三神经的

Although the researchers found no direct link between the prevalence of any birth defect and the level of exposure, their calculations revealed that exposure to high levels of by-products substantially increased the risk of three common defects: ventricular septal defects, cleft palate, and anencephalus (where neural development fails, resulting in the absence of a major portion of the brain, skull, and scalp).

虽然研究人员发现，之间没有直接的联系流行的任何出生缺陷和暴露水平，他们的计算显示，暴露在高层次的，由产品大幅增加的风险三个共同的缺陷：室间隔缺损，腭裂，及anencephalus （如神经发育失败，导致在缺乏一个主要部分的脑，头骨，和头皮）。

Some useful notations and definitions are give in this chapter.In Chapter 2,a class of discrete-time model of two-cell cellular neural networks with symmetric temptate are investigated. We obtain some results about the stability,asymptotic stability,the existence and attractability of 2-periodic solutions.

第三章讨论了反馈矩阵为非对称矩阵的二元离散细胞神经网络模型的稳定性与渐近稳定性、周期解的存在吸引性，除了得到系统稳定和存在2-周期解的相关结果外，还得到了系统在原点出现类似于Hopf分支的局部分支以及多个吸引4k-周期解的共同存在性。

In the first chapter, we introduce the research background and the basic task of this project.

论文第一章主要介绍了课题的研究背景与意义以及基本任务；第二章分析了当前COD测量技术与仪器的现状与特点，并提出了紫外扫描式多光谱COD测量技术；第三章详细介绍了系统的整体结构、光路扫描系统与硬件控制系统；第四章介绍了嵌入式系统的概念、特点，以及软件设计的流程、功能模块与调试分析；第五章介绍了神经网络的概念、建模与实验数据分析；第六章对课题进行了总结与展望，提出了改进的意见。

Firstly, the establishment of model requires sophisticated neurointerventional techniques and costly interventional materials(sacculus, minikin circlip ring, endovascular electrocoagulation), it not only consumed time but also increased the resesrch expense ; Secondly, although the Massoud model is the first successful model that contain the nidus, but it is far from mimicking the high-flow fistulae frequently observed in a brain AVM; Thirdly, the rapid spontaneous thrombosis result in fistula occlusion in a short time;Fouthly, the model's natural course and the long–term patency of fistula are unclear;Currently the model is only used for the short-term research.

但Massoud模型目前存在以下主要缺点：第一，模型的建立需要复杂的神经介入技术和昂贵的介入材料(球囊、微弹簧圈、血管内电凝等)，操作费时，又大大增加了研究费用；第二，Massoud模型虽然首次具备了畸形血管团，但它远不是我们临床上常见的含有高流量动静脉瘘的脑AVM；第三，颈动静脉吻合口自发性血栓形成进而导致引流静脉闭塞的机率很高；第四，Massoud模型的长期自然过程和动静脉吻合口的长期通畅性尚不清楚，目前仅仅作为急性期模型。

Subjects with Benign Rolandic Epilepsy of Childhood are recruited for study. This is because BREC usually exhibits normal neuroimaging finding but has a stereotypic EEG features. In this study, the singular value decomposition technique is utilized to decompose the selected spike interval of BREC into spatial and temporal components.

本研究对良性中央颞叶局部癫痫症状的儿童做实验，此病症之棘波有著良好的稳定性及典型的脑波图特徵，而且做神经影像检查时，一般均为正常，因此必须藉由脑波图时空特性分析，才能定出此一异常波之三度空间位置与其随时间变化的情形。

The three-platform Douglas Complex, sited 24km from the North Wales coast, is the nerve centre of the offshore development.

复杂的 DOUGLAS ，设置这个北方威尔士海岸的 24km ，是海外发展的神经中心复杂的三-站台道格拉斯。

Moreover, the radius of attraction of memorized sample patterns is presented. A Hybrid neural network model for pattern recognition is presented. The model consists of a cascade connection of three neural networks, which are hetero—associative NN、2—D local—connected NN and classification NN respectively.

提出了一种适于模式识别的复合神经网络，它由三个小网：异联想记忆网、局域连接神经网和分类网级联而成，其输入为模式的二维自相关系数，输出为预定的编码，此网可以有效地进行平移不变模式识别，且有很好的容错性和抗噪声能力。

The paper gives stiffness matrix and mass matrix in finite element analysis of the ground vibration problem caused by track traffic by using three-dimension finite element method. Because three-dimension finite element analysis is very difficult, it is transmitted into a quadratic programming, which can be calculated by neural network.

本文融合神经网络技术和遗传算法，对轨道交通引起的地面振动进行了正分析和反演，并利用计算机技术实现了地面振动的三维动画模拟，这主要包括：(1)研究了压缩映射遗传算法，利用Banach空间的不动点定理证明了压缩映射遗传算法可以收敛到全局最优值，弥补了标准遗传算法不能收敛至全局最优值的不足。

In chapter 5, the frame of underwater target fusion recognition system is presented, the feature extracting module of LOFAR spectrum feature, envelop spectrum feature, third-cumulant diagonal slide spectrum feature, waveshape feature, are implemented in turn. The GBB based data fusion system is prsented in the last part of this chapter.

论文的第五章首先给出了基于多神经网络多特征的水下目标融合识别系统框架；然后描述了系统中LOFAR谱特征模块、包络谱特征模块、三阶统计量对角切片谱特征模块、波形结构特征提取模块的实现过程；最后首次构造了基于通用黑板的融合识别系统。

The three-layered feedforward neural network and its learning methods are studied in this work, where new neural network model and the network learning algorithms are presented.

本文主要研究三层前向神经网络及其学习问题，在此基础上提出新的网络模型和学习算法，目的是为了克服基于传统的BP算法的前向网络存在的网络结构和。。。

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。