Materials Literature
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Acetone( CH3COCH3) /NaOH,ethanol( EtOH) /NaOH and other chemical reagents systems were used for pre-treating cellulose. The R-10 value and water retention value( VWR) were measured to evaluate their impacts on polymerization degree and accessibility of cellulose. The cellulose pretreated under the optimal condition wa…
这份报纸在绝缘体上在硅调查慢轻的繁殖宽槽 photonic 水晶波导(PCW ) 。二个设计计划被介绍，分别地依靠洞格子和槽的分散工程。模式模式和乐队图被 3D 飞机波浪扩大方法计算。然后，联合并且慢轻的繁殖在完整的 Mach-Zehnder 干涉仪(MZI ) 用有限差别时间领域方法被建模。结果显示出高振幅干扰穗和高联合效率。设备的制造和测量超过 50 与组索引导致慢轻的繁殖，当在也观察的乐队边附近的多重散布和局部性的模式时。这研究提供卓见因为在空核心槽的损失高组织索引波导。
这研究首先在实际的钢脱衣的表面上调查了裂缝。在 ANSYS 软件提出 Anand 模型，我们然后在成双转动的扔进程期间在类型 304 不锈钢的熔融的水池模仿了压力领域。在熔融的水池影响压力分发的参数详细被分析并且优化。在成双转动的扔以后，很多 transgranular 和 intergranular 裂缝在薄钢长带的表面上住了，并且跟随了一条曲折路径。在熔融的水池，应力在出口并且在压路机接触位置被提高。在出口的压力与增加扔速度和流的温度减少了。为了保证制作脱衣，扔的速度和流的温度的高质量，应该在钛 io 的 0.7 m/s 和 1520tion 上面被控制吗？
A commercial product of carbon nano-particles,Cabot MONACH 1300 pigment black（CMPB）,was studied for basic structural information and electrochemical performance in neutral aqueous electrolytes,aiming at applications in supercapacitors.As confirmed by SEM and HRTEM,the CMPB had a hierarchical structure,containing basic…
The early Bauschinger effect in nanocrystalline Al thin films with different thicknesses and microstructural orientations was investigated using large-scale atomistic simulations. The simulation results indicate that the microstructural orientation heterogeneity has a significant influence on the early Bauschinger eff…
这份报纸基于线性二次的管理者(LQR ) 介绍一种技术从独立质子交换膜(PEM ) 在负担点对负担变化控制输出电压为组住房使用的燃料房间发电厂(FCPP ) 。控制器由最小化一个费用函数，和 AC 输出电压的阶段角度从 FCPP 控制活跃、反应的力量输出匹配终端负担修改最佳的获得 k i。控制行动从终端负担，产量电压和燃料房间反馈电流基于反馈信号。为模拟选择的拓扑学由 45 kW 质子交换膜燃料房间(PEMFC ) 组成，增加类型 DC/DC 变换器，三阶段的 DC/AC inverter 由一个 LC 过滤器列在后面。建议控制策略在低交换频率(2 kHz ) 操作了的模拟结果表演与低全部的泛音失真(THD ) 提供好表演对负担变…
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…