进而建立了非均匀波纹慢波结构返波管的线性理论,给出非均匀慢波结构返波管中起振电流的计算表达式。
Furthermore, we established a linear theory of the non-uniform slow wave structures and formulated the expression of the starting current.
当波从小扰动源向各个方向均匀传播时,其强度的变化与距离的平方成反比。
When a wave travels uniformly in all directions from a small source, the intensity varies inversely as the square of the distance.
本文研究非均匀磁场中非线性剪切阿尔芬波。
Nonlinear shear Alfven waves in an inhomogeneous magnetic field have been investigated.
研究表明,在非均匀磁场情况下,阿尔芬波通过自相互作用也可以形成局域涡旋结构。
The result shows that in the presence of inhomogeneous magnetic field. the shear Alfvenwaves will be able to form localized vortex structures through their self-interactions.
当波从均匀介质中的波源移出时,呈直线传播。
Moving out from a source in uniform medium, a wave travels in straight lines.
高密度弹性波CT检测防渗墙质量可反映墙体介质分布的均匀性,但目前软件只能满足一般性数据处理;
The high-density elastic wave CT detecting technique can reflect the homogeneity of wall materials, but the existing software can only be used to process the common data.
实验结果表明,用应力波因子评价铝合金板材的相对均匀性具有可行性。
The experimental results show that the stress wave factor may be used to evaluate relative uniformity of aluminous sheets.
若火焰以稳定速度在均匀的静止云雾中传播,则压力波后的流场是自相似的。
If the flame is propagating at steady speed in static and homogeneous clouds, flow field just behind the pressure waves is self-similar.
推导了用于非均匀各向异性弹性波场正演的伪谱法基本公式。
The basic formula of pseudo spectral method are derived for simulating inhomogeneous anisotropic elastic waves field.
用双波量子理论描述带电粒子在均匀磁场中的运动,得到对单个粒子运动状况的完全描述。
Double wave quantum theory is applied to describe the motion of charged particle in a uniform magnetic field. This description of the motion of the particle is complete.
此研究中我们在横向均匀模型中应用波饵近似来最小化计算要求,但这并不是我们的方法固有限制。
In this study we minimize computational requirements by using the Born approximation with respect to a laterally homogeneous model, but this is not an inherent limitation of our approach.
采用基于开尔文源的面元法求解航行于均匀流场中的船舶兴波问题。
The wave problem is predicted by adopting panel method based on Kelvin source for a ship traveling in a uniform flow.
首先讨论了波在非均匀损伤介质中传播的正问题,根据已知介质的性质和入射的波,求出接收处波的响应。
By the property of media and incident wave to seek of response wave, the problems of wave propagation in inhomogeneous damaged zone media are studied at first.
本文提出了一种利用反射波走时曲线计算垂向非均匀介质速度和反射界面深度的方法。
A method is presented, which makes it possible to calculate velocity and interface depth of the reflected wave in a vertically inhomogeneous medium.
非均匀介质中的孤子和孤波对于相对论量子力学和量子电子学(例如红外孤子激光器的研究)是很有意义的。
Solitons and solitary waves in inhomogeneous media are of interest in relativistic quantum mechanics and quantum electronics, e. g. in research on infrared soliton lasers.
管子应通体均匀,无裂纹、无孔眼或杂质,还应无气泡、凹痕、波痕、拉模划痕和热痕。
Pipe shall be homogeneous throughout, free from cracks, holes or foreign material, and shall be free from blisters, dents, ripples, die and heat marks.
本文研究电磁波在一类特殊非均匀媒质中的反射问题。
The reflection of electromagnetic waves from inhomogeneous medium with a special profile is investigated.
本文主要研究电磁波在不均匀等离子体鞘套中传播的一些近似计算方法。
In this paper, several methods of solving the problem of electromagnetic wave propagation in a inhomogeneous plasma sheath is investigated.
提出了一种非均匀各向异性介质中弹性波传播的数值模拟算法。
A new numerical simulation algorithm is presented for the elastic wave propagation in heterogeneous anisotropic media.
我们利用这些高精度的走时数据研究了地幔体波的走时残差的范围及地幔非均匀性的强度。
These mantle body wave data are used to investigate the range of variations in the travel time residuals which indicate the degree of mantle heterogeneity.
结果表明大气中被激发出的长波扰动最初主要是从基本状态的层结不均匀性中得到能量,然后可从波的相互作用中获取能量。
The results show that the excited long wave disturbance could first obtain energy from the stratified heterogeneity of basic state, then from the interactions among non-linear waves.
本文应用WKB方法研究了在弱非均匀层结大气中,当基本气流具有弱垂直切变时,重力惯性内波的稳定性问题。
This paper discusses the stability of internal inertial gravity wave in the heterogeneous stratified atmosphere when basic flow appears to be weak vertical shear by the WKB method.
提出了一种基于辛几何的高频近似的新方法,并用此方法求解了电磁波在一非均匀媒质中的传播问题。
A new symplectic geometrical high frequency approximation method for solving the propagation of electromagnetic wave in an inhomogeneous medium is presented.
分析了低频电磁波在均匀介质中的磁场分布,其分布与介质的介电常数、磁导率密切相关。
Magnetic field distribution of low frequency electromagnetic wave in even medium is analyzed, which is related to the medium's dielectric coefficient and magnetic inductive capacity.
对于纸页的均匀性分析,通过图像变换,将空间域图像变换到频域或小波域进行分析,获取其特征;
The homogeneity of the sheet is analyzed by image transform, i. e. the spatial domain image is transformed to frequency domain or wavelet domain to obtain the features.
对弹性波在非均匀介质中传播时的波幅进行了研究。
Elastic wave transmission in a continuous inhomogeneous media is studied.
对于复杂非均匀介质,可以利用地震散射波来研究其分布和性质。
For complex heterogeneous medium, the distribution and characteristics of its heterogeneity can be studied by seismic scattering wave.
均匀ti介质中的模拟获得了非常清晰的波场快照,其波场特征与理论分析能够准确吻合。
Clear wave field snapshots are obtained through the modeling in homogeneous ti media. The wave field characters accord with theoretical analysis.
应用几何光学中的射线理论,直观地讨论了准定常波在时间平均基流中的传播,解释了定常波传播的纬向非均匀性。
The ray theory of geometric optics was applied to visually investigate the propagation of quasi stationary waves in time mean basic flow and interpret the zonal nonhomogeneity.
基于互耦矩阵的特殊结构,给出了一种更具一般性的非均匀圆阵模型,提出了一种在未知互耦条件下的非均匀圆阵波达方向估计算法。
Based on the special structure of coupling matrix, a direction of arrival (DOA) estimation algorithm in the presence of unknown mutual coupling for the nonuniform circular array (NUCA) is presented.
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