The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60，且材料的中低频吸声性能优良。
Carbon Black Pigmented Ethylene Plastic Film, Test Method for Absorption Coefficient of 08.
碳黑加色乙烯塑料薄膜的吸收系数的试验方法08。
By varying the loaded heat flux and wall emmisivity, the effect of gas temperature field and wall emmisivity on the equivalent gray absorption coefficient is studied.
通过调整供入的热负荷以及炉壁黑度，研究了炉壁黑度和炉气温度变化对反演的当量灰吸收系数的影响。
It is found that the absorption coefficient and the refractive index of the composite increased with increase of carbon black content.
测量发现，随碳黑含量的增加，复合体系的吸收系数逐渐增大，并伴随折射率的相应增加。
Refractive index, chromatic dispersion and absorption coefficient are material figures of merit for ultrafast all optical switch.
折射率、色散和吸收系数是用于超高速全光开关的光学材料的重要品质指数。
The absorption spectra, exponential gain coefficient, diffraction efficiency and effect carrier concentration of the crystal were measured.
测试晶体的吸收光谱、指数增益系数、衍射效率和有效载流子浓度。
Based on the concept of activation energy and microwave absorption power density, the formula of diffusion coefficient due to the effect of microwaves is derived.
利用活化能的概念和微波吸收功率密度表达式得到微波作用下的扩散系数表达式。
The requirements of LCLV on light absorption coefficient are discussed.
分析了液晶光阀对光吸收系数的要求。
It found that the graphite changed the density of the coating, and improved the sound-absorption coefficient of the coating.
试验结果表明，石墨改变了涂层的密度，提高了涂层的吸声系数。
An inverse calculation method is presented for determining the equivalent gray absorption coefficient of gases under various furnace gas temperature conditions.
提出了一种反演计算不同炉气温度下非灰气体的当量吸收系数的方法。
This paper discusses the phenomenon by electromagnetic theory and affirms the mathematical forms of Lambert's absorption coefficient.
作者用电磁理论对光的吸收现象进行讨论，确定朗伯吸收系数的数学形式。
The system also could decrease the effect of scattering light on absorption coefficient measurement by partly plating highly reflective membrane, so that we can improve the precision of the system.
对光管进行部分镀高反膜尽可能消除散射光对光吸收系数测量的影响，从而提高了系统的精度。
The theoretical method for calculating the absorption coefficient of the absorber is provided by analogying the acoustic field in a tube with varying cross section.
对尖劈型吸声材料用类比变截面管道的声场理论，给出了计算其吸声系数的一种方法；
By the experiments of solidification with the UV optical fiber directly, two eigenvalues for UV photopolymer solidification, critical solidification energy and absorption coefficient were calculated.
利用光纤直接曝光固化实验，得到了紫外光固化树脂的临界固化能量和吸收系数两个特征值；
The equilibrium absorption studies indicate that the permselectivity of the anion exchange membrane is related not only to the component solubility, but mean diffusion coefficient as well.
三种抗衡离子膜的平衡吸收实验表明，该阴离子膜的选择渗透性不仅与醇水在膜中的溶解度有关，而且取决于平均扩散系数。
The infrared absorption coefficient of LNO thin films is increased with increase of its thickness, and reduced with increase of the infrared wavelength.
LNO薄膜的红外吸收系数随其厚度的增加而增加，且随红外波长的增大而减小。
The mechanism of Z - scan technique is introduced. It 's application to measuring nonlinear refractive index and nonlinear absorption coefficient for nonlinear optical medium is made.
介绍了Z-扫描技术的基本原理，以及Z -扫描技术在测量非线性光学介质的非线性折射率、非线性吸收系数等方面的应用。
The effects of absorption coefficient, refractive index, heat conductivity, convective heat-transfer coefficient and radiative properties of the surf ace on the temperature field are discussed too.
物料加热表面受到对流冷却，并讨论了物料的吸收系数，折射率，导热系数，换热系数，物料表面辐射特性对温度场的影响。
In the measurement of sound absorption coefficient in random incidence and determination of sound power levels of noise sources, the reverberation room is used very extensively.
混响室是声学专业的实验室用房，它在测量声波无规入射时材料的吸声系数和测量噪声源的声功率级中得到了广泛应用。
This paper deals with the threshold condition of double resonance parametric oscillation when the absorption coefficient of the signal light is different from that of the idling light.
在信号光和闲置光吸收系数不同的情况下对双谐振参量振荡阈值条件进行了分析。
Once the relative content of the compound with the characteristics of the group, changes, the absorption coefficient will surely change. Hence the problem of choice of standard oil has to be faced.
一旦具有该特性基团的化合物的相对含量发生变化，吸收系数必然相应变化，所以都存在“标准油”的选择问题。
Methods Use a standing wave tube to measure the sound absorption coefficient of many kinds of grain.
采用驻波管法测量了多种粮食的吸声系数。
The varies of special absorption coefficient and IR characteristics were discussed to show the aid bleaching of xylanase.
本文从纸浆的特定光吸收系数和纸浆的红外谱征的变化两个方面探讨了木聚糖酶的助漂作用。
Objective To explore the possibitlity to obtain new photosensitizers with high absorption coefficient in red band of the spectra.
目的研究获得具有红光区高吸收系数的新型光敏剂的结构及其光生物活性。
The extinction coefficient of the water is the sum of absorption by the water itself, by particles suspended in the water, and especially by dissolved color substances.
湖水的消光系数是湖水本身和水中悬浮颗粒，特别是溶于水中的有色物质的吸收作用的总和。
And the influence of the scattering coefficient, absorption coefficient and size of scatters in tissue on propagation of light in tissue is studied in detail.
利用该程序详细讨论了散射系数、吸收系数以及散射体大小等对生物组织内光传输特性的影响。
The field of temperature distribution and the effect of temperature in concrete structure are directly influenced by solar absorption coefficient of concrete.
混凝土对太阳辐射的吸收率直接影响混凝土结构内温度场分布以及温度效应。
The field of temperature distribution and the effect of temperature in concrete structure are directly influenced by solar absorption coefficient of concrete.
混凝土对太阳辐射的吸收率直接影响混凝土结构内温度场分布以及温度效应。
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