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ResultsGC fingerprint of Origanum vulgare L. was obtained, and 22 common peaks were obtained.

结果用程序升温法得到了各色谱峰较好的分离,确定了22个共有峰。

It is proved that a signal can be decomposed into the linear superposition of a series of component signals by singular value decomposition using these two kinds of matrices. However, the component signals obtained by the first kind of matrix are orthogonal with each other, while those obtained by the second one are correlative with each other.

文中从理论上证明了在这两种矩阵方式下,奇异值分解都可以将信号表示为一系列分量信号的线性叠加,但是第一种矩阵获得的分量信号是彼此正交的,而第二种矩阵获得的分量信号则不具有正交性。

Firstly, a two-dimension tensor product space is constructed, in which reproducing kernel exists. Secondly a multiresolution analysis is constructed in the reproducing kernel space. Then an orthonormal basis in is obtained. Thus,the reproducing kernel space can be expressed by wavelets spaces. Wavelets approximation formula and sampling formula can also be obtained in the space. Besides, the wavelets approximation formula is simple and easy for calculation. That completes the theory of multiresolution analysis in finite interval fully and provides theoretical base and algorithm for application.

首先,构造二维张量积空间,并证明该空间具有再生核;其次在再生核空间中,建立多尺度分析,获得该空间的一个标准正交基,使得再生核空间可以由小波空间来刻画,进而得到小波级数和相应的采样公式,而且给出的小波级数形式简单易于数值分析,进一步完善了有限区间上的多尺度分析方法,也为实际应用提供了良好的理论基础和算法。

The functional relationship between displacement and sound pressure was deduced by using variational principle and Bessel function. Then the analytic solution of the eardrum displacement was obtained, and moreover the ear ossicle displacement was obtained.

由变分原理及贝赛尔函数推导出人工鼓膜位移与声压的关系,得到鼓膜位移的解析解,并由此得到听骨位移。

Taking HPAM solutions as an example, the unsteady flow of power-law fluid in eccentric annuli with the inner cylinder reciprocating axially is calculated; the distribution of velocity, flow rate and stability parameter is obtained; taking HEC solutions as another example, the flow of second order fluid in eccentric annuli with the inner cylinder moving axially is calculated too; the distribution of velocity and stress is obtained; the effect of eccentricity and axial movement on stress distribution on the outwall of the inner cylinder is analysed.

在理论上,分别用二阶流体和幂律流体模型描述聚合物驱油井产出液的非Newton流变性;分别建立了双极坐标系下二阶流体和幂律流体在内管做轴向往复运动的偏心环空中非定常流的控制方程及边界条件和初始条件方程;建立了幂律流体在内管做轴向往复运动的偏心环空中流动的稳定性参数和流体在内管壁上的压力分布计算公式;建立了二阶流体在内管做轴向运动的偏心环空中流动的流体在内管壁上的压力分布计算公式。

The welding of end ring of alternating current machine and the conducting bar is the key technology for manufacturing of asynchronous traction motor with high power. China South Locomotive and Rolling Stock Industry Corporation had taken this significative study as a key project for the manufacturing of alternating current machine. According to the welding of end ring of alternating current machine, the welding of copper and copper alloy is described in this paper. Results obtained in this study are as follows. 1.By the comparison of oxyacetylene gas brazing, induction brazing and resistance brazing, it was found that high-quality welding joint could be obtained by induction brazing, which also had the highest efficiency.

交流电机端环与导条的焊接是大功率异步牵引电动机制造的一项关键技术,开展其焊接工艺研究具有重要的意义,中国南车电机公司将此课题作为解决交流电机制造的一个重点项目,本文结合交流电机转子端环焊接的课题,对铜及其合金的焊接进行了研究,主要研究结论如下: 1、通过氧乙炔火焰钎焊、感应钎焊、电阻钎焊等焊接方法的对比试验发现感应钎焊可获得优质的焊接接头,且感应钎焊的焊接效率也是最高的。

This paper presents an evaluation method based on psychological scale. Rank-order method or method of paired comparison is adopted to sort the images retrieved by different algorithms, then an ordinal scale is obtained. With presupposition of normal distribution, an equal interval scale is also obtained though POZ conversion. Thus different algorithms can be compared on these scales.

本文提出基于心理量表的情感图像检索性能评价方法,采用等级排列法或对偶比较法对不同算法检索出的图像进行排序,建立顺序量表,并在样本满足正态分布假设的前提下,将顺序量表转化成等距量表,以比较检索算法的优劣。

One of the two parameter group can be obtained directly by taking its corresponding nonnegative functions to be zero and another parameter group can be obtained through learning according to its corresponding nonnegative functions—performance index.

其中的一组可调参数可通过令相应的非负函数为零直接求得,而与另一组可调参数相对应的非负函数就是用于这组参数学习的性能指标。

A series of conclusion about omnidirectional image are obtained. 5. Based on the correlation coefficient of periodic vein structure, through error correcting, a method to calibrate the camera is obtained.

以基于周期纹理结构的自相关系数的标准件标定法为基础,通过误差修正,得到了一种新的对照相机进行标定的方法,该方法使用简便,标定结果精度较高,能很好地用于生成完整的全方位全景图象。

A complete phase diagram is obtained;The scalingbehavior in the quantum critical region of the Néel phase boundary of the bilayerJ1-J2 model is obtained for the first time.

获得了此模型完整的相图,并第一次获得了此模型在量子临界区的标度行为。

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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?