化学发光的

It has been demonstrated that this kind of materials are applicable in a wide range fields, such as nonlinear optics, two-photon absorption and emission materials, electron-transporting and emissive materials in organic light-emitting devices as well as chemosensors.

这类材料已经显示出非常广阔的潜在应用前景，可以用作非线性光学材料、双光子吸收和发光材料、有机电致发光器件中的电子传输材料和发光材料以及化学传感器等。

Based on LSER method, the relationship between the acute toxicity of 26 substituted aromatic compounds on Photobacterium phosphoreum, Daphnia magna and fathead minnow and their theoritical solvatochromic parameters, the high correlation were found, it provided an example to introduce the quantum chemical parameters into QSAR study.

以线性溶剂化能相关理论为基础，利用理论溶剂化参数分析了26种取代芳香化合物对呆鲦鱼、发光菌和大型蚤的急性毒性，为成功地将量子化学参数引入QSAR研究探寻了一条新路。

More : current, electrical current, current flow, electricity, electrorheograph, galvanism, galvanic current, currents

定向流动的电荷。电流通过导体会产生热效应、磁效应、化学效应、发光效应等。②指电流强度。

Owing to the good stability in light, heat and chemical characteristics, the rare earth-doped molybdate is a good kind of luminescent material, but there are few reports on it.

稀土钼酸盐发光材料由于具有良好的光热稳定性和化学稳定性，是一种很好的发光基质材料，但关于稀土钼酸盐发光材料的研究却少有报道。

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。

At the same time seventeen normal ampullary oviducts during mid-secretory phase were included as control group. The routine two-step immunohistochemical technique was performed.

采用电化学发光法检测术前血β-HCG及免疫组织化学二步法测定各组标本中VEGF的表达，根据阳性率和表达强度进行组织化学评分和相关性分析。

Quantum chemical CNDO/2 method has been performed to study 20 chloranlines on the electronic structure in order to analyze their toxicities to Photobacterium Phosphoreum. The correlation analysis and the step regression analysis are put in use in this paper.

研究氯苯胺类化合物的电子结构与发光菌毒性的关系，应用CNDO/2量子化学方法计算了20个氯苯胺类化合物的电子结构，探讨了发光菌在5、15、30 min时间内的半抑制浓度的负对数P(5-EC50)、P(15-EC50)、P(30-EC50)与化合物的电子结构的关系。

①Rat MSC and VSMC were cultured and identified, respectively. MSC were labeled with DAPI firstly, and then co-cultivated with VSMC. The changes of morphology and ultrastructure of co-cultured cells were observed. Immunfluorescence analysis was performed by using monoclonal antibodies against specific antigen.②We established the regulatable system in two steps: a stable MSC line expressing rtTA has been constructed and characterized firstly by transfected with pUHD 17-1hyg and then selected by hygromycin B; in a second step, this line was used for trandfer the AT2R gene to MSC to get the well establishing double stable MSC lines;③The expression of AT2R regulated by doxycycline was evaluated by western blot;④The MSCs were transduced into rat carotid arteries with regulatable AT2R gene after the establishment of rat carotid balloon injury restenosis model. The intimal/medial area ratio were measured by digital analysis system.

研究方法：(1)密度梯度离心法及胶原酶消化法分别培养原代大鼠MSC及VSMC，细胞共培养并行免疫荧光化学染色和透射电镜观察超微结构；(2)组成受Dox调控的哺乳动物表达系统的四种成分的转化、扩增及提纯并酶切鉴定；(3)采用常规分子生物学方法连续两个回合转染体外培养的MSC，并分别采用发光计检测不同细胞克隆萤光素酶活性改变以及RT-PCR方法检测AT2R目的基因mRNA表达情况，根据各个细胞克隆受Dox调控表达的程度，选择低背景、高诱导表达AT2R的细胞系，作为双重稳定MSC细胞系；蛋白免疫印迹法观察该细胞系在Dox调控下AT2R表达的时相性、持续性及在不同浓度Dox调控下的表达情况；(4)建立大鼠颈动脉球囊损伤动物模型，将双重稳定MSC在术中导入血管，分别于14 d、28 d进行病理切片，检测可调控AT2R对新生内膜增生的影响；采用RT-PCR免疫组织化学免疫荧光等技术观察AT2R基因在新生内膜中的表达以及细胞外基质成分表达的改变，TUNEL法检测血管组织中细胞凋亡的变化情况。

The chemical composition, crystal morphology, fluid inclusions and thermoluminescent characteristics of non-metallic mineral s such as quartz and carbonate from the Jindoushan gold deposit were studied in detail.

对产于烟台金斗山金矿内的贯通性非金属矿物石英及碳酸盐类的化学成分、晶体习性、流体包裹体和天然热发光特征做了研究，结果表明，矿床的主成矿阶段的环境介质为酸性偏中性，富矿和贫矿石英的热发光曲线均为双峰型，但峰点温度、总积分强度有显著差异。

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。

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。