The radii are proportional to the time which has elapsed since the wave front occupied the position wi. 半径与波前占据wi位置以来能经过的时间成正比。
With smoothed particle hydrodynamics, we calculate the formation of micro-jet from the groove of metal surface, and reveal the dependence on the width of loading wave front. 利用光滑粒子流体动力学方法,计算了金属表面沟槽在冲击下的微射流现象,详细讨论了微射流对加载波前沿宽度的依赖性。
Successive positions of the wave front are then given by the envelopes of the secondary waves. 因此波前的相继位置即为次波的包络面。
This assumption is reasonably justified in the early stages, when the wave front is not far from ground zero. 这种假定在初期阶段波阵面离地面零点不远时是相当合理的。
Adaptability Analysis on Fault Location of Continuous Railway Power Line by Traveling Wave Front Extraction Algorithm Based on Mathematical Morphology 基于数学形态学原理的行波波头提取算法在铁路电力贯通线测距中的适应性分析
In the end the propagation rule of wave front set under linear substitution mapping is given. 最后揭示了线性变量替换映射下波锋集的传播规律。
The basic principle and characteristics of a new kind of linear phase-retrieval ( LPR) wave front measuring method were analyzed. 对一种基于线性相位反演的新型波前测量方法的基本原理和性能进行了研究。
It starts with zero and grows to a maximum slightly behind the wave front. 它从零值开始,并在稍后于波阵面处增长到最大值。
As one of the important technical specifications of diffraction grating, diffraction wave front aberration directly affects the grating resolution. 波前像差是衍射光栅的重要技术指标,它直接影响光栅的分辨率。
According to the micro changing and wave front rebuilding of3D ray tracing, we proposed a quick arithmetic applying to3D complex medium seismic wave traveling time. 基于三维射线跟踪的微变网络方法和波前重建思路,提出一种适用于三维复杂介质地震波走时的快速算法。
Measurement of Wave-front Aberrations in the Children s Eyes Using Asclepion Shack-Hartmann Aberrometer; The wave front aberrations of complications undergoing LASIK was compared with uncomplications. Asclepion像差仪测量儿童波前像差的初步研究采用主观性波阵面像差仪对眼波阵面像差进行了测量与比较。
Conversion of wave front based on phase modulation of liquid crystal spatial light modulator 基于液晶空间光调制器相位调制的波面转换
Based on the relationships between spherical aberration and wave disparity, color aberration and wave front chromatic aberration, the equations of structure parameter and wave disparity are deduced. 以球差与波差、色差与波色差的关系为基础,推导出了波差与结构参数之间的关系方程式。
All elements are radiating in phase, and the resultant wave front is perpendicular to the axis of the element array. 所有单元发射相位一致,合成的波前垂直于单元阵列轴线。
Wave Front Twist of a Laser Beam Propagation in an Atmospheric Turbulence 湍流大气中激光传输波前扭曲规律研究
When the incident wave front reaches this point, the reflected wave is still some distance away. 当入射冲击波波阵面到达这一点,反射波离开它还有一段距离。
The performances of the LPR method was tested by numerical simulation on measuring atmosphere disturbed wave front using the LPR method. 以大气湍流畸变波前像差的测量为例,对这种线性相位反演波前测量方法进行了数值仿真研究。
The formulas of mode conversion are derived and effects of optical beam power, initial beam width radius and inverse of the radius of curvature of the wave front on the mode conversion are analysed. 导出模式变换公式,分析了光束功率、光束初始的束宽半径和波前曲率半径的倒数对模式变换的影响。
The results showed that acoustic wave front was decided by the shape of the medium absorbed the laser energy; 结果表明光声波的波阵面与吸收激光能量的媒质的形状有关;
The temperatures after the reflection of shock wave front with different inner angles are also compared. 同时,还对不同角度内楔的反射激波后气流温度进行了比较。
High-pressure acting on samples were produced by shock wave front converging in metallic ball. 在该装置上,利用冲击波由金属球体表面向中心汇聚形成的高压,对样品进行了冲击处理;
The errors of Hartmann wavefront sensing, fitted wave front and deformable mirror wavefront recovery are discussed. 讨论了系统波前哈特曼(Hartmann)探测误差,拟合误差以及变形镜波前复原误差。
After analysing the tall building structures summarized, two wave front solution programs calculating that are designed. 概述了高层结构的分析方法,给出了高层结构计算的两种波前法计算过程。
A diffraction selectivity theoretical analysis method of volume gratings with wave front phase encoding is proposed. 论文给出了分析随机波前相位编码体光栅选择性衍射的一种方法。
Experimental results show that there existed a wave front with wave velocity exceeding that of longitudinal wave between the loading transversal wave and the unloading longitudinal wave. The wave has affected the amplitude of the unloading waves. 结果表明,在加载剪切横波(S+)和卸载纵波(P-)之间有波速超过了纵波波速的波阵面存在,此波的存在对卸载纵波和卸载横波的幅值有一定的影响。
During the simulation wave front solution is used. 其仿真采用波前求解器。
The LS-DYNA software was applied to simulate the detonation wave front, pressure field and shape and velocity distribition of the rod projectile under center point initiation, plane wave initiation and annular wave initiation. 用LS-DYNA软件模拟了中心点起爆、平面起爆和环形起爆方式下所形成的爆轰波波阵面、压力场及杆式弹丸的外形和速度分布。
Structure of Wave Front and Organization Center in Excitable Media 激发介质波前曲面和组织中心的结构
An inversion method named impulse response wave front simulation was suggested based on the dynamic photoelastic experiments. Then the practical forward algorithm of acoustic field in a rod and the scattering acoustic field of a cylinder cavity were obtained. 以动态光弹实验为基础,提出了冲击响应波前模拟方法,并对圆棒内声场和圆孔散射声场建立了具体的正演算法。
It also has established a numerical model of phase distribution, a preliminary discussion of the low-frequency pump wave front phase distortion on the phase of the signal. 另外还建立了位相分布数值模型,初步讨论了泵浦光的低频位相畸变对信号光波前位相的影响。