周期图

First, the system looks for a slow drift in demand (Figure 5, rule 1 ). The system recognizes a slow drift in demand if there is a run of 4 or more points above or below the mean demand.

第一，系统会寻找需求曲线上的偏移（图5，rule1），一旦在某一周期内有4个或者更多的点出现在平均需求曲线以下，系统将其识别为一次偏移。

Comparative acidification potentials for the full life cycle are shown in Fig.

比较酸化电位的完整生命周期是显示在图5。

Acidification potential Comparative acidification potentials for the full life cycle are shown in Fig.

酸化潜在比较酸化电位的完整生命周期是显示在图5。

Aiming at the signal processing problems that exist in online fault diagnosis for train running gear, based on discussing the principle of characteristic spectrum analysis, a method of full period and uniform angle sampling is applied, which transfers the vibration signal from time domain into angular domain. The angular domain signal is transferred into corresponding characteristic spectrum using FFT. Through spectrum estimation and analysis, fault characteristic spectrum values of running gear components are acquired to distinguish their faults.

在讨论特征分析方法原理的基础上，针对机车走行部故障在线监测过程中存在的信号分析与处理问题，运用整周期等角度采样方法将时域振动信号转换为角域信号，采用FFT变换将角域信号变换为对应的特征频谱，通过谱估计、谱图分析得到机车走行部各零部件的故障特征谱值，再根据该特征谱值识别机车走行部各零部件的故障。

Secondly, a series of computer programs have been developed and verified according to the deterministic chaos theory and algorithms. These programs are deterministic chaos qualitative analysis tools including phase plots and Poincare section analysis software packages; deterministic chaos quantitative analysis tools including the largest Lyapunov exponent, correlation dimension and Kolmogorov entropy analysis codes and classical analysis such as power spectrum, autocorrelation coefficient and Hurst analysis programs.

其次，根据确定性混沌分析技术主要内容的算法思想，自行开发了相图、Poincare截面等定性分析程序软件包；最大李雅普诺夫指数、关联维数和K熵等定量分析程序软件包以及非线性混沌预测程序软件包；同时，还开发了功率谱、自相关系数、Hurst指数等传统分析技术程序软件包；并运用三种典型的周期运动、混沌运动及随机运动时间序列数据，验证了开发的程序。

The influences of decay coefficient of the cavity and the intensity of the field on the phase distribution as well as its fluctuation are discussed.The results show:if there is absence of the phase damping,the phase distribution oscillates with the period π/λ.It presents single leaf at t=nπ/λ,but it splits into multi-leaf construction during the evolution period due to the interaction between the field and the atoms.

结果表明：当腔不存在损耗时，光场相位分布概率以π/λ作周期性振荡；且在t=nπ/λ时刻，光场和原子是退纠缠的，相位分布概率曲线在极坐标图中呈单叶型结构；但在演化周期内，由于光场与原子的相互作用相位分布概率曲线会劈裂为多叶型结构。

In this menu, you can start a cycle and visualize the resulting real time chromatogram.

在这个菜单里，你可以起动一个分析周期，并查看最终的实时色谱图。

The blood flow imaging including pulsative index and resistant index of uterine artery were measured to investigate the caus e of female infertility by using color Doppler energy. Abdominal CDE exami nation was carried out in 67 women with infertility confirmed under laparoscopy on days 20 to 23 of the menstruation.

利用彩色多普勒能量图测定子宫的血流，即血流的脉冲指数（pulsative index，PI）及阻力指数（resistant index，RI）来探索不同原因的女性不孕症。67例不孕症妇女经腹腔镜诊断确诊不孕原因后，于月经周期第20～23 d 作腹部B超彩色多普勒能量图检查。

Department of Obstetrics and Gynecology, Tongji Hospit al, Tongji Medical University, Wuhan 430030Abstract: The blood flow imaging including pulsative index and resistant index of uterine artery were measured to investigate the caus e of female infertility by using color Doppler energy. Abdominal CDE exami nation was carried out in 67 women with infertility confirmed under laparoscopy on days 20 to 23 of the menstruation.

利用彩色多普勒能量图测定子宫的血流，即血流的脉冲指数（pulsative index，PI）及阻力指数（resistant index，RI）来探索不同原因的女性不孕症。67例不孕症妇女经腹腔镜诊断确诊不孕原因后，于月经周期第20～23 d 作腹部B超彩色多普勒能量图检查。

To overcome the drawbacks in the weight and cost of the antenna with the corrugated soft surface, a new patch antenna with patch rings is designed. Its weight is about 1/4 less than the antenna with the corrugated soft surface and it is inexpensive. Good experimental results are obtained. The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. In conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic-bandgap structures.

为了克服皱褶软表面天线份量重，加工费用贵等缺点，我们对空气介质的皱褶圆环结构软表面天线进行了改进，将周期分布的皱褶圆环平面化，并保持结构的软表面特性，设计出了一种新的平面圆环结构的软表面天线并进行了实验研究，加工的平面圆环结构天线比皱褶圆环结构天线重量减轻了约1/4，加工费用大大降低，所取得的实验结果显示，该平面圆环结构软表面天线的方向图的轴对称性得到了改善，在俯仰角从0°～-90°的范围内天线H面的波束与E面重合，与皱褶圆环结构相比，天线的旁瓣和背瓣受到了更大的抑制，E面方向图上+120°方向的旁瓣被明显削弱。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。