数据

The design includes many new technologies in data exchange and data security, they are: Converting non-XML data to XML in order to apply the XML security technology to more data types; Using the technology of XKMS and PKI to manage the public key in order to overcome the shortage of complexity and difficulty in using PKI and improve the efficiency of the public key management; Using Diffe-Hellman algorithm combining with the public key technology to exchange secret key in order to furthest increase the security of the key; Using the technology of XML digital signature algorithm to ensure the integrity, message authentication and signer authentication of the data; Using the technology of XML encryption to ensure confidentiality of the data; Defining delegable access rules on the structure and content of the XML documents to provide fine-grained access control. According to the XML security framework, a XML security library is designed and implemented.

在对XML及其安全技术主要包括XML加密技术、XML数字签名、公钥管理、密钥产生和交换进行研究的基础上，结合传统密码技术和XML安全技术提出了一种基于XML的数据安全模型，模型中包含了目前网络数据交换和安全领域的一系列最新技术，主要有：将非XML格式数据转换为XML格式数据的方法，以保证现有的大部分网络数据能够应用XML安全技术；使用XML公钥管理技术结合PKI技术管理公钥，以克服PKI技术实施和部署复杂、难度大等问题，提高公钥管理的效率；使用Diffie-Hellman算法结合公钥技术交换密钥，以最大限度保证密钥的安全；使用XML数字签名技术保证数据的完整性、不可否认性和发送方身份认证；使用XML加密技术保证数据的机密性；根据XML文档的内容和结构定义授权访问规则进行良好的访问控制。

It describes mainly the process of systemdesign, including whole design, detail design, database design , security design, data structure and data code scheme, It introduces in detail how to create a graphic file of pipeline data on the MicroStation platform, and the exchange of data between the MicroStation and other GIS application software, At the same time, it introduces how to realize popular manage mode of GIS data on the MicroStation GeoGraphics, namely integratinggraphics and attribute.

本文在分析长沙市地下管线数据现状和目前数据管理情况的基础上，指出建立长沙市城市地下管网信息系统的必要性和紧迫性，阐述了系统的设计过程，包括总体设计、详细设计、数据库设计和安全设计，讲述了系统的数据组织方式及数据编码方案，并详细介绍在MicroStation平台下如何处理数据生成管网图形文件，阐述了系统实现的方法、过程以及与其它系统如何实现数据交换，也介绍在MicroStation GeoGraphics下如何实现当今GIS较为流行的数据管理模式：图属一体化。

The major achievement of this paper is: Based on characteristics of the traffic data distribution, execute pattern recognition operations on traffic condition on two dimensions by clustering, then use BP neural network to describe and forecast traffic flow aiming at each pattern. Making use of classic flow-occupancy inverse "V" model, implement polynomial fitting using least-squares algorithm and statistics method on flow curves to detect outliers which are proved to be not accord with practice through the actual implement, then use the moving average model to recorrect the outliers and absent. Make correlation analysis on muti-direction flow queues of the intersection and ones of upriver intersections, choose flow queue with high correlation as assistant one to improve the error tolerance of the prediction system, at the same time we can use the method to give an estimation of flow in intersection with out sensors. We design and implement an SOA(Service-Oriented Architecture)-based UTDD(urban traffic data mining development) with high expansibility and performance, which implement unified management and call of the data-mining application though defining a XML-based description of data-mining process and a common interface to call data-mining process, finally we build traffic flow prediction application model on UTDD.

