Effect of Mo on High-Temperature Fatigue Behavior of 15CrNbTi Ferritic Stainless Steel
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
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Overcoming the cubic-scaling bottleneck: linear-scaling density functional theory
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…
Synthesis of Benzoic Acid Derivative-Bonded Polystyrene Ligand and Photoluminescence Properties of Its Complex with Eu(III) Ion
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…
Wide gap active brazing of ceramic-to-metal-joints for high temperature applications
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？
Magnetic properties optimization of nanocomposite Nd9Fe85B6 magnets by controlling microstructure of as-quenched ribbons
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…
Conductivity of carbon-based molecular junctions from ab-initio methods
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。
Effects of polyaniline coating of cryptomelane-type KMn 8 O 16 on electrochemical performance for lithium-ion batteries
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…
Recent progress in ZnO-based heterojunction ultraviole light-emitting devices
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…
The dehydration behavior and non-isothermal dehydration kinetics of donepezil hydrochloride monohydrate （Form I）
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…
Processing and mechanical properties of network ceramic/steel composites by pressureless infiltration
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。
Fundamental processes of plasma and reactive gas surface treatment for the recovery of hydrogen isotopes from carbon co-deposits in fusion devices
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…
The use of contrast-enhanced ultrasound in the treatment of limb pseudoaneurysm with percutaneous prothrombin injection
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…
New advances in the mesenchymal stem cells therapy against skin flaps necrosis
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…
Controlled Synthesis of SnO 2 with Hierarchical Micro/Nano Structure
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…
Effect of acicular ferrite on banded structures in low-carbon microalloyed steel
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 #
Helix-sense-selective radical polymerization of bulky styrenic monomers: chiral induction and liquid crystallinity
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…
Supercapacitors based on high-surface-area graphene
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…
Research progress in Mg-based hydrogen storage alloys
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。
CONSTITUTIVE MODELING OF ROLLED SHAPE MEMORY ALLOY SHEETS TAKING INTO ACCOUNT PRE-TEXTURE AND ANISOTROPIC HARDENING
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…
Electrochemical Corrosion Behavior of Zn and 55%Al-Zn Alloy Coatings by Salt Sptay Test
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…