波

It shows that it is possible to increase the start oscillation length by tailoring magnetic field's amplitude and its period without changing the synchronous condition of the fundamental wave; in the meantime, when there are two or more azimuthally asymmetric space harmonics in the high power broad-band helix TWTtraveling wave tu...

与此同时，对起振长度、初始非同步速度参量随皮尔斯增益参量、空间电荷参量、损耗参量等的变化，以及在超宽带行波管中当存在两个或多个角向非对称空间谐波时，起振长度、初始非同步速度参量随周期永久聚焦磁场的变化进行了研究。优化设计聚焦磁场、电子注和螺旋线慢波系统的参量可以对螺旋线行波管的稳定性分析提供必要的依据。

Cross-dipole Acoustic Logging is the best measurement of the formation wave-slowness,amplitude and attenuation coefficient of the compressional,shear and Stoneley wave types that may occur in array acoustic waveform data.Further more,it has special superiority in the evaluation of shear-wave azimuthally anisotropy.

0引言在柴达木盆地交叉偶极子声波测井主要有以下方面的用途：纵横波、斯通利波的提取，地层各向异性分析和斯通利波渗透性分析，并且可以根据地层岩石动态力学参数的计算方法进行储层动态力学参数的计算和估计，指导工程施工。

From acoustic wave equation, current continuity equation and boundary conditions, we have solved the interface potential produced by BAWs in interface between piezoelectric solid and semiconductor. The results of YZ LiNb03/n-Si structure with SV wave incidence have been calculated and experimental result has been given. Finally, we have presented some kinds of BAW acoustoelectric convolver structures and analyzed their features.

由声波动方程，边界条件和半导体的电流连续性方程出发，推导出了斜入射体波在压电体/半导体界面产生的界面电势以及通过半导体的作用产生的倍频电势的结果，并且对YZ-LiNb03/n-Si结构，SV波入射的情况进行了计算，给出了部分实验结果，提出了几种可能的体波声电卷积器的结构，并分析了它们各自的特点，理论和实验的结果将为今后这类器件的研制提供依据。

It is found from experiment that when pumped by skew light along the fibre's axis, both transverse electric wave and transverse magnetic wave exist in WGM lasing emission simultaneitly. With the increase of refractive index of cladding dye solution, the wavelength spacing between TE and TM waves of which the radial mode number and angular mode number are the same value decreases, and the central lasing wavelength of WGM bluely shifts to short wavelength direction.

实验发现，在抽运光以偏斜光线方式沿光纤的近轴向抽运时，回音壁模式的光纤激光辐射中，既存在光电矢量和光纤径向垂直的横电波，也存在光电矢量和光纤径向平行的横磁波；随增益包层染料溶液折射率的增加，径向模式数和角模式数相同的TE波和TM波之间的波长差单调减小，回音壁模式激光辐射的中心波长向短波方向移动，辐射的波长范围变窄。

Boni Ya Food Group Co., Ltd. under the jurisdiction of Qingdao, Qingdao Sino-foreign joint Boni Ya Catering Co. Ltd., Qingdao Liuting Pig Food Co., Ltd., Boni Ya Food Co., Ltd. Weifang 4 subsidiary companies.

集团公司下辖青岛波尼亚食品有限公司、中外合资青岛波尼亚配餐有限公司、青岛流亭猪蹄食品有限公司、潍坊波尼亚食品有限公司4个子公司。

An efficient central ellipse algorithm for estimating the echo peak positions of ultrasonic sampling was presented to find the accurate receive time of echo by searching the peak of energy bursts, which is base on the theories of energy centrobaric correction method and least square method in the ultrasonic ranging system.

基于能量重心校正法和最小二乘法的原理，提出了一种改进型椭圆中心超声回波寻峰算法：通过曲线拟合搜索椭圆中心点，即回波信号能量集中点，进而找到回波信号的峰值点。

The main findings of the study are as follows:(1) Both N2 and P3 are the characteristic ERPs under nogo inhibition,but P3 amplitude is a good indicator of inhibition processing depth;(2) Through ERP waveforms separation from encoding of stimuli sequence,we verify that the capacity of visual working memory is about 4 units;(3) In the go/nogo sequence response, encoding is mainly the function of right hemisphere, but inhibition retrieval is concentrated on left frontal area and anterior cingulated cortex.

本研究获得了以下结论：(1)在nogo抑制条件下，N2和P3波是特征的抑制波，但P3的波幅是反应抑制加工深度的良好指标；(2)对刺激的顺序编码加工的ERP验证了工作记忆的处理单元的容量为4左右；(3)在Go/nogo序列反应中，编码加工体现为右脑优势，而抑制提取的加工负波集中在左脑前额和前角回区。

The THz wave can be monitored by measuring the idler spectrum in collinearly phase-matched TPG process.

藉由idler频谱的量测，可以确定兆赫波的产生，并且了解波导兆赫波参数产生的模态结构。

Beam waveguide feed system,composed of a series of flat reflectors,conicoid mirrors and lens can use conicoid mirror and flat mirror as rotating joint to implement mechanical scan of antenna in electromagnetic wave transmission.

通过对波束波导馈电卡塞格仑天线工作原理的分析，论述了波束波导在高功率微波辐射天线中的应用及设计方法，重点介绍了一套利用波束波导馈电高功率微波辐射天线。

Retroreflector array is used as pseudo phase conjugator in the system. The fidelity of the conjugate wave and matching problem of the retroreflector array and Hartmann-Shack wavefront sensor is discussed. Several data fusion methods are presented in order to having two Hartmann-Shack wavefront sensors control one set of wavefront corrector. The misalignment errors of Hartmann-Shack wavefront sensor and arrangement errors of wavefront sensor and deformable mirror are analyzed. At the same time, numerical work based on the data of practically system, such as 61 element AO system, are done corresponding to the problem respectively and the results are given.The system of CP/CM AO is setup to fulfill all the functions.

针对不同的应用环境，提出了四种CP／CM衍生光路；进行了关键器件——角反射器阵列的保真度分析，给出了角反射器阵列作为伪相位共轭器件，与哈特曼—夏克波前传感器的匹配条件，认为角反射器阵列的布局要与哈特曼波前传感器的微透镜阵列布局完全对应，才能达到最优探测效果；提出了四种双哈特曼传感器控制一套波前校正器的数据融合方式，并逐一进行了分析，认为加修正因子斜率融合和电压融合方式在目前工程中是适用的，并进行了相应的数值模拟；给出了哈特曼传感器自身的调整误差分析过程，得到了误差可通过常规标定消除的判断依据；通过数值计算，得到了常规自适应光学系统和CP／CM系统哈特曼传感器和变形镜的对准误差对系统性能的影响，给出了两种系统对于不同对准误差情况下校正效果的变化情况和相应系统容限；以37单元自适应光学系统为基础，搭建了CP／CM自适应光学系统光路，并完成了系列CP／CM功能实现实验，运用双哈特曼传感器数据融合，成功实现了CP／CM自适应光学系统的闭环实验。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。