COMPUTING AREAS BOUNDED BYRATIONAL BEZIER CURVES

ＣＯＭＰＵＴＩＮＧＡＲＥＡＳＢＯＵＮＤＥＤＢＹＲＡＴＩＯＮＡＬＢＥＺＩＥＲＣＵＲＶＥＳＧｕｏｊｉｎＷａｎｇ；ＴｈｏｍａｓＷ．ＳｅｄｅｒｂｅｒｇＣＯＭＰＵＴＩＮＧＡＲＥＡＳＢＯＵＮＤＥＤＢＹＲＡＴＩＯＮＡＬＢＥＺＩＥＲＣＵＲＶＥＳ￥ＧｕｏｊｉｎＷａｎｇ...     

A CONFIGURATION SYSTEM FOR FASTENER DESIGN（AN APPROACH TOWARDS COMPUTER AIDED CONCEPTUAL DESIGN）

ＡＣＯＮＦＩＧＵＲＡＴＩＯＮＳＹＳＴＥＭＦＯＲＦＡＳＴＥＮＥＲＤＥＳＩＧＮ（ＡＮＡＰＰＲＯＡＣＨＴＯＷＡＲＤＳＣＯＭＰＵＴＥＲＡＩＤＥＤＣＯＮＣＥＰＴＵＡＬＤＥＳＩＧＮ）ＧｕａｎｇＺｈｏｎｇ；ＭｉｋｅＤｏｏｎｅｒＡＣＯＮＦＩＧＵＲＡＴＩＯＮＳＹＳＴＥ...     

双曲守恒律的拟单调二阶格式

双曲守恒律的拟单调二阶格式胡长青（中国科学院计算中心）ＳＥＣＯＮＤ－ＯＲＤＥＲＱＵＡＳＩＭＯＮＯＴＯＮＥＳＣＨＥＭＥＳＦＯＲＣＯＮＳＥＲＶＡＴＩＯＮＬＡＷＳ￥ＨｕＣｈａｎｇ－ｑｉｎｇ（ＣｏｍｐｕｔｉｎｇＣｅｎｔｅｒ，ＡｃａｄｅｍｉａＳｉｎｉｃａ）Ａｂ...     

粘性项参与构造的隐式矢通量分裂格式及其数值模拟

粘性项参与构造的隐式矢通量分裂格式及其数值模拟刘仪，曹琦，刘斌（西安交通大学涡轮教研室）ＩＭＰＬＩＣＩＴＦＬＵＸＶＥＣＴＯＲＳＰＬＩＴＴＩＮＧＳＣＨＥＭＥＳＷＩＴＨＶＩＳＣＯＵＳＡＮＤＮＵＭＥＲＩＣＡＬＳＩＭＵＬＡＴＩＯＮ￥ＬｉｕＹｉ；ＣａｏＱｉ；Ｌ...     

THE CADD AND SIMULATION SYSTEM OFTHE NEW-TYPE GEAR

ＴＨＥＣＡＤＤＡＮＤＳＩＭＵＬＡＴＩＯＮＳＹＳＴＥＭＯＦＴＨＥＮＥＷ－ＴＹＰＥＧＥＡＲＨｏｎｇＨａｎｙｕ；ＧｕａｎＲｏｎｇｃｈａｎｇＴＨＥＣＡＤＤＡＮＤＳＩＭＵＬＡＴＩＯＮＳＹＳＴＥＭＯＦＴＨＥＮＥＷ－ＴＹＰＥＧＥＡＲ￥ＨｏｎｇＨａｎｙｕ；ＧｕａｎＲ...     

一种并行计算K阶线性递归N方程组的新方法

一种并行计算Ｋ阶线性递归Ｎ方程组的新方法朱大铭，马绍汉，马军（山东大学计算机科学系、济南２５０１００）ＡＮＥＷＭＥＴＨＯＤＦＯＲＳＯＬＶＩＮＧＴＨＥＳＹＳＴＥＭＯＦＫ－ＴＨＯＲＤＥＲＬＩＮＥＡＲＲＥＣＵＲＲＥＮＣＥＥＱＵＡＴＩＯＮＳＩＮＰＡＲＡＬＬＥ...     

