查询词典 fluorescence

The results show that the chlorite jade is in dark green, semi-translucent to opaque, and lepidoblastic texture, with hardness of 2.5, refractive index 1.58 and density 2.60 g/cm^3. It has homogeneous texture and less fissures, and no fluorescence under ultraviolet fluorescence lamp. XRD analysis shows that the mineral composition of the chlorite jade is mainly chlorite.

结果表明，该绿泥石玉呈深绿色、微透明－不透明集合体，具鳞片变晶结构，裂隙少，质地均匀，在紫外荧光灯下不发荧光，摩氏硬度为2.5，折射率为1.58，密度为2.60g/立方公分。X射线衍射分析结果表明，该绿泥石玉的物相为绿泥石。

Vascular endotheliocyte fluorescence staining and leukocyte fluorescence tracing method were applied, in combination with microscopic video system and computer imaging analyzing system, to observe in dynamic and quantitatively the influences of acupuncture on pia matral encephali microvascular morphology, density and blood flowing velocity at 3 hours, 6 hours and 24 hours after cerebral occlusion of meddle cerebral artery.morphology, density and blood flowing state at various time divisions observed directly microscopically and vascular endotheliocyte morphology and the state of brain tissue which near the microvascular after infusion with velocity in infarcted area at various time divisions measured in quantity in each group.microvascular endotheliocytes were colored worse and more fluorescent exudation appeared.

采用血管内皮细胞荧光染色及白细胞荧光示踪法，结合显微录像系统和计算机图像分析系统，动态定量地观察了针刺对大脑中动脉阻塞后3，6，24h软脑膜微血管形态、密度、血流速度的影响。主要观察指标：①从显微镜下直接观察各组大鼠不同时段软脑膜微血管的形态、密度、血流状况，以及注入荧光剂后血管内皮细胞形态和周围脑组织状况。②定量测量各组大鼠不同时段梗死区微血管密度、血流速度。结果：120只大鼠均进入结果分析。

Some metallorganic complexes can emit fluorescence or phosphorescence when excited by light with suitable wavelength. Usually, the fluorescence and phosphorescence can be quenched by oxygen.

合成了13种金属有机络合物，从中筛选了两种性能优良的氧感应指示剂［Ru3］(ClO4)2和Pt。

By dehydrochlorination reaction the poly[(2-methoxyl-5-octyloxy)phenylene vinylene] is synthesized and the material"s structure is characterized by nuclear magnetic resonance spectroscopy, infrared absorption spectrum, ultraviolet and visible spectrophotometry. At the meantime, the fluorescence spectrum is measured and the mechanism of fluorescence occurring is analyzed. Thermal Gravimetric Analyzer"s results show that the MO-PPV"s thermal stability is fine. Also the experiment of resolvable property indicates that the MO-PPV can well dissolve in chloroform. Through analyzing the film"s surface by Metaloscope and Atomic Force Microscope, the good filming is found.

通过脱氯缩合法合成了聚(2-甲氧基-5-辛氧基)对苯乙炔，并分别用核磁共振波谱法、红外吸收光谱法、紫外-可见分光光度法等对其进行了结构表征；测量了样品的荧光光谱，分析了荧光产生的机理；热失重仪分析了材料的热稳定性，研究表明MO-PPV材料具有良好的热稳定性；溶解性实验发现材料在氯仿中溶解性较好；金相显微镜和原子力显微镜研究了薄膜的表面形貌，发现该材料的成膜性良好；材料的导电性研究表明，固体材料在掺杂下才可以表现出导电特性，而配成溶液的材料导电性因溶剂的不同而不同，并随溶解时间的长短发生变化。

Natively, first set up one laser-induced fluorescence remote sensing system, which has more complete function and is composed of modern detecting ability equipment including time-selected, spectrum fast received and interrelated detecting technology. Applying this system for detecting common monocyclic and polycyclic aromatic hydrocarbons'fluorescence spectrum. Have a preliminary research of classifying and distinguishing of the kinds of oil pollutants.

一、在国内首先建立了功能比较齐备，技术上采用了具有二十世纪九十年代特点的时间选通，光谱并行接收，相关探测等先进探测处理能力的荧光遥感模拟实验系统，利用该实验装置对常见的水面单环、多环、芳香族油污染物的荧光光谱进行了较系统的测试，并进行了分类识别的初步研究。

Two-photon absorption; Nonlinear optics properties; Ultrafast dynamics; Time-resolved fluorescence; Time-resolved fluorescence anisotropy; Solvent effect; multibranched structure

论文导师钱士雄，论文学位博士，论文专业光学论文单位复旦大学，点击次数 19，论文页数 96页File Size4789K

The high expression of green fluorescence protein was observed by fluorescence microscope in culture neuroglial cells.

(1)成功构建pEGFP- NGB重组子；(2)构建的pEGFP-NGB重组子可在培养神经胶质细胞中表达。

Synchronous fluorescence showed that the addition of POM could enhance the fluorescence intensity of CV, which was explained in terms of the hindrance of the formation of the nonfluorescent twisted intramolecular charge transfer states of CV by the assembled POM-CV system, and the surfactant CTAB could enhance the luminescence by coordinated assembly.

具有同样Keggin结构的4种稀土杂多阴离子与结晶紫的作用总体一致，稀土元素不同体系的光活性会表现出一定的差异。实验证实，阳离子表面活性剂CTAB的存在会进一步增强体系的发光活性。三者协同作用，形成了更稳定的杂多阴离子－CV-CTAB三元超分子体系，而β-CD的存在对稀土杂多酸盐与结晶紫的超分子体系稳定不利。

The author thinks that the experimental curves measured by resonant-fluorescence excitation are the velocity distribution functions, but those measured by nonresonant fluorescence excitation are not the velocity distribution functions directly.

作者认为，共振荧光激发模式测出的就是速度分布函数，而非共振荧光激发模式测量的结果不能直接反映速度分布函数。

In the experiments of the resonant fluorescence, the atomic beam, the driven field and the fluorescence collected are usually set up orthogonally.

在已有的共振荧光实验中，基本上都采用原子束、相干驱动场和被探测荧光相互垂直的实验布置。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。