近年

Because particle swarm optimization algorithm is more concise, and it has rapid convergence, which bring it to be a research hotspot in the field of evolutionary computation, so it is an emphasis in this dissertation.

因粒子群优化算法具有算法简单、收敛速度快的优点，成为近年随机优化领域热点之一，它是本文的重点研究对象。

Recently, it has been showed that EPO and its receptor are distributed in the Central Nervous System extensively.

近年的研究发现，EPO在中枢神经系统内也有大量的分布，并且有其受体的广泛表达。

It can not only avoid reduplicate labor and improve efficiency and quality of software production, but also change a plenty of legacy systems into the systems that can be evolved easily in order to utilize these useful resource adequately.

虽然近年对软件逆向工程的研究已有不少，但是它仍然属于一个未充分发展的领域，并未形成统一的标准、方法和过程，因此很有必要进行深入研究。

SVM is a newly developed method based on statistical learning theory, and is widely used in non-linear function regression.

支持向量机是近年发展起来的一种基于统计学习理论的学习机器，在非线性函数回归估计方面有很多的应用。

In previous studies, Cyclooxygenase-2(COX-2) is believed to be linked with inflammations and tumors. But in recent reports, COX-2 is found to play important roles in osteoblastic mechanotransduction and in bone remodification and resorptions in some ways. It was found that mechanical stretches, such as hydrostatic forces and pulsating fluid flow, could increase the expressions of COX-2 mRNA and then prostaglandins, and activate many signal pathways in osteoblasts.

环氧合酶-2(cyclooxygenase-2，COX-2)以往被认为与炎症、肿瘤等有密切关系，近年研究发现它在骨骼重建、骨质吸收以及成骨细胞力学信号转导中发挥着重要作用，主要表现为机械牵拉、流体力、节律性液体流(pulsating fluid flow，PFF)等机械刺激均能引起成骨细胞COX-2高水平表达，进而引起前列腺素(prostaglandins，PGs)量的增加，激活成骨细胞内多条信号传导通路。

Wavelet theory is a newly time-frequency analyse method, which developed in recent years, it has A good resolving power in time domain and...

小波变换理论是近年发展起来的一种新的时-频分析方法，它不但在时域具有良好的分辨率，而且在频域也具有极高的区分能力。

Wavelet theory is a newly time-frequency analyse method, which developed in recent years, it has A good resolving power in time domain and frequency domain.

小波变换理论是近年发展起来的一种新的时-频分析方法，它不但在时域具有良好的分辨率，而且在频域也具有极高的区分能力。

Grid, as a new technology developed these years, is of the foremost characteristic of resource sharing.

网格是近年才发展起来的一门新技术，网格最重要的特征是资源共享。

The U.S. men's team has performed respectably in recent international competitions, and has been in the last five World Cup finals.

美国国家足球队男子队在近年的国际大赛中表现不俗，自

Recent years have seen a resurgence of interest in the role of grammar in English language teaching.

近年，语法在英语语言教学中的作用又重新受到人们的关注。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。