查询词典 spectral density

The results were as follows:(1) The spectral sensitivity response at 14 monochromatic light selected through 340nm to 605nm occurred in curve with multiple peaks, the primary peak in 340nm (ultra-violet) is the highest response rate of phototaxis (21%), the secondary in 524nm, and the rest in 400-440nm and 483nm in order;(2) The response rate of phototaxis is increasing as the relative intensity of light, it is showed as curves with inverse "L" shape in white light and the monochromatic light of 483nm, as an upward ladder at 524nm and a near straight line at 340nm. However, the response rate could be detected at the lowest intensity and not arrived to the summit at the strongest yet;(3) The effect of sex to response to the spectral sensitivity and intensity is not significant;(4) There was not significant photophobism response to light for the ladybird, the behavior probably derived from phototaxis or partly due to random movements. It can be concluded that both the spectrum and intensity of light stimulus gave rise to the phototaxis of P.

结果显示：（1）在340~605nm波谱内其光谱趋光行为反应为多峰型，峰间主次不明显，紫外340nm处峰最高，趋光反应率达21%，其它各峰依大小次序分别位于绿光524nm、蓝光400~440nm和483nm处；（2）随光强增强其趋光反应率增大，白光和483nm刺激时其光强趋光行为反应呈一倒"L"型式样，524nm时呈一阶梯型，340nm时为一较平直的线型；光强最弱时仍均有一定趋光率，最强时均未出现高端平台；（3）性别对其光谱和光强度行为反应均有一定影响，但影响不大；（4）龟纹瓢虫无明显的避光反应，其避光行为可能是趋光行为衍生或其随机活动造成。

By using the polar decomposition, spectral decomposition, the spectral theory of operators, the intersection of the spectra of operator completions are obtained.

5深刻研究缺项算子矩阵Mx存在逆补的一般性条件，并获得了补矩阵Mx的所有预解集交集的特性。

The result shows that ponceau 4R has four obvious fluorescence spectral peaks respectively located at 420,530,635 and 687 nm,each of these fluorescence spectral peaks has different best induced light,and the corresponding fluorescence spectra were listed.

文章分别从理论与实验上对220-400 nm不同激发波长下胭脂红标准溶液的荧光光谱进行了分析，结果表明，胭脂红可以产生较强的荧光，分别在420，530，635，687 nm波长处产生了4个荧光峰，各荧光峰的最佳激发波长也不尽相同，文章给出了相应的荧光光谱图。

As a result, noticed increased spectral response curve and filters the difference between spectral characteristics are very important.

因此，注意到密度计的光谱反应曲线与滤色片的光谱特性之间的不同是非常重要的。

The framework of the spectral theory for infinite dimensional Hamiltonian operators is construted in this project, and the relationship between semigroups of the operators and the spectral properties of the operators is found out, which is the basis of extending the separation of the variables method.

中文摘要：本项目建立了无穷维Hamilton算子的谱理论框架，揭示了其谱分布情况以及算子半群的联系，为拓宽分离变量法的应用范围提供了理论基础。

According to the computational stability analysis conducted to the linear term time difference scheme in simple harmonic motion equation, one new semi-implicit integration scheme also is designed. By adopting a kind of revised time-explicitdifference scheme to these linear terms still included in spectral model governing equations, this defect of spectral model only partly used in semi-implicit integrating scheme, can be overcome to some degree.

以简谐振动方程中线性项时间差分格式对其计算稳定性影响为理论依据，本文设计了一种新谱模式半隐式时间积分方案，此方案通过对一般谱模式求解框架中那些隐含的线性项采用了一种显式修正的差分格式，可有效克服其国际谱模式半隐式时间求积方案实质上只是部分应用了半隐式差分格式的问题。

In the solution of the Difichlet boundary problem ofLaplace equations, we provide an effective method for determining the spectral radiusand the best slack variable of block basic iterative methods. At the same time, wepresent the spectral radius and the best slack variable of basic iterative methods from thenine-point difference scheme.

在解决Laplace方程Dirichlet边值问题上，文章为确定块基本迭代方法的谱半径和SOR方法最优松弛因子提供了一个有效的方法，并推导了九点差分格式下的块基本迭代方法的谱半径和SOR方法最优松弛因子。

Based on theoretical model,the effects of spectral decomposition by MP algorithm was discussed,and compared to the spectral decomposition results of Gabor transform and wavelet transform.

阐述了基于Ricker小波MP算法的基本原理，给出了两步法MP快速算法的实现步骤。

Shapes of spectral distributioncurve in pure Kuroshio region and coastal waters are obviously different.Some inflectionpoints in spectral distribution curve appear at wavelength bands of 412,443,490,520,550,555 and 670nm.

黑潮域与沿岸水的水中辐射光普曲线之形状呈显著的差异，并使得水中辐射照度分布曲线於412、443、490、520、550、555及670 nm波段处出现了屈折点。

A novel method of calculating spectral response function is proposed for color scanner, which combines polynomial fitting and spectral response function fitting methods.

提出一种结合曲线拟合和光谱响应的计算法，保证了计算结果收敛，而且具有较好的计算精度。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。