查询词典 emission spectrum

In the end, the spectrum expression of nonuniformly sampled LFM signal in the fractional Fourier domain is derived, and the detection probability of the signal in the case of different SNR is studied.

最后，应用该方法得到了非均匀采样LFM信号在分数阶Fourier变换域的频谱表达式，并对不同信噪比条件下信号的检测概率进行了研究。

A signal reconstruction algorithm based on the output signal spectrum is studied, the experiment data prove that the algorithm can reconstruct the nonuniformly sampling signal, the research of this algorithm provided theory basis for its application

研究了一种基于系统输出序列频谱的滤波重构算法，通过原型电路的实际数据，证明该算法可以有效地重构非均匀采样信号，为该算法的应用提供了理论基础。

Multi-channel linear-phase nonuniform filter banks with proper sampling factors are designed which are applied to rows and columns of the input image, respectively, according to its power spectrum distribution. By this procedure, the image can be segmented nonuniformly in the frequency domain.

根据输入图像的频谱能量分布和实际应用的需要，设计具有合适采样因子的线性相位非均匀滤波器组并将其应用于对图像行、列的处理中，实现对整个图像按照频谱能量的高低进行灵活分割的过程。

Oerdiagnosis of these notochordal cell proliferations as chordomas may occur if clinicians and pathologists are unfamiliar with the spectrum of notochordal proliferations.

把脊索细胞增殖过度诊断为脊索瘤往往发生在临床医生和病理学家对脊索脊索增殖病谱的不熟悉。

It achieves a certain extent effect of waterproof and oilproof. 3. Test the change of surface ingredient before and after the fluoridized of the FRP usingthe reflecting method of infrared spectrum. Then dip the fluoridized FRP in the cold water, warm water and petroleum ether for about half an hour, and surface ingredient havent changed too much.

用红外光谱反射法测试了经含氟物处理前后的玻璃钢表面结构变化，并且分别测试了在冷水、温水、石油醚中浸泡洗涤半个小时后的表面含氟处理的玻璃钢的表面结构，发现其表面结构与浸泡前无大的变化。

During this research work, we have respectively studied the OLAM network and the BP network on their basic theories, arithmetic, learning process, learning samples and outcome of spectrum analysis.

在本论文工作中，分别研讨了OLAM网络和BP网络的基本原理、算法、学习过程、学习样本的生成和解谱结果的优劣等内容。

Cognitive wireless networks : Next generation radios are capable of utilizing unused spectrum opportunistically, subject to regulatory restriction.

认知型无线网路：新一代无线装置具有根据资源使用的情形及法规允许之下动态的使用无线频谱限制的频谱。

The acquirement and expression of knowledge include two aspects: the first is that the spectrum knowledge of each land use type is automatically obtained from old land use map matched and overlain with remote sensing images; the other is that the changing knowledge of land use types are collected and analyzed, and changed into prior knowledge and probability.

二是通过对研究区各土地利用类型变化特点进行分析研究，并从中得到原有各土地利用类型经数年后变成其它类型的可能性及其大小。并将其定量化表达成新遥感图像上各类型的先验性概率。在知识的应用和分类方面，分别对原土地利用各类型所对应的遥感图像进行知识的应用和处理，利用各自可能出现的类型及其各类型的先验性概率进行最大似然法分类。

The results show that, Au-19.25Ag-12.80Ge brazing alloy is better, its melting temperature range is 446.76494.40 ℃, and the temperature interval between the solidus and the liquidus is 47.64 ℃. When the brazing temperature is in the range of 510550 ℃, the alloy has a good spreadability and wettability with Ni. Interface structure observation reveals that there is one continuous intermetallic layer between the brazing alloy and the base metal Ni when welding. X-ray energy spectrum analysis results show that the intermetallic layer is Ge3Ni5, and because of its brittleness, the overthick intermetallic layer will decrease the shear strength of the welding joint, therefore, the welding technology should be controlled so as to gain an ideal welding interface structure.

研究结果表明：Au-19.25Ag-12.80Ge合金的性能较好，其熔化温度范围为446.76~494.40 ℃，结晶温度区间为47.64 ℃；焊接温度在510~550 ℃范围内时，Au-19.25Ag-12.80Ge钎料合金与Ni基体具有良好的铺展性和润湿性，焊接时钎料合金与Ni基体之间形成了一条连续的金属间化合物层，能谱分析表明该金属间化合物层为Ge3Ni5，由于该化合物较脆，过厚的金属间化合物层使焊接接头的剪切强度下降，故应适当控制焊接工艺以获得理想的焊接界面组织。

Aim To validate spectrum analysis of oxalyl fluoride neutral molecule2 and study vibrational mode of the two configuration.

目的为了验证草酰氟中性分子2光谱分析的结果和进一步研究2种构像的振动模式。

A small, rubber-headed hammer used in examination or diagnosis by percussion.

叩诊槌用在通过''。'振荡'。''所作的检查或诊断中的橡皮头的''。'小'。''槌

Affixes are limited in number in a language, and are generally classified into three subtypes, namely, prefix, suffix, and infix, depending on their position with reference to the root or stem of the word.

语言中词缀的数量总是有限的，根据它们跟词根或词干的相对位置，一般可以把词缀分外三小类：前缀，后缀和中缀。