两类求解二阶周期性初值问题具有极小相位延迟的高精度显式法

两类求解二阶周期性初值问题具有极小相位延迟的高精度显式法向开理（西南石油学院）ＨＩＧＨ－ＡＣＣＵＲＡＣＹＥＸＰＬＩＣＩＴＭＥＴＨＯＤＳＷＩＴＨＭＩＮＩＭＡＬＰＨＡＳＥ－ＬＡＧＦＯＲＴＨＥＩＮＴＥＧＲＡＴＩＯＮＯＦＳＥＣＯＮＤＯＲＤＥＲＰＥＲＩＯＤＩＣ...     

并行工程过程管理系统

并行工程过程管理系统吴祚宝，熊光楞（清华大学国家ＣＩＭＳ工程研究中心北京１０００８４）ＰＲＯＣＥＳＳＭＡＮＡＧＥＭＥＮＴＳＹＳＴＥＭＦＯＲＣＯＮＣＵＲＲＥＮＴＥＮＧＩＮＥＥＲＩＮＧ￥ＷＵＺｕｏｂａｏ；ＸＩＯＮＧＧｕａｎｇｌｅｎｇ（ＳｔａｔｅＣＩＭＳＥ...     

帝国时代Ⅱ密技

ＡｇｅｏｆＥｍｐｉｒｅｓ２在游戏进行中按下ＥＮ－ＴＥＲ键,然后在对话框中输入以下密码即可：ＲＯＣＫ　ＯＮ：得到１０００块石头ＬＵＭＢＥＲＪＡＣＫ：得到１０００块木头ＲＯＢＩＮＨＯＯＤ：得到１０００条金ＣＨＥＥＳＥＳＴＥＡＫＪＩＭＭＹ'Ｓ：得到１０００食物ＭＡＲＣＯ：显示地图ＰＯＬＯ：移动阴影ＡＥＧＩＳ：加快建筑ＮＡＴＵＲＡＬＷＯＮＤＥＲＳ：控制大自然ＨＥＳＩＧＮ：任务失败ＷＩＭＰＹＷＩＭＰＹ－ＷＩＭＰＹ：破坏自已ＩＬＯＶＥＴＨＥＭＯＮＫＥＹＩＩＥＡＤ：得到ＶＤＭＬＨＯＷＤＯＹＯＵＴＵＲＮＴＨＩＳ…     

Navier－Stokes方程模拟湍流非对称脱体涡流动

Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程模拟湍流非对称脱体涡流动蔡晋生，罗时钧（西北工业大学）ＮＡＶＩＥＲ－ＳＴＯＫＥＳＳＯＬＵＴＩＯＮＳＦＯＲＡＳＹＭＭＥＴＲＩＣＴＵＲＢＵＬＥＮＴＶＯＲＴＩＣＡＬＦＬＯＷＳ￥ＣａｉＪｉｎｓｈｅｎｇ；ＬｕｏＳｈｉｊｕｎ（Ｎｏｒ...     

西文编目中的CNMARC到USMARC转换系统的设计与实现

在分析编目数据从CNMARC格式到USMARC格式自动转换可行性的基础上,研究了两种MARC的字段和字符内容对应关系,找出其中的对应规律,编制出转换关系对应表,设计了西文编目中的CNMARC到USMARC的转换软件,实现了两种MARC格式的平滑转换。     

系统级入侵检测技术研究

计算机系统安全的“免疫系统”方法是在研究了特权程序对应的系统调用短序列具有很强的稳定性的基础上提出的。系统调用短序列与生理免疫系统中用于区别病菌和其他有害物质的缩氨酸(一种蛋白质片断)类似,可作为用户程序行为模式。该文提出了一个基于“免疫系统”方法的Linux系统级入侵检测模型,并讨论了此入侵检测模型的实现技术。     

基于WEB的人工神经网络材料设计系统

开发了一个基于WEB的人工神经网络材料设计系统。该系统用DelphiMIDAS技术结合ActiveX技术实现对数据库的维护;利用MATLAB的WEB技术结合其数据库工具箱和神经网络工具箱编写程序,从材料数据库中获得数据进行神经网络计算,并将结果通过WEB服务器返回给浏览器。     

