positive sequence

An almost complete sequence of the RNA genome of tobacco necrosis virus ( TNV) strain A has been determined. Tobacco necrosis virus A is a positive-sense ssRNA virus, it contain six open reading frames.

烟草坏死病毒A（Tobacco necrosis virus A，TNV-A）是单链正义RNA病毒，它的全基因组序列已被测出，含有6个开放表达阅读框。

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The DC biasing current has been calculated in detail, which will go through the converter transformer winding in BTB DC system due to unbalance firing and the second harmonic voltage of positive sequence on the AC converter bus.

根据背靠背直流系统的技术特点，详细计算了由于触发不平衡和交流系统正序二次谐波在换流变压器中产生的直流偏磁电流。

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In order to control the positive sequence, negative sequence and zero sequence components independently, the last two control strategies based on bisynchronous coordinates are introduced.

为了实现对正序、负序和零序分量的独立控制，本文还采用了两种基于双同步旋转坐标变换的控制策略。

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The method only uses the positive sequence and negative sequence components of two terminal voltage and current.

该方法利用线路两端电压、电流的正序和负序分量，不需选代计算，并适用于一点故障情况。

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Normal operation voltages and currents at each terminal of line are used to calculate the positive sequence parameters of the line.

该算法利用正常运行时的各端口的电压、电流，在线计算线路的正序参数；

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The proposed method doesn't need hardware synchronization circuit and can perform the calculation of fundamental positive sequence component of the supply voltage in real time.

这种方法不需要硬件同步电路，能实时地计算电源电压中的基波正序分量。

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Sequenced positive phage clones, used a variety of bioinformatics software to analysis peptide sequence and found the broad spectrum of inflammatory chemokine binding peptide. 4.

将获得的阳性噬菌体克隆进行DNA测序，应用多种生物信息学软件将多肽序列进行比较分析，推导与炎性相关趋化因子广谱结合的的小分子十二肽。

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The Sequence Analysis of HBV S Gene Isolated from Both HBsAg and Anti-HBs Antibody Positive Blood Donors

乙肝病毒表面抗原和抗体双阳性者中病毒S区基因序列分析

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Study on Series Voltage Regulator Based on New Fundamental-Positive Sequence Calculation Method

基于基波正序计算方法的串联型电压调节器

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An improved I p-iq algorithm for detecting compensation reference current is mentioned. It can real-timely decompose the fundamental positive sequence active component of three-phase current, witch improves the speed and accuracy of compensation reference current detection.

提出了基于改进ip-iq法的补偿指令电流检测算法，该算法能实时地检测出三相电流的基波正序有功分量，提高了补偿指令电流检测的速度和精度。

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The zero sequence component and the positive sequence component equations of transmission lines are derived on the basis of telegraph equations.

运用电报方程推导出三线－地耦合传输线零序分量和正序分量传输线方程。

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A improved I p I q detecting method is put forward. In order to select phase A fundamental positive sequence voltage, a voltage selected unit based on low pass filter is used to replace the phase lock loop of I p I q detecting method.

之后提出了一种改进的ip-iq检测法，在该检测法中用基于低通滤波的A相正序电压提取单元代替原ip-iq检测法中的锁相环，以提取A相正序电压。

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