海底观测网中上位机与服务器通信协议的设计

在海底观测网络中,各仪器采集的数据都分别发送到各自平台上位机,各上位机进行数据汇总后分别发送数据到数据管理系统服务器。在对海底观测网中各个设备数据采集格式、数据通信速率、数据通信容量进行综合分析后,设计了上位机与数据服务器之间的通信协议。通信数据包包括包头、包体和校验位,各个上位机通信的包头格式一致,包体结合不同设备的各自特点分别进行设计。根据通信协议开发了相应的客户端和服务器端软件。测试结果表明,通信协议能够完整、正确、高效地完成数据传输。     

网络交互平台数据包的分析与处理

介绍了在网络交互平台应用中流格式和串格式协议两种数据包的格式,并分析它们的组成和封装分解过程,给出两种不同格式协议数据包的应用场合.通过对流格式和串格式数据包封装分解速度的测试,得出在数据包交换频繁的情况下采用流格式的数据包更具有速度优势的结论.     

基于LabVIEW的卫星有效载荷遥测数据解析处理方法

针对有效载荷遥测数据解析处理难以适应不同卫星载荷的地面测试通用性的问题，提出了一种基于LabVIEW的遥测数据解析处理方法。该方法将底层硬件控制及顶层数据分析功能独立，构建一个UDP网络，以JSON数据作为各独立控制系统间交换接口。遥测解析系统接收底层RS422通信系统送来的JSON格式原始遥测数据包，根据可设置的配置文件完成识别遥测包类型、提取预设原始参量、解析参数、存储显示数据，向顶层控制系统转发JSON格式解析后数据。所设计的测试系统经2个卫星载荷的实际工程应用和3个卫星载荷的桌面仿真测试，实现了不同载荷遥测数据解析通用性，可为快速搭建地面测试系统提供设计参考。     

FMet—an integrated framework for Meteosat data processing for operational scientific applications

This paper introduces the FMet software package for the scientific processing of Meteosat SEVIRI data. A number of individual modules handle the processing steps from image format conversion to calibration and product generation and presentation. The package is designed for operational applications. It can be freely extended and configured using a dynamic graphical user interface.     

WSNs中状态数据的n位索引编码式数据融合

通过对节点状态数据的分析设计了一个特殊的包格式,这样可以避免发送节点的节点号;对节点的数据进行聚类处理,可以划分出大概率的数值,并有利于提高n位索引编码压缩的效率;为了减少节点状态数据的编码位数,再对所有的数据进行n位索引编码压缩操作,这样可以大大降低数据传输量。     

网络数据交换中的XML定时数据压缩

XML即可扩展标记语言,是为了在网络中说明和交换数据而制定的标准数据格式,而作为数据载体的XML文档的体积也随着交换数据增多而变得越来越大,这给网络上的数据传输造成了很大的负担.为此,先把数据库里的数据生成XML,再加工成压缩包,就是每一条数据都是xml.zip的压缩包,利用C#编写定时程序进行定时压缩,不用手动,最后用于数据推送.     

盒型CAD系统的设计和实现

为提高折叠纸盒设计的效率和准确度，设计并实现了一个盒型CAD系统．提出了一个盒型数据描述格式PKS．运用参数化设计和零件装配技术生成二维盒型结构图；同时根据二维数据自动生成包装盒的三维模型．     

基于xmI的电子政务系统的数据交换设计

分析了电子政务信息系统的异构性和数据交换的需求,提出建设电子政务数据交换中心的方案及模式,描述了电子政务中的数据交换系统体系结构和功能,然后给出了使用XML定义的包头文件和数据接口文件以及使用的方法．     

Building structural models of peptides: a semi-automatic software

We present a software package that allows the construction and display of structural models of proteins starting from the amino acid sequence written in the one-letter code of standard data bank format. The software includes a very fast and efficient algorithm aimed at finding the global energy minimum of the potential function describing the molecular interactions. The whole package is conceived to have maximum flexibility. Completely automatic procedures are envisaged for standard problems. For non-standard problems, the construction procedure can be interactively adopted to meet with different options.     

