自已动手架设UBB讨论区

安装ＡＣＴＩＶＥ ＰＥＲＬ ｌ由于 ＵＬＴＩＭＡＴＥ ＢＨＬＬＥＴＩＮＢＯＡＲＤ ＭＭ．Ｍ＊ｕ ＣＧＩ撰写的讨论区程序,因此如果要在ＷＩＮＤＯＷＳ环境下执行,就必须安装ＰＥＲＬ执行程序。所以首先请到这里下载免费的ＡＣＴＩＶＥＰＥＲＬ程序：ＨＴＴＰ：／／ＷＷＷ．ＡＣＴＩＶＥＳＴＡＴＥ．ＣＯＭ／ＤＯＷＮ－ＬＯＡＤ／ＡＣＴＩＶＥＰＥＲＬ／ＷＩＮＤＯＷＳ／５．６／ＡＣＴＩＶＥＰＥＲＬ－５．６．０．６２３－ＭＳＷＩＮ３２－Ｘ８６－ＭＵＬＴＩ—ＴＨＲＥＡＤ．ＭＳＩ。 下载完后,请直接执行ＡＣＴＩＶＥＰＥＲＬ－５．…     

分叉函数向量化计算的改进和开拓

分叉函数向量化计算的改进和开拓黄清南，张景琳，阳述林（北京应用物理与计算数字研究所，计算物理实验室）ＴＨＥＩＭＰＲＯＶＥＭＥＮＴＡＮＤＥＸＴＥＮＳＩＯＮＯＮＴＨＥＶＥＣＴＯＲＩＺＥＤＥＶＡＬＵＡＴＩＯＮＯＦＢＲＡＮＣＨＥＤＦＵＮＣＴＩＯＮＳ￥Ｈｕａｎ...     

线性连续回归模型基于Laguerre多项式逼近的Markov参数估计

线性连续回归模型基于Ｌａｇｕｅｒｒｅ多项式逼近的Ｍａｒｋｏｖ参数估计赵明旺（武汉钢铁学院自动化系）ＭＡＲＫＯＶＰＡＲＡＭＥＴＥＲＥＳＴＩＭＡＴＩＯＮＦＯＲＬＩＮＥＡＲＣＯＮＴＩＮＵＯＵＳＲＥＧＲＥＳＳＩＶＥＭＯＤＥＬＳＶＩＡＬＡＧＵＥＲＲＥ－ＰＯＬＹ...     

NI发布移动图像采集解决方案

利用新的ＮＩ ＩＭＡＱ驱动软件 ,用户可以在便携式电脑上用ＩＥＥＥ 13 94兼容性摄像头采集图像 ,并进行分析和处理。用于ＩＥＥＥ 13 94摄像头的ＮＩ ＩＭＡＱ包含一系列简单易用的ＶＩ和Ｃ函数 ,用户可运用它们快速编制ＬａｂＶＩＥＷ和ＭｅａｓｕｒｅｍｅｎｔＳｔｕｄｉｏ应用程序。该驱动软件以ＶＩｓ和