根据交通流量数据分布的特征，提出基于k-means的二次聚类方法，对交通流量在流量大小和时间上进行模式划分，进而对各个交通流模式进行基于BP神经网络的描述和预测，从而提高模型对流量预测的精度； 2）根据流量/时间占有率倒&V&字形曲线分布模型，提出基于最小二乘法的三次多项式曲线拟合和统计方法的异常检测方法，实际应用表明该方法能够有效识别异常数据，然后根据移动平均算法对异常数据进行修正； 3）基于序列相关性分析，分别对预测方向的交通流量数据序列、上游路口相关序列以及预测路口其它各个方向上的交通流量序列进行分析，选择相似性流量序列，作为辅助序列提供其他没有检测器路口的流量估计； 4）设计和实现了基于SOA（Service-Oriented Achitecture）的高性能、可扩展的智能交通数据挖掘系统UTDD，该系统通过定义基于XML的数据挖掘过程描述和通用的过程模型接口，实现数据挖掘应用的统一管理和调用，最后在UTDD上建立了基于路口流量预测的应用模型。

In a contactless IC card that performs envelope detection on an ASK-modulated carrier wave and demodulates the carrier wave to recover data piggybacked thereon, demodulation is suspended during periods where there is no possibility of a change of a data value (from data 0 to data 1, or from data 1 to data 0) in the digital data piggybacked on the carrier wave.

一种非接触式IC卡，其作用是检波经ASK调制过的载波的包络线和对载波进行解调以恢复承载在载波上的数据。在这种非接触式IC卡中，在承载在载波上的数字数据的数据值不可能变化（从数据0变成数据1，或从数据1变成数据0）期间暂缓进行解调操作。

Aiming at the actual situation that there is a mass of daily operation data kept in enterprise databases and the developing trend of domestic AIS, a data organizing structure of the Data Warehouse applied to accounting information analysis and a method of data superadding are described. Choosing Star Schema as multi dimension analysis model, OLAP is applied to data operations to achieve decision analysis.

针对企业数据库中已保存了大量日常业务数据的现况和我国会计信息系统向管理型、企业化发展的趋势，提出将数据的信息型处理与事务型处理分离，构建基于数据仓库的企业管理信息系统，设计了一种面向会计信息分析的数据仓库的数据组织结构，给出数据追加的方法，以星型模型为多维分析模式，运用OLAP对数据进行各项操作，实现决策分析

The acquisition date of ETM+ is October 29, 1999. We get digital elevation model data from (1∶)250 000 topography map of Minhe area. The format of DEM is MapInfo exchange format *.mif which converted to coordinate. After primary treatment of the raw data, the DEM data is derived from the contour line. The ETM+ scenes are rectified using the DEM and sun-illumination model. NDVI and other three indexes from Tasseled Cap transform were calculated from RS data.

依据其理论方法，对青海省民和地区的遥感数据--ETM+进行了分类，选用的ETM+数据为1999年10月份数据，数字高程数据来自于1：25万民和幅地形图，数据格式为MapInfo通用格式MIF，数据进行了坐标转换，对原始数据进行了处理，从等高线中提取数字高程。

The modular design of printNet system is divided into several application part, such as data processing tools, design tools, products, Business card printing tools, and solutions to technical tools, of which the highest is a design tool over the actions that it printLayout from page formatting and setting variables, but also can be used by an operator in a transform tool programming, so that the contents of the variables in a database in output for operations, now produetion of mostly to one-dimensional bar codes and encrypted bit or anti-false, the party is a method in the bar code by addition, subtraction, multiplication, Division, opinins Mo, and so after the results or the results of data, or the result is converted to the data that corresponds to a location in one of the ntehs detection accuracy is valid, just make a bit of the inverse operation, the operation that results in comparison with the original data, such as the same as the data is valid, such as different then the data is not valid, this scenario is the most simple and most primitive anti-counterfeit. PrintNet software to complex product environment " interpuntion and output the integration of integrated management " solution possible.

