查询词典 cascade amplification

The gene probe marked with long-arm light-sensitive biotin was used to detect 65 pleural effusion samples by combining gene amplification with probe examination.

同时对65份胸腔积液标本进行基因扩增联合探针检测并与传统的病原学检测方法进行比较。

Over the coming years, Segovia would perfect his technique and push luthiers to experiment with new woods and designs that could increase the natural amplification of the guitar.

随后的几年中，塞戈维亚的技艺日臻纯熟，鼓励弦乐器工匠去对吉他进行木材和设计方面的设计改进试验，这样放大了吉他自然音量。

This work resulted in their joint paper on optical and infrared masers, or lasers (light amplification by stimulated emission of radiation).

汤斯意识到，若用固体分子来替代氨分子，根据肖克利所建立的固体和新概念，用途更广泛的装置也能制成。

In this lecture, the study content of nonlinear atom optics and their experimental results and recent progress are introduced in some detail, which includes atomic solitons, four-wave mixing, slow light group-velocity and superluminal light, superfluid and vortex, Josephson effect and phase-coherent amplification of atomic matter waves, and so on

文章重点介绍了非线性原子光学的研究内容、实验结果及其最新进展，主要包括原子孤子、原子物质波中的四波混频、光速减慢与负群速现象、超流及涡流、Josephson效应和物质波的相位相干放大等。

In order to investigate the effect of 2,4-Dihydroxylbenzoate on the combustion of double-base propellant, the combustion law of the propellants containing β-Bi was studied by means of the single frame amplification photography fl miniature thermocouple, the scanning electron microscopy and the LINK ISIS energy spectrum.

为了探索2，4-二羟基苯甲酸铋对双基推进剂燃烧的催化作用，采用单幅放大彩色摄影法、Ⅱ型微热电偶技术、扫描电镜和电子能谱研究了含2，4-二羟基苯甲酸铋双基推进剂的燃烧规律。

Results Metaphase multipolar mitoses and centrosome amplification were found in all HNSCC cell lines at the average frequencies of 9.9±4.8% and 6.7±3.1%separately.

结果 HNSCC细胞系多极核分裂像细胞平均占分裂中期细胞的9.9±4.8%，含中心体扩增的细胞平均占总体细胞的6.7±3.1%。且二者呈显著正相关，r=0.857，P＜0.01。

However,the normal controls seldom showed metaphase multipolar mitoses and centrosome amplification,with the average frequencies of（0.8±0.9）%and（1.2±1.4）%separately.

而正常对照组细胞仅偶尔出现异常分裂中期形态及异常的中心体数目，其平均值分别为（0.8±0.9）%和（1.2±1.4）%。

However,the normal controls seldom showed metaphase multipolar mitoses and centrosome amplification,with the average frequencies of（0.8±0.9）%and（1.2±1.4）%separately.

而正常对照组细胞仅偶尔出现异常分裂中期形态及异常的中心体数目，其平均值分别（0.8±0.9）%和（1.2±1.4）%。

Objective To establish an optimal method for in vitro culture and amplification of myoblasts from human skeletal muscle.

目的 建立一种优化的体外成人成肌细胞分离与原代培养方法。

Furthermore, because of the device excellent transistors performance and N-shaped NDR phenomenon, the studied device provides a good potential for linear, analog amplification, and logic circuit applications.

所研究的元件具有良好的崩溃电压、转导值及高线性度，以提供讯号放大和逻辑电路上之应用。

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。