though the analysis of the fresmel formula, the builds a new simple and visual geometric illustration which can offer the amplitude ratio named fresnel formula.
通过对菲涅耳公式的分析,找到一种新的简单直观的几何图示,能完整地给出菲涅耳公式的四个振幅比关系。
analytical solutions were obtained, and the formulae for resonance frequency, velocity distribution, amplitude ratio and node location derived.
我们获得了解析解,然后给出了共振频率、速度分布、振幅比和节点位置公式。
the effect of frequency ratio and velocity amplitude ratio on primary jet is complicated and with frequency ratio increased, the primary jet deflected angles change nonlinearly.
频率比与幅值比对主流的影响很复杂,随着频率比增大,主流最大偏转角呈非线性变化。
the amplitude ratio of small disturbances was decreased.
地磁小扰动的幅比减小;
optimum frequency ratio of adjacent jet actuators is 1∶1, and the bigger amplitude ratio can obviously improve control effect.
在所取算例中,相邻激励器频率最佳比为1∶1;大的幅值比可明显提高控制效果。
the software using method of amplitude ratio can compute source mechanism easily in less limitations. it can give both earthquake location parameter and source mechanism solution.
furthermore, with the method of amplitude ratio with different frequency selected, the areal attenuation effect and local site response have been studied.
采用振幅谱频率比方法,研究区域衰减效应和局部场地响应。
the amplitude ratio anomaly and the velocity ratio anomaly in hbc area can be usually seen at anticlinal axis areas and small noses.
在hbc地区的纵、横波振幅比异常和速度比异常多分布于构造的轴部和小鼻褶上。
based on propagation theory of plane wave, it is suggested that coherence in a crack could be indicated by the amplitude ratio or the coupling dynamic stiffness (cds).
依据平面波的传播理论提出由振幅比或裂隙耦合动刚度表示裂隙的粘合程度。
the amplitude ratio of the mainlobe to sidelobe of window function is an important index and so is the maximal energy ratio.
窗函数的主辨与旁辨的振幅比和最大能量比都是窗函数的重要性能指标。
the design concept of the relative frequency amplitude ratio and the relative frequency width of toque motor stiffness of electro-hydraulic servo valve are proposed.
提出了利用相对频率幅值比和相对频宽的电液伺服阀力矩马达的设计概念。
then, a numerical calculation method about installing positions of dampers on transmission lines by calculating the weighted amplitude ratio isp.