Materials Literature
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By incorporating three organic carboxylic acids with different lengths, fumaric (FUM), 1,4-benzenedicarboxylate (BDC) and 4,4′-biphenyl-dicarboxylate (BPDC) acids, three novel Hf-based metal-organic frameworks (MOFs), Hf-FUM, Hf-BDC and Hf-BPDC, were synthesized using a solvothermal method combined with conventional e…
研究了4种带有不同末端基团的聚(3-丁基噻吩)(P3BT)的光电性能。结果表明,末端基团对P3BT的结晶有一定的抑制作用,可以改变P3BT的表面能,从而有效调控P3BT∶PCBM共混体系相容性以及薄膜的形貌,并影响以P3BT为给体材料的聚合物光伏器件的性能。其中,带有较短烷基链末端基团的烯丙基封端P3BT具有较高的结晶性,与PCBM具有适中的相容性,使得光伏器件的光敏层能够形成理想的微相分离结构,器件效率可以达到3.1%,较传统的溴封端P3BT器件效率提升35%以上。 更多还原
1 Introduction China has very abundant liquid mineral resources.Especially,the brine resources in the west of Sichuan Basin are pushed into the first place in China,whose K and B contents are unusually high.These rare liquid mineral resources have very good exploitation prospect(Lin,2001;2006).Generally speaking,phase…
Alterations in embryonic neural stem cells play crucial roles in the pathogenesis of amyotrophic lateral sclerosis. We hypothesized that embryonic neural stem cells from SOD1G93 A individuals might be more susceptible to oxidative injury, resulting in a propensity for neurodegeneration at later stages. In this study,…
基于的维护(CBM ) 发给为机器健康维护的即时监视的新挑战的状况。穿州的监视由于获得工具的联机信息的缺乏成为 CBM 的瓶颈。有特征的 wear 机制判断穿碎片广泛地被采用了在离线穿分析；然而，联机穿机制描述遗体一个大问题。在这份报纸，经由联机 ferrograph 图象的 wear 机制鉴定被学习。为了获得，孤立在一幅联机 ferrograph 图象穿碎片，免职机制在联机 ferrograph 穿碎片传感器被学习。学习结果表演穿碎片链由于本地磁场在附近是主要形态学扔穿碎片。因此，一条改进采样线路为联机穿碎片免职与自我调整免职时间的焦点被设计。作为结果，孤立穿碎片能在一幅联机图象被获得，它便于特征的特征抽取穿碎片。由指分析 fe…
According to literature there are few and very old investigations about the relationship between high performance yarn twist, which are very used in technical textiles, and its mechanical properties. Therefore, this study aims to determine the influence of twist on the tensile strength, elongation and tenacity of thre…
Nanoparticles 为 bioimaging 和 biolabeling 应用有庞大的潜力，在哪个常规有机性地基于荧光灯标签降级并且没能提供长期的追踪。因此，途径的开发做荧光灯可溶的探针水和标签房间有效为很生物的应用程序是合乎需要的。这里，我们为蛋白质标记作为一根探针从 3-aminopropyltriethoxysilane (APTES ) 在自我装配的 nanodots (沙) 的制造和描述上报导。我们显示出那荧光灯沙探针在水的环境展出明亮的光致发光和 biocompatibility。在用 hepatoma 房间线标记的蛋白质和糖类的 vitro 成像选择用分别地与卵白素和半乳糖结合的 biocompatible…
2 Mg 3 Zn 3 )阶段也不 S (艾尔 2 CuMg )阶段在当演员组合金发现。计算阶段部件根据 Scheil 模型的意见与试验性的结果一致。在在 460 点的 homogenization 期间
Fe3O4 is an attractive conversion reactionbased anode material with high theoretical capacity(928 mA h g-1).However,the poor cycling and rate performance hinder its applications in Li-ion batteries.In this work,we report an effective strategy to synthesize threedimensionally macroporous graphene-supported Fe3O4hybrid…
A simple hydrothermal process followed by heat treatment was applied to the preparation of spinel Li1.05Mn1.95O4. In this process, electrolytic manganese dioxide(EMD) and LiOH·H2O were used as starting materials. The physiochemical properties of the synthesized samples were investigated by thermogravimetry-differentia…
