer in this study. The permeability of the modified poplar veneer was evaluated. The su…
A thin film of silica aerogel has been spin coated on silicon wafers to investigate its super thermal insulating capability. The temperature of the thin film heaters fabricated on the aerogel coated wafer is measured at different applied powers. Simulations are performed to compare the aerogel coated wafers with the m…
Joining semiconductor chips at low temperatures (below 300 °C) by sintering nanosilver paste is emerging as an alternative, lead-free solution for power electronic packaging, especially high-temperature applications, because of high melting temperature of silver (961 °C). However, silver is susceptible to migration. I…
We explore the unipolar resistance switching effect in sandwich structures based on Nb, Ta and Zr oxide thin films. The structures were fabricated by pulsed laser deposition and low temperature anodic oxidation methods. After electroforming process memory cells demonstrate reproducible switching between low and high r…
Liposomes or lipid vesicles are self-closed structures formed by one or several concentric lipid bilayers with an aqueous phase inside, which may incorporate almost any molecule, namely proteins, hormones, enzymes, antibiotics, anticancer agents, antifungical agents, gene transfer agents, DNA, and whole viruses. Scien…
The structure and surface chemical properties of activated carbon after nitric acid modification and their influences on adsorption and catalytic ozonation of acid red 3R were investigated. The results showed that both specific surface area and micropore volume of activated carbon decreased, but mesopore volume increa…
Gel polymer electrolyte for dye sensitized solar cell application was synthesized from the hydrophilic polyacrylamide (PAM) grafted on natural rubber (NR) particles as flexible substrates at different monomer concentrations (40, 60, and 80% wt) in order to improve ionic conductivity. The seed emulsion polymerization o…
A study of the composition and structure of large single crystal inclusions formed inside cavities in pyroboroncarbon by means of energy dispersive X-ray microanalysis and electron diffraction analysis shows that they correspond to one phase of rhombohedral boron carbide. Bright-field images obtained by transmission e…