查询词典 spectral

Some stochastic Galerkin methods, combining the Askey polynomial chaos expansion for the stochastic inputs and the spectral method in the physical space, are proposed to approximate some popular model problems.

研究的算法基于随机方向上的Askey正交多项式谱分解和物理空间方向上的谱方法。

By using SP-2558 multifunctional spectral measuring system, the three-dimensional fluorescence spectra of ponceau 4R, amaranth, tartrazine, sunset yellow and brilliant blue were measured.

应用SP-2558多功能光谱测量系统，测得胭脂红、苋菜红、柠檬黄、日落黄、亮蓝等五种最常用的合成食品色素标准溶液的三维荧光光谱。

By examining RLS spectral features of four systems including Al3+-DNA, azoviolet-cationic surfactants, fast red VR-proteins, ponceau G-proteins in this thesis, and proved that the instrumental conditions of spectrofluorometer have strong effect on the shape of resonance light scattering spectra.

本文在讨论Al~(3+)-DNA、镁试剂Ⅰ阳离子表面活性剂、固红VR-蛋白质、丽春红G-蛋白质四个体系的RLS光谱特征的基础上，证明荧光分光光度计的仪器条件和样品的分子吸收等因素会影响共振光散射光谱的形状，降低检测的灵敏度。

Potassium chloride crystal ; potassium bromide crystal ; xenon ion implantation ; color centers ; spectral parameters

氯化钾晶体；溴化钾晶体；氙离子注入；色心；光谱参数

Numerical method of the power spectral density.

功率谱密度的数值计算方法。

This is a wavelet of noisy signal filtering procedures, procedures also include the power spectral density analysis.

这是一个用小波对含噪信号进行滤波处理的程序，程序中还包括了功率谱密度分析等。

With the same noise level, white noise has the most striking effect. And the effect of noise is weakened with the increase of power spectral exponent a.

在同一噪声水平下，白噪声的影响最为显著，随功率谱指数α的增大，其影响逐渐减弱；随着噪声水平的增加，1/f噪声对计算混沌动力系统最大Lyapunov指数的影响越显著。

The distortion of the spectral density function caused by using class C amplifieation in pre-amplifier are analysed.

此外，本文还就在前置放大器中使用丙类放大器对谱分析结果所造成的失真作了分析。

The software can preform primitive data collection, spectral analysis,...

开发的软件具有原始数据采集、能谱分析、含量与储量计算等功能。

Comparison of Figure 1, the actual ink absorption curve and ideal absorption curve vary greatly, that is, they should not only absorption spectral absorption of light in the region, and also took in a different light spectrum, in the region, and it's caused by harmful absorption is the direct consequence of hue and saturation of the ink and the larger the gap between the ideal primary colors, but cards and card making products is using the ink features hue and differenc, the ink color performance advantages and disadvantages of a direct impact on original lifelike.

如图1的比力来看，油不朱的本质汲取弧线和抱负的汲取弧线差别很大，也不离是它们不仅汲取不该汲取的平谱不天区边的平芒，也汲取了其他平谱不天区边的平芒，而这栽无益汲取变不败的间接不败果不离是油不朱的色相和饱和度与抱负不一原色差距较大，而制卡和会员卡制作品不离是用油不朱来表示色和解条理的，因此油不朱的呈色本能机能的短长间接感化到草稿复制的传神水平。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。