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Proceed from the principle of neural networks, the mechanism of mapping between input and output of neural networks was analyzed, and the BP algorithm for training the thresholds of neurons was derived. Based on the study to the distinguishability of input of networks, the effect of neural networks to distinguish-ability of characteristics was studied, and the optimizations of the structure of networks, learning rate, impulse factor, thresholds of neurons and initial weight of networks were completed. Through the experiments under fixed cutting regime and alternative cutting regime, the methods based on neural networks for tool wear monitoring were studied.

本文从神经网络的基本原理出发，研究了神经网络输入输出的映射机理，探讨了神经网络处理方法具有自适应性的原因；推导了神经元阈值学习BP算法；在研究网络输入特征可分性准则和特征敏感性准则的基础上，探讨了神经网络对特征可分性的作用；完成对网络结构参数、网络学习率和冲量因子、神经元阈值以及网络初始权值等参数的优化；并在固定切削用量和变切削用量条件下，对基于神经网络的刀具磨损检测方法进行了实验研究。

In this paper, we present a detection technology based on intrusion events in order to overcome the shortcomings of high false alert rate, serious redundant alerts and poor expression about the intrusion activities in today's intrusion detection systems. We describe the design ideas about the important methods used in this technology such as multi-sensor data fusion, raw alert distinguishment based on fuzzy rules and so on in detail.

在本文中，我们针对目前入侵检测系统普遍存在的误报率高、报警信息冗余现象严重和对入侵表述能力不强的缺陷，提出了一种基于入侵事件的检测分析技术，详细描述了该技术所采用主要方法的设计思想，如多传感器数据融合以及基于模糊规则的原始报警信息鉴别等。

Knowledge - based economy is based on knowledge producing, distributing and using.

知识经济是以知识的生产、分配和使用为基础的经济。

Firstly, the M-ary modulated Min-Sum algorithm which based on Maximum Liklihood is provided, however, can not be applied to actual decoding due to its complexity. By applying the so called Generalized Distributive Law, we simplified the Min-Sum decoding for M-ary modulated LDPC codes based on Maximum Likelihood, and obtained what we called Enhanced Min-Sum algorithm.

首先基于最大似然的原理给出了多进制调制下的Min-Sum算法，然后利用广义分配率的原理对基于最大似然译码的多进制Min-Sum算法进行了简化，首次提出了多进制调制下LDPC码的改进Min-Sum算法。

At present the main research and the application public key the system crypto-algorithm has two kinds: The RSA algorithm and the ECC algorithm, former based on the great divisor of integers decomposition difficult problem, latter is separated the logarithmic computation difficult problem based on the elliptic curve in.

目前主要研究和应用的公开密钥系统的密码算法有两种：RSA算法和ECC算法，前者基于大整数因子分解难题，后者基于椭圆曲线上离散对数计算难题。

He thinks that true love is originally the flower of life and spiritual noble products and ideal choice of spouse should be based on all kinds of virtues of one's own and divorcement should be based on the principle of love.

他认为，真诚的恋爱本是人生的花，是精神的高尚产品；理想的配偶选择应以个人本身性质上的各种美德为标准；以爱情的有无为婚姻离合的原则。

PAPER BASED TRANSACTION SYSTEMS, MASS PAYMENT SYSTEMS, IMAGE BASED DOCUMENT PROCESSING SYSTEMS, DATA ENTRY SYSTEMS

软件公司，主要产品为：基于票据交易系统、人工扫描收款及支付系统、基于图象的文件处理系统、数据登记系统。

Based on RAPD data, Nei's gene diversity index averaged 0.2523 and Shannon's information index averaged 0.3730, while Nei's gene diversity index averaged 0. 252 3 and Shannon's informative index averaged 0.3958 based on DOGE data.

结果表明：RAPD分子标记显示不同浓度废水驯化的细菌群落的Nei's指数平均为0.252 3，Shannon's信息指数平均为0.373 0；而采用DGGE技术得到不同浓度废水驯化的细菌群落的h平均为0.252 3，I平均为

The main results that have been accomplished in the paper are listed below: 1. Accumulated lots of experimental data of life-parameter signals with the equipment of detecting the wounded. 2. Provided a method of frequency domain signal integration based on FFT to detect non-contact life-parameter signals. 3. Built up an algorithm of lifeform identification which was based on the time and the frequency domain analysis of life-parameter signals. 4. Developed an application software of life identification for the wounded detecting equipment system S2000?

取得的主要研究结果有：1、用现有的伤员探测实验平台采集了大量生命参数信号，积累了实验数据，为信号处理及信号特征提取研究打下良好的基础；2、提出了基于FFT频域积累的方法进行非接触生命参数信号分析与检测；3、综合时域、频域中生命参数信号特征分析的实验结果，形成生命体识别算法；4、为52000—l型伤员探测装备样第2页第四军医大学硕士学位论文机研制了伤员探测生命体识别软件系统。

Framework-related develop activities are described in this paper.At first,the process models on framework development and application development based on framework(i.e.frame-work reuse)are constructed.Based on these two models,some problems ,which include strategy of domain variability man-agement ,adjustment of software architecture during application implementation,evolvement of framework,are discussed.

综合各学者对于软件框架的定义犤2～6犦，可以看出框架具有以下特点：它是面向特定领域的可复用软件制品；反映了应用的体系结构；具有部分实现的特性；基于框架开发应用是通过扩展过程实现的；框架由一组相互协作的构件组成，对于面向对象的框架而言，其组成构件即为类构件。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样