查询词典 absorption spectrum

The absorption spectrum of the product was determined by visible spectrophotometer,in which there are 6 maxium peaks located at 421.3,487.2,518.1,555.2,593.6 and 650.3nm,and proved that it is a more photoactive substance than tetraphenyl porphyrin.

经可见吸收光谱分析知，在氯仿介质中有6个大的吸收峰，波长分别为421.3、487.2、518.1、555.2、593.6和650.3nm，证明该卟啉是一种较四苯基卟啉更有效的光吸收剂。

The reversible photoisomerization of HOOCAzoC4SH SAM was studied by UV-Vis absorption spectrum and atomic force microscopy techniques.

首先合成羧基偶氮苯衍生物，并在金膜表面制备偶氮苯自组装膜，采用紫外吸收光谱、原子力显微镜观察偶氮苯衍生物的光学顺反异构现象以及偶氮苯自组装膜表面形貌的变化。

The results showed that the percentage of photosynthetically active radiation was about 80.1 in the absorption spectrum.

结果表明，冠层上方总辐射、反射辐射、基部透射辐射及吸收辐射中光合有效辐射所占百分比分别为47.5%、25.7%、29.6%和80.1%。

The instrument may be used in measuring sheat wave resonant absorption spectrum of liquid film in 1x10 to the power -5 -500 Hz frequency range and in providing measurement data for the research of the interaction range between clusters, long chains and multibands of liquid film, the group behavior of molecules and clusters, the long chain in polymer solution, the second, the third and the fourth group behavior in left liquid and other group behavior in chemical solution and complex.

本发明的谱仪可在10 －5 ―500Hz频率范围内，测量液体膜的切变波共振吸收谱，为研究溶液中的团簇间、长链间和多键间的交互作用范围，分子和团簇的集团行为，高分子溶液中的长链，生命液体中的二、三、四级或其他化学溶液和络合物中的基团的行为提供可靠的测量。

Mineralogic characteristics of quartz of this gold deposit, such as REE, fluid inclusion, chemical composition, unit cell parameter, infrared absorption spectrum and thermoluminescent effect, were studied systematically in this article,and some valuable information of genetic and prospecting criteria are concluded.

本文较系统地研究了该金矿床石英的稀土元素、包裹体测温、化学成分、晶胞参数、红外吸收光谱及热发光效应等矿物学特征，总结出了有重要参考价值的成因信息和找矿标志。认为康古尔金矿床主要系中深成中低温热液成因，成矿物质具深源性，直接来自围岩火山岩。

Thioindigo ; density functional theory; time-dependent density functional theory; electronic absorption spectrum

硫靛染料；密度泛函理论；含时密度泛函理论；电子吸收光谱

The geometrical structures of thioindigo chromophores were studied at the B3LYP/6-31+G* level of density functional theory. Subsequently, the electronic absorption spectrum was calculated using the time-dependent density functional theory approach at the same level.

在密度泛函理论的B3LYP/6-31+G*水平上对硫靛染料发色体的几何结构进行优化计算，在获得基态稳定结构的基础上，应用含时密度泛函理论方法在相同水平计算电子吸收光谱。

Study on the Effect of Slimes on Flotation of Zinc Oxide Mineral;2. The Determination for Eight Kinds of Elements in Wudalianchi Slime by Using Flame Atomic Absorption Spectrum;3. Test of reducing slime of oxidized zinc ore by using stirring mill has been carried out.

结果表明，搅拌磨能减少次生矿泥的产生，其原因主要是搅拌磨具有选择性破碎和自分级作用，粗粒级矿石受到的破碎作用力较强，而细粒级矿石受到较小的破碎作用力。

By locking laser frequency to atomic absorption spectrum through current negative feedback and locking microwave frequency to electromagnetic induced transparency resonance peak through voltage negative feedback, it is realized to lock the clock frequency of this laboratorial desktop experimental CPT frequency standard.

通过采用电流负反馈将激光频率锁定在原子对激光的吸收峰上，电压负反馈将微波频率锁定在电磁感应透明共振峰上，用该物理系统实现了闭环锁定的实验室桌面CPT频标实验系统。

By locking laser frequency to atomic absorption spectrum through current negative feedback and locking microwave frequency to electromagnetic induced transparency resonance peak through voltage negative feedback respectively, the locking of the clock frequency of this laboratorial desktop experimental CPT frequency standard is realized.

介绍了相干布居囚禁原子频标的小型、低功耗物理系统，并应用它开展实现了CPT原子频标的激光锁定、微波锁定方案的实验室研究。通过采用电流负反馈将激光频率锁定在原子对激光的吸收峰上，电压负反馈将微波频率锁定在电磁感应透明共振峰上，用该物理系统实现了闭环锁定的实验室桌面CPT频标实验系统。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。