比较函数

In this paper,the authors deeply discussed the relations between the extremum and the multiple roots for some types of functions,and researched how to use the relations in real world.

就一类函数极值与重根的关系作比较深入的探讨，并对这些关系作一些应用研究。

Up to this time, the major challenge to sign language recognition is how to develop approaches that scale well with increasing vocabulary size In this paper, an approach to large vocabulary, continuous Chinese sign language recognition is presented, which uses subwords instead of whole signs as the basic units Since the number of subwords is limited, HMM based training and recognition of the CSL signal become more tractable and have the potential to recognize enlarged vocabularies Furthermore, the proposed method facilitates the CSL recognition when finger alphabet is blended with gestures About 2400 subwords are defined for CSL One HMM is built for each subword, and then the signs are encoded based on these subwords A decoder that uses tree structured network is presented Clustering of the Gaussians on the state, language model and N best is used to improve the performance of the system Experiments on a 5119 sign vocabulary are carried out, and the correct rate is over 90% for continuous sign recognition

迄今为止，手语识别面临的最大问题是如何解决词汇集易扩充的连续识别提出一种大词汇量连续中国手语识别方法，将词根作为识别基元，由于基元的数目是有限的，因此基于HMM的手语信号的训练和识别变得比较容易处理，可以实现更大词汇量的识别除此之外，所提方法还有利于实现手势语和手指语的混合识别从中国手语中共整理出2 4 0 0多个词根，为每个词根建一个并行的HMM模型，对各数据流的HMM模型进行聚类，确定出手语识别的基元根据这些基元对手势词编码，并建立了树状搜索网格，使用状态结点上高斯密度函数聚类、语言模型和N Best方法提高系统的速度和精度对 5 119个手语词做了实验，连续语句的识别率可在 90 %以上

A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.

文摘：用比较直接的方法证明幂级数的和函数在收敛域内可以逐项微分的公式；并得到了计算傅立叶系数的一种简便方法。

The intensity of grating diffraction spectrum is obtained by the Fourier series expansion of the transmissivity function. Finally, the design feasibility is analyzed by comparing the minimum signal spectral intensity with the maximal spectral intensity of the background light and the noise intensity.

通过对透射率函数的傅立叶级数展开，得到光栅衍射谱线的强度，对信号光谱线的最小强度、背景光谱线的最大强度和噪声强度的比较，得到设计的可行性。

And each from of frequency respond to the curve are compared.

完全设计方法中我们利用函数直接设计出低通、高通、带通和带阻滤波器，并分别用巴特沃斯滤波器、切比雪夫滤波器、椭圆滤波器来实现，并比较了各自的频率响应曲线。

Simulations on a type of nonlinear function and a chaotic time series are studied. The comparison with the reference [7] is also given.

对一类非线性函数和混沌时间序列进行了仿真研究，并与文献 [7]的小波网络进行了仿真比较。

For example, in the set_of_relation specification, you can pass a Functor type that compares two types.

例如，在 set_of_relation 的规格说明中，你可以传入一个函数对象类型来比较两种类型。

For example, in set_of specification, you can pass a Functor type that compares two types.

例如，对於 set_of ，你可以传入一个函数对像类型来比较两个类型。

An optimal filter is designed specially for dq transform used in the voltage mea-surement of transfer switch,which is composed of lower-order notch filter and lower-order low pass filter with higher cut-off frequency in series.Its transfer function is presented by theoretical derivation.If the order is same,it is better in measuring the positive sequence of fundamental amplitude than the average filter and the low-pass filter.

针对转换开关电压检测法——dq变换设计了优化滤波器，该滤波器是利用低阶陷波滤波器和较高截止频率低阶低通滤波器串联形成的，通过理论推导给出了该滤波器的传递函数，在相同的滤波阶数下，该优化数字滤波器在提取基波正序幅值的性能比较中，优于平均值滤波法及低通数字滤波器法等。

This paper presents the speckle suppression technology which includes the soft threshold, the hard threshold and the Garrote function threshold method. It gives the contrast result of the three method. Analyzed the embedded zero-trees wavelet coding method, it presents a SAR image coding technology with the speckle suppression. Finally, it presents a compressed SAR image with the speckle suppression.

摘要该文讨论了相干斑抑制技术中软阈值、硬阈值和Garrote函数去噪的方法，并对这些方法进行了比较；文中在讨论了嵌入式零树编码技术的基础上，提出了采用基于相干斑抑制技术的图像编码方法，利用该方法实现了对SAR图像数据的编码处理，给出了相应的处理结果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。