MatSeek: An Ontology-Based Federated Search Interface for Materials Scientists

The MatSeek system is an ontology-based federated search interface to key materials science databases and analytical tools. By combining Semantic Web and Web 2.0 technologies, MatSeek provides materials scientists with a single Web interface that enables them to search across disparate databases containing crystal-structure data, ionic-conductivity data, and phase stability data; render 3D crystal-structure images; calculate bond lengths and angles; retrieve relevant scholarly references; and identify potential new materials with the structure and properties required to satisfy specific applications. The MatOnto ontology underlying MatSeek enables integration of data across disparate databases, and Web 2.0 technologies enable iterative searching across the databases. The results retrieved from searching the previous database are used as input to the query on the next database. By providing materials scientists with a single, integrated Web interface to the critical materials science databases and analytical tools, MatSeek represents a significant advance toward a full-fledged materials-informatics workbench.     

A design environment for laminated fiber-reinforced thick composite materials

The research described herein concerns the integration of several components of engineering software using a relational database. More specifically, a conceptual finite element material preprocessing system for laminated fiber-reinforced thick composite materials is studied. In this computer-aided analysis (CAA) system, a materials database is integrated with several software components, including commercially available finite element analysis (FEA) programs and preprocessors, and tools for the design of laminated composite materials. The system focuses on assembling, manipulating and using composite materials data, resulting in the transfer of 2-D and 3-D composite materials property data into a finite element analysis program. The system is life-cycle in nature, supporting a composite through testing, analysis and design. it offers great versatility in its ability to use raw ply data from any source, design layups, and generate laminate properties and FEA materials data files. Despite the fact that such integrated systems are not new in many domains, they have not been successfully introduced to the redlm of composite materials analysis and design. This outcome is due largely to the nature of the materials themselves and the overhead they bring to the development of a successful life-cycle model.     

基于Z39.50的联机书目检索服务

联机书目检索服务是在网络环境下图书馆应当向读者提供的重要服务.基于Telnet或者Web的联机书目检索服务存在检索接口不一致的问题,而Z39.50协议为这种问题提供了解决办法.文章描述了一个基于Z39.50的联机书目检索服务系统.该系统支持中文检索和包括CNMARC在内的多种MARC(machine-readable cataloguing)类型,具有灵活的可配置性和可伸缩性.文章还给出了系统的主要技术设计,并与已有的相关系统进行了简单的比较.     

航天器材料及器件地面模拟试验数据库系统设计与实现

针对航天器材料及电器元件地面模拟试验数据资源的汇聚与共享,提出航天器材料及器件地面模拟试验数据库系统的设计与实现。根据地面模拟试验数据库系统的业务需求和技术指标制定设计方案,基于B/S架构,采用VUE.js、EXT.js、JAVA、Python等框架或技术语言进行开发。通过对系统的开发和测试,实现了数据汇聚、数据组织与存储、数据分析、数据提取、信息共享等功能,具备展示形式丰富多样化、分析算法自定义以及数据提取智能化等特点,验证了设计方案的可行性。地面模拟试验数据库系统满足对航天器材料与电器元件的基本性能参数数据和试验/仿真数据的大批量收录要求,提升了试验数据服务水平,对于相关领域的数据库系统设计具有一定的参考价值和借鉴意义。     

数据挖掘中关联规则的研究与应用

数据挖掘被称为数据库中的知识发现,是一个跨学科的研究领域。关联规则分析是数据挖掘中一个重要的课题,用于发现存在于数据库中的项或属性间的关联联系,这些联系是事先未知且隐藏的。关联规则的研究主要集中在生成频繁项集的挖掘算法,通过对几种主要关联规则的算法分析,利用Apriori算法研究再生资源系统中关联规则的确定,从而实现物资的二次销售。     

Automatic reintegration of previously machined materials

Processed material can become obsolete for several “business” reasons. Virtually all manufacturing operations accumulate processed materials that can not be used anymore. Current systems to integrate previously machined materials back into the manufacturing process are informal and often not economically feasible. To utilize material more effectively, the raw material selection process should include obsolete parts as well as raw stock in their scope of selection. A prototype expert system has been developed in Prolog to manage the material salvage operations. The expert system will determine whether an obsolete part can be used to make an alternative part based on a search through the part design database. The expert system is written in Prolog and uses first- order predicate logic to determine whether one part will fit inside another part. The current prototype handles rotational parts.