Materials Literature
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Modal analysis of frequency selective surface (FSS) containing ring loops arranged periodically along any two skewed coordinates, will be calculated. In proposed modal analysis, a compatible set of orthonormal mode functions used for ring loops in addition to Floquet modes which are used in every infinite two dimensio…
A duplex ultrafine microstructure in a medium manganese steel(0.2C-5Mn)was produced by austenite reverted transformation annealing(ART-annealing).The microstructural evolution during annealing was examined by scanning electron microscopy(SEM),transmission electron microscopy(TEM)and X-ray diffraction(XRD).Based on the…
Geopolymere (GP) sind anorganische Bindemittel, welche aus Silikaten wie Hochofenschlacke, Flugasche oder Ton hergestellt werden. Durch Zugabe basischer Losungen (z.B. KOH) wird Si und Al gelost, welches anschliesend polymerisiert und wahrend der Aushartung ein Si-Al-Netzwerk bildet, das als Bindemittel fungiert. Die…
Ammonium sulfate residue is a particulate solid and is produced during the manufacture of ammonium sulfate fertilizer.The residue used in this study contained a large portion of calcium carbonate,from which active lime（CaO） was recovered via thermal decomposition.We used a purpose-built device to decompose the residue…
Recently, the steel plates used in the ship, pipeline and bridge generally required not only high strength but also excellent low temperature toughness. As a competitive candidate, the ultra- low carbon high strength low alloyed(HSLA) steel has been developed widely. The low temperature toughness depends on the micros…
A new white luminescent material Dy3+ doped ZnW O4 was synthesized by hydrothermal route followed by calcining process. The phase structure, morphology and luminescent properties of as-synthesized samples were characterized by X-ray diffraction, scanning electron microscopy and fluorescence spectrophotometry, respecti…
The Pr and Ta separately doped FTO(10 at.% F incorporated Sn O2) films are fabricated via spray pyrolysis. The microstructural, topographic, optical, and electrical features of fluorine-doped TO(FTO) films are investigated as functions of Pr and Ta dopant concentrations. The x-ray diffraction(XRD) measurements reveal…
High strength low alloy steels utilize chemical composition design of low carbon content and are microalloyed with Nb, V and Ti, or other additions, such as Mo and B, etc. The increase of strength is attributed to grain refinement strengthening, solid-solution strengthening, dislocation strengthening and precipitation…
The corrosion resistance of Galvalume coated steel in Qingdao seawater was investigated by polarization curves and EIS methods.The morphology of corrosion products absorbed on the coating was analyzed by scanning electron microscopy(SEM),the effects of temperature and dissolved O2 concentration on electrochemical corr…
To maintain antimicrobial activity, frequent administration of conventional formulations of many antibiotics with short half-life is necessary. Otherwise, concentration under MIC occurs frequently in the course of anti-infective treatment, which induces antibiotic resistance. By maintaining a constant plasma drug conc…
The indoor-outdoor (IO) status of mobile devices is fundamental information for various smart city applications.In this paper, we present NeuralIO, a neural-network-based method for dealing with the IO detection problem for smartphones.Multimodal data from various sensors on a smartphone are fused through neural netwo…
摘要： 通过对新型无碳化物贝氏体轴承钢-GCr15SiAlMo的球化试验研究，优化出一种适于轴承钢的循环球化退火新工艺。利用扫描电镜对球化后的显微组织进行观察，用X射线衍射仪对碳化物类型进行分析。结果表明，GCr15SiAlMo无碳化物贝氏体轴承钢具有优良的碳化物球化特性。试样通过四周期的循环球化退火(大约6 h)后，组织中的碳化物基本球化完全，但是在700 ℃等温10 h的普通球化退火处理试样中仍存在大量的片状碳化物，由此证明，循环球化退火工艺比普通球化退火工艺的球化速度更快，球化更完全。球化处理后钢中碳化物的平均直径均达到了0.55 μm以下，直径在1 μm以下的碳化物百分比在93%以上，甚至达到99%。同时研究表明，Al可有…
The Bi0.5Na0.02Sb1.48-xInxTe3alloys（x =0.02-0.20） were synthesized by vacuum melting and hot pressing methods at 753 K,60 MPa for 30 min.Effects of Na and In dual partial substitutions for Sb on the thermoelectric properties were investigated from 300 to 500 K.Substituting Sb with Na and In can enhance the Seebeck coe…
Based on the characteristics of gas compressibility, the concept of compressible gas-assisted extrusion was proposed. To verify the effect of compressible gas on polymer extrusion molding, the two-phase flow model(polymer melt phase and compressible gas phase) was established by means of finite element method, the non…
Instrumented and Vickers indentation testing and microstructure analysis were used to investigate zirconia toughened alumina（ZTA） and silicon carbide（SiC）.Several equations were studied to relate the Vickers indentation hardness,Young’s modulus and crack behavior to the fracture toughness.The fracture in SiC is unstab…
明确的表达在比控制由超过 3.4 褶层禁止房间移植是更加有效的。因此，我们用 micelle 系统的这些药的合作交货极大地提高的调查结果表演他们在更低的剂量的治疗学的效果，从而最小化毒性。另外，这明确的表达被证明在在低剂量阻止房间移植显著地有效。
TraditionallyBz/T is used to obtain the apparent resistivity values in the data interpretation of grounded-wire source transient electromagnetic,which lead to the problem of multiple solutions.This problem can be solved by using Bz,because the Bz with resistivity change is a single-valued function.In order to study…
Physical properties including refractive index, density, viscosity and conductivity for binary mixtures of 1-butyl-3-methyl imidazolium chloride([BMIM]Cl) and different organic solvents at 298.15 K have been investigated. Excess molar volumes have been calculated and obtained data has been fitted by the Redlich–Kister…
用 Costus pictus 叶摘录(CPLE ) 和他们在 vitro 抗氧化剂和催化活动的潜力的银和金 nanoparticles 的生物合成这里被报导。Costus pictus 银(CPAgNPs ) 和黄金(CPAuNPs ) 的形成 nanoparticles 被扫描电子显微镜学被紫外可见的光谱学和他们的球形的形状证实。综合 nanoparticles 在精力为银和金牌给了强壮的信号散 X 光检查光谱学。分别地， CPAgNPs 和 CPAuNPs 是由散布粒子尺寸分析器的动态光决定了有 46.7 和 37.2 nm 的一种平均尺寸。Fourier 变换红外线的光谱学(FTIR ) 分析在 CPAgNPs 和 CPA…
In this work, a macroscopic non-linear constitutive model accounting for damage, inelastic strain and unilateral behavior is proposed for the 2D plain-woven C/Si C composite. A set of scalar damage variables and a new thermodynamic potential expression are introduced in the framework of continuum damage mechanics. In…