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Analysis of soil moisture of Hetao regions during drought and flood years show that variability of soil moisture of the mid-south Hetao regions is a sensitive factor of variability of climate over north China. During dry year, Hetao regions are easily controlled by northly flow; during wet year, westerly and southly flow join over the regions, which reveal the essentiality of land - air reciprocity.(3) Correlation between soil moisture over mid-south Hetao regions and other elements: Correlation between soil moisture over mid-south Hetao regions and geopotential height shows that significant correlation regions are located in regions where the relatively steady stationary wave exists; delay correlation analysis show that change of soil moisture could cause change of geopotential height, and further cause change of location and intensity of the stationary wave, which leads to change of rainfalls and air temperature. The significant signals could appear at least one month earlier.
河套中南部土壤湿度与大气位势高度场的相关分析表明，同期显著相关区的位置都是比较稳定的定常波天气系统的位置；对大气的滞后相关分析表明，土壤湿度变化可引起高度场的变化，从而使定常波的位置和强度发生变化，进而导致降水场、气温场的变化，并且比较明显的信号至少可在1个月前表现出来。
Both approximate and calculated results of fundamental wave and second harmonic wave for intensity variation with phase aberrated coefficient have been presented. It is applicable to designs of harmonic generation for high power lasers.
第三部分：把准晶态结构引入到非线性光学介质中，得到所谓的超晶格，当这种超晶格的倒格矢与光波矢可以相比拟时，光波在其内的传播将与传统情况有很大的不同。
The result shows that a relative even electric fields with its area 40cm×40cm among the board in GTEM cell can be presented with its fluctuation less than 7%. Homoplastically, the even magnetic environment can be presented. The LEMP field can be simulated by changing the intensity of shock-wave generator. The electromagnetic sensitivity can be measured in GTEM cell and the loop.
并且根据对不同距离处 LEMP 场强度和波形的计算，可以调整冲击电压发生器的输出强度以及 GTEM 室两端的电阻来模拟不同距离处的雷电脉冲电场环境；类似地可以调整浪涌发生器的输出强度和线圈参数来模拟不同距离处的雷电磁场环境。
To measure artificial seismic wave with high accuracy in remote distance, the theory and methods of coherence of light resource, stability of system, intensity and signal to noise ratio of laser Doppler signal, and sensitivity and accuracy of displacement measurement are investigated.
为解决远距离处人工地震波的检测问题，研究了光源的相干性，系统的稳定性，激光多普勒信号强度、信噪比，位移测量灵敏度和精度等理论及方法。
In this paper a method is presented to verify the instruments for the measurement of sound intensity in a progressive plane wave field.
本文提出一种通过平面行波，直接检定声强仪性能指标的方法。
It makes various dirty substances peel off from the cleaned surface, thus reaches the goal of erasion, By utilizing ultrasonic wave for rinse, it has advantages of quick cheaning speed, good effect, nodamage to spares and the decrease of labour intensity, costsaving etc.
利用超声波清洗具有清洗速度快、效果好、不损伤零件、减轻劳动强度、节约成本等优点。
The state of electron is described by wave function and the intensity distribution of multiple slits electron diffraction is derived by probability distribution of electron momentum.
将电子状态用波函数描述，由动量概率分布，推出电子多缝衍射强度分布。
Above the oscillation threshold of the NOPO(～3mW), the twin beams with intensity quantum correlation of 60dB were obtained; when a signal of subharmarnic wave, which...
通过控制不同的工作条件，在此装置上可以产生多种类型压缩光：阈值以上产生约 6dB(74%)量子相关孪生光束；在阈值以下，通过注入信号光参量缩小过程产生2 1dB明亮正交振幅压缩光；将参量放大器出射的两个频率简并偏振垂直的孪生光束分开，获得振幅反关联位相正关联明亮EPR源。
The light intensity formulae were derived for coherent superposition and non coherent superposition between ordinary wave and extraordinary wave.
针对o光与e光非相干叠加和相干叠加两种情况，导出了光强公式。
OMTs manufactured by homogeneous waveguide sections are very popular for their good mechanical intensity, high power capacity and upstanding stability. In this dissertation, the OMTs about above-mentioned will be deep and systematically researched from the following aspects:i Computing procedure of Finite-Difference Time-Domain Method isbriefly introduced, followed by detailed discussion of different absorbing boundary conditions and excitation sources. FDTD numerical method suitable for waveguide analysis can be obtained. ii Millimeter-wave OMTs are analyzed by FDTD programs. The simulation results from HFSS are well agreed with those using FDTD numerical method, which can validate the efficiency of the proposed numerical technique, iii The experimental OMT is manufactured and measured. Testing results reached design target. Those lay a technical foundation on dual polarization communication and exploration systems. iv General introduction is put forward about two kinds of wideband OMTs with complicated structures and different excitations. Field distribution and characteristic parameters are obtained with HFSS software. The above research is very valuable and helpful to development of wideband OMTs.
