Materials Literature
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Wide bandgap(3.37 eV) and high excitonbinding energy of ZnO(60 meV) make it a promising candidate for ultraviolet light-emitting diodes(LEDs) and low-threshold lasing diodes(LDs). However, the difficulty in producing stable and reproducible high-quality p-type ZnO has hindered the development of ZnO p–n homojunction L…
donepezil hydrochloride 一水化物的粉末(形式我) 经历了同形的脱水，没有改变它的粉末 X 光检查模式，失去在 90% 和 10% 相对湿度(RH ) 之间的 3% w/w 水。在 10% RH 下面，另外的脱水与在一水化物状态和一个使脱水的状态之间的可逆阶段转变一起发生了，与到 0% RH 的 4.0% w/w 损失。方法的联合被用来理解发生在 desolvation 过程期间的结构的变化，包括动态蒸汽吸着大小，热分析和粉末 X 光检查衍射。我显示出的形式隧道水合物的特征，行为其非等温的脱水在二继续，走：(1 ) 非结晶的水的损失在表面上吸附了，并且(2 ) 在隧道的一水晶的水的损失。使脱水的形式我是类似于…
合成是 520 MPa 并且 11.2% 分别地。烦恼穿 MMC 的机制主要被执行在氧化与更低的负担 / 磨擦频率和占优势的氧化穿模式和忽视穿粘合剂穿并且磨料与更高的负担 / 磨擦频率穿多重模式。而且，结合的渗入和连续三维的互连的陶器的骨骼在结合的接口和优秀机械性质的稳定性起一个重要作用。
The use of carbon-based plasma-facing wall components offers many advantages for plasma operation in magnetic confinement nuclear fusion devices. However, through reactions with the hydrogen based fusion plasma, carbon forms amorphous hydrogenated carbon co-deposits (a-C:H) in the vacuum vessels. If tritium is used to…
Objective To explore the safety and effectiveness of contrast-enhanced ultrasound(CEUS)-guided percutaneous injection of prothrombin for the treatment of limb pseudoaneurysm(PSA).Methods Sixteen cases of lower limb pseudoaneurysms were treated with contrast-enhanced ultrasound(CEUS)-guided percutaneous injection of pr…
Mesenchymal stem cells(MSCs), multipotential cells that reside within the bone marrow, can be induced to differentiate into various cells, such as osteoblasts, adipocytes, chondrocytes, vascular endothelial progenitor cells, and other cell types. MSCs are being widely studied as potential cell therapy agents due to th…
Preparing SnO2 with hierarchical micro/nano structures by hydrothermal,coordination,templating and electrochemical deposition methods and their mechanisms are investigated.The result shows that the echinus-like SnO2 prepared by Method 1 is a typical Ostwald mechanism that develops from internally to externally.The cab…
在有 Mn 分离的低碳的 microalloyed 钢的 banded 结构上的针状的铁酸盐(AF ) 的效果被 dilatometry 和显微镜的观察在等温的转变和连续冷却过程期间学习。关于等温的转变过程，在 550 点的标本 isothermed #
Eight chiral vinylterphenyl monomers,(+)-2,5-bis{4′-[(S)-1″-methylpropyloxy]phenyl}styrene(Ia),(+)-2,5-bis{4′-[(S)-2″-methylbutyloxy]phenyl}styrene(Ib),(+)-2,5-bis{4′-[(S)-3″-methylpentyloxy]phenyl}styrene(Ic),(+)-2,5-bis{4′-[(S)-4″-methylhexyloxy]phenyl}styrene(Id),(?)-2,5-bis{4′-[(R)-1″-methylpropyloxy]phenyl}styren…
Exfoliated graphite oxide was prepared by an improved Hummers method and was then reduced to graphene with hydrazine in the presence of ammonium hydroxide. N2 adsorption–desorption measurement showed that graphene so obtained had a specif- ic surface area as high as 818 m2/g. Galvanostatic charge/discharge curves demo…
