Materials Literature
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This work aims at studying of an efficient way for synthesizing nano-sized particles of lead-bismuth alloy and illustrating their fabrication mechanisms from SEM morphologies. With highly ordered nano-channels developed on the surfaces of anodic aluminum oxide (AAO) template, the lead-bismuth eutectic (Pb45Bi55) as ho…
The characteristic of worsted spinning procedures and the BP neural network modeling technology all have been summarily analyzed. Based on the nonlinear and vague relationship depend on fiberspsila performance and craft parameters, the grey superior theory and correlation analysis method are proposed to select more im…
A variety of different alkoxyamine structures, which led to a new class of nitroxides with a quarternary phosphonic acid (and its ethylesther) group, was investigated. These compounds were able to control the polymerisation of styrene at temperatures as low as 70°C. The new alkoxyamines were also tested in the polymer…
The structural and electronic properties of sodium bromide (NaBr) are investigated by the density functional theory (DFT) within the generalized gradient approximation (GGA) for the exchange and correlation energy. The equilibrium lattice constant, bulk modulus and its pressure derivative are obtained by fitting the c…
Conditions for a transition from the insulator (I) to metal (M) state in the electron system of highly oriented pyrolytic graphite (HOPG) have been studied by means of magnetotransport measurements in a broad temperature range (0.3–150 K). In magnetic fields below a certain critical value (B < B c ≈ 0.05 T), HOPG exhi…
Nonwoven geotextiles are widely employed in civil engineering applications for the functions of separation, filtration, drainage and protection. These functions are highly dependent upon pore size as it is one of their major requirements and it becomes more critical when geotextile is subjected to a compressional load…
Glasses in the system of Sm2O3-Gd2O3-MoO3-B2O3-BaO are prepared, and structural changes are induced by irradiations of continuous wave Nd: YAG laser with a wavelength of λ=1064 nm. The optical absorption coefficient of Sm3+ ions at λ=1064 nm in the glasses is found to increase linearly with increasing Sm2O3 contents,…
The paper presents work performed in the last phase of the decommissioning of the ASTRA research reactor at the Austrian Research Centers Seibersdorf. Dismantling the pump room installations and the ventilation system, as well as the clearance of the buildings is described. Some conclusions and summary data regarding…
The Algonquin Power Energy-From-Waste (APEFW) facility is located in the suburban Toronto, Ontario city of Brampton. It receives approximately 140,000 metric tonnes (154,000 tons) of MSW per year from the Region of Peel (Region) and approximately 10,000 metric tonnes (11,000 tons) per year of international airport was…
Epitaxial thin films of La2CuSnO6 have been grown on (001)-oriented SrTiO3 substrates by a pulsed laser deposition method. The obtained films had the layered arrangement of Cu2+ and Sn4+ ions and also the 2-fold superstructure within the ab plane making a 2a×2a×2c tetragonal double-perovskite unit cell. Analysis of th…
The leaf essential oil of Calotropis procera (R.Br.) was analysed by GC and GC-MS. The leaf oil contained phytol (33.6 %), myristic acid (31.2 %) and myristicin (19.9 %) as major constituents.
Ultrafine precursor powder of YBa2Cu3O7−δ was prepared via co‐precipitation method. Synthesis route is developed by saturated solution of metal acetates and 2‐isopropanol solution of oxalic acid. The thermal treatment (24 hrs calcinations at 920 °C, 24 hrs sintering at 920 °C) gives a superconductor YBa2Cu3O7−δ with a…
The dynamic structure factor S(Q,ω) of glassy and suppercooled liquid SiO2 was measured by a high energy‐resolution inelastic X‐ray scattering (IXS) spectrometer installed at BL35XU of the Spring‐8, in a wide temperature range up to 1300 °C, a wide momentum transfer Q range from 1.3 to 37.2 nm−1, and an energy transfe…
Perovskite manganites La1−xSrxMnO3 (x = 0.075, 0.10, 0.125, 0.15, 0.17, 0.185, 0.30, 0.50, 0.60, 0.75) have been studied as a function of temperature (1 K⩽T⩽20 K) by means of a Rigid Ion Model (RIM) for the determination of specific heat, Debye temperature, cohesive energy, restrsahlen frequency and Grüneisen paramete…
Nano/micro 复制，一种技术广泛地在微电子学地里适用，被介绍在材料上准备恐水病的 bionics 微观结构表面。Poly (乙烯醇)(PVA ) 并且莲花叶表面上的乳突微观结构的聚苯乙烯(PS ) 模子被 nano/micro 复制技术分别地准备。并且(dimethylsiloxane )(PDMS ) poly，有像乳突的微观结构的复制品从这些二种聚合物模子被准备。扫描电子显微镜(SEM ) 被采用在模子和复制品上调查形态学和微观结构。在微滴和 PDMS 复制品的表面也是的水之间的静电干扰和动态接触角测量了。作为结果，类似的微观结构能在 PDMS 复制品的表面上清楚地被观察， PDMS 复制品上的静态的接触角被这些微观结…
Material polimer sekarang ini telah digunakan secara luas sebagai isolasi peralatan tegangan tinggi. Dalam penggunaannya, isolasi polimer dapat mengalami penurunan kualitas isolasi atau degradasi hingga tidak dapat berfungsi sebagai isolator yang layak. Salah satu penyebabnya utama penurunan kualitas isolasi adalah ka…
Mg/Cu super-laminates prepared by repetitive fold and roll method using conventional two-high roll mill was investigated on changes of micro/nano-structures and hydrogen absorption properties during initial activation. The results of in-situ XRD analyses suggested that the hydrogen absorption/desorption mechanism of M…
The porous ceramics is composed of lots of bridge arch-shaped misrospores that connected and well-distributed inside the material.As an important key engineering material,The Porous ceramics offers many advantage compared to usual structural ceramic material.Such as: uniform pore sizes and high surface areas,excellent…
Polysulphonamide fiber that belongs to the para-position fragrant black silk ribbon series is an aromatic polysulphonamide organic thermo-stable fiber researched and developed based on the Chinese owned technique.The fiber is evaluated to have the properties,strength: 3.1～4.4 cN/dtex,elongation ratio: 20 %～25 %,initia…
To realize the goal of the real and imaginary part of permeability being above 10 at 2 GHz,influences of saturation magnetization Ms,anisotropy field Hφ and Hθ and damping parameter α on the permeability spectra of Co2Z hexagonal ferrites were analyzed theoretically,based on the Landau-Lifshitz theory.Under the instru…