非周期性

Most of the sequences are aperiodic with recurrence intervals varying from a few minutes to hundreds of days.

大部分相似地震的活动表现为非周期性，重复间隔从数分钟到数百天不等。

Recently, multi-fund investment choices Aperiodic industries, such as consumption, railway construction and other industries so as to avoid a slowdown in economic growth industry risks.

最近，多基金的投资选择非周期性行业，如消费，铁路建设和其他行业，以避免经济增长放缓的风险行业。

However, sounds that display a recognizable periodicity tend to be more musical than those that are nonperiodic.

与非周期性的声音相比，具有周期性的声音听起来要悦耳得多。

It may be periodic or nonperiodic, i.e., it may or may not exhibit a regular period of repetition.

它可能是周期性或非周期性，那就是说，它可能或者可能不呈现一规则的周期的重复。

In this paper, the precise parameters of transmission properties of the periodic defected ground structures and nonperiodic defected ground structures are obtained on the basis of FDTD analysis.

本文针对周期性缺陷接地结构和非周期性缺陷接地结构的传输特性进行了FDTD数值分析，得到了它们精确的传输特性曲线。

It gains better performance on periodical attacks over non-periodical attacks. IEEW is more suitable to DoS attacks. By constructing characters on normal flow, SMEW predicts unknown attacks with anomaly flow.Proposing an Intrusion Response Technical ArchitectureMost of active intrusion response technologies are covered.

前者依据特定攻击发生的历史规律，预测网络攻击的未来发生次数，同时分析了时间粒度对预测结果的影响，以及算法对周期性攻击和非周期性攻击的预测效果；后者通过建立正常流量测度指标，对新型攻击的发生进行预测。

In the last chapter of this paper, we compute and analyze different kinds of portfolio in Chinese "A share" market including low-profit, high-profit, seasonal and nonseasonal.

最后论文计算分析研究了中国a股市场中绩差股、绩优股、周期性股和非周期性股投资组合的在险价值。

The vibrometer system is small in size, low in cost, easy to be collimated, and used to non-contact measurement.

该仪器体积小、成本低、易于准直、可以非接触式测量，能够测量振动频率在50 kHz内的物体，其中包括非周期性振动。

The ANNs models of the periodic defected ground structures and a novel combinatorial nonperiodic defected ground structures with the characteristic of double stop band have been developed in this paper. The structure sizes of DGS and the frequencies are defined as the input samples of ANNs, the parameters of transmission coefficient calculated by FDTD method are sampled and defined as the output samples. For the PDGS with biggish structure sizes the transmission coefficients have the tiny dither owing to abnormal disturbance and the training samples have been smoothed by the least square method and five-spot triple smoothing method.

本文采用神经网络对周期性缺陷接地结构和一种新型的具有双阻带特性的组合式非周期性缺陷接地结构进行分析建模，将其结构尺寸和频率作为输入样本，对FDTD法计算出的传输系数参数进行抽样并将抽样结果作为输出样本，然后采用贝叶斯正则化算法对神经网络进行训练。

The results show that a the variation of annual mean runoff of Huayuankou section exist an intrinsic dynamic mechanism, which is the results of joint action of affecting factor of periodicity and non-periodicity, having obvious chaos characteristic; b the correlation dimension of attractor of phase space is 5.09 and saturation inserted dimension is 14. It shows that to establish a mathematical model of the annual mean runoff system of Huayuankou at least requires 6 independent variables and the required saturation inserted dimension for rebuilding phase space is 14; c the steady estimate of Kolmogorov entropy is 0.14, showing the average predictable time of the annual mean runoff variation of Huayuankou is about 7 years and; d using nonlinear deterministic chaos model is more suitable to describe the variation of annual mean runoff of Huayuankou.

结果表明：①花园口年平均径流量变化存在着内在动力学机制，是由周期性和非周期性影响因子共同作用的结果，具有明显的混沌特性；②相空间吸引子的关联维为5.09，饱和嵌入维数为14，这说明要建立花园口年平均径流系统的数学模型，至少需要6个独立变量，重构相空间所需要的饱和嵌入维数为14；③Kolmogorov熵的稳定估计为0.14，说明花园口年平均径流量变化的平均可预报时间大约为7年；④用非线性确定性的混沌模型比完全的随机模型更适于描述黄河花园口年平均径流量的变化。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。