1、

Considers the harmonic method easy and simple in use in contrast with the response factor method. But two questions require attention, i.e. the calculation of the cooling load from the steady part of radiant heat gain and the determination of harmonic order for high precision of calculation.

认为与反应系数法相比,利用谐波反应法计算空调负荷简便,但在计算中应注意辐射得热中稳定得热形成的冷负荷的计算及谐波阶数的选取问题。

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We show that the efficiency of high-order harmonic generation ( HHG) in two-color laser field can be enhanced, and analyze the mechanism of the enhancement of HHG.

数值结果显示添加6倍频光的双色激光场能使高次谐波转化效率明显提高。

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4、

The method of harmonic current injection of three-phase rectifier is realized in order to reduce the influence of harmonic current in the three-phase rectification circuit.

为了减少整流电路中电流谐波的影响,实现了一种基于80C196KC单片机控制的三次谐波电流注入滤波方法。

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5、

We've done this before& this is the conservation of energy, and in order to find the period of the simple harmonic oscillation, we take the time derivative.

以前算过-,这是能量守恒,为了算出,简谐振荡的周期,我们求时间导数。

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6、

At the same time, harmonic suppression and general frequency domain feature are analyzed in order to master the measurement system frequency domain characteristic.

这种新算法成功地应用于自行开发的在线检测装置中。为了掌握测量系统频域特征,还从谐波抑制和总体频域特性两方面做了分析。

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7、

Second harmonic injection for restraining third-order intermodulation in traveling wave tube

行波管中二次谐波注入对三阶互调的抑制

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8、

In order to save soil resources and reduce building principal part structure engineering cost, finite difference method, harmonic wave method and response coefficient method have been utilized to analyze the unsteady thermal characteristics of wall insulation in low energy consumption building.

为节约土地资源和降低建筑主体结构工程造价,采用有限差分法、谐波法和反应系数法对节能建筑复合墙体的非稳态热工性能进行全面分析。

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9、

On this basis a separation test is carried out on fine artificial ore samples in a laboratory shaking sluice with simple harmonic motion in order to verify the results of the theoretical analysis.

并进一步利用作简谐运动的实验室摇动溜槽进行细粒人工混合矿的分选试验,以验证理论分析所得的结果;

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10、

in order to detect the harmonic currents, reactive power and negative-sequence currents in traction power system, two detecting methods based on fbd-method, direct-and indirect-method, are proposed in this paper.

为了检测电气化铁路供电系统中的谐波、无功和负序电流,提出了两种基于FBD法的实时检测方法:直接法与间接法。

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11、

Furthermore, we studied the characteristic of the third-order nonlinear ( TON) interaction in the third harmonic generation.

在光束传输的基础上,我们还研究了三次谐波转换过程中三阶非线性效应的作用及特点。

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For the signals with various harmonic components, the definition of the average power in the time domain and the first-order Taylor formula on sinusoidal function are used to develop an analytical expression for the measurement error and a correction formula.

该方法以含谐波的电气信号功率测量为例,从时域平均功率定义出发,采用正弦函数的一阶Taylor展开,推导出因非整周期采样造成的测量误差的解析表达式和相应的修正公式。

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The most attractive one is high order harmonic generation ( HHG), which can be used as a source of extreme ultraviolet ( XUV) and soft X-ray lasers.

其中高阶谐振的产生,由于可以作为产生真空远紫外线和软X射线的可能途径,受到人们的极大关注。

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High order harmonic generation ( HHG), as one of nonlinear phenomena of intense lasers-atom/ molecular interactions, is a hot topic in recent years.

高次谐波,作为强激光脉冲与原子分子相互作用的非线性现象之一,近年来一直是国内外科学家研究的热点。

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Compensation for effect of third-order nonlinearity on second harmonic generation of ultrashort pulses

超短脉冲倍频中三阶非线性效应的影响及补偿

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The behavior of an atom in strong laser field and the dynamic process of high-order harmonic generation ( HHG) are analyzed with the quantum theory and saddle-point method.

利用量子力学理论和鞍点方法,细致地研究了高次谐波辐射光子的能量与激光相位的关系。

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17、

We study the effects of pulse shape and static electric field on ionization and high order harmonic generation ( HHG) of a one dimensional model hydrogen atom.

采用数值方法研究静电场和不同的激光脉冲对氢原子的电离率和高次谐波的影响。

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The control of quantum path has applications in a wide range, which include high order harmonic generation ( HHG) and attosecond pulse production, the ultrafast imaging in biology, tomographic imaging of molecular orbitals and molecule alignment.

量子轨道的操控有着极为广泛的应用,这包括高次谐波及阿秒脉冲的产生,生物学的快速成像,分子轨道断层成像,分子排列等等。

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It is well-known that the interaction of intense laser field with atoms and molecules can lead to high-order harmonic generation ( HHG). Coherent sources of radiation in XUV and x-ray regions can be obtained by HHG.

当高强度的激光场与原子或分子相互作用时可以产生高次谐波,人们可以利用高次谐波获得相干极紫外高频段辐射源XUV和X射线源。

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Study on the third harmonic generation induced by the second-order cascading in nonlinear photonic crystal

光子晶体中二阶非线性过程产生三次谐波的研究

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