激发

An alternatie to excite the photosensitizer by the common one-photon absorption is the method of two-photon excitation.

对光敏剂的激发也已经从普通的单光子激发发展到双光子激发。

The main causes of the vibration in pipeline system are in two respects : The first is the vibrant force of the medium acted on pipeline system,i.e.exciting signal,such as the vibrant force caused by the gas flow at the compressor ′ s inlet and outlet and at the ramified and nodel points as well as the action of pig passing through pipeline bridge,etc.;The second is the response to the exciting signal,which is relating to the characteristics of the pipeline system,i.e.the rigidity,support,quality and equipments of the system besides the waveform of the exciting signal.

管道系统振动的原因主要有两方面，一是介质对管道系统产生的振动力，即激发信号，如气流在压缩机进、出口，分支节点部位产生的振动力，清管器通过管桥时对它的作用等；另一方面是对激发信号的响应，其响应除了和激发信号的波形有关外，还和管道系统本身的特征，即系统的刚度及支撑，质量及其配置等情况有关。

The states with their structures similar to the ground state0+1 form a ground rotation band and they all can get access to the regular triangle shape.

在有的态中仅有一种模式被激发，另一些则两种模式均被激发，而在基态中不包含任何一种激发的模式。

Secondly, we provide a two-level model to depict the one-, two-and three-photon fluorescent process and with it to calculate the one-, two-and three-photon fluorescence intensity dependence of the incident excitation intensity and time. We study the fluorescence intensity when excitation light's time distribution are square pulse、Gaussian pulse and sech pulse. We find that the influence of excitation light's time distribution on the two- and three- photon fluorescence peak intensity is larger than the one-photon fluorescence peak intensity. Two-level model can account for the behavior of saturation fluorescence.

然后用二能级模型解释了单、双、三光子激发原理，在理论上推导出了单、双、三光子吸收诱导荧光强度与脉冲强度以及脉冲作用时间的关系，并进一步研究了入射光时间分布分别为矩形、高斯型、双曲正割型时激发溶解在氯仿溶液中的C22H22N4O样品所产生的荧光峰值光强，结果表明激发光的时间分布对双、三光子荧光峰值强度的影响比对单光子的影响要大。

We investigated the effect of visiblelight on the UV-polymerization of diacetylene and an accelerationphenomenon of the visible-light on the monolayer polymerizationwas observed. It means that the visible-light can accelerate the chainpropagation but have no effect on the chain initiation, thus benefitthe producing diacetylene polymer with higher molecular weight.

考虑到双炔酸聚合过程中，链引发和链增长所需的激发波长不一样，前者的激发波长必须小于310 nm，而后者的激发波长在可见光区，我们因而在液面上测量了可见光对聚合反应的影响，发现可见光照的确能加快反应的进行，就是说，在链引发和链增长的竞争中，我们可以用可见光加快链增长过程，一定程度上增大分子量。

We have previously showed that CD40 activation induced the cell fusion and formation of multinucleated giant RS like cells from B lymphoma Daudi cells, which makes it clear that the Daudi cells obtained the ability of invasion after CD40 triggering.

CD40分子激发后的恶性B淋巴母细胞Daudi发生自身融合现象，表明肿瘤细胞在CD40分子激发后获得了某种侵润能力。而恶性B淋巴细胞的特性之一就是肿瘤细胞的广泛转移和侵润。因之，我们推测淋巴细胞的CD40分子激发可能对其扩散和转移会产生影响。

The bronchial asthmatic model was established by egg protein sensibilization and longterm inhalation provocation.The rats of each treatment groups were lavaged each day from the first time of provocation to execution.After 4 weeks of treatment,the rats were killed to obtain lung tissue for dyeing of HE.A computer assisted image analysis system was used to determine the thickness change of bronchus wall and smooth muscle.The contents of MMP9 and TIMP1 in lung tissue were determined by ELISA double antibody sandwich method.

除正常组外以卵蛋白致敏并吸入激发法制备大鼠支气管哮喘模型，各治疗组均从第1次哮喘激发开始(造模第3周)至处死前每天灌胃给药，激发并给药4 w后处死大鼠，取肺组织HE染色，彩色图像分析仪测量支气管管壁厚度、平滑肌厚度，采用ELISA双抗体夹心法测定肺组织MMP9、TIMP1含量。

Intense laser pulse causes neutral dissociation of superexcited NO molecule by way of multiphoton excitation, which is equivalent to single photon excitation in the extreme-ultraviolet region by synchrotron radiation.

由此证实和同步辐射导致的单光子激发一样，强激光导致的多光子激发同样可以引起NO分子的超激发，并且随后发生中性解离。

Three expression vectors containing mutant gfp which were truncated from 3′ termine were constructed in the present paper.The mutation gfp with different length under the control by T 7 promoter were expressed in E. coli BL21 cells.

本文将突变型 gfp3′末端不同程度地截短，构建成表达载体，在大肠杆菌 BL 2 1中表达了不同长度的绿色荧光蛋白，当其生色基因中 65位 Ser点突变成 Thr，则 GFP的激发波由 396nm增至 4 70 nm，不用 UV激发，仅在自然光源下就可看到强烈的绿色荧光，发光强度增加 6倍，若从 3′端截短 12个氨基酸密码，对发光无影响，但截短 75个氨基酸密码，则激发波长降到 360 nm，发光强度减少 12倍。

His shocking illiterate ideas, attempting to correct "learning from others" to "learning from oneself","being educated" to "educating oneself","to destroy is to construct" to "to construct is to elutriate","aesthetic judgment, ugliness judgment, and others judgment" to "self judgment, thought judgment, importance judgment and thingliness judgment","make nothing out of something" to "to make something out of nothing"(we have to create something, because there is nothing), and to instinctively inspire one's intelligence and to make "empty reproduction" and "analysissitus" of such an inspiration, encouraged more and more pioneers to inaugurate new things.

把&学习他人&纠正为&学习自己&，把&他人教育&纠正为&自我教育&，把&破坏就是建设&纠正为&建设就是淘汰&，把&审美和审丑及审他&纠正为&审我审想审要审物&，把&有中生无&纠正为&无中生有&（正因为没有，所以才要创造），以及对智慧的本能激发和对本能的智慧激发的&空殖&、&悬浮&、&拓扑&等惊世骇俗的文盲观点，激发了越来越多的先锋创新人士。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。