有基本流动的渠道中的孤立波

<正> 迄今为止,大多数关于渠道中的孤立波的研究都作了静水的假定,从而避免了波与流相互作用的难题。但在自然界的江河中大都有基本流动,这就要求我们研究有基本流动情况下渠道中的孤立波。Benjamin,Peters,Turpin等人先后在这方面做了一些工作。 我们研究无粘、不可压缩流体的运动,基本流动沿着渠道方向,渠道断面及坐标如图

Non-invasive methods for identifying oocysts of Sarcocystis spp. from definitive hosts

Because the excreted sporocysts and/or oocysts of various species of Sarcocystis may not be discriminated morphologically, we sought to validate a diagnostic technique based on variation in the 18S rDNA sequence. Oocysts and/or sporocysts; from three taxa

Unexpected promotion of Au/TiO2 by nitrate for CO oxidation

The catalytic activity for Au/TiO2 for CO oxidation can be significantly enhanced by the addition of nitrates and this may relate to the variable catalyst performance observed in many studies.