峰值

Whether there was a correlation between the peak value at the elevated ST segment in infarction area and the valley value at the reciprocal depressed ST segment was mainly related to the time lasted for the restoration of depressed ST segment.

梗塞区ST段抬高的峰值与对应导联ST段谷值之间有无相关性主要与压低的ST段恢复时间有关，半月以内恢复者有显著相关性，半月以上恢复者则无相关性。

Experimental results showed that, compared with traditional wavelet-based image compression algorithms, this algorithm could alleviate the blur of image edge and improve the recognizability of the compressed images and peak signal to-noise ratio.

实验结果表明，和基于小波的传统编码方法相比，在低比特率下，该算法能减少图像的边缘模糊，提高压缩图像的识别度和峰值信噪比。

The research work presented in this dissertation focused on developing the scheme and techniques of OPCPA. This dissertation gives the results of the theoretical and experimental investigation on OPCPA scheme. The validation of OPCPA at high energy level was demonstrated successfully. And some important results were achieved. Several key techniques related to developing table-top ultra-intense and ultra-short OPCPA laser system were put forward, for example, the generation of femtosecond seeding pulses, the precisely temporal synchronization of the pump and signal pulses, the pulse stretching and recompression, the OPCPA process with high energy conversion efficiency and etc. Based on the integration of these key techniques, a 1.46-TW/153-fs OPCPA table-top ultra-intense and ultra-high laser system has been developed, which, to the best of our knowledge, has generated laser pulses with the shortest pulse duration and the highest peak power among the joule level OPCPA systems in the world.

本学位论文工作主要是瞄准 OPCPA 这一国际上提出不久并处于初级阶段的新概念，重点开展了 OPCPA 新原理的理论模拟、实验验证，以及基于 OPCPA 新原理的小型化超强超短激光系统的研究与发展，创造性地解决关键科学技术问题，建立并发展相关关键科学技术，如超短脉冲种子源的产生、小型化强激光泵浦源的研制及其脉冲的整形、信号光与泵浦光的精确同步、高效率光学参量放大及高保真脉冲展宽与压缩等关键技术，并在单元技术的总体集成方面取得了重大创新性进展与突破性研究成果，获得了国际上高量级泵浦条件下 OPCPA 激光研究中峰值输出功率最高且脉冲宽度最短的总体领先结果。

Estimation of experimental method Among the response range assigned, having stabile electric signal, having perfect line relation and recurrence, having many merit for example operation convenient rapid and high precision low cost and so on.

探头的初始化时间探头第一次初始化过程峰值一般较高，稳定时间也相当长，一般在220s至300s之间。

However, in the samples with the fast cooling rate, we observe the red shift of PL peak and radiative efficiency degradation.

然而快速降温的样品频谱峰值能量发生红移，并降低了发光效率。

The philosophy of General Reduced Gradient method is applied to conventional GeneticAlgorithm and a new Hybrid Genetic Algorithm is proposed.

将广义简约梯度法思想应用于传统遗传算法，提出一种新的混合式遗传算法，此方法具有很强的全局和局部搜索能力，并且无需复杂的编码、解码过程，可以准确解决多变量、多峰值的给水管网现状分析问题。

The philosophy of General Reduced Gradient method is applied to conventional GeneticAlgorithm and a new Hybrid Genetic Algorithm is proposed. Tl1is Il1ethod has a powerful searchingability globally and locally, with which the issues in analyzing the current statlls of water distribution networksfeaturing more variables and more peak values can be solved accurately without any complicated coding and de-coding processes.

将广义简约梯度法思想应用于传统遗传算法，提出一种新的混合式遗传算法，此方法具有很强的全局和局部搜索能力，并且无需复杂的编码、解码过程，可以准确解决多变量、多峰值的给水管网现状分析问题。

The same 30 ℃safety margin brings the maximum reflow temperature to 260℃.

同样的安全余量30℃最大峰值再流焊温度260℃。

Sampling and preservation Stabile experiment show that it can be preserved for 3 days under room temperature and in 4℃refrigeratory.

此后，由于探头表面活化，探头的峰值会大大降低，初始化过程也会大大缩短，一般在120s至180s之间。

It is difficult to insure globe convergence for regular BSS algorithms because they are easily trapped into local optimum, which can result in error of separation. This research associates genetic algorithm with traditional BSS and uses global optimize feature of genetic algorithm.

针对多数盲分离算法在多峰值情况下易陷入局部最优，难以保证全局收敛而导致分离误差的缺陷，文章将遗传算法与传统盲信号分离算法相结合，把全局收敛性能较好的遗传算法引入信号分离算法的寻优过程。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。