Materials Literature
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包含 thiadiazole 单位的高度折射、透明的聚酰胺被开发了。这些聚合物被 4,4-(1,3,4-thiadiazole-2,5-thio ) 的 polycondensation 反应准备二度(甲又) dibenzoyl 氯化物(TDTBM-DC ) 和包含了 thioether 的肼(-S-) 和 sulfone 单位。他们证明象一只相对高的杯子那样的好热稳定性转移 206233 orovSmirnov 和 Chi 平方测试的温度。在那里的结果是 198 (124 个男孩) 为学习合格的孩子。肿瘤的多数是 infratentorial (n=134 ) ，并且剩余的是 supratentorial (n=60 ) 并且针…
Microspherical MFI mesoporous zeolites (MMZ-5) with different mesopore volumes and similar silica-alumina ratios were prepared by the bond-blocking principle and confirmed by physical methods. The zeolite materials with high external surface areas contained inter- and intra-crystalline mesostructures. NH3-TPD and in s…
FeCrAl(f)/HA biological functionally gradient materials(FGMs) were successfully fabricated by the hot pressing technique.Scanning electron microscope(SEM),energy dispersive spectrometer(EDS) and bending strength test machine were utilized to characterize the microstructure,component,mechanical properties and the forma…
The Author(s) 2014. This article is published with open access at Springerlink.com Abstract A very safe and environmentally friendly solid- state material for bioremediation was prepared using a combination of Aspergillus oryzae and poly(e-caprolac- tone) (PCL), a porous biodegradable polymer. The novel material was c…
Here we propose a thermoresponsive polymer PNIPAM modulated fluorescence resonance energy transfer (FRET) system to enhance the temperature sensitivity of upconversion nanophosphors (UCNPs). By utilizing red/near-infrared dual emitting NaLuF4: Mn2+, Ln(3+) (Ln(3+) = Yb3+, Er3+, Tm3+) UCNPs as the energy donor and Au n…
In this study we show GaMnAs preparation by Mn implantation in GaAs followed by helium ion beam induced epitaxial crystallization annealing. The characteristics of the Mn-implanted layer were investigated by X-ray diffraction, and transmission electron microscopy. The magnetic nature of the Mn-implanted layer was inve…
以便在 15CrNbTi 的高温度的疲劳行为上理解瞬间元素的效果以铁酸盐为主要成的不锈钢，控制压力的疲劳测试为 15CrNbTi 和 15Cr0.5MoNbTi 被执行了在 800 点的以铁酸盐为主要成的不锈钢
Electronic structure calculations based on Density Functional Theory (DFT) have been remarkably successful in describing material properties and behavior. In conventional formulations and implementations of DFT, the orthogonality constraint on the orbitals results in a cubic-scaling with respect to the number of atoms…
The nucleophilic substitution reaction between the chloromethyl group of chloromethylated polystyrene(CMPS) and phenolic hydroxyl group of 3-nitro-4-hydroxy benzoic acid(NHBA) was conducted,and the nitro-benzoic acid(NBA) ligand was bonded on the side chains of polystyrene(PS) to yield nitro benzoic acid functionaliza…
应用相似稳固的氧化物燃料房间和传感器逐渐地要求可能性以铜锌金焊接陶艺到有到高温度和氧化气氛的一个好电阻的金属。通常使用基于的银活跃 filler 金属不能完成这些要求，如果比 600 高的申请温度吗？
To optimize the magnetic properties of nanocomposite Nd9Fe85B6 magnets, the as-quenched ribbons with different microstructures were prepared at six wheel velocities from 10 to 30 m s-1through rapid quenching,followed by a series of annealing treatments at 550–800 °C for 5–10 min. It is found that both the large initia…
碳 nanomaterials (CNM ) 为下次辈份的电子学正在推动候选人。在这评论，我们在从 ab-initio 方法获得的基于碳的分子的连接的传导性上提供最近的结果的微型概述。当在分子的连接的 nanoelectrodes 和分子的材料被讨论， CNM 使用了。包括使用 CNM 认识到的 nanomechanically 控制的分子的传导力开关，否定微分抵抗设备，和电子整流器的功能被表明了。
KMn8O16 nanorods were synthesized via a reflux method, and polyaniline-coated KMn8O16 nano- rods were prepared via oxidative polymerization of aniline in acidic medium. The microstructures and morphologies of the KMn8O16 nanorods and PANI- coated KMn8O16 nanorods were characterized using powder X-ray diffraction, ther…
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…