波周期

测定了它们的气室平均输出气流功率随波周期的变化曲线NA－T；

The air chamber ′ s average output variation curves N A T with wave period T were determined .

结果表明，地形影响不仅与MTS资料的种类、极化模式、场源电磁波周期及测点位置有关，而且还依赖于不同的地形形态和尺度。

Our results indicate that effect of topography depends on the type of MTS data , mode of polarization , electromagnetic wave period of field source , survey site , as well as the form and scale of topography .

但这个机制可能只是foEs中存在行星波周期振荡的原因之一。

But , this mechanism may be only one of reasons why planetary waves exist in foEs .

赤道异常的行星波周期振荡的统计特征与逐年变化及其QBO调制

Characters of planetary scale oscillations in the EIA and its yearly variation and response to the QBO

本文描述了非线性导波周期结构的基本概念和制备方法，并在InSb和掺半导体玻璃波导上制备出了光栅耦合器，观测到了非线性耦合效应，讨论了它们的实用化前景。

Fundamental concept and fabricating method of nonlinear gnided-wave periodic structure are described in this paper . Grating couplers are made on InSb and semiconductor doped glass waveguide . Nonlinear coupling effects are observed experimentally .

当入射波周期为1.5s时，裂流强度会因为裂流槽位于第一个节点附近而增强。

When the period is 1.5s , the rip currents will strength since the rip channel is at the position of node .

时间常数RSC大于输入方波周期的3倍，输出三角波幅度与无分流电阻时的相对误差<10-2量级。

The amplitude 's relative error of the output triangle-wave due to the shunt resistance may be less than 10 - 2 , while time constant R sC is larger than 3 times of period of the input square-wave .

基于最大似然法的交替陷波周期图算法（ANPA）是一种超分辨率的谱估计算法，它同时具有超分辨率、高精度和低信噪比门限的特性。

Alternating notch periodogram algorithm ( ACPA ) based on maximum likelihood ( ML ) can regarded as a complete solution to the discrete spectrum estimation problem since it achieves superresolution , very high accuracy , and low SNR threshold .

以子波变换分析高频组成波周期信息并对超射现象进行动力学研究。

A study is made on the overshoot phenomena in wind waves .

梯形波周期加载下超高强度钢的氢致断裂

Hydrogen-induced fracture of a super-high strength steel under cyclic load of ladder waveform

浅水风波波高、波周期分布

Wave height and period distribution in shallow water

色散补偿光纤中呼吸波周期行为的剖析

A Study on Periodic Behavior of Breather type Waves in Optical Fibers with Dispersion Compensation

利用日本及印度垂测站的电离层月报表资料，分析出电离层赤道异常具有行星波周期的振荡。

Planetary-scale oscillation of the equatorial anomaly is drawn from the ionospheric data in Japan and India .

拖拉机负荷曲线的方波周期函数模拟新方法

A new method refering the imitation of tractor load curve by means of periodical function in square waves

其中波浪参数是水文要素测量的重要组成部分，波浪要素包括：波高、波周期以及波浪传播方向等。

Wave parameters which include wave height , wave period and wave direction is an important part of the hydrological factors measurement .

浅水波周期保持常值，而波长缩减时其计算需进行迭代。

The wave period in shallow water keeps constant , but the decrease of wave length must be calculated by alternative method .

最后，根据雷达图像谱与海浪方向谱之间的经验传递函数得到海浪方向谱，从而得到更多的海浪统计信息，如主波周期、频率、方向等。

Finally , the wave directional spectrum was acquired according the experiential transfer function between the radar image spectrum and the wave directional spectrum .

同时，还给出了有实用意义的波高&波周期联合概率密度图及联合分布模式。

In addition , a combined probability density figure which is very important in the sense of practice and a combined distribution model are presented .

将总计10个月的数值模拟的有效波高、波周期和波向分别与相应的观测值进行了定量比较。

The numerical results of ten months ' significant wave heights , wave periods and wave directions are compared to the measured data quantitatively , respectively .

使用重力波周期-振幅谱的动态分析方法，把冰雹过程从不同的发展阶段加以考察，发现了一些雹云发展和重力波演变特征之间的联系。

Using the dynamic analysis method of the period-amplitude-time spectrum , some definite relations between the development of hailstorms and characteristics of atmospheric gravity waves are found .

反演所得的有效波高、有效波周期与浮标实测结果基本一致。

A validation test is designed and the results derived from buoy data coincide basically with that of inversion from SAR image for effective wave height and wave period .

试验装置可以全方位试验不同波高、波周期、水深、摆板排水量、以及不同初稳性高下的响应状态。

The equipment can experiment with different wave height , wave period , water depth , swing the body displacement , and the response status under different metacentric height .

对太湖风浪观测资料的分析，得到了浅水湖泊中波高、波周期的统计分布，以及特征波要素之间的关系。

Based on the observation wave data of the Taihu lake , derived the distribution of wave height and period in shallow water , obtained the relation between wave characteristics .

通过构建一个映射函数，发现在波周期和外部光强的关系中存在魔鬼阶梯，并且此阶梯与实验数据相吻合。

By constructing a mapping function , the characteristic devil ′ s staircase can be reproduced when plotting wave period versus light intensity , in agreement with the experimental data .

该方法可检测出每个调幅波周期中的电压波动值，并且能计算波动功率。

By analyzing and comparing the features of the methods and devices in existence , a new digital detection method is present . It is capable of detecting the value of both the fluctuation voltage and the fluctuant power .

三角波的周期可以在1μ～5S范围内数字控制。

Digital controlled period of triangular wave ranges from 1 microsecond to 10 seconds .

BBM方程孤立波和周期波解的分支（英文）

Bifurcation of Solitary Wave and Periodic Wave Solutions for BBM Equation ;

研究结果表明：慢波结构周期为1.5cm1.9cm时，微波频率范围为4.33GHz4.74GHz，属于C波段；

The results show that when the period of the slow-wave structure changes from 1.5 cm to 1.9 cm , the range of microwave frequency is 4.33 GHz-4.74 GHz , which belongs to the C band ;

同时本文还应用动力系统的Hopf分支理论来研究一类耦合非线性波方程周期行波解的存在性和稳定性.在不同的参数条件下给出了上面解存在和稳定性的充分条件。

At the same time , the paper study a coupled nonlinear wave equations , the existence and stability of periodic wave solutions by Hopf bifurcations are obtained . Under different parametric conditions , various sufficient conditions to guarantee the existence and stability of the above solutions are given .

用于电子对抗的高效率、连续波、周期永磁聚焦行波管

A High efficiency , CW , PPM-Focused TWT for ECM Applications