周期分类

Results First, locomotor activity , total and differential leukocytecount as well as serum level of IgG in mice were distinct with different light-dark cycles except for acidophile and monocyte count .

结果 (1)不同的光暗循环周期下，除嗜酸性和单核细胞外，小鼠活动性、白细胞计数及分类、血清IgG的大小不同。

Other useful categories include those of periodic or aperiodic signals and random or deterministic signals.

其他有用的分类包括周期信号和非周期信号，随机信号和确定性信号。

In this paper, a survey of research in catching-up and technology learning process is given firstly.

一般认为，技术创新型式指技术生命周期中、产业市场范围内具有普遍意义和阶段性特征的企业创新行为分类。

First of all, it studies the definition, classification, characteristics and its life cycle.

首先对知识的定义、分类、特征和知识的生命周期进行了研究。

N[1] and[2], the classification theory of indices set of irreducible nonnegative matrices isstudied,according to that theory . An algorithm for the period and the classification of indices setof irreducible nonnegative matrices are given. Using this algorithm.

文［1］和［2］讨论了不可约非负矩阵指标集的分类理论，在此基础上，本文给出了不可约非负矩阵的周期与指标集的分类算法，这一算法能同时求出周期与同余类，当矩阵的阶不大时，该算法容易在图上实现。

For describing sampling system of mechanical equipment, the analysis method based on long period and phase diagram is used.

对机械设备采样系统提出了采用相图和长周期分析的方法，将相图和周期分析思想引入机械设备系统分类描述。

The computational complexity has been reduced about 5 times over against the original one. Moreover, the interpolation and quantization processing of CW is more reasonable; 2. A secondary power normalization algorithm is proposed in this dissertation. This normalization algorithm ensures that the energy sum of SEW and REW is 1. So, the energy ratio of SEW and REW can be achieved only by using SEW energy. This ratio is applied in REW quantization and CW composition; 3. For more efficient quantization for Slowly Evolving Waveform magnitude, Rapidly Evolving Waveform magnitude and power parameters, firstly, by applying the Equivalent Rectangular Bandwidth theory, classifiable multi-codebooks method, analysis-by-synthesis approach and so on, a predictive AbS multi-codebooks SEW magnitude quantization scheme is proposed. In the scheme, pitch information is exploited to determine which codebook is searched; secondly, for REW magnitude quantization, this dissertation proposed a DCT-matrix multi-codebooks quantization scheme. The classification in muti-codebooks is based on pitch and quantized SEW power. The multi-codebooks structure may offer more the information in quantization and solve the problem of the bit requirement limits in quantization by consuming some extra storage space; Furthermore, for the switch quantization of CW gain, a new classified parameter is proposed.

本文的主要贡献体现为如下几方面：一、为了减少WI模型的计算复杂度，提出了基于快速傅立叶变换、三次B样条插值和周期延拓技术的特征波形(Characteristic Waveform，CW)表示和对齐的快速算法，与原方法相比，计算量下降到原方法的1/5，同时也使得CW在插值和量化时更合理；二、为了严格保证SEW与REW的能量和为1，提出了一种特征波形的二次功率归一化算法，仅需要SEW能量就可以算出二者的能量比，并可应用到后续的REW的分类量化和CW合成中；三、为了对慢渐变波形(Slowly Evolving Waveform，SEW)幅度、快渐变波形(Rapidly Evolving Waveform，REW)幅度和特征波形功率进行有效量化，本文首先采用临界频带理论、分析合成技术、感觉加权技术以及预测式矢量量化技术，提出了一种基于基音周期分类的SEW分析合成预测式多码书量化方法；其次，本文根据基音和量化后SEW的功率信息对REW幅度进行分类，提出了一种基于离散余弦变换的REW矩阵多码书量化方法。

Moreover, combining with dynamic trajectory simulation of different kinds of aircraft with atmosphere perturbance models, a software package of radar signatures prediction and analysis is presented.

二、分析了活动部件周期调制特征产生机理和频谱结构特点，并通过建立通用仿真模型描述直升机旋翼，螺旋桨以及喷气引擎压缩叶片的动态电磁散射现象；针对活动部件周期调制，阐述了自相关特征提取和子波包特征空间变换的基本原理；并利用模糊模式比较完成基于空中目标活动部件周期调制特征的分类识别试验，给出识别结果。

This algorithm is bases on that the number of period constraints of a circuit is great larger than that of non-negativity constraints on pracitical circuits. At first, we classify the pathes, and then compute the bounding of the retiming value.

接着根据实际电路中周期约束远远大于权重约束的情况，提出一种减少周期约束的算法，算法首先将路径分类，由不同路径来确定重定时值的取值区间。

Summary: meaning of economic cycle, classification of economic cycle.

概述：经济周期的含义，经济周期的分类。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失