查询词典 spectrum analysis

The frequency spectrum of noise is very wide, and will superpose with useful signal that has the notable influence to digital measurement and frequency spectrum analysis. Base on it, the method of solving zero floating problem of Waveform digital reconstruction process is proposed.

噪声的频谱噪声频谱很宽，将与有用信号的频谱重叠，对数字测量、信号处理和谱分析有显著的影响，并提出了解决波形数字重构中数字示波器零漂影响的方法。

The obtained unsymmetry substituted phthalocyanines were characterized by Mass spectrum, ultraviolet-visible spectrum, Infrared Spectroscopy and elemental analysis.

不对称酞菁经过元素分析、红外、紫外可见光谱和质谱的表征证明其结构，从而证实产物就是目标化合物。

Methods: Using X-ray spectrum and the atom spectrum analysis technique in medicine research's method.

运用X射线谱分析和原子光谱分析技术在中药研究中的方法。

Based on reference to the convention means of the analysis and research for energy spectrum hardening and photon scattering in internal and external, making full use of Beer law and Compton scattering intensity equation, this paper approximatively deduce a theoretical formula of correction of energy spectrum hardening and scattered radiation in Transmission X-ray Industrial Computerized Tomography from a ideal model.

本文在分析研究国内外有关射线能谱硬化修正和散射修正问题的分析方法及其研究状况的基础上，利用X射线透射物质的强度衰减遵守Beer定律和Compton散射强度方程，相继建立了能谱硬化修正模型及其修正方法和散射修正模型及其修正方法。

The EMG signal was recorded simultaneously from brachioradialis, biceps, deltoid and trapezius then analyzed with amplitude, spectrum or combined indices called the joint analysis of EMG spectrum and amplitude.

同时遥测记录肱桡肌、肱二头肌、三角肌、斜方肌的表面肌电信号，采用时域、频域及肌电术振幅频谱联合分析方法（the joint analysis of EMG spectrum and amplitude，JASA）的指标进行分析。

The content involves Digital Filter, Auto Correlation, Cross Correlation, mean and standard deviation, probability density and probability distribution statistic, as well as Auto Power Spectrum based on Fast Flourier Transfer, Correct Power Spectrum, Cestrum and Frequency Response. The Short-time Flourier Transfer and Wavelet Transfer are included in the analysis program.

具体内容包括：数字滤波、时域加窗、自相关计算与互相关处理、均值和方差计算、概率密度和概率分布统计，快速傅立叶变换基础上的自功率谱、互功率谱、频率响应函数、相关函数、倒频谱分析；基于短时傅立叶分析的联合时频分析、小波变换等。

The spectrum and electrochemical adsorption behavior and mechanism of diethyl dithiocarbamate on jamesonite were investigated by spectrum analysis and constantpotential step.

采用光谱分析及恒电位阶跃法，研究了乙硫氮在脆硫锑铅矿表面吸附的光谱电化学行为及作用机理。

Effects of temperatures on thaumasite formation were investigated.X-ray diffraction,scanning electron microscope,energy dispersive spectrum and laser Raman spectrum analysis were used to identify thaumasite in paste sample stored in 10% of MgSO 4 solution at different temperatures.

研究了环境温度对碳硫硅钙石形成的影响。降浸泡于不同温度的质量分数为10%的MgSO 4 溶液中的含石灰石粉水泥石试样进行X射线衍射分析、扫描电子显微分析、能谱分析和激光Raman光谱分析。

X-ray diffraction, scanning electron microscope, energy dispersive spectrum and laser Raman spectrum analysis were used to identify thaumasite in paste sample stored in 10% of MgSO_(4) solution at different temperatures .

钙矾石型和石膏型等硫酸盐侵蚀破坏机理已得到广泛研究与认同，然而另一种硫酸盐破坏类型———碳硫硅钙石型却没有受到应有重视。

Methods On the basis of bioisosterism principles and by the method of substructure link, we modified the parent structure of 1, 3, 4-thiodiazole and synthesized a new kind of thiadiazole Schiff base. The structure of the new thiadiazole Schiff base was confirmed by infrared spectrum, nuclear magnetic resonance hydrogen spectrum (1HNMR) and elemental analysis.

利用生物等排原理和亚结构连接法，对噻二唑母体进行修饰，设计并合成了1个新的噻二唑席夫碱，目标化合物的结构经红外光谱、核磁共振氢谱和元素分析加以确证。

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符，可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是，太多的作用物在彼此的工作里都有话语权，官僚的僵尸开始抬头。