由于采用均匀波导实现的正交模转换器具有机械强度好、功率容量大和可靠性高等优点，因此本文对采用均匀波导实现的正交模转换器进行深入系统研究，具体研究工作如下：1 简要阐述了时域有限差分法(Finite-Difference Time-Domain Method)，对不同吸收边界条件及激励源设置进行了详细的比较分析，得出了适用于波导分析的FDTD计算方法； 2 采用FDTD数值方法对毫米波窄带正交模转换器进行分析，分析结果与HFSS仿真结果吻合较好，验证了本文所研制的分析软件的有效性； 3 设计并研制了毫米波窄带正交模转换器，测试结果达到设计指标，为毫米波双极化探测系统的研制奠定了技术基础； 4 简要介绍了两类结构较复杂、激励方式不同的宽带OMT的设计思路，借助HFSS分析了场结构并给出参数仿真曲线，为近一步开展毫米波宽带OMT的研制提供理论设计基础。
Objective:The influences of different mediums on the intensity of millimeter wave radiation were studied.
目的：研究不同介质对毫米波辐射强度的影响。
Methods: changes of membrane potential induced by sine wave stimulus of different frequency was measured on hodgkin huxley computer model and smop and firing induced by noise of different intensity were also measured.
在神经元的hh（hodgkin huxley model，hh）计算机模型上，采用不同频率的正弦波波形刺激，观察神经元的膜电位变化；观察神经元阈下膜电位振荡和放电在不同噪声强度下的变化。
Abstracting the edge information of the picture first, carry on coefficient to revise to it; The coefficient characteristic after varying according to the small wave, there is the intensity of imbedding the watermark of adjustment that is chosen, make the robust getting excellent and inobservance raise.
先提取图像的边缘信息，对其进行系数修正；又根据小波变换后的系数特性，有选择的调整嵌入水印的强度，使鲁棒性和不可见性都得到了提高。
objective the generalization and application of instantaneous acceleration wave intensity were expected through the phase analysis of this new technique.
目的 期望通过对瞬时加速度波强的时相分析，有助于wi新技术的临床推广应用。
Based on the diffraction theory of monochromatic scalar wave, the characteristics of plane wave with uniform intensity diffracted by aperture-array from different angles were investigated.
以单色标量波衍射理论为基础，研究了均匀平面波从不同角度入射小孔阵列的衍射特性。
By means of a linear array CCD light-intensity distribution measuring system, via the variation of the frequency and the power of ultrasonic wave, the direction control and the intensity modulation for the laser beam can be carried out.
在实验中，应用线阵CCD光强分布测量仪等，通过改变超声波的频率和功率，分别实现了对激光束方向的控制和强度的调制；定量给出了声光偏转量的关系曲线和声光调制测量的关系曲线。
Research found out that the human body needs energy mainly in the wavelength range 9844 nanometer (20 ℃)~ 9108 nanometer (45 ℃), QK-STA can be issued for the treatment of life-energy multi-peak broadband Namibia, and the energy required by the body's cells Wave consistent, but, in QK-STA issued by the intensity of wave energy is higher than that of human energy waves more than 10 times.
科学研究发现，人体所需要的能量波长范围主要在9844纳米（20℃）～9108纳米（45℃），QK-全科治疗仪能够发出强生命能量多峰宽带纳米波，与人体细胞所需的能量波相一致，只不过，全科治疗仪发出的能量波的强度要高于人体能量波的十几倍。
Under this background, we developed an equation to solve the phase problem from the amplitude of exit wave function, which derived from Schr? dinger equation as follows. whereφis amplitude of the exit wave function, I is the intensity of exit wave function, which is measurable, αis the phase which is unknown. The above expression is a two dimension elliptic partial differential equation.
在此背景下，本文从薛定谔方程出发，推导出如下的直接从波函数振幅模拟出射面波函数位相的表达式，在(2)式中φ为出射面波函数得振幅，I为出射波函数的强度，为实验可测的数据，α为位相，是要求的未知数，上式为二元二次椭圆偏微分方程，可以通过数值计算方法求解。
Testing methods and properties of the laser plasma shock wave is studied in this paper by analyzing the experimental, data simulation and theoretical result in the lit threshold, the mechanism of action between Laser-Supported Detonation Wave and component of plasma and gas with the variation of laser power density Based on the phenomena of laser supported combustion or detonation wave occurs because of the interaction between the high-intensity laser and material, a new method is present for diagnosing the ignition threshold of laser supported detonation wave by measuring the jump of the sound peak pressure of laser-target plasma.
本文对激光等离子体冲击波的测试方法和特性进行了研究，对激光支持爆轰波的点燃阈值、激光支持爆轰波的冲量耦合过程及其激光吸收区内气态粒子和离化粒子的组分进行了实验、理论、数值模拟的分析工作。