Electrolyte/Structure?Dependent Cocktail Mediation Enabling High?Rate/Low?Plateau Metal Sulfide Anodes for Sodium Storage

As promising anodes for sodium-ion batteries, metal sulfides ubiquitously suffer from low-rate and high-plateau issues, greatly hindering their application in f...     

一种城镇长租低压居民客户识别方法

出租房客户电费回收难等问题是长期困扰电力公司服务工作的痛点,预付费缴费模式能很好地解决这一问题。通过专家咨询法形成城镇长租低压居民客户分析指标,利用逻辑回归法构建城镇长租低压居民客户识别模型。结果表明,模型能准确定位出租房客户,较好地支撑预付费模式推广,辅助提高电费回收率。     

500 kV架空地线断股原因分析及对策

介绍了500kV百南Ⅱ线铝包钢良导体架空地线(LBGJ)断股的故障情况及处理过程,通过对故障原因进行分析,找出了造成LBGJ断股的原因,并提出了防止雷击造成LBGJ断股的技术措施。     

Transition Temperature of Bi_2Sr_2CaCu_2O_(8+x) Superconducting Films Prepared from Commercial Precursors

This paper have made a systematic study of the superconducting Bi-2212 phase transition temperature, which has a transition temperature (Tc) around 80-93 K, and depends on precise control of synthesis conditions, mainly including heat treatment parameters, oxygen partial pressure, and annealing temperature. Partial melting of the sample during preparation helps to raise its Tc. To elucidate the origin of this strong effect, the samples were heated with different melting process. The rapid changes in Tc valu...     

The microstructure and tensile property degradation of a gamma-TiAl alloy during isothermal and cyclic high temperature exposures

The microstructure and tensile property changes of a γTiAl-based alloy, Ti-47Al-2Cr-2Nb-0.15B, during isothermal and cyclic high temperature exposures have been investigated. Microstructure coarsening, including the fracture, dissolution and spheroidization of α₂ lamellae, is considered to be the main cause of the evident tensile property decreases of the alloy after isothermal and cyclic high temperature exposures. Dislocation emission near the broken lamellae is also an important phenomenon in the microstructure degradation during cyclic high temperature exposure, which originated from the thermal mismatch between α₂ and γ phases.     

Absence of a self-induced decay effect in Au

We report the results of an improved experiment aimed at determining whether the half-life (T_1/2) of ¹⁹⁸Au depends on the shape of the source. In this experiment, the half-lives of a gold sphere and a thin gold wire were measured after each had been irradiated in the NIST Center for Neutron Research. In comparison to an earlier version of this experiment, both the specific activities of the samples and their relative surface/volume ratios have been increased, leading to an improved test for the hypothesized self-induced decay (SID) effect. We find T_1/2(sphere)/T_1/2(wire)=(0.9993±0.0002), which is compatible with no SID effect.     

An Information Hiding Algorithm Based on Bitmap Resource of Portable Executable File

An information hiding algorithm is proposed, which hides information by embedding secret data into the palette of bitmap resources of portable executable （PE） files. This algorithm has higher security than some traditional ones because of integrating secret data and bitmap resources together. Through analyzing the principle of bitmap resources parsing in an operating system and the layer of resource data in PE files, a safe and useful solution is presented to solve two problems that bitmap resources are incorrectly analyzed and other resources data are confused in the process of data embedding. The feasibility and effectiveness of the proposed algorithm are confirmed through computer experiments.     

温敏型有机-无机杂化纳米微胶囊的渗透性能

将N-异丙基丙烯酰胺引入以正十六烷为模板的苯乙烯与甲基丙烯酸-3-三甲氧基硅丙酯细乳液共聚法制备纳米微胶囊的体系,得到一种温敏型有机-无机杂化纳米微胶囊。采用紫外可见分光光度计研究该种微胶囊在临界温度附近对甲酚红的载入和释放行为。结果表明N-异丙基丙烯酰胺的引入和温度均影响纳米微胶囊对甲酚红的载入与释放。微胶囊在临界温度以上具有一定渗透速率,临界温度以下渗透不明显,能较好地实现开-关式环境温敏型控制吸附和释放。