• 现场实验仿真证明器能够非常有效地抑制电网中的基波35,大大提高了双向工频通信信号检测能力

    Practical experiment and simulation show that The 3rd, 5th harmonic are suppressed effectively and the ability of detecting the signal of TWACS is improved greatly.

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  • 研究结果表明,螺旋线系统结构参数色散特性耦合阻抗影响非常复杂。

    As the research indicates, the structural parameters of the spiral curve slow-wave systems have complicated influence on its fundamental wave dispersion characteristics and coupling impedance.

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  • 利用分析模块畸变信号进行分析,较直观地得出情况

    Fundamental wave and harmonic condition can be found clearly by analyzing the distortion signal using the sub-module of harmonic analysis.

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  • 讨论正弦电压(电流)采样值直接进行变换计算基波、谐电压(电流)有效值频率方法

    It's discussed that the method of RMS and frequency measurements directly from the wavelet transform data associated with each sampling sine voltage (current) element pair containing harmonic.

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  • 本文在室温条件下木材表面自由进行了研究。

    The free radical spectrometer of wood surface was studied under ambient temperatures.

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  • 方法169输尿管结石患者进行基波显像组织显像观察。

    Methods The image quality of ureter in 169 patients with ureteral calculi was compared between tissue harmonic imaging and fundamental imaging.

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  • 目的:通过与基波成像(FI),研究自然组织成像(nthi)冠心病节段运动观察的改善情况。

    Objective: Compared to fundamental imaging (FI), we used native tissue harmonic imaging (NTHI) to improve image quality on regional wall movement of left ventricle in coronary disease.

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  • 材料方法:采用自然组织成像基波成像(FI64例患者的颈动脉硬化斑块进行比分析。

    Materials and Methods: Images obtained with NTHI from 64 patients were compared with that of fundamental imaging(FI)technique.

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  • 提出同步误差放大基波缩减方法获取参数变化敏感相关性小的加密变量

    The methods to amplify the synchronized error and to decrease the cross correlation are proposed to generate the encryption variables which are very sensitive to parameters.

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  • 原因进行了分析。

    The reasons for the carboxyl end group fluctuation of bottle grade PET base chips were analysed.

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  • 由于相位预处理抑制各次干扰,因而大大提高测量精度

    Moreover, since the all-phase preprocessing can suppress the individual harmonics' spectral interference on the fundamental wave, the accuracy is greatly enhanced.

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  • 缺点滤除一般只有80%,基波的无补偿也是一定的。

    Disadvantages for harmonic filtering rates generally only 80% of the fundamental reactive power compensation is also certain.

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  • 故障距离越远,电流、电压中的谐含量基波分量的影响越大

    The farther the fault location is, the larger the HF component will be.

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  • 故障距离越远,电流、电压中的谐含量基波分量的影响越大

    The farther the fault location is, the larger the HF component will be.

    youdao

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