• 气压差及镉浓度波可使噪音增大很多倍,浓度波主要增强了低频噪音。

    Pressure difference and Cd concentration fluctuation may cause the noise to increase many times with the latter mainly enhancing the noise in the low frequency range.

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  • 应用小波分析研究了外循环反应器浓度波这类非平稳拟周期信号的特征。

    The characteristic of the concentration wave in the RTD of out-circular reactor, which is a nonstationary quasi-periodic signal, has been investigated with wavelet analysis.

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  • 当传感器发现粉尘浓度达到了临界水平,就有一定的电荷促使该材料发出除尘波越过其表面。

    Sensors detect when dust concentrations reach a critical level and then an electric charge energises the material sending a dust-repelling wave across its surface.

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  • 利用耦合波方程,对两段式DF B激光器进行理论分析,得出了激光器激射工作时两段载流子浓度和激射波长之间所满足的隐含表达式。

    Based on coupling-wave equation, two-segment DFB lasers have been analyzed, and implicit expression of their carrier density and emission wavelength has been obtained.

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  • 并且尘埃等离子体层对电磁波的衰减随尘埃粒子浓度以及尘埃粒子半径的增大而明显增强。

    The attenuation of the electromagnetic wave from the layers of the dust plasma increases with the increase of density and size of the dust grain.

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  • 采用新示踪剂钼酸铵,并对高、低不同浓度的钼样品进行比色法和示波极谱法分析。

    New tracer ammonium molybdate was used and samples with high or low concentration of molybdenum were analyzed by means of colorimetry and polarography.

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  • 本文用特征线法研究了碱水二维渗流的对流模型,给出了碱水浓度非线性波传播公式。

    We study the two-dimensional model of alkaline pulses by using the method of characteristics. The formulae of the nonlinear concentration waves are presented.

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  • 指出微粒的质量浓度与波许烟度的不同。

    The difference between particle mass concentration and Bosch smoke number is indicated.

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  • 介绍一个计算连续波hf化学激光器浓度场的简化模型。

    A simplified model for calculating concentration field of diffusion-type CW HP chemical lasers is presented.

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  • 随缓蚀剂浓度升高,振荡波的周期变长,振荡减弱;

    The higher the concentration of the organic inhibitor, the longer the period is and the feebler the oscillations is;

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  • 我们首次描述了在高浓度的掺铒光纤中采用铒增益与四波混频效应获得多波长掺铒光纤激光器。

    We demonstrate a multi-wavelength erbium-doped fiber laser (EDFL) using erbium gain and four-wave mixing (FWM) effect in a piece of erbium-doped fiber (EDF) with high erbium ion concentration.

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  • 研究了系列不同掺杂、不同掺杂浓度、单掺杂和双掺杂以及不同后处理态(生长态、还原态和氧化态)铌酸锂晶体的透过率光谱和光折变二波耦合效应。

    The experimental results show that the optical transmission spectra range and two-wave mixing gains are smaller in the high doped LiNbO_3 crystals.

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  • 研究了系列不同掺杂、不同掺杂浓度、单掺杂和双掺杂以及不同后处理态(生长态、还原态和氧化态)铌酸锂晶体的透过率光谱和光折变二波耦合效应。

    The experimental results show that the optical transmission spectra range and two-wave mixing gains are smaller in the high doped LiNbO_3 crystals.

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