查询词典 spectral analysis

All these compounds were characterized by azeotrope and elemental analysis, as well as by spectral measurements.

对所制成的衍生物均采用了共沸混合物分析、元素分析和光谱测定等进行了表征。

However, this polynomial regression model suffered from thecolor metameric problem. Herewith, to minimize the metamerism, a model was developed based on the principal component analysis and back-propagation artificial neural network for scanner spectral characterization, which could reconstruct more accurate spectrum in comparison with the related international experimental results.

但是，扫描仪的多项式回归色度特征化模型存在同色异谱问题，因此本文提出了基于主元分析法和神经网络技术实现扫描仪颜色光谱特征化的算法模型，解决了同色异谱的问题，并且获得了比国际上同类研究更高的图像光谱重构精度。

The visible spectrum of Mo in Ti-based alloy was analyzed by a digital spectroscope. Mo 553.31nm and Ti 551.44nm were selected as spectral lines for analysis and comparison. Samples of Ti-based alloys with different Mo contents were analyzed quantitatively. The data indicated that the ratio of intensities between analytical spectrum and comparison spectrum has a positive relationship with the content of Mo.

使用数字化看谱镜对钛合金中钼元素可见光谱进行了分析测定，选用M0553.31nm和Ti551.44nm作为分析谱线和比较谱线，对不同Mo元素含量的钛合金样品进行了定量分析探索，数据显示分析谱线和比较谱线的强度比值与Mo元素含量成正比关系。

Signal processing approach presented in this paper based on neural network algorithm (spectral analysis, Random noise filtering) does not involve the complex multiplication and addition operations. Its computing accuracy is high. It is particularly suitable for the implementation of software and hardware based on DSP chip.

所提出的基于神经网络算法的信号处理方法(频谱分析、随机噪声滤波)不涉及复数的乘法运算和复数的加法运算，计算精度高，特别适合基于DSP芯片的软、硬件实现。

Methods: Totally 16 healthy adult rabbits of both sexes were randomly divided into SP group and NS group. The rabbits in SP and NS group were given Thiopental (3 mg/kg) and normal saline (1 ml/kg) respectively by intravenous injection via ear vein after establishing convulsant models by injecting Strychnine into the other ear vein. QPEEG and power spectral analysis were used to analyze the changes of δ-band of QPEEG in convulsant rabbits before and after administering drugs.

成年家兔16只，雌雄不限，随机分为硫喷妥钠组和生理盐水组，每组8只，在建立惊厥兔模型后，分别耳缘静脉注射硫喷妥钠3 mg/kg、生理盐水1 ml/kg，应用QPEEG，采用功率谱分析法，分析惊厥家兔给药前后QPEEG δ频段的变化。

In the first session the fans vibration on-line monitoring system is realized with VC language, also compile auto power spectrum density function, cross power spectrum density function, autocorrelation function and cross correlation function etc spectral analysis function to carry through simple offline fault diagnosis.

首先用稳定性强、扩展性好的VC++语言开发了通风机振动在线监测系统，并编写了自功率谱密度函数、互功率谱密度函数、自相关函数和互相关函数等频谱分析函数来进行简单的离线故障诊断。

The spectral response of the demultiplexer is calculated by using a rigorous coupled wave analysis method.

对修正了相位的光栅，采用严格耦合波分析，计算了光折变全息应用于波分复用的频谱响应。

This method is founded on the frequency domain model of DS-UWB array signals. The spatial spectral function is then derived for analysis.

该方法建立在直接序列超宽带系统阵列信号的频域模型。

The row details in line sequence, the line details in row sequence and the diagonal details in z sequence.resultsthe frequency spectral data and the image texture information were provided with image detection and wavelet analysis of the lymph node enlargements in face and neck, as well as the quantitative data descriptions of the texture of the foci or the normal tissue.

结果通过对面颈部肿大淋巴结的图像测定和小波技术分析，提供了频谱数据及图像的纹理分析信息，获取了病灶区域与正常组织纹理定量的数据描述。

First the traditional non-optical detection technology for gas concentrations is briefly introduced, such as ultra-sound technology, gas sensing, catalytic thermal, gas chromatography, interferometry applications, and then the spectral analysis based on the concentration of gas detection is discussed. The latest technological developments on the differential absorption spectroscopy, Fourier transform infrared spectroscopy, tunable laser diode laser absorption spectroscopy, laser radar and differential absorption Raman scattering laser radar, laser-induced fluorescence spectroscopy, laser Photoacoustic Spectroscopy are reviewed in detail.

首先对传统的非光学气体浓度检测技术作出了简单的介绍，包括超声波技术、气敏法、热催化法、气相色谱法、干涉法应用技术，被动检气管法，然后重点阐述了基于光谱学分析气体浓度检测技术的最新发展动态，其中分别对差分吸收光谱技术、傅里叶变换红外光谱技术、可调谐激光二极管激光吸收光谱技术、差分吸收激光雷达和拉曼散射激光雷达、激光诱导荧光光谱技术、激光光声光谱技术进行了详细介绍，最后提出了现代气体浓度检测技术的发展方向。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！