查询词典 emission spectrum

Based on the changes in the spectrum characters of guest molecules producedthrough inclusion complex formation with cyclodextrins, we have carried out two aspects of investigation:First, the mechanisms for the host-guest recognition reactions have been studied, such as the interactions between 3-CD and curcumin, the main constituent of the rhizomes of the plant Curcuma longa, the recognition of p-CD towards rubidate, the effective component of the Chinese traditional medicine madder, and the reactions of p-CD towards the antileprotic drug dapsone and the antiinflammatory drug nabumetone: The formation of supramolecular complex between P-CD and guest molecule has been discussed and verified in virtue of multitudinous means such asultraviolet-visible absorption, fluorescence emission, infrared spectrogram and so on. The influence of addition of linear alcohols on the supramolecular system has been studied and the reason why the noncovalent interactions in the three-component system could result in a decrease in the apparent association constant of the inclusion complex has been revealed.

本论文基于环糊精对被包结客体光谱性质的改变，开展了两大方面的研究：β-环糊精对姜黄属植物根茎主要成分—姜黄素、中药茜草有效成分—茜草双酯、抗麻风药物氨苯砜及抗炎药物萘丁美酮的主-客体识别反应机制研究：借助超分子包合物的紫外吸收光谱、荧光光谱或红外吸收光谱等手段，通过多种方法探讨并验证了超分子包合物的形成；研究了直链醇的加入对超分子体系的影响，揭示了三元体系中非共价相互作用导致超分子包合物表观结合常数降低的原因：对超分子包结反应进行了热动力学研究，探讨了各热动力学参数的变化趋势并从熵焓互补的角度考察了超分子包结过程；通过荧光猝灭实验进一步揭示了水相中β-环糊精增敏客体荧光的本质原因，从而为超分子化学提供新的理论和研究方法。

Shape of fluorescence spectrum of diphenylanthracene in multilayer film is almost the same as that in solution, and the position of emission peak does not show apparent shift, which is related to the fact that fluorophore are surrounded by highly branched dendrons. These results provide a new route for design and assembly of luminescent materials.

溶液中的荧光光谱和多层膜的荧光光谱的形状和峰位都非常接近，这和发色团处在树状分子的三维支化结构的中心是直接相关的，这一研究对发光材料的分子设计具有重要的指导意义。

Normally, Lyman-alpha emission is in the ultraviolet part of the spectrum, but Lyman-apha blobs are so distant, their light is redshifted to optical wavelengths .

正常来说，Lyman-α发射谱线为紫外光，但是Lyman-α云球却是红位移到遥远的可见光波段。

Advanced Spaceborne Thermal Emission and Reflection Radiometer level-lA visible image is executed atmospheric correction using two atmospheric radiative transfer model, 6S(Second Simulation of Satellite Signal in the Solar Spectrum) and SBDART (Santa Barbara DISORT Atmospheric Radiative Transfer). The plane-parallel atmospheric model is validated in the high-latitude Antarctica.

本文主要在分析了大气对遥感影像产生的各种影响的基础上，对大气纠正的一般原理和方法进行了回顾和归纳总结，利用两个大气辐射传输模式(6S和SBDART)，对ASTER L1A的可见光波段的影像进行大气纠正，验证了平面—平行大气模型应用于南极高纬度地区的可行性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