Optical links are moving to higher and higher transmission speeds while shrinking to shorter and shorter ranges where op......

该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

Nominal (Li0.5Ce0.5)x(Na0.5Bi0.5)(1-x)Na0.5Bi4.5Ti5O18 composite ceramics were fabricated using conventional solid-state......

利用第一性原理系统地研究了RbH_2PO_4晶格优化结构、总的和分的态密度、电荷密度分布.我们发现氧原子和Rb,H原子的杂化形成了两种......

Sol-gel-derived nano-powders of lead magnesium niobate and lead titanate solid solutions (PMN-PT or ration process were ......