positive series

Analysis in time domain based on Jones matrix theory is given for the synthesizer. The algorithm comparing of Fourier series coefficients in positive-direction is used to design the synthesizer producing other types of periodical waveforms in time domain.

利用琼斯理论对该综合器进行了理论分析，根据扩展傅里叶级数系数正向对比法，实现了其他类型的周期性时域波形。

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The Time Series Cross-Section Regression-TSCS results show that investment inputs have positive effects on revenues, but their growth does not.

融合时间序列与横剖面模式之分析结果显示，资本投入只对营业额有正向影响，但其变动量并不具任何影响性；

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The comparison of antibacterial effects with silver series antimicrobial showed that the synthesized titanium phosphate had a stronger antibacterial performance toward gram-positive bacteria.

与银系列抗菌剂抗菌效果的比较证明合成的磷酸钛对革兰氏阳性菌具有较强的抗菌性。

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For this normative judgment, the paper, using modal and time series analysis method, made a positive analysis.

对于这一规范经济学论断，笔者运用数理分析与计量经济学分析方法从实证的角度进行了验证。

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This paper gives a new test for series of positive terms, and extends D' Alembert method.

对正项级数审敛中常用的达朗贝尔比值法作了补充，给出了一个新的审敛法。

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The ratio test and the root test are two widely used convergence tests for positive series.

比式判别法和根式判别法是对正项级数收敛性进行判别的两种广用的方法。

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