消光系数

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。

In fact, measured molar absorptivity is also related to apparatus used.

实际上，测得的摩尔消光系数也和使用的仪器有关。

In the case of specified wave length, solution and temperature, molar absorptivity is determined by the characteristics of the given substance.

在波长、溶液和温度确定的情况下，摩尔消光系数是由给定物质的特性决定的。

On the basis of the peak absorption values of the visible spectra of MB, the dimerization constants and the molar absorption coefficients of the monomer and the dimer of MB were calculated.

根据MB特征峰处的吸收光谱值，计算了MB的二聚平衡常数和相应单体、二聚体的摩尔消光系数。并用稳态荧光法和无外加探针的循环伏安法进一步论证了计算结果。

In this paper these parameters were studied based on the datum observed in Yongledian irrigation experiment station in Beijing.

这些参数影响SPAC系统中能量的分配和水分传输规律。同时，在采用该模型模拟农田作物的水热运移时，过去的许多算法中考虑叶面积指数主要是用它来计算消光系数k和腾发量等。

The molar extinction coefficient was lowered because of the presence of heteroatom in above-mentioned molecules, so the UV-vis absorption was weakened, but the brightness of 36a-e fluorescence was increased.

由于N、O和S杂原子的引入降低了卟啉衍生物的摩尔消光系数，因而紫外吸收较弱，但化合物36a-e荧光发射能力增强。

Based on the method of BCA, we menstruate the molar extinction coefficient of R-PE. The molar extinction coefficient in the wavelength of 565nm and 280nm is 4.75X K^mor'cm"1 and 4.07 X104morIcm"1 respectively.

在BCA法进行蛋白质定量的基础上，测定了R-PE的565nm和280nm的摩尔消光系数，它们分别为4.75×10~5mol~(-1)cm~(-1)和4.07×10~4mol~(-1)cm~(-1)。

Laser optics ; smoke screen interference ; numerical simulation ; extinction coefficient

激光光学；烟幕干扰；数值模拟；消光系数

The molar extinction coefficient, maximum absorption wavelength, reaction rate constants of trans-cis photochemical isomerization, thermal back-isomerization and photochemical back-isomerization and equilibrium constant of photochemical back-isomerization reaction of a novel photochromic liquid crystalline dendrimer G1 of the first generation containing nitroazophenyl groups on its periphery and small molecular azophenyl moiety M1 in solution were described.

张其震*1，盛昕1，李爱香1，王艳2摘要：研究了树外围含12个硝基偶氮苯基元新型一代碳硅烷光致变色液晶树枝状大分子G1和基元小分子M1在溶液中的最大吸收波长、摩尔消光系数、反-顺光化学异构化反应速率常数、热回复异构化反应速率常数、光化学回复异构化反应平衡常数及速率常数。

The geometry of canopy and interception of photosynthetically active radiation were measured.

通过实测和理论计算，结果表明：高原地区冬小麦叶片比平原地区的更趋于直立，具有比平原地区低的消光系数，能够容纳较大的绿叶面积和有效穗数；当冠层对PAR的截获率趋于饱和时，高原地区麦田可容纳的最大绿叶面积可达8.6，是平原地区的1.4倍左右；开花到成熟期间的叶日积大约可达平原地区的2倍，绿叶面积持续时间长；整个生长季期间，高原地区的PAR总量是平原地区的1.7倍，单位绿叶面积所截获的PAR是平原地区的1.3倍，又由于其叶片的趋于直立，故从上到下叶片受光比平原地区更均匀和充分，群体光合潜力高，对PAR的利用率更高。

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。