谱性

The results show that the positive solutions are closely related to the spectral properties of certain differential operators of Schrodinger type.

结果表明，这些正解的存在性与一类Schrodinger型微分算子的谱性质密切相关。

The composition of the SiGe thin films were controlled by changing the ratio of the area of silicon and germanium. By changing the parameters of substrate temperature and annealing temperature, we examined the microstructure, composition, crystallinity, electrical and thermoelectric properties by field emission scanning electron microscope, X-ray photoelectric spectroscopy, secondary ion mass spectrometer, X-ray diffraction, Hall effect and Seebeck coefficient measurement.

利用改变矽锗靶材面积比例进行薄膜成份的控制，并藉由改变基板温度以及退火温度之制程参数，利用场发射扫描式电子显微镜、化学分析电子能谱仪、二次离子质谱仪、X光绕射仪、霍尔效应量测仪以及自组装之热电量测系统作为分析仪器，分别量测薄膜表面形貌、横截面、成分、结晶性质、电性以及Seebeck系数等特性。

The female sex pheromone gland extract of Holcocerus Artemisiae was separated and indentified by gas spectrometry and electroantennograms.

采用毛细管气相色谱和触角电位测定技术分析沙蒿木蠹蛾雌蛾性信息素腺体提取物。

Furthermore,the stability behavior and accuracy characteristics of the algorithmare proven by a spectral decomposition method.

在前人工作的基础上，提出了一种新的用于解决结构动力分析问题的时间积分方法——Taylor级数方法；建立了求解线性问题和非线性项可以表示为多元多项式形式的非线性问题的Taylor级数方法的理论，并给出递归求解通式；阐述了该方法的程序实施过程，给出了计算流程图，并在非线性有限元分析平台NFAP中嵌入了Taylor级数方法的计算模块；利用谱分解的方法分析了该方法的稳定性和精度特性，以封闭的解析形式给出了描述积分法特性的周期延长率和振幅衰减率的表达式；通过对该方法的理论分析和特性研究，阐述了该方法的可行性和高效性。

Compared with the existing methods based on spectral line matching, the proposed method has a lower dependence on the quality of spectral line extraction.

实验结果表明：此方法的鲁棒性较好，性能优于基于谱线匹配的方法。

In terms of the ground disturbance power spectral density, the H2 norm is used to describe the requirement for ride comfort and the generalized H2 norm is adapted to capture time-domain constraints such as good road holding.

根据路面干扰谱特征，选用H2范数作为乘坐舒适性的指标，广义H2范数描述轮胎接地性等时域约束要求。

For solving the linear system with the iterative method, it is very important to estimate the spectral radius of the iterative matrices.

在用迭代法解线性方程组时，迭代矩阵的谱半径估计在迭代法的收敛性分析中起着重要的作用。

For example,,,where .2.Convergence of the iterative method: firstly I give a new upper bound for the spectral radius of iterative matrix , where is a double strictly diagonal dominant matrix.

迭代法的收敛性分析：首先给出了一般迭代阵谱半径新的上界估计，其中矩阵为双严格对角占优矩阵，是一种比严格对角占优更广泛的矩阵类。

Sinensis were conducted.The result of SDS-PAGE showed that different parts in spermatophore, including spermatophore matrix, seminal plasma and the whole sperm, had different characteristic bands in PAGE maps, and the result could be repeated, so the method for spermatophore fractionation was reliable.

实验结果显示，通过分级分离所得的精液、精荚基质和纯品精子等各个部分，在SDS-PAGE电泳图谱上均显示出不同的特征性谱带，且试验的重复性较好，证明本实验建立的精荚分级分离的方法是可行的。

We also give a theoretical result for the stream function form of the Navier-Stokes equation in unbounded domains.

我们还建立了流函数形式的Navier一Stokes方程在无穷带状区域中的一类始边值问题的谱格式，证明了该格式的稳定性和收敛性。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。