Both nonreciprocal birefringent effect and variable polarization effect of microwave ferrite in the symmetrical four-pole magnetized field are discussed in the light of coupling-wave theory.

本文用耦合波理论处理了对称四磁极磁化情况下，微波铁氧体的非互易双折射效应和变极化效应。

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Then the selections of phase number, winding connection, pole number and number of branches in parallel are optimized according to the SRM's symmetry and order of force wave.

接着从对称性、力波阶数等角度研究了SR 电机相数及绕组连接方式、极数、并联支路数的选择问题。

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The particular approach considered is that of collocated, PD feedback wave control combined with modal control designed using pole placement.

考虑的具体方法是将PD反馈波控制与基于极点配置法设计的模态控制相结合。

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Add to that the fact that Internet companies with a lot more sex appeal than LinkedIn -- including Facebook, Groupon, Pandora, Yelp and Zynga (makers of FarmVille) -- are all likely to go public within the next year, and you have LinkedIn taking the pole position in what will be a tidal wave of social media companies entering the public markets.

CNN: LinkedIn's IPO is a watershed moment for social media