网络

A methodology of noise-like key generation is presented. Chaotic process of tentmap function is used as a deterministic generation of noise-like key, image storage and retrieval are completed in a algebraic form. A mathematics model of noise-like chaotic coding memory is constructed, meanwhile the basic mechanism of circulant convolution and circulant correlation in image information storage and retrieval are demonstrated.

在详细阐明数字序列和字母序列的1-D映射函数设计方法的基础上，利用构造出的1-D映射的稳定周期环和不稳定极限环完成了存储和联想记忆功能，为了识别有关的输入信息，提出了映射函数直接控制的方法；在此基础上，提出了一种1-D映射型混沌神经网络模型，该网络本身不当作一个"黑箱"处理，网络的参数值由网络中实现的映射函数来确定，该网络模型具有联想记忆、容错性、模式识别和奇异滤波等一系列智能信息处理的基本功能。

Achieved has been able to construct each kind of structure nimbly the network analysis situs, manifested each kind of networking, realized networking training and the network theorem teaching goal, simultaneously gave the engine room to reserve the promotion condition, reduces cost which the network and the hardware development brought.

达到了能灵活地构建各种结构的网络拓扑，体现各种网络技术，以实现网络技术培训及网络原理教学的目的，同时给机房预留了升级的条件，减少网络与硬件发展带来的成本。

The network security is an affected area very widespread question, the topic research content: The network security rank, the data encryption technology, the firewall technology concept, the function, introduced the network security faces main threat as well as question countermeasure, and through the example some company network analysis situs chart from the analysis network security movement environment explained the example plan as well as supplements four safe disposition.

网络安全性是一个涉及面很广泛的问题，课题研究的内容：网络安全级别、数据加密技术、防火墙技术的概念、作用，介绍了网络安全面临的主要威胁以及问题的对策，并且通过实例某公司网络拓扑图从分析网络安全的运行环境来说明实例方案以及补充四点安全的配置。

And the composing of the network of ASW in the network centric antisubmarine warfare is introduced, the basic function of the network of ASW and the relationship of the sub-net is discussed especially, and then the threaten to the submarine operation from the network centric antisubmarine warfare is presented.

介绍了美军网络中心反潜战中的反潜战网络组成，探讨了反潜战网络的基本功能、各子网络的关联和网络中心反潜战对潜艇作战的威胁。

Because of appearing empty aggregates in the time zone (the time zone do not include the information), we only establish the indeterminate grey differential equation according to the approximate condition of the differential equation.

利用灰色微分方程中的最小二乘估计参数：进而得到灰色神经网络初始的权值及阈值，这样使初始的权值和阈值更接近准确值，克服了以往BP网络中初始权值的随机性和不确定性，减少了网络的训练次数，提高了网络收敛速度和输出的精度，为避免网络训练陷入局部极小值也起到了重要的作用。

The paper supposed that cluster governance has multi- ple governance forms including network governance,market governance and hier- archy governance.Moreover there is"Double Network"consisting of economic network and social network in the organization of industrial cluster,which induce the"Mutual Embeddedness".

本文在阐释了网络治理内涵的基础上，提出集群治理具有以网络治理为主，市场治理、层级治理为辅的多元治理模式；产业集群组织内部存在经济网络和社会网络，该"双网络"引致"互嵌"机制。

According to the approximation ability of WNN, the nonlinear system is able to be modeled, obvious effect was shown in process modeling of residuum cracking and prediction of asphaltum yield and pyrolysis gas yield.

利用小波网络的逼近性，对非线性系统进行建模和预测，通过渣油裂解的实例，将小波网络与RBF网络作为对比，可以看出，小波网络的建模和预测效果都优于RBF网络。

Algorithm application of neural networks.Ⅲ Implementation of neuro-computers. The main contribution of the dissertation can be summarized as follows: 1 Hopf bifurcation of three kind of neural networks are discussed in detail, including type of discrete time delay, type of time delay with weak kernel and strong kernel as well as the proof of existence of bifurcation. Other problems such as asymptotic stability of bifurcation periodic solution, algorithm of determining the bifurcation direction, asymptotic stability and style of periodic solution are also studied. The average time delay is chosen as the bifurcation parameter, phenomena pertinent to system states of the continuous time delay network with strong kernel evolving from stable to oscillating, then back to stable again are observed.

论文的主要创新之处可以归纳如下： 1）针对目前国内外对神经网络的分岔研究较少的情况，论文中详细讨论了带离散时延神经网络、带弱核的连续时延神经网络、带连续分布时延且具有强核的神经网络的Hopf分岔现象，从理论上证明了Hopf分岔的存在性，并研究了分岔周期解的渐近稳定性，得到了确定周期解的渐近稳定性、分岔方向、周期解的渐近形式的算法；用平均时延作为分岔参数，发现带强核的连续时延神经网络中存在着系统的状态由稳定变化到振荡现象，当继续增加平均时延参数时，又从振荡变为稳定这一特殊的动力学现象。

The company's main business includes: installation of network cabling project services, cable / fiber jumper / pigtail products such as optical fiber system, the whole room works, security surveillance systems, broadcasting systems, mine grounding, computer network Systems integration, network optimization, network planning and design, safety assessment system, network management consulting, and network equipment sales.

公司的主要业务包括：网络布线工程安装服务、光缆/光纤跳线/尾纤等光纤系统产品、整体机房工程、安防监控系统、广播系统、防雷接地；计算机网络系统集成、网络优化、网络规划设计、系统安全评估、网络管理咨询、网络设备销售。

At present, treatments at network security problem only some network security strengthen telecommunications of Kweichow IP network and network security the arrangements of products, Lack a piece of whole tactics of network security, can"t give play to the utility of the products of network security the best ."

目前，贵州电信IP网络在网络安全问题上的处理仅仅是局部的网络安全加固和部分网络安全产品的部署，缺乏一个整体的网络安全策略，不能将网络安全产品的效用发挥到最佳。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。