发光的

METHODS The antioxidant of 75% ethanolic extract and organic solvent extracts, water extracts and polysaccharids from Acanthus ilicifolins L.

方法采用流动注射化学发光法，研究该植物75%乙醇提取物及其有机溶剂萃取分离部分、水提取物及多糖对过氧化氢(H2O2)的清除作用。

The invention relates to a method for adopting acridine ester DMAE.NHS as chemiluminescent substance for analyzing the total thyroxine.

本发明涉及一种采用吖啶酯DMAENHS作为化学发光物质分析总甲状腺素的方法。

Based on the prior art, the optical engine according to the invention has the improvements that, three optical axis steering components are respectively introduced into red, green and blue light illumination systems, and an optical axis lengthening structure is introduced into the green light illumination system, so that optical axes of the red, green and blue light illumination systems, each of which is from an LED resource to the optical axis steering component, are counterclockwise rotated for 90 degrees, parallel with each other, parallel with an optical axis of a projection lens, arranged in a same plane and positioned under the projection lens, luminous faces of three LED luminous chips of the red, green and blue light illumination systems are in a same plane, and the three LED luminous chips can be mounted on a same heat-radiating plate, therefore, the heat-radiating system has a simplified structure, and the optical engine has reduced size.

在背景技术所述的光学引擎的基础上作以下改进，在红、绿、蓝光照明系统中引入三个光轴转向器件和在绿光照明系统中引入光路加长结构，旨使：红、绿、蓝光照明系统各自的从LED光源至光轴转向器件部分的光轴朝逆时针方向转动90°、互相平行、与投影镜头的光轴平行、居同一平面和位于投影镜头的下方，红、绿、蓝光照明系统的三个LED发光芯片的发光面居同一平面，三个LED发光芯片可安装在同一块散热平板上，散热系统的结构简化，所述的光学引擎的尺寸减小。

The most parts of thesis as follows:1. Five symmetrical intra-molecular charge transfer oligomeric phenylene vinylene light emitting materials were designed and synthesized using oligomeric phenylene vinylene as a framework.2. The structures of target molecule were characterized by ~1HNMR,~(13)CNMR, IR, MS and element analysis.3. In order to study the influence of the location and numbers of electron-donor and electron-acceptor on their photoelectric performance by changing length of OPV chain, the UV spectra and fluorescence spectra of target compounds has been compared. We have researched into main factors effecting on material emitting red-shift; organic electroluminescence device was prepared using the compound P4. The capability of eletroluminescence was researched.4. The photoelectric properties of P4 was explained by quantum chemical calculation (the Gaussian 98 quantum chemistry program). It is greatly contributed know the whole process of charge transfer to guide the design of red emitters.

本文研究的内容主要包括以下部分：(1)设计并合成5个对称的以齐聚苯乙烯类为骨架的分子内电荷转移型齐聚苯乙烯类发光材料；(2)通过IR，MS，~1H-NMR，~(13)C-NMR和元素分析对所合成的目标化合物进行表征；(3)通过对目标化合物的紫外光谱和荧光光谱比较分析，研究改变OPV的长度，电子给体和电子受体的位置及数量对其光电性能的影响，探讨材料发射红移的主要因素；选取性能良好的目标化合物P4制备成OELD器件，对其电致发光性能进行研究；(4)运用Gaussian98量子化学程序包，采用量子化学方法对目标化合物P4的光电性能从理论加以解释，进一步认识荷移跃迁的整个过程，为红光材料的设计加以指导。

Therefore, zinc oxide and Eu~(2+)-activated strontium aluminate green phosphors were synthesized for the fluorescence conversion of near ultraviolet light-emitting diode, and their properties were examined by means of photoluminescent spectra, thermoluminescent spectrum, X-ray photoelectron spectroscopy and X-ray diffraction.

