循环图

The basic theory of cyclic statistics and the demodulation principle of cyclic autocorrelation function are introduced.

论文提出了利用循环统计量诊断往复式压缩机的方法，介绍了循环统计理论和循环自相关函数解调原理，利用仿真技术检验了循环统计方法的有效性，并分别对仿真信号和实测信号建立了循环谱密度三维图。

ABSTRACT To improve the parametric design method which is based on points, lines and circles, this dissertation presents the theory and methodology of parametric design which is based on relating-graph. The expression, organization, cyclic problem, covariation and extension method of relating-graph are studied.

针对当前二维参数化方法中存在的考虑线素较为简单、循环约束问题较难解决等一系列问题，本文系统地研究了基于高层次图素的关联图形的表达、关联图形的组织、关联图形循环约束问题的解决、关联图形的联动以及关联图形的拓广等方法。

The results show that the periodic average yield of acrylonitrile under any forced periodic oscillation of oxygen concentration among this experimental conditions,thus obtained could higher than that under the steady-state condition.

而为完成整个氧化还原循环过程，气相氧分子就必须在不同丙烯吸附中心的再氧化中心上吸附，获得电子，解离后扩散进入催化剂中的阴离子孔穴，如图1所示。从该机理可知，反应气氛中的氧烯比大小对催化剂表面的氧化还原反应过程的循环有重大影响。

Evaluation of circulating NO-metabolites indicated that the most likely candidate transducer of extrapulmonary effects of iNO was circulating nitrite.

循环无代谢产物的评估表明，可能性最大的iNO肺外影响传感器是循环性亚硝酸盐（见图1）。

Similarly, the Digital Indicator in the loop in Figure 6.7 will update during each loop iteration.

同样地，在图6.7中循环中的Digital Indicator将在每次循环重复时刷新。

Second, this dissertation analysises the performance of TA cyclospectrum estimation, and derives the averaged cyclic periodogram which can make the variance to be reduced.

第二，本文分析了TA(Time Aliasing，时间重叠)循环谱估计方法的性能，并推导了使方差得以减小的平均循环周期图方法。

The bias of cyclic periodogram with ssinc window is analyzed in both spectrum frequency direction and cycle frequency direction, and that the TA cyclic spectrum estimation is unbiased is proved.

通过分析加ssinc窗的循环周期图在谱频率方向和循环频率方向的偏差，分析了TA循环谱估计是无偏估计。

Second, to eliminate a special class of cycles in QC-LDPC codes, we considerQC-LDPC codes with circulant permutation matrices as protograph LDPC codes. Andwe reveal the relationship of cycles in a protograph LDPC code and its mother matrix.

其次，为了消除准循环低密度奇偶校验码中一类特殊的环，我们把由循环置换矩阵扩张得到的准循环低密度奇偶校验码看做一类原图低密度奇偶校验码。

As a result, distorted responses were observed in ac and ER voltammograms, and the real and imaginary parts in ER voltammogram changed in different ways during potential sweep. The differences between the forward and the reverse scans in the cyclic ER voltammogram reflected the extent of the loss of the reoxidation activity of the film.

因而，在ER和交流伏安图上观察到不同程度的信号变形；在电位扫描过程中，ER伏安图上的实数和虚数部分发生不同的变化；而ER循环伏安图上正反扫的差异变化反映了沉积膜重新氧化活性损失的程度。

The Bucher diagrams of the Carnot cycle are used to present vividly three-heat-source cycle s.

应用卡诺循环的Bucher图形象地表示出三热源循环，并由图中的相似三角形直接导出三热源循环的能量守恒方程、熵守恒方程和性能系数。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。