Materials Literature
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An artificial neural network （ANN） constitutive model and Johnson-Cook （J-C） model were developed for 7017 aluminium alloy based on high strain rate data generated from split Hopkinson pressure bar （SHPB） experiments at various temperatures. A neural network configuration consists of both training and validation, whic…
由纯 Ti 层和 TiBw/Ti 合成的层组成的新奇把压成薄片的 Ti-TiBw/Ti composites 被反应的热压成功地制作了。此处，二规模的结构形成了：纯 Ti 层和 TiBw/Ti 合成的层一起在宏规模构造了把压成薄片的结构。而且， TiBw 加强在 Ti 粒子附近被散布然后在微规模在 TiBw/Ti 合成的层形成了网络微观结构。把压成薄片的 Ti-TiBw/Ti composites 与网络相比在韧性与纯 Ti，和进一步的改进相比由于二规模的结构揭示高力量和高延伸的优异联合结构化的 composites。而且，把压成薄片的 composites 的有弹性的模量能被 H-S 上面的界限预言，它与试验性的价值一致。
The deep-blue organic electroluminescent devi- ces with the structure of ITO/Meo-TAD (20 nm)/NPB (10 nm)/DMPPP (3, 5, 10, 15 and 20 nm)/TPBi (10 nm)/Alq3 (20 nm)/LiF (0.5 nm)/Al were fabricated. The 1-(2,5-dime- thyl-4-(1-pyrenyl)phenyl)-pyrene (DMPPP) blue fluorescent dye was chosen as the single light emitting layer…
Kapok fiber corresponds to the seed hairs of the kapok tree(Ceiba pentandra), and is a typical cellulosic fiber with the features of thin cell wall, large lumen, low density and hydrophobic–oleophilic properties. As a type of renewable natural plant fiber, kapok fiber is abundant,biocompatible and biodegradable, and i…
In this work, the effects of ratio of monomer to cross-linker(AM/MBAM) and solid loading on the microstructure and mechanical properties of porous Si3N4 ceramics prepared by tert-butyl alcohol(TBA)-based gel-casting process were investigated. It was found that, when the ratio of monomer to crosslinker was 8, and the s…
A copper-bispyridylpyrrolide complex [Cu(PDPH)Cl](PDPH = 2,5-bis(2′-pyridyl)pyrrole) was synthesized and characterized. The complex crystallizes in the orthorhombic system with space group Pccn, a = 0.9016(3) nm, b = 1.0931(4) nm, c =2.5319(8) nm, and V = 2.4951(15) nm3. The copper center is situated in a square plana…
The change of oxidative balance and astrocyte in the cortex and hippocampus of aged SD rats were investigated by Western blotting,enzyme assay,immunofluorescence and HPLCMS.The data showed that curcumin reduced the level of MDA and 8-OHdG and enhanced the level of GSH and GCS activity,which indicated that curcumin inh…
Carboxymethyl-β-cyclodextrin( CM-β-CD) synthesized by SN2 substitution was employed successfully on the modification of the surface of the Fe3O4 magnetic nanoparticles( MNPs) using a layer-bylayer method. The as-prepared CM-β-CD functionalized magnetic nanocomposites( CM-β-CD-MNPs) were characterized by transmission e…
途径。脊梁结构和 MW 在上的效果融化 rheological 行为被两个调查小振幅摆动砍并且稳定砍大小。主人曲线用时间温度重叠原则被构造并且比较。在盖住的减少的频率范围， lgG~lg (? ?? ㈱? 猯灵 ?? ?? ㈱? 猯灵 ? 爠瑡潩椠 ? 偍 ?? 愠摮 ???? 挠畲瑳 ? 慶楲獥映潲 ?鰷钧 a？
The catalysts prepared by modifying SAPO-34 zeolite with alkali metals(Li, Na, K, Rb, Cs) in the way of incipient-wetness impregnation method were evaluated using methanol-olefin(MTO) reaction in the normal pressure continuous flowing fixed bed reactor. The structures of modified SAPO-34 catalysts were characterized b…