VC++与MATLAB混合编程解析卫星下传数据包

太阳辐射监测仪(SIM)是风云三号卫星(FY3)上监测太阳辐射的载荷,在轨运行期间,仪器状态和测试数据保存在固定格式的数据源包中,数据包通过卫星的1553B总线传输到地面观测站,因此对数据包的解读和分析是判断SIM在轨状态的重要手段。本文结合VC++良好的界面编程和MATLAB强大的数据处理能力,通过MATLAB进行混合编程,实现了数据源包的解读和分析。     

ML3200软磁盘质量鉴定仪软件包的二次开发

根据ＭＬ３２００软磁盘质量鉴定仪软件包生成的文件的数据结构，给出了用Ｃ语言编写的转换程序，实现了原软件包没有提供的将ＹＬＤ、ＦＤＴ格式的二进制文件转化为可阅读的文本文件；利用包含出错信息的ＢＩＮ３．ＬＯＧ文件，进行磁道出错分布的统计等两个功能。     

FAST (Flexible Analysis by Software Tool) and CHAMP (CHemico-physical AMinoacidic Parameter data bank): a new tool to investigate protein structure

A flexible package designed to study protein structure is described. The package is devoted to the analysis of protein sequences by drawing structural profiles of specific structure-related amino acid parameters. An Aminoacidic Parameters Data Bank (CHAMP) containing 32 different series of physico-chemical parameters of amino acids is available. Sequences can be loaded from any ASCII format data bank or from keyboard. The program possesses a routine which enables easy updating of the protein data bank and CHAMP Data Bank. FAST reads statistical correlations between two plots in order to identify structural similarities. Plots can be printed, saved or used for correlation, comparison or graph overlap by using common spreadsheets (e.g. Lotus 123). Plots can be smoothed by a running mean or a running median. The program also has a special feature--a global flexibility analysis of proteins. The package runs on IBM or compatibles and requires DOS 3.0 or later.     

JavaEE的Web页面中操纵Word报表

基于Java EE的报表项目,介绍JavaEE的动态页面中利用Word生成报表的方法,描述了Web页面中嵌入Word,并把数据库中取出的数据封装为JSON格式,定位地填充到Word中指定的位置。     

An integrated family of amino acid sequence analysis programs

During the last years abundant sequence data has become available due to the rapid progress in protein and DNA sequencing techniques. The exact three-dimensional structures, however, are available only for a fraction of proteins with known sequences. For many purposes the primary amino acid sequence of a protein can be directly used to predict important structural parameters. However, mathematical presentation of the calculated values often makes interpretation difficult, especially if many proteins must be analysed and compared. Here we introduce a broad-based, user-defined analysis of amino acid sequence information. The program package is based on published algorithms and is designed to access standard protein data bases, calculate hydropathy, surface probability and flexibility values and perform secondary structure predictions. The data output is in an 'easy-to-read' graphic format and several parameters can be superimposed within a single plot in order to simplify data interpretations. Additionally, this package includes a novel algorithm for the prediction of potential antigenic sites. Thus the software package presented here offers a powerful means of analysing an amino acid sequence for the purpose of structure/function studies as well as antigenic site analyses. These algorithms were written to function in context with the UWGCG (University of Wisconsin Genetics Computer Group) program collection, and are now distributed within that package.     

A computational environment for the management, processing, and analysis of geological data

The complexity and diversity of data and processing now being used in geoscientific data analysis are increasing at such a pace that it is difficult to maintain a single software package capable of performing all required tasks. A typical solution is to use a number of commercial software packages loosely linked via file format conversion routines or other customized communication paths. Creating and maintaining these paths is made difficult by both the number of distinct packages being used and the evolutionary changes taking place within each package. In this paper we attempt to create a generic model for a geological data processing task, identify some of the difficulties involved in performing these tasks using current technology, and outline a computational architecture that may correct many of the deficiencies of existing technology. Our goal is not to provide a detailed design but to present some key issues and possible solutions as a foundation for discussion and investigation.     

基于ipkg包管理程序嵌入式Linux的构建与维护

ipkg包管理程序使开发者无需繁琐的交叉编译从而快速构建系统,并使软件的升级过程自动化。该文介绍了ipkg包管理的概念和软件包的格式,说明了如何从一个空根文件系统开始建立ipkg软件环境（即bootstrap过程）,以嵌入式Web服务器为例介绍了构建应用系统的过程,并以某Qt图形系统为例介绍软件包的制作过程。 ipkg;ARM;嵌入式Linux     

通用选择题考试系统

对各学科的选择题采用计算机生成试题，在计算机上进行考试，由计算机实现阅卷和数据处理的无纸化考试，用动态链接库（DLL）对试题进行加密和解密，增强了可靠性和灵活性，采用OLE自动化技术将阅卷结果存入Excel工作表作进一步数据分析。     

基于服务请求代理的劳动保障核心平台框架实现

服务请求代理框架应用平台采用"客户端-中间件服务器-数据库服务器(C-S-S)"的体系架构模式,数据通信层采用Web服务的标准协议SOAP[7-10](Simple Object Access Protocol,简单对象访问协议)来进行数据的封装,采用SOAP协议来对数据进行封装可以很好地在不同平台之间共享与互操作,避免通信层的数据格式特定于某一应用平台,该应用平台采用当前较新的J2EE[11-14](Java 2 Enterprise Edition)技术、Web服务(Web Service)[1-6]技术来实现企业级应用需要高可用性、高扩展性、高安全性等.