本研究针对近紫外LED荧光转换材料的要求，采用荧光光谱，热释光谱，X射线光电子能谱，X射线衍射等分析手段，重点研究ZnO绿色荧光粉和Eu~(2+)激活铝酸锶绿色长余辉荧光材料的合成，或提高发光效率和稳定性的新方法及其相关机制。并在以下几方面取得了一些进展： [1]将ZnS与一定量的卤化物MX(X=F，Cl，Br，I；M=Na，K，NH_4，Zn，ZrO)一起煅烧合成出发光性能优良的、具有六方纤维锌矿结构的ZnO绿色荧光粉。

We note from the further studies that in the crystals, which sharing the similar crystal structures and coordinational environments, the magnitude of the Stokes shift of the luminescence of the dopant ion is in line with the average covalency of the replaced lattice site. This is because that the nature of Stokes shift is the energy transfer from the luminescent ion to the host lattice. The value of this energy is determined by the frequency of the host lattice in which the frequency is controlled by the chemical bond characters.

更深入的研究发现，在晶体结构和中心离子配位环境非常相似的系列晶体中，掺杂离子发射光的Stokes位移值与其所取代格位的平均共价性成正比的关系，这是由于Stokes位移的本质是发光离子在发光过程中向基质以光波辐射的形式传递能量，这一能量的大小是由基质的振动频率决定的，而基质的化学键性质恰恰决定着基质的振动频率。

Considering the contributions due to viewed cone centred on the object point and extending through the luminnor body, the distribution of intensity in the image plane can be expressed by the integration of emitted powers of luminor body over the entire sightline under the paraxial approximation.

考虑到成像光锥的贡献，在近轴近似下，得到了用发光体的辐射强度表示像平面上照度分布的积分表达式，由此得到下列结果：1沿光路上每一垂直于光路的平面上能量贡献是一样的。2由于光路积分，探测器测到的光强涨落的幅度小于实际的涨落幅度，但在一定的条件下，发光体的涨落图像可重现。

CV indicated that the HOMO of DP1 is higher than that of DP2, which is resulted from the special effects of the pyrenes at C9 of the fluorene moieties, and the PL spectra of the two materials showed bright blue emission.

器件ITO／TCTA(8nm)／DP1 or DP2(30nm)／BCP(40nm)／Mg∶Ag都发出蓝光，但以DP1为发光材料的器件的性能远高于以DP2为发光材料的器件的性能，直流电压-电流曲线显示材料DP1有比DP2更高的载流子迁移率，芴9位的芘是造成这种结果的关键原因，并对这种原因进行了探讨。

Optical mouse lens system of the launch and the combination of components is one, fixed in the shell on the mouse, and the phototransistor is fixed in the circuit board, the location of the two must be very precise, manufacturers in the calibration of the location with hot melt adhesive to a fixed LED components in the lens, and if in use, the mouse has been touched or fall too much vibration, it is possible to make hot melt off, shift light-emitting diodes.

光电鼠标的发射及透镜系统组件是组合在一体的，固定在鼠标的外壳上，而光敏三极管是固定在电路板上的，二者的位置必须相当精确，厂家是在校准了位置后，用热熔胶把发光管固定在透镜组件上的，如果在使用过程中，鼠标被摔碰过或震动过大，就有可能使热熔胶脱落、发光二极管移位。

The results show that the as-synthesized chalcone-containing copolymers are a kind of thermosensitive polymer with a lower critic solution temperature and the LCST of the copolymer decreases with the increase of the chalcone content in the copolymer. With the increase of the solvent polarity, both the maximum absorption wavelength and the fluorescence emitting wavelength of the chalcone-containing copolymers redshifts, and the intensity of fluorescence first increases, then decreases, which exhibits solvent polarity sensitive fluorescence properties.

结果表明，侧链查尔酮共聚物是一类具有低临界溶解温度的温敏性聚合物，其LCST温度随着共聚物中查尔酮含量的增加而降低；随着溶剂极性的增加，侧链查尔酮共聚物的紫外-可见最大吸收波长红移，其荧光发光波长红移并且发光强度先增强后降低，具有溶剂极性敏感的荧光特性；同时对比侧链查尔酮共聚物水溶液低温和高温下的荧光，发现低温下几乎无荧光，高温下其荧光得到明显增强，其荧光具有可逆的温度&开/关&特性。

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