One cobalt coordinated polymer with 2-fold parallel interpenetration 3D architecture based on flexible 5-（imidazol-l-ylmethyl）isophthalate(L2-) as a main ligand and 4,4’-bipyridine（bpy）as a nitrogen-containing ancillary ligand,{[CoL（bpy）0.5（H2O）3]2}n（1）,has been obtained under hydrothermal conditions and characterized…
【Objective】To synthesize a novel Schiff base,5-( chloromethyl) salicylaldehyde-tyrosine and its maganesium( II) complex with methanol solvent. 【Method】The ligand and complex were characterized by elemental analysis,molar conductance,IR,UV and TG-DTA. Antibacterial activity,SOD activity of the complex and its interacti…
/c, 使结晶的 K 表演经历 iso 结构的阶段转变。作为温度减少，标题混合物的绝缘的测量不在阶段转变温度附近显示出重要变化。经典的氢契约在 293   在分子之间被发现； K 和 93  ；有类似的收拾行李的 K 安排。低温度和房间温度结构之间的最不同的差别是 hexafluorophosphate 阴离子的 order–disorder 转变，它可能是阶段转变的驱动力。
The meso-macroporous Fe-doped Cu O was prepared by a simple hydrothermal method combined with post-annealing. The samples were characterized by X-ray powder diffraction(XRD), scanning electron microscopy(SEM), Brunauer-Emmett-Teller N2 adsorption-desorption analyses and UV-vis diffuses reflectance spectroscopy. The Fe…
The molecular and crystal structure of the adduct NF3·BF3 was studied computationally using density functional theory. It shows that the adduct exists in the form of a complex but is not ionic. The heats of formation in the gas and the condensed phase of the adduct are −1266.09 and −1276.37 kJ·mol−1, respectively, whi…
In this paper, the Al Mg B14 and Al Mg B14–Ti B2 composites were synthesized by means of mechanical alloying and the field-activated and pressure-assisted synthesis process. The effect of temperature and pressure on the purity and property of products was discussed. The results show that the process of preparing Al Mg…
/g 的一个表面区域和 22.6 nm 的一种毛孔尺寸拥有 mesoporous 结构。最后的产品的 X 光检查衍射模式与六角形的结构证明了一篇纯 ZnO 作文的形成。而且， FTIR 分析证明 2-aminonicotinic 酸 ligand 山峰在锻烧步以后是不在的。弥漫的反射光谱学被用来决定生产 ZnO 的乐队差距精力，它是大约 3.19 eV。调查多孔的 ZnO nanostructure 的 photocatalytic 活动，一系列 photocatalytic 测试被执行移开刚果红作为代表性的有毒的偶氮的染料，从水的答案。结果证明产品能与高降级效率为废物水处理被用作有效光催化剂。
Different rare earth(RE) ions dopants were added into the SrAl2SiO7:Eu2+ phosphors in order to enhance the phosphorescence properties, and the effect of the RE ions including Yb3+, Ce3+, Nd3+, Dy3+ and Tm3+, was comparatively investigated. It was found that Nd3+ addition improved the phosphorescence properties obvious…
2 ?+?Fe 2 O 3 ?+?sucrose 和 O 是的 2 反应系统和喂的气体，分别地被用来准备空多相的陶器的 microspheres ( HMCM )吸收剂基于自我反应的熄灭技术。形态学，粒子尺寸分发，空结构和阶段作文被扫描电子显微镜(SEM ) 描绘， X 光检查衍射(XRD ) 和尺寸分析。结果证明熄灭的产品拥有他们的高形成范围的率，和大多数是空结构。由于自我爆炸，粒子尺寸在 40 和 70 之间 ? m。阶段作文包含艾尔 2 O 3 , Fe 3 O 4 , Fe 2 O 3 , Ba 2 Fe 14 O 22 , BaO 2 和 BaFe 4 O 7 。吸收的微波测试 HMCM 的最低反射率是 19 的表演 ?…
由测量 Nb 的扩大曲线，在不同冷却的适用的钢由使用 Gleeble-3800 thermomechanical 模拟器评价，与 metallographic 分析结合，不同阶段地区被决定。另外，在不同阶段地区的 Nb 的降水行为在极端快冷却条件下面被调查。试验性的结果显示出那采用合适的变丑温度，极端快冷却过程能在奥氏体阶段地区制止 Nb 的降水。更多的数量和更小的尺寸 Nb 猛抛能被控制极端快冷却的结束温度在铁酸盐或 bainite 阶段地区发现。随分别地在奥氏体，铁酸盐和 bainite 阶段地区保持时间的增加，降水，密度，和平均尺寸的体积部分猛抛将显然增加。与早极端的快冷却的结束温度的减少， Nb 的密度首先猛抛在铁酸盐阶段…