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1.An approach was presented to evaluate fundamental frequency of bridge piers based on the combination of Rayleigh method and Southwell method. The fundamental frequency was decomposed to the sum of frequency of each subsystem consisting of deformable component and inertia component.
在瑞利法和Southwell频率合成法的基础上导出了桥墩复合振动基频的计算公式,将基频表示成各惯性元和复原元所组成子系统的频率合成。收藏指正
2.The formula for lower limit of natural frequency of tapered pier of continuous beam bridge were derived by the combination of Rayleigh and Southwell method. The natural frequency of tapered pier was composed of the sum of frequency of each subsystem consisted in inertia component and deformable component. Then finite element analysis was used to establish models to verify the approach.
采用瑞利法和Southwell频率合成法,将基频表示成各惯性元与复位元所组成的子系统的频率合成,导出了变截面桥墩自振频率下限的计算公式,然后用有限元模型验证该公式的正确性,并分析了不同变截面系数及不同类型的弹簧约束刚度对变截面桥墩自振频率的影响,对桥墩结构状态的评定具有一定的参考作用。收藏指正
3.Methods The weights of the 8 dimensions of SF-36 were calculated by primary component analysis(PCA)to comprehensively evaluate by TOPSIS and rank sum ratio(RSR)method.
方法采用主成分因子分析(PCA)法确定中文版SF-36各个领域的权重,并运用TOPSIS法与秩和比(RSR)法相结合进行综合评价。 结果成都老年人QOL最优;收藏指正
4.It is found that, tinder certain conditions, the first or the second perpendicular phase component of the multi-mode functional superposition stale ligh field can present any generalized nonlinear equal-power higher-power sum-squeezing effect which changes periodically.
结果表明，在一定的条件下，该态的第一正交相位分量（即广义磁场分量）和第二正交相位分量（即广义电场分量）分别呈现出周期性变化的广义非线性等幂次高次和压缩效应。收藏指正
5.This article agree with narrow sense and propose that the definition of double insurance may add some component parts such as the same insured, several contracts with different insurers, the same safe time limit and the sum of premium exceeding the insurance value.
笔者赞同复保险狭义论,同时还建议增加“同一被保险人”、“向数个保险人订立数个保险合同”、“保险期间重合”、“保险金总和超过保险价值”为复保险构成要件。收藏指正
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