本文提出了一种三效催化器失效被动式监测策略,并给出了催化器劣化阈值的标定方法.这种策略不会对排放结果产生任何影响,且监测工......

口腔感觉异常征包括灼口综合征、口干症及味觉异常。该病发病率和就诊率逐年增加，已成为不容忽视的一类口腔疾病，但其病因和诊断方法......

A Deep Draft Semi-submersible(DDS) under certain flow conditions could be subjected to Vortex-Induced Motions(VIM), whic......

Strontium was introduced into CeO2-ZrO2 mixed oxides (CZ) by doping and impregnation methods,and then Pt was impregnated......

基于正交投影的校正算法是近年来在光谱处理上显得较活跃的一种方法。本文介绍了基于正交投影的校正算法的基本原理,并对S.Wold、F......

设计了一种新型的表面辐射内腔太赫兹波参量振荡器,交叉谐振腔结构允许增益介质放置在泵浦光谐振腔内,使用浅表垂直辐射结构能够从......

The unsteady flow of viscoelastic fluid in a cylindrical pipe was investigated using the fractional Maxwell model. Two s......