printNet系统的模块式设计分为几个应用部分，如数据处理工具、设计工具、产品制卡工具以及方案解决工具，其中技术含量最高的是对设计工具printLayout的操作，它除了设计页面格式和设置变量外，还可由操作员在转换工具中编程，以便对数据库中的变量内容在输出时进行运算操作，现在生产中应用的大多是给一维条码加校验位或是防伪加密，其方一法是将条码中的数据经过加、减、乘、除、取莫等运算后，将结果或将结果中的几位至于数据后，或将结果转换成对应符号放在数据中的某个位置，如须检测某一数据是否准确有效，只要把校验位上的数进行逆运算，把运算结果与原数据比较，如相同则数据有效，如不同则数据无效，这种方案是最简单最原始的防伪加密的方法。printNet软件系统使得在复杂产品环境下的&排版与输出一体管理&的集成解决方案成为可能。

Electronic map of MapInfo is introduced into the environment of object oriented by the use of Map X 4.0 module. The operations such as dynamic add, delete and edit of objects can be done real-time dynamically by operators in the environment of object oriented on the present diagram of polder region. At the same time, the spatial-data and attribute-data of irrigation district are managed separately. The spatial-data is used by the file system, whereas, the attribute-data exist in the relevent database. The figures and database are related through the only ID number in order to realize two-way inquiry, so that, the polder region river system planning data are collected automatically. Moreover, this system make the great use of GIS advantage in storing and annalising data to automatically organize files needed in river network calculation , adopt one-dimensional unsteady flow model , so as to lay out height of river levee .

把GIS技术引入水系规划，通过MapX4.0组件把MapInfo电子地图调入面向对象编程环境，使操作人员能在面向对象环境中对圩区现状图进行实时动态操作，包括对操作对象的动态添加、动态删除、编辑等；同时，将空间数据和属性数据分开进行管理，空间数据用文件系统管理，属性数据采用数据库管理，通过建立唯一ID号进行数据联接，将图形与数据库进行关联，实现属性到图形或图形到属性的双向查询，从而实现了圩区水系规划部分数据的自动采集；另外，本系统充分利用GIS存储与分析数据的功能，自动生成河网水力计算所需的文件，采用一维非恒定流模型进行河网水力计算，为确定沟道堤顶高程提供依据。

The invention discloses a method and device for acquiring environment data collecting in honeycomb traveling carriage localizing system and GPS, A-GPS, the collecting device comprises collecting unit with time lag distribution power which connects with honeycomb traveling carriage receiver and GPS receiver, power time lag distribution pretreating unit, environment data extraction unit and managing unit; the method includes: determining the type of input data, gathered power time lag distribution, power time lag distribution pretreating, environment data extracting and synthesizing.

本发明公开了一种适用于蜂窝移动台定位系统和GPS、A-GPS系统的获取环境数据的装置和方法，该环境数据采集装置包括与蜂窝移动台接收机和GPS接收机相连的功率时延分布采集单元、功率时延分布预处理单元、环境数据提取单元和管理单元；本发明所述环境数据采集方法包括确定输入数据的种类、采集功率时延分布、功率时延分布预处理、环境数据提取和环境数据综合。

To deal with the problems and present situation of field data capture by computer in geological mapping in 20 years, this paper has created PRB digital mapping techniques to standardize the digital mapping process and discussed PRB mapping technique-method system, including PRB digital mapping techniques, the model of PRB data and the related process, combinational regulations of PRB process, common mechanism and basic procedure of PRB process, data processing and dictionary of PRB, three-class PRB system,...

从近 2 0年地质填图中计算机野外数据采集技术研究的现状和存在的问题入手，在确定地质填图空间数据表达的基础上，遵循传统地质填图的规律，在不约束地质学家地质思维的前提下，既能满足计算机处理的需要，又能保证地质工作者取全、取准各项地质观测数据，在描述各类地质信息空间关系的基础上，创建了数字地质填图过程标准化和规范化的PRB数字填图技术，并对构成PRB数字填图技术、PRB数据模型、PRB基本过程、PRB基本过程组合的规则、PRB过程的公共机制、PRB过程基本程式、PRB数据操作、PRB字典、三级PRB体系、PRB数据流&栈&、PRB数据质量定量评价体系的PRB数字填图技术与方法体系进行了讨论。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。