查询词典 cascade amplification

By analyzing the optical characteristic of the off-axis and multi-pass amplified high power solid-state laser facility,using the theory of binary tree tracing and matrix optics,and dividing the system into four parts that include cavity amplification part,boost amplification part,beam reverser and beam output part,the ghost image are analyzed and traced.Main of ghost image that are devastating are given in all parts.

为了有效地避免鬼像破坏，针对采用离轴多程放大的高功率固体激光实验装置的光路特点，利用"光路二叉树"原理和"矩阵光学"方法，将全光路"单元化"为主放大、助推放大、反转器和输出4个部分进行光线追迹和鬼像分析，给出了各个部分的主要鬼像分布。

Seeded amplification of colored conical emission and two-dimensional multicolored transverse arrays as well as simultaneously up-converted parametric amplification have been demonstrated using spectral synthesis to obtain sub-fs pulses.

基于分子调制过程，文章作者提出并发展了一系列亚飞秒脉冲产生和操控的技术；围绕频谱合成方案，利用级联二阶非线性效应，实现了多色圆锥辐射注入放大和二维多色阵列及其参量上转换放大；同时，还开展了基于飞秒振荡器及外腔增强技术的高重复频率高次谐波产生与输出耦合的相关研究。

The reaction system of AFLP (Amplified Fragment Length Polymorphism) in genus Eriobotrya was studied and the AFLP analysis system was established by detected the results of several reactions such as DNA extraction, enzymes restriction, adapter-ligation, pre-amplification and selective amplification; the main factors which affected AFLP analysis were analyzed.

通过检测AFLP分析中DNA提取、酶切及连接、预扩增和选择性扩增的结果，对影响AFLP分析的主要因子进行分析，建立了AFLP分析体系。

Using the amplification transfer function of type Ⅰ BBO crystal, the theoretical study of spatial properties of the optical parametric fluorescence generated by homochromatic signal and polychromatic signal in optical parametric amplification is investigated, The numerical simulation results demonstrate that when the homochromatic signal is injected into optical parametric amplifier, the fluorescence signal is first emitted in a cone and then in a ring while centering on the pump wave direction.

采用第Ⅰ类相位匹配BBO晶体的放大传递函数方法，分别对光参量放大过程中单波长信号光注入和多波长信号光注入出现的参量荧光的空间特性进行了详细的理论研究。

GRP can also make mice's MNC and hematopoietic stem cells from human's umbilical cord blood amplification. We use colony formation to analysis the linear relation during the cells'growth and the medicine's dosage, examine the amplification of CFU-GM induced by hypothallus and its supernatant, RT-PCR is used again to check three cytokines'genes.

发现GRP对小鼠MNC扩增有作用，从而将GRP运用到人脐带血MNC的扩增分化上，用集落形成法分析药物与扩增的线性关系，基质层、基质上清对CFU-GM的影响，用RT-PCR技术检测基质层细胞生长因子基因的扩增。

During our strategy, two linear amplification approaches are employed, ligase detection reaction and an isothermal amplification (cooperation by DNA polymerase and nicking enzyme).

连接产物由于在DNA聚合酶和限制性内切酶的共同作用下，发生等温扩增反应，扩增出大量的血红素的适配子，适配子与血红素结合，形成的复合物催化鲁米诺和双氧水的化学反应。

Result In the Identification of ISSR molecular markers, 3 primers in 20 of being chose had better amplification effect. Optimization results representative of C. grandis Osbeck showed that primers 826 for the optimum temperature of Rutaceae plants amplification was 52.0℃, and the best cycle time was 35 cycles.

结果］选用的20个引物中有3种引物扩增效果较好，以柚为代表的优化结果表明，引物826对芸香科植物扩增的最适退火温度为52.0℃，最佳循环次数为35个循环。

The Stroh violin used mechanical amplification similar to that of an unelectrified gramophone to boost sound volume, in the late 19th and early 20th centuries before electronic sound amplification became common.

亮声小提琴，它出现在十九世纪末二十世纪初，在电子扩音器普遍采用之前。它配有类似无电留声机的机械扩音器，以此来提高音量。

The sequences of repeats and anchor nucleates are arbitrarily selected.Coupled with the separation of amplification products on a polyacrylamide or agarose gels,ISSR amplification can reveal a much larger number of fragments per primer than RAPD.It is concluded that ISSR technique provides a quick,reliable and highly informative system for DNA fingerprinting.

重复序列和锚定碱基是随机选择的，扩增产物经聚丙烯酰胺或琼脂糖凝胶电泳分离后，每个引物可以产生比RAPD方法更多的扩增片段，因此，ISSR标记是一种快速、可靠、可以提供有关基因组丰富信息的DNA指纹技术。

This review focuses on newly developed strategies for miRNA quantification, and elucidates in detail the probe-hybridization based methods including Northern blotting, microarray, gold nanoparticle labelling, and splinted ligation with radioactive labels. The amplification-based methods including quantitative PCR, rolling cycle amplification, invader assay, and the next generation sequencing methods were also discussed. The advantages and disadvantages of these methods were compared.

文章系统地介绍了最新发展的microRNA定量检测方法，详细阐述了基于探针杂交技术的Northern blotting法、微阵列芯片法、纳米金标记法、桥连同位素标记法，以及基于扩增技术的定量PCR检测法、滚环扩增法、引物入侵法和新一代大规模高通量测序法等，并对这些方法的优缺点进行了分析比较。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。