\(\omega_{1}=\frac{mN_{r}\mathrm{\Omega}}{k_{1}}\) and \(\omega_{2}=\frac{mN_{r}\mathrm{\Omega}}{k_{2}}\) (11a)
\(\overset{\grave{}}{\omega_{1}}=\frac{nN_{s}\mathrm{\Omega}}{k_{1}}\) and \(\overset{\grave{}}{\omega_{2}}=\frac{nN_{s}\mathrm{\Omega}}{k_{2}}\) (11b)