基于碱金属离子嵌/脱的氟磷酸盐材料(Li_2MPO_4F,M=Fe,Co,Mn)因本身结构稳定,安全性能好,工作电压高,能够满足当前对锂电池正极材料高容量与高能量密度的要求,其中,Li_2CoPO_4F在当前可行性正极材料中,具备最高的工作电压平台(4.8 V vs.Li/Li~+)、更大理论比容量287 mAh g~(-1)而备受关注。本文对Li_2CoPO_4F材料主要采取筛选和优化合成方式、
A novel kind of compact three-port power divider with full bandwidth is proposed in the paper.The design and simulated results show that the novel power div
90~183GHz radiometer,a millimeter wave temperature and humidity sounder of which the size and weight have been substantially reduced,is capable of measuring
黄斑肥螈（Pachytriton xanthospilos Wu，Wang，and Hanken，2012）隶属两栖纲、有尾目、蝾螈科、肥螈属，分布于湖南省与广东省交界的南岭山脉，在其它地方还未见报道，是中国特有的珍稀物
In this presentation,we experimentally demonstrate a broadband amplitude modulator based on deposition of graphene on germanium(GOG)in the terahertz(THz)reg
Broadband graphene modulators are wildly used in the terahertz(THz)spectral band.We are used to doping graphene at the time of last step fabricating THz mod
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书画,是历代文房具中的重要内容。《红楼梦》中曾说:“偌大景致,若干亭榭,无字标题,也觉寥落无趣,任有花柳山水,也断不能生色。”一所文房中,置以种种文具,当然也以书画最能
Ice desorption is the main mechanism causing the release of complex molecules from solid to gas phase in star forming regions.A Schottky diode millimetre-wa