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Self-ordering of the cell arrangement of the anodic porous alumina was prepared in oxalic acid solution at a constant po......
In this paper, we present the finding that periodic structural defects(PSDs) along a Bragg grating can shift the Bragg w......
We demonstrate that ferroferric-oxide(Fe_3O_4) nanoparticles exhibit nonlinear saturable absorption property at1.55 μm,......
We fabricate the Tm-doped double cladding silica fiber by using the vapor-solution hybrid-doping method,then build up an......
High Nb containing TiAl alloy was fabricated in argon atmosphere by reactive hot pressing process. Reaction mechanism wa......
The micropowder injection molding technology was investigated to fabricate the microsized gear wheels on a conventional ......
The novel material of photonic crystal makes it possible to control a photon, and the photonic integration will have bre......
Ultraprecision grinding is an important approach to efficiently fabricate large complex optical mirrors, and five-axis g......
A miniaturized surface plasmon resonance (SPR) chip has been developed for biomedical and chem-ical analysis with low co......
本文从时间、假设、遗憾等七个方面,对法语中表达这些概念的部分词和词组应该使用什么时态和语式进行解析.指出规范的习惯用法,对......
文学是想象力的产物,虚构的自由是上天赋予写作者的权利。写作提供的自由以虚拟的方式达成人们的愿望,实现他们的梦想。写作状态是一......
研究性学习作为综合实践活动课,是一种由学生主体自由自觉活动的学习方式.其旨是要改变学生主体被动接受为主动探求学习,培养学生......
模仿是人类通过符号与现实相联结的一种基本行为,随着人类社会的发展和科技的进步,这一行为也在不同的环境中发生着变化。在科技发达......
本文预期达到的目标是通过对换热器主要部件进行具体的制造工艺规程的设计,对设备有进一步的了解。......
通过合理布置装配平台,选用吊装方案,解决了体育馆钢结构桁架不能在工厂拼装,不允许高空装,又不可能使用大型起重机吊装的大跨度圆钢管......
SCK原寸系统以钢结构加工详图为依据,把所有的计算、思考、工艺的实施方案按实际尺寸1:1放样完成,使得生产员工拿到原寸资料就知道做......
材料主晶相的细微化是提高材料性能的有效途径。在相关理论的指导下,笔者结合科研实验和长期的生产实践,总结出一些制备微晶刚玉瓷的......
Bismuth selenide(Bi2Se3)nanostructures have been synthesized via chemical vapor deposition(CVD)at different temperatures......