Materials Literature
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The oxidation of residual product for recycling is a key problem to develop the magnesia desulfurization process. Samples of high purity magnesium sulfite were prepared by rotary evaporation in vacuum. The uncatalyzed oxidation kinetics of magnesium sulfite was studied by a bubbling apparatus. Effects of pH,oxygen par…
Based on the variation principle, many methods have been developed in atomic structure calculations. A high quality complete basis set is essential to the calculation of atomic structures. We present how to construct quasi-complete basis sets through Dirac-Fock calculations and multi-configuration Dirac-Fock self-cons…
The application of heterogeneous photocatalysis is described as an advanced oxidation process (AOP) for the degradation of the diazo reactive dye using immobilized TiO2 as a photocatalyst. Starting TiO2 solutions were prepared with and without the addition of polyethylene glycol (PEG) and TiO2 films were directly depo…
为研究洪湖浮游植物群落结构及其与环境因子的关系,于2008年3月(枯水期)及7月(丰水期)在洪湖进行采样分析。两次采样共鉴定有浮游植物6门46属95种,细胞丰度变化范围为2.00×105-284×105 cells/L。硅藻为两个季节绝对优势门类,其次为绿藻及蓝藻;主要种属为直链藻、脆杆藻、栅藻等.丰水期与枯水期浮游植物群落结构季节差异较大;在枯水期由于硅藻对水温和光照较好的适应能力使其处于优势门类;丰水期由于其他藻类对营养盐的竞争及水体中硅含量充足使得绿藻等生长同时硅藻能继续保持优势地位。主成分分析表明在洪湖富营养化水平及水体中离子类型、水体中物质组成和污染程度是影响浮游植物生长的三类主要因素;典范对应分析结果表明浮游植物群落结…
In this work, tensile and yield stress and tensile and yield strain of oblique layer functionally graded steels produced by electroslag remelting were investigated. Functionally graded steels containing ferrite, austenite, bainite, and/or martensite layers may be fabricated via diffusion of alloying elements during th…
The chemical states of -ion-sputtered amorphous Ga–In–Zn–O ( -GIZO) thin films were investigated by high-resolution X-ray photoelectron spectroscopy. The sputtering reduced the Zn and In contents relative to that of Ga and generated a subgap state above the valence band maximum. Further sputtering resulted in metallic…
The full potential linear augmented wave method has been used for an ab-initio study of structural, electronic and high pressure phase transformation features of ZnAl 2 Se 4 . The exchange and correlation potential (XC) was calculated using the Perdew–Burke–Ernzerhof generalized gradient approximation (PBE-GGA) and th…
Psyllium traditionally is used as a laxative agent and a source of dietary fiber. Recently, in the landscape industry, a psyllium-based binding product was innovatively used to replace chemical binders for pavement in environmentally sensitive areas. The ingredients of the psyllium-based binding product were determine…
A comparison of the synthesis and structural properties of magnetic FePt nanostructures is presented. The FePt nanoparticle system is an excellent candidate for ultrahigh-density magnetic recording. Monodisperse FePt nanoparticles were synthesized by the superhydride method. The composition of nanocrystals was determi…
Based on a large number of experiments on solubilization of poorly water-soluble drugs, the author is of the opinion that hydrotropy is another type of cosolvency and all water-soluble substances whether liquids, solids, or gases may act as solubilizers for poorly water-soluble drugs. In the present investigation, a m…
A level-set method for computations of interfacial flows with insoluble surfactants with electric fields is presented.The discontinuities at the interface are captured in a sharp manner using the ghost-fluid method.The accuracy of the method is tested and compared to the standard level-set method.The method is then us…
The deliberately prepared one ssDNA/one micelle complex has an unstable toroidal DNA-bound region and stable upper and lower hemispheres, and thus can self-assemble along the plane of the unstable toroidal region into free-suspending films.
We propose a method based on surface-enhanced Raman scattering (SERS) to estimate the resonance Raman cross sections of dyes. The latter are notoriously difficult (or impossible) to obtain by normal (spontaneous) constant wave Raman spectroscopy when the fluorescence quantum yield of the molecules is good and the over…
The topography of mica surface after treatment with silane coupling agent having a mercapto group was studied using an atomic force microscope. The cleaved mica plate was used as a model inorganic surface. The effect of treatment condition on the topography of the mica surface was investigated. Agglomerates consisting…
A definitive, quantitative investigation has been performed to determine whether orbital atherectomy gives rise to cavitation. The investigation encompassed a synergistic interaction between in vitro experimentation and numerical simulation. The experimentation was performed in two independent fluid environments: 1) a…
With a view to examine the axial crushing behavior of thin-walled structures, which are used as energy-absorbing components of transports under various dynamic compressive loads, some thin-walled circular and regular polygonal tubes were investigated mainly by the FEM simulation. The former examination was focused on…
In this paper finite element simulation and neutron diffraction measurements are employed to assess the residual stresses in an AISI 316LN austenitic stainless steel plate containing a three-pass finite length weld in a machined slot. This work forms a part of the Task Group 4 (TG4) measurement and simulation round ro…
CoCl2 was treated with 1, 2, and 6 eq. of 2,6-bis(5-phenylpyrazol-3-yl)pyridine (H2L) yielding respectively the monosubstituted [Co(H2L)Cl2], the disubstituted [Co(H2L)2][PF6]2, and a supramolecular assembly formed by a central disubstituted octahedral complex and four more hydrogen bonded peripheral ligands, [{Co(H2L…
Our aim in this paper is to study a doubly nonlinear Cahn-Hilliard-type system. In particular, we prove existence and uniqueness results and the existence of global attractors.
The sensor properties of In 2 O 3 · SnO 2 polycrystalline films having different compositions were studied in the detection of 2% hydrogen in air over the temperature range 330–530°C. Films containing 19% In 2 O 3 were most sensitive to hydrogen. The temperature dependence of the sensitivity of sensors passed a maximu…