Materials Literature
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Because of its diversity, easy modification and other unique properties, conjugated organic oligomers have been widely used in the design and synthesis of molecular wires. The photoelectric property and self-assembly of single-moleculars are the two critical points in the research of conjugated organic molecules. The…
。然而，在更厚的板中的变粗的谷物使裂缝偏斜并且由于表面粗糙提高的闭合效果增加了。为两个盘子，在破裂，表面使平凡紧张遭到了，到 intergranular dimpled 骨折的从 transgranular dimpled 骨折的转变在破裂过程期间被观察。
A scorpion-shaped di-NBD(4-substituted-7-nitrobenzoxadiazole) derivative of cholesterol(Chol-2NBD) was designed and synthesized. The gelation behaviors of the compound in a series of single and mixed liquids were tested. It was shown that the compound is an effective gelator for mixture liquids of THF and benzene at r…
2 -temperature 规划了减小，NH3温度规划了解吸附作用，合作化学吸着，集体 spetrography ，扫描电子显微镜学( SEM )， Boehm 滴定，并且 Fourier 变换红外线的光谱学( FTIR )。SEM 结果证明碳材料与 HNO 在 functionalization 以后保留了象结构一样的一根针 3 。Boehm 滴定， FTIR，和赌注结果证实 HNO 3 functionalized 材料有中等酸味，表面功能的组，和 mesoporosity 分别地。生产 NAFSAC 有一个惰性的性质，展出了水池效果和很少金属支持相互作用，并且包含了功能的组。所有哪个为 NiMo hydrotreating…
Nanocomposite materials on the basis of ultra high molecular weight polyethylene and multi layer carbon nanotubes (MCNTs), the concentration of which varied from 0.1 to 1 wt %, were prepared by combined deposition from solution. The presence of carbon nanotubes in the polymer matrix leads to struc tural changes strong…
We recently developed stretchable electronic devices using several types of one-dimensional (1D) nanostructures such as silicon nanowires (SiNWs), AgNWs, and carbon nanotubes (CNTs). Several advantages of 1D nanostructures for such applications include: (i) the 1D nanostructures possess excellent electric and mechanic…
We investigated the technological parameters in preparation of collagen polypeptide chelated calcium( CPCC) from fishbone of silver carp( Hypophthalmichthys molitrix) which were chelated by collagen polypeptide hydrolysates( CPH),hydrolyzed by flavourzyme and calcium extract( CE),and extracted with lactic acid from fi…
) 从 0.016 ～ 0.030   增加了； mg/kWh。Fluoranthene 和分核有最大的减少， 91.1% 和 88.4% 分别地。增加二戒指、三戒指与 DPF 哼显示忍受燃料的催化剂引起了一些煤气阶段哼在粒子上吸附。这研究的结果扩展在柴油机引擎 unregulated 排出物上使用一个微粒过滤器和基于 Fe 的忍受燃料的催化剂的效果的知识。
Based on the pore size design of microporous aggregate by numerical simulation applying porous media model,α-Al2O3 micropowder,industrial Al2O3 fine powder,α-Al2O3 micropowder + Ca CO3 fine powder were used as starting materials,respectively,to prepare three microporous corundum aggregates specimens,named as A1,A2 and…
The reduction of 1,4-benzoquinone(BQ) on Pt electrode was investigated in various ionic liquids by cyclic voltammetry(CV). Over a wide range of scan rates,two couples of redox peaks were clearly observed in cyclic voltammogram,showing a quasi reversible diffusion process of BQ with the two-step electrochemical reducti…
Two strains of Aphanizomenon flos-aquae were isolated from spring cyanobacterial blooms in Haigeng Bay which located in the northern part of Lake Dianchi.Both the growth characteristics and heterocyst formation as well as nitrogen fixation ability of A.flos-aquae were investigated under different low concentrations of…
AIM: To investigate the impact of titanium dioxide nanoparticles(Ti O2NPs) on embryonic development and retinal neurogenesis.METHODS: The agglomeration and sedimentation of Ti O2 NPs solutions at different dilutions were observed,and the ultraviolet-visible spectra of their supernatants were measured. Zebrafish embryo…
A 0.2C-1.5Mn-1.5Si-0.6Cr-0.05Nb (wt%) 钢被过程并且传统的熄灭和 tempering (Q&T ) 为比较处理的新奇 quenching-partitioning-tempering (Q-P-T ) 分别地对待。X 光检查衍射分析显示 Q-P-T 钢有大约 10% 保留的奥氏体，但是 Q&T 钢几乎没有一个。随从 7 nitic 的压缩紧张率的增加，铁酸盐，而是它与温度增加展出力量的更慢的减少。在小粒的 bainite 和 bainitic 铁酸盐的脱臼密度在高温度经由恢复和再结晶减少。然而， bainite 再热什么时候低于 600 在温度被执行？？
加强的 Nanoscaled 铝氮化物(AlN ) 分散 2024 铝合金用 Al-Mg-Cu 协议部分是在流动的氮气体的 nitrided 的一条新奇在途径被制作。协议被 sintering 和热挤出随后巩固。微观结构和材料的机械性质 preliminarily 被调查。传播电子显微镜学和 X 光检查衍射结果表明 AlN 粒子被 Al-Mg-Cu 协议的 nitridation 产生。材料在热挤出和热处理以后展出了优秀机械性质。最终张力并且与 T6 热处理包含 8.92vol% AlN 的渗出的样品的收益力量分别地是 675 和 573 MPa。
YMn2O5 nanorods were synthesized through a modified polyacrylamide gel route. The synthesis strategy in this work is based on a sol-gel process using a polyacrylamide gel method in which oxalic acid, citric acid or tartaric acid is employed as the chelating agent. In the gel routes, oxalic acid was used as a carboxyl…
The morphology and composition of living diatoms were explored at different heating rates,in which the marine diatom Navicula sp.was selected as experimental materials.First,the frustules from living diatoms were cleaned by hydrochloric acid to remove metal oxide and other inorganic salts.After that,chemically purifie…
Core-shell structured nanospheres with mesoporous silica shell and Ni core(denoted as Ni@meso-SiO2) are prepared through a three-step process. Monodispersed Ni precursors are first prepared, and then coated with mesoporous SiO2. Final Ni@meso-SiO2spheres are obtained after calcination. The products are characterized b…
After EAST_2012 campaign, the updated di- vertor (upper part) has been designed and installed in EAST. The updated upper divertor is designed as cassette structure like ITER divertor. The structure analysis has been carried out for divertor cassette design in the worst case loads of disruption with the maximum 1 MA of…
Ni /SiC and Ni-Ybx /SiC( x = 2%,4%,6%,10%) catalysts were prepared by the impregnation method,and the performances of catalysts in the carbon dioxide reforming of methane were studied in a fixedbed reactor. The catalysts were characterized by BET,ICP-AES,XRD,H2-TPR,TG-DTA,XPS and TEM techniques. The experimental resul…
Two coordination polymers, namely {[Ni(cpna)(H2biim)(H2O)]·H2O}n(1) and {[Mn(cpna)(H2biim)]·H2O}n(2)(H2cpna = 5-(2'-carboxylphenyl) nicotic acid, H2biim = 2,2'-biimidazole),have been hydrothermally synthesized and characterized by elemental analysis, IR, TG, magnetic properties, and single-crystal X-ray diffraction. C…