提取信息

By reducing its dimensions through matrix conversion using the algorithm, the fault feature of condensator in the marine propulsion plant was extracted.

详细介绍了一种特征提取方法—主成分分析方法，运用该方法，经过矩阵变换、降低维数以提取故障信息的主要特征，实现了对船舶动力装置冷凝器的故障特征提取，为船舶动力装置冷凝器故障诊断及故障预报问题提供了一种有效可行的数据预处理方式

The ore deposit remote sensing geology is an interdisciplinary study of gitology and remote sensing geology,which syncretizes the methods of deposit geology and remote sensing geology to identify the inherent relationship between deposit characters and remote sensing information,distinguish the linear and ring structures and their grade system from numerous and complicated lineaments and rings,extract exploration information of tectonic,intrusive body,tectonic denude station and week geology information,such as alteration, special rock and so on.

矿床遥感地质学将矿床学与遥感地质学、矿床地质方法与遥感地质方法相融汇，从成矿地质环境、矿床展布规律及矿床特征出发，识别矿床特征与遥感信息之间的内在联系，厘定纷繁复杂的线性构造、环形构造以及它们之间的组合关系和等级体制，提取构造、侵入体、构造剥蚀程度以及遥感数据中地质弱信息(蚀变信息、特殊岩性信息等)等找矿信息，为快速圈定勘探靶区提供依据。

Gu Ge comes to all these information from the collect on whole Internet, it has all news classified, extraction gives crucial information, these information are no longer provide an user desultorily, help an user search them however most wanted information.

这一切信息都是谷歌从整个互联网上搜集来的，它把所有的信息进行分类，提取出关键信息，这些信息不再是杂乱无章地提供给用户，而是帮助用户寻找他们最想要的信息。

Disclosed are information display device and method for image display instrument which analysing the received weather information, date information and area code in the auxiliary information, extracting the weather information of relative area, corresponding the weather information to the preset weather index and life index, and displaying the result together with the image signal which is received in a preset period on the sereen.

本发明公开了一种图像显示仪器的信息显示装置及方法，分析被接收的附加信息中的天气信息，日期信息及地区代码等，提取用户收看的相应地区的地区天气信息，将相应的天气信息与已设定的天气指数及生活指数等对应起来，将其与按已设定的设定时间为周期接收的图像信号一同显示在屏幕上。

As a new research area, Information Extraction aims at extracting theinteresting information from the unstructural electronic texts (such as news,literature and materials, including the information on the Net) and convertingthem into structural database file, which is easy for the users retrieval, statisticsand decision.

针对从非结构的电子文本提取感兴趣信息，并将其转换成结构数据库文件，方便用户检索、统计和决策支持，信息提取被看作新的研究领域。

Based on morphological principle,AMEE method which integrates spatial and spectral information to select endmembers is able to provide a relatively good characterization of general landscape conditions.

首先利用自动形态学端元提取方法寻找影像的纯净端元，此方法基于形态学理论，结合像素的光谱信息和空间信息，可以更精确地提取纯净端元。

The system is designed according to the mechanism of CAD Standard Part Graphies Files. SQL Server 2000 is selected as the host and construct the database of part liabrary due to characteristic parameter. STEP, viz. ISO 10303, is issued by international standardization organization, and here ,this paper gives the definition of product information model oriented part41 and part44 in STEP and six basic definienses which describe the product information to ensure the information in the product information model correct and shareable . This paper also presents method of creating and extracting product information on engineering draught and product data exchange and integration between CAD system and database manager system.

论文中采用&CAD标准件图形文件机制&，用SQL Server2000数据库建立了零件的特征参数数据库，完成了零件库的特性参数库建库工作；依据国际标准化组织的STEP标准即ISO 10303中的Part41，Part44两部分内容以及STEP标准中描述产品信息的六个基本的类库定义，提出了一种产品信息模型，保证了产品信息模型中信息的正确性和共享性，实现了工程图样中产品管理信息的建立和提取以及数据库系统与图形文件中的管理信息交换与集成。

During the first part, investigate the numbers and location of the different nature reserve, and review about its development, discuss the cause about the rapid developmeng about the protection areas of nature around Beijing. During the second part, this paper use the Geographical Information System to analyze the different sight function, plot our distinct function about the protection area of nature around Beijing. In the third part of this paper, the ecology function was special analyzed. This paper picked up several factor about the ecology and establish mathematics model to detect the most rational ecology distribution, bring forward the new constructive, wilder constructive and combination project. In the last parts of the paper, this paper use the Geographical Information System to analyze the different brim about the protection area of nature around Beijing, calculating the p/a and figure coefficient, and bring forward the brim theory for the nature reserve and city system.

在数量布局方面，包括北京周边各个不同级别的保护区的数目、位置分配布局和发展趋势研究，探讨北京市周边自然保护区数目和面积在99年和2000年突然增长的主要原因，以及今后北京自然保护区的发展方向；在景观布局方面，主要根据不同自然保护区的空间和功能的不同，计算延庆县各个自然保护区的景观多样性指数和景观优势度指数，并结合地理信息系统和航片，划分出不同的景观功能区间，以及各个功能区间之间的相互关系；在生态布局方面，综合考察北京周边自然状况，提取多项因子，建立评价模型，计算出各项因子权重，从而对其自然保护区的生态功能布局的合理性进行评价和趋势分析，为本文提出北京市周边自然保护区新建、扩建与合并的方案提供依据；在边缘布局方面，利用边缘效应理论和研究方法，创新提出&边缘类型样块分析法&，提取多个样方并结合地理信息系统，计算p/a比和自然保护区边缘的形状系数，划出自然保护区边缘效应趋势变化图，考察北京周边自然保护区的边缘效应，以及对城市的生态边缘功能。

Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

全文论述的内容主要有下列几个方面：(1)较为系统地阐述了CAD／CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程，在分析工艺设计过程的基础上，提出了基于特征原型的渐进式工艺设计方法，并探讨了该方法的应用前景；(2)研究了零件特征提取的原则和方法，在成组技术的基础上，开发了一套基于特征的分类编码系统，并在提取零件特征的基础上，定义了零件特征的数据模型，开发了基于轴类零件特征的参数化设计系统；(3)研究了基于特征的CAD／CAPP集成的方法，通过定义零件特征数据模型的存储结构，开发了将设计数据转换到工艺数据库中的接口程序，为后续的CAPP系统提供必要的零件形状和工艺信息；(4)研究了基于特征的工艺推理方法，将Mycin算法应用到工艺决策中，开发了基于特征的工艺推理及工艺方案生成系统，在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺；(5)介绍了整个HOPE系统的总体结构，通过运行HOPE系统绘出了一轴类零件的零件图，并生成了该零件的加工工艺方案，初步探讨了基于特征的工序图生成技术中数据处理问题；(6)研究了工艺设计过程中知识如何有效表示的问题，提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法，并利用BP算法进行了工艺知识表示的初步研究；(7)研究了工艺设计过程中同一安装下工步优化排序问题，利用神经网络中基于模拟退火的理论来解决该工步优化排序问题，实践证明该方法较传统的算法具有更高的效率；(8)总结了本文所进行的研究工作，为今后进一步开展工作提出了较为合理的建议。

The demodulated resonance technique combined with spectrum analysis and fuzzy-closest-principle were developed and applied to the fault diagnosis of bearings in drilling pump.

为了解决钻井泵轴承故障特征难以提取的问题，采用共振解调技术来提取深埋于正常振动信息中轴承的故障信息，在此基础上进行频谱分析。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失