查询词典 absorption coefficient

When the backing is a double-shell, the water layer causes obvious modulation phenomenon to the absorption coefficient curve.

背衬为双层壳体时，水层对吸声覆盖层的吸声系数曲线有明显的调制现象。

Result］ The correlation coefficient of standard curve by atomic absorption spectrometry was 0.997 4-0.999 5, the relative standard deviation was 0.36%-2.80% and the recovery was

结果］ 原子吸收光谱法测定的标准曲线相关系数为0.997 4~0.999 5，相对标准偏差为0.36%~2.80%，加标回收率为

Based on the result of theoretical research the absorption coefficient curve of a substrate material has be ound,which ensure the three-channel BCCD work in the region of X-ray.

通过理论分析，找出了能保证BCCD在X光区工作的衬底材料所应满足的吸收曲线。

This method characterizes variable velocity, absorption coefficient and quality factor. It is feasible for improving SNR and resolution in seismic data.

该方法具有道间与道内地震波速度、介质吸收或品质因子可变的特点，并具有经济、快速、实用的优点，对地震剖面上信噪比与分辨能力的提高具有实际意义。

Temperature is dominant factor for carbon absorption and is quantitative with standard regression coefficient between NEP and temperature and precipitation.

6模型对比与非确定性分析：在介绍模型比较方法基础上，从模型结构和模拟结果两个方面对模型初步进行了对比与非确定性分析。

The refractive index and absorption coefficient of these materials are presented in the range from 0.2 to 1.6THz.

动物脂肪的折射率随频率变化基本不变，并且随温度升高而增大，其值在1.4—1.52之间。吸收系数在0.2—1.2THz随频率的增加而增大。

The refractive index and absorption coefficient of an explosive sample were measured by terahertz time-domain spectroscopy.

利用太赫兹时域光谱技术给出了这些炸药样品在0.2THz～2.5THz范围内的折射率和吸收系数。

The design of optoelectronic devices fabricated from III-nitride materials is aided by knowledge of the refractive index and absorption coefficient of these materials.

对三族氮化物材料而言，拥有其反射率及消光系数的知识是有助於制光电元件设计的制造。

Terahertz radiation, which is a kind of electromagnetic wave between the infrared and microwave bands, belongs to far-infrared band. THz time-domain spectroscopy which developed in the 1980\'s has the advantages of high signal to noise ratio, obtaining the absorption coefficient and refractive index of the sample at one time , low energy that can not distroy the biology organise and so on.

太赫兹辐射是指频率位于微波和红外光之间的电磁波，属于远红外波段；20世纪80年代发展起来的THz时域光谱技术，具有信噪比高，能同时获得样品的吸收系数和折射率，能量低，不会对生物组织造成破坏等优点，在材料和生物学等领域得到了迅速的发展和广泛的应用。

The third order nonlinear optical refractive index and nonlinear absorption coefficient are enhanced due to the quantum confinement effects and estimated to be 4×10 -12 m 2/W and 2×10 -5 m/W respectively in nonresonant condition,while 2×10 -11 m 2/W and -1×10 -4 m/W respectively in quasi resonant condition.

结果表明，薄膜的三阶光学非线性折射率系数和非线性吸收系数都由于量子限制效应而大大地增强，在非共振条件下，它们分别约为 4× 10 - 1 2 m2 / W和 2× 10 - 5m/ W，在准共振的条件下，它们分别约为 2× 10 - 1 1 m2 / W和- 1× 10 - 4m/ W。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了