频率

The stop band above the waveguide cut-off frequency can be controlled by tuning the varactors loaded between the arms of SRRs. Similarly, the pass band below the waveguide cut-off frequency can also be tuned by the same token.

在波导的截止频率之上，我们可以通过控制变容二极管的电容值达到控制禁带的目的，在波导的截止频率以下，我们依然可以通过改变变容二极管的电容来控制通带。

Following the concept of unstable frequency ,we propose a novel and simple method for solving the system′s uns.

分析了系统的稳定性，根据失稳频率的概念，提出了求解系统失稳频率的一种新颖而又简单的方法，并据此求出了失稳转速。

Furthermore the effects of the working frequancy of the B mode scanner probes on the texture parameters of B mode tomograms are discussed.

目的 研究在不同频率探头的情况下，同一种组织的超声纹理参数的变化，探讨B超探头的工作频率对B超图像纹理参数数值的影响。

For example, at frequency 5.1 GHz processor demonstrates performanceon the order of 1.63 teraflop, in this case the energy consumption reaches 175 W.

例如，在5.1千兆赫处理器频率显示为163DaAS表演，在这种情况下，能源消费达5.7千兆赫的频率在175个特约业绩达到1.81DaAS，能源消耗增长到265聚会后特约202等处理器，速度是可能达到的水平浮点计算巫比最强大超级计算机的日子，即用65536双内核处理器。

After years of research, direct method using transient energy function of power system has gotten important development, and has become the main method of time-fiend analysis. In chapter 2, basic theories of TEF method are introduced, and the EEAC method and its application in stability generator tripping control are discussed carefully. A lot of work still need to be done in order to make practical achievement.As a way to actualize this scheme, a new intelligent style under frequency and

多机系统频率动态过程是低频减载方案设计的重要依据，本文在原有线性化扰动模型基础之上，增加了发电机和负荷频率调节效应的影响，并进行了系统仿真研究**同时根据多机模型特点及仿真结果提出了一种基于多机系统的低频减载设计和整定新方案，与传统方案相比，该方案提高了低频减载性能及系统运行方式的适应性

Firstly, the mechanism of heat transfer enhancement by oscillation heat surface is discussed in natural convection scene. For different oscillation amplitude and Rayleigh number, the frequency that the heat transfer rate of oscillation heat surface is higher than non-oscillation condition is found and called critical oscillation frequency. The limitation enhancement of similar physical model is still researched by this study in mixed and forced convection scenes for different amplitude and Grashof number. Generally, that a heat surface subject to a oscillation motion is advantageous to convective heat transfer is a well-known tuition.

首先探讨在垂直管道内振动高温面於自然对流领域内提升高温面热传效率的机制，并且针对不同的振幅与雷利数求得加入振动条件后，高温面散热效果可以优於稳态非振动高温面散热效果的临界振动频率；进而探讨当垂直管道流进入混合对流与强制对流范围时，在不同的振幅与葛瑞秀夫数下，亦可发现加入振动条件后，振动高温面之散热效果可以优於稳态非振动高温面散热效果的临界振动频率。

Firstly, the mechanism of heat transfer enhancement by oscillation heat surface is discussed in natural convection scene. For different oscillation amplitude and Rayleigh number, the frequency that the heat transfer rate of oscillation heat surface is higher than non-oscillation condition is found and called critical oscillation frequency. The limitation enhancement of similar physical model is still researched by this study in mixed and forced convection scenes for different amplitude and Grashof number.

首先探讨在垂直管道内振动高温面於自然对流领域内提升高温面热传效率的机制，并且针对不同的振幅与雷利数求得加入振动条件后，高温面散热效果可以优於稳态非振动高温面散热效果的临界振动频率；进而探讨当垂直管道流进入混合对流与强制对流范围时，在不同的振幅与葛瑞秀夫数下，亦可发现加入振动条件后，振动高温面之散热效果可以优於稳态非振动高温面散热效果的临界振动频率。

This method sums a group of sinusoids to synthesize the speech signal, and the frequencies of these sinusoids are multiples of the fundamental frequency.

本算法采用叠加一组正弦波的方法来合成语音，这些正弦波的频率是基音频率的整数倍。

The analytic results showed frequencies of allele B or A and allele C were significantly different (P.01), while Taihe Silkies chickens and Baier chickens were different (P.05), it could conclude that the SNP may have relationship with thiamine content.

等位基因A和B的频率极显著高于等位基因C的频率，且泰和乌骨鸡与白耳鸡差异显著，故推测所检测到的基因座与肌肉硫胺素含量相关。

Statistics results showed that the genotype frequency of Anak red broiler was significantly different from Rugao yellow and Red jungle chicken, but there was no difference between Wenchang chicken and Silkies. All the breeds except Anak red broiler complied with Hardy-Weinberg equation.

统计结果显示：安卡肉鸡基因型频率的分布与如皋黄鸡、红色原鸡存在显著差异，文昌鸡基因型频率的分布与乌骨鸡差异不显著，除安卡肉鸡外所有鸡种均处于Hardy-Weinberg平衡状态。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。