镁和基于镁的合金氢化物在地球外壳中由于高氢能力和富有的储备仍然是吸引人的氢存储材料。在为材料的实际温度的氢化物和懒惰 hydriding/dehydriding 动力学的高稳定性与另外的元素驾驶了研究人员进 alloying，用不同准备技术，用催化剂和改进氢吸收 / 解吸附作用性质的薄电影氢化物。在这评论，的这些途径和他们的效果的发展热力学并且镁和基于镁的合金氢化物的动力学性质是在细节的 descript。
绘画或滚动的过程赋予多晶体形状记忆合金以一块结晶的质地，它能导致宏观的 anisotropy。这个工作的主要目的是开发一个组成的模型预言形状存储器合金表的 thermomechanical 行为，它说明结晶的质地。全部的宏观的紧张在等温的状况下面被分解成有弹性的紧张和宏转变紧张。就在本地谷物和结晶的质地的取向分发函数的转变紧张而言，宏转变紧张和粗糙的多晶体形状存储器合金的有效有弹性的模量被使用张肌表达式开发。运动方程被建立在给定的应力下面计算马氏体转变的体积部分。而且，山的二次的模型为各向异性的转变粗糙的 SMA 表变硬被开发。所有计算结果在对试验性的数据的好同意，它证明现在的模型罐头精确地描述粗糙的形状记忆合金表的宏各向异性的行…
The corrosion behavior of Zn and 55%Al-Zn alloy coatings was studied by salt spray test which is designed to simulate the practical service situation, coupling with measurments of polarization curves and electrochemical impedance spectroscopy(EIS) as well. While corrosion products were characterized by XRD. The result…
This paper describes orientation dependence of magnetic properties on undeformed and deformed low carbon steel. Magnetic parameters have no changes for undeformed specimen when the direction of applied field changes, while the coercive force decreases and the inductance, the resistance increases with increasing the an…
The effect of the amount of precipitant ammonia on the Cu0/Cu+ratio of Cu/Si O2 prepared by the deposition–precipitation method is investigated. Species at different preparation stages, resulted from the amount of ammonia used, are identified by the XRD and FTIR techniques. Chrysocolla together with either copper nitr…
The CuSO4-catalyzed surface-initiated conventional radical graft poly- merization of electron-deficient monomers such as N,N-dimethylacryamide (DMAAm) was carried out from amino-functionalized SiO2 nanoparticles (SiO2- NH2) to directly prepare hybrid SiO2 nanoparticles (SiNPs) chemically grafted with functional poly(N…
Cylindrospermopsis raciborskii N8 strain was isolated from a sub-tropical reservoir in southern China and cultured with BG-11 culture medium. The effects of temperature,irradiance and nitrate on the growth of this strain were evaluated by a designed experiment with gradients of temperature( 12,16,20,24,28,32℃),irradia…
In this work, we have developed a novel visual Hg 2? sensor in aqueous solution using unmodified Au@Ag core-shell nanoparticles at room temperature, based on a redox reaction between Ag-shell and Hg 2? . The prepared Au@Ag core-shell nanoparticles exhibited good mono- dispersity. In the presence of Hg 2? ,H g 2? was r…
The precipitates and hydrogen permeation behavior in three kinds of hot rolled low carbon heavy plate steels for enameling were analyzed;then,both sides of the steels were enameled.The experimental results show that a large amount of coarse Ti4C2S2 and fine Ti(C,N) particles exist in the optimized Ti-bearing steel,qui…
A coordination polymer formulated as([Mn2L（N3）4]-2H2O}n（1）(L= 1,4-bis（pyridinil-3-carboxylato）-l,4-dimethylbenzene]was synthesized and structurally and magnetically characterized.The uniform Mn（II）chains with mixed（μ-EO-N3）2（μ-COO） triple bridges（EO = end-on） are linked by L ligands to generate a2-fold interpenetratin…