查询词典 band spectrum

It is found that,in a first-order differential Raman spectrum,almost all noise peaks are confined within a narrow horizontal band-like region with the base line going through its middle,whereas thesignal peaks shoot up and down much far beyond the region.Based onthis property,a new peak searching method with the aid of first-order differentiation is suggested.In this paper,a R_spectrumpeak labelling program for SPEX 1403 laser spectrometer with DMIBcomputer is reported.The result of peak labelling sho...

作者提出了用一阶导数谱辅助求 Raman 光谱峰值的新方法，较好地解决了谱峰与噪音的识别问题；编制了 SPEX_(1403)激光 Raman 光谱的标峰程序，具有10种不同大小尺寸的绘图功能、9种不同的字号供标峰选用，操作分为自动、半自动和手动三种方式，具有用于图注、实验条件说明的打字，存、取及复制标峰谱图等功能，克服了一般标峰过程中常见的弊病，标峰效果满意。

Methods: Determination of the absorption band and fluorescence spectrum of aloe-emodin respectively in dimethyl sulphoxide, normal sodium and Human serum, albumin by spectrophotometer and fluorospectrophotometer.

用紫外可见光光度计和荧光光度计测定芦荟大黄素在二甲基亚砜，生理盐水，人血蛋白中的吸收光谱和荧光谱。

Dimethoxy-thiophen-2-yl-benzo[1,2,5]thiadiazole(PC-co-DMOTB). Electrochemical and photophysical studies reveal band gaps of 1.90eV for PF-co-DMOTB and 1.82eV for PC-co-DMOTB, which could effectively harvest broader solar spectrum.

电化学及光学上测量判断其能隙与能阶，PF-co-DMOTB 其能隙为1.90eV ，PC-co-DMOTB则为1.82eV，其低能隙及施体受体交替之特性使其对光谱有较广之吸收。

The EL spectrum of the unscored sample can be decompounded into two Gaussian luminescence bands with peaks at about 1.83eV and 2.23eV,while in that of the scored one,the intensity of the 1.83eV peak is enhanced significantly,and a new Gaussian band with peak at about 3.0eV appears.

EL谱形状也有明显不同，表现在：未经刻划样品的EL谱可以分解为两个高斯峰，峰位分别位于1.83eV和2.23eV；而在刻划样品EL谱中1.83eV发光峰大幅度增强，还产生了一个新的能量为3.0eV的发光峰。

At the other end of the spectrum,"Any Other World" is a gently rousing ballad that wouldn't be out of place at the emotional zenith of an Andrew Lloyd-Webber musical - big cellos and lots of female 'aaaahs' supporting Mika's soft, warm tones.After this, the album heads back up a notch, back to what Mika does best - upbeat, poppy, all-singing, all-dancing, big-band tracks with "Big Girl" and "Stuck In The Middle", before finishing with the lovely, piano-led "Happy Ending".

想象一下当年Scissor Sisters走红的歌曲Comfortably Numb，Relax， Take It Easy是一首原创的Comfortably Numb，虽然不是专辑的第二单曲，单曲已经出现了英国下载排行榜上了，放下了华丽的外衣的是My Interpretation，Daniel Powter一般的抒情歌曲，没有美轮美奂的假声，没有复杂的电子，有的只是比较真诚的原来的Mika，Lollipop则更加像是一首音乐剧的歌曲，中速的节奏，catchy的旋律，咬字有特别的清晰，Mika的音乐从某种意义上说是一种做秀，他把一切能够的元素都运用起来，比如在Any Other World中，弦乐让你的心跳加速，而歌曲的环境又像是Mad World一般的黑暗，结尾的Happy Ending同样不容错过。

In order to eliminate the aliasing, at each step of decomposition or reconstruction, fast Fourier transform is performed the result obtained by convolving the input signal with filters, setting frequency spectrum of the redunctant frequency components to be zero, and inversely fast Fourier transforms the result after zeroing. The result after processing is the input signal of next step,and single sub-band reconstruction is implemented to extract the feature item of GPS data sequence.

为消除频率混淆现象，分解与重构时，每作一次信号与小波卷积后，将其结果作一次快速傅立叶变换，频谱中多余的频率成分的谱值置零，再对置零后的频谱进行傅立叶逆变换，然后继续进行小波包的分解与重构，从而实现单子带重构提取GPS数据序列特征项。

Fourier transform infrared spectrum showed sharp and specific ester band in either cellulose or in lignin esterified products.

红外光谱测定显示两者都能形成很强的酯键特征峰。

It is noted that the IAFH technology can not only countermeasure a partial-band jammer with a continuous spectrum, but also fight off a trancing jammer effectively.

结果表明，信息关联跳频技术不但能抑制部分频带连续谱干扰，而且对跟踪干扰有很强的抑制能力。

Taking Qixia City as the research region, using supervised classification of the flowering apple digital photos to extract the target information of the ratio of apple flower/leaf and apple flower/tree, this paper carries out the correlation analysis of the ratio data with synchronization hyperspectral detection data, to determine the spectral features and sensitive spectrum wave band of the apple florescence.

以栖霞市为研究区，利用苹果花期数码照片监督分类，提取苹果花树比和花叶比指标信息，通过与同步高光谱探测数据的相关分析，研究苹果树花期光谱特性，确定其敏感的光谱波段。

The study on spectrum analysis of arc sound signal has showed that a signature band of 5-10kHz of sound wave would be generated before fault s arc take place, which is strong in intensity and variable in both width and center depending on arcing electrodes, space between electrodes, and discharge volt age.

早期弧声的功率谱分析表明，故障电弧发生之前，在可听波段产生5kHz~10kHz的电弧声，其带宽和中心频率与电极形状、放电距离、放电电压等试验条件有关。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。