查询词典 harmonic integral

Especially, we derive the Pohozaev identity for p-harmonic equation from which we obtain the corresponding nonexistence of nontrivial solution for p-harmonic equation with critical growth.

本文考虑了几类椭圆方程的Pohozaev恒等式，特别是对p-调和方程在两种边界条件下的恒等式作了详细的演算，并利用这些恒等式得到了一些解的非存在性结果。

A new method for assessing harmonic impedance and the harmonic emission level is preseented, which is based on the partial least-squares regression.

提出了一种基于偏最小二乘回归的系统谐波阻抗及用户谐波发射水平的估计方法。

The new method is given to design the optimum profile modification curve design The effects of optimum profile gear in improving the dynamic performance of gear transmission are verified in the Gear Dynamic Performance Test Rig In this dissertation, the main study contents and creative results are shown as following: The influences on the gear transmission system caused by the gear's accumulated error (periodic error and harmonic error) are theoretically studied. A new method is developed to simulate the gear's harmonic error by using the 2-order MARKOV process A simulated model of the dynamic performance which is excited by the gear's accumulated error is obtained.

本文在前人大量研究的基础上，结合作者承担的国家自然科学基金项目"齿轮传动动态系统辨识与三维修形研究"和山东省自然科学基金项目"齿轮传动动态性能仿真及结构参数、齿形的优化修形"，采用理论和试验相结合的新思路，系统地研究了齿轮传动的动态性能，建立了能正确描述齿轮传动系统动态性能的仿真模型和系统辨识模型，给出了确定齿轮传动轮齿修形曲线的优化设计方法，利用自行研制的齿轮传动动态性能试验装置，验证了优化修形齿轮对提高齿轮传动动态性能的突出作用。

The emulation result shows that the error of polarizer rotation angle almost does not influence nonlinearity when elliptic polarization of laser beams exists; when the error of rotation angle of polarizing beam splitter exists, the second-harmonic nonlinearity caused by the error of polarizer rotation angle will not increase, but the first-harmonic nonlinearity will increase greatly.

仿真结果表明，当存在激光束椭圆偏振时，检偏器旋转误差对非线性误差的影响很小；当存在偏振分光镜旋转误差时，检偏器旋转误差引起的非线性误差不增加二次谐波分量，但增大了非线性误差一次谐波分量，严重影响非线性误差的大小，当偏振分光镜旋转误差为3°时，检偏器旋转误差从0°增加到5°，非线性误差从0.14 nm增大到0.97 nm。

Furthermore, applying the deductive and comparative approach by the classification and organization of chord structure, harmonic progress and the tonality management in six chamber music. Stravinsky use pitches material on the basis of diatonic tone and pitch organizing principle on the basis of polytonality to form his unique harmonic language. Accordingly, we get the further understanding about Stravinskys precise and rational music creation style as well as his extraordinary arractive music language.

文章采用总结归纳和比较研究的方法，通过对六部室内乐作品在和弦结构、和声进行、调性处理等方面和声应用技术的梳理和分类，探讨斯特拉文斯基以自然音为音高基本材料，以多调性为音高组织原则而形成的独特和声语言，从而进一步理解斯特拉文斯基严谨、理性的创作风格以及个性化和极富魅力的音乐语言表达。

The results of the spectrum analysis show that the first wave in the harmonic waves is preponderate in the harmonic waves, the significant areas are North, Northeast, South-west and South of Chain, and the maxium values of amplitude occure in July and August.

对各站每年月雨日序列的波谱分析表明，我国大部分地区年周期的(第1谐波)振动在与其余波动比较中占绝对优势，显著地区是华北、东北、西南及华南地区，振幅最大值出现在7—8月份。

Using Extended Virial theorem , three recurrence relation of the average value of coordinate operator for linear harmonic oscillator, spherical harmonic oscillator and like-hydrogen ion were obtained respectively.

针对一维谐振子、类氢离子和三维各向同性谐振子三个量子体系，应用超维里定理，推导了幂坐标算符平均值的递推关系，方法较通常简洁明了。

The examples show that harmonic wavelet packets transform more excellent than dyadic wavelet transform, and more excel in noise filter based on Fourier transform in sampling rotating vector analysis about vibrational signal on the basis of harmonic wavelet packet transform is putted forward.

实例表明，谐波小波包变换对强噪声下信号的提取能力优于二进小波变换，更优于基于Fouriar变换的噪声滤波。

And second-harmonic content is large and third-harmonic content is low in secondery current in transient saturation state.

差动保护是变压器的主保护，具有动作灵敏，能快速切除故障的特点。

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。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"