The ultra-low density wood-based foaming material(ULDM),density in 0.03~0.09g·cm-3, was prepared by liquid foaming process.Four inorganic components were used as fire retardants to prepare flame retardant ULDM,including boron,nitrogen-phosphorus,silicon and halogen type.By means of cone calorimeter,the ULDM were syste…
To optimize the existing slurry for abrasive-free polishing(AFP)of hard disk substrate,a water-soluble free radical initiator,2,2-azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride(AIBI)is introduced to the H2O2-based slurry.The polishing results show that,the material removal rate(MRR)of hard disk substrate polished…
ZrN- SiAlON composite materials were synthesized at 1 550 ℃ for 6 h via a carbothermal reduction nitridation route using fly ash( ≤74 μm),zircon( ≤44 μm)and active carbon as starting materials. The processed ZrN- SiAlON composite micropowders were mixed with polyvinyl alcohol as binder to prepare ZrN( ZrON)-SiAlON com…
Computer simulation with Monte Carlo is an important tool to investigate the function and equilibrium properties of many biological and soft matter materials solvable in solvents.The appropriate treatment of long-range electrostatic interaction is essential for these charged systems,but remains a challenging problem f…
银 nanoparticles (AgNPs ) 的物理、化学、生物化学的性质在很大程度上取决于他们位于他们的表面的尺寸，形状，尺寸分发，和 stabilizers。这研究集中了于二典型 stabilizers，也就是柠檬酸盐(市民) ，由静电的排斥保护 nanoparticles 的低分子的离子，和 polyvinylpyrrolidone (PVP ) ，由位的稳定保护 nanoparticles 的吸水的、中立、高分子的聚合物。自然 bacterioplankton 从发育营养正常促进剂被收集，闹市区湖并且暴露了 AgNPs-PVP 和 AgNPs 市民的集中(0.15 mg/L ) 到五。回答在暴露的 1， 3， 5 和…
A composite coating with inner and outer layers was prepared for the thermal protection of woven silica fiber fabrics. Using a sol mixture of a silica sol and AlF3/SiO2 particles mixed in the stoichiometric molar ratio for mullite,hollow silica spheres and short mullite fibers were added to the inner layer and outer l…
The vapor phase equilibrium analysis has been carried out for the Sb–S–O–H quarternary system using a Constrained Chemical Potential Method (CCPM). A total 24 species in vapor phase and 9 condens able constituents have been considered. The resulting data for the system have been plotted on Gibbs triangles as a functio…
Calixarene liquid crystals were important part among calixarene derivatives. The synthesis and mesomorphic properties of all kinds of calixarene liquid crystala have been discussed and reviewed. There are two methods to prepare calixarene liquid crystals. One way is to introduce the corre- sponding functional groups w…
卷的试管(CT ) 的复杂工作状况钢要求高力量和收益力量(YS ) 的低比率到张力的力量(TS ) 。合理微观结构控制是 CT 钢的一个关键问题。滚动控制并且使实验凉下来控制被二种测试的钢与不同化学作文执行发展非熄灭并且 tempered CT80 钢。在不同过程的测试的钢的机械性质都在对 CT80 的性质要求的好同意。瞬间和 Nb 内容增加改进针状的铁酸盐和 martensiteaustenite (麻省) 的转变岛。好 M/A 岛增加 TS 和 YS/TS 的减少比率的 4 vol% 。冷却的率增加也改进针状的铁酸盐转变并且提高 TS，但是在 YS/TS 的比率上有小效果。满足高力量和 YS/TS 的低比率的要求， CT80…
设计合成和表征了新型叠氮基官能团化的SIPr(bis[2,6-diisopropylphenyl]imidazolin-2-ylidene)氮杂卡宾铜配合物．这种氮杂卡宾铜配合物既可作为反应底物又可作为催化剂进行自催化的叠氮炔烃３＋２环加成反应(CuAAC. 通过这种配合物与炔烃的简单自催化反应，在常温常压条件下合成出了一种新型的基于氮杂卡宾铜配合物的超分枝l聚合物r，并通过固体核磁、红外光谱、元素分析、原子吸收光谱和Ｘ射线光电子能谱对其进行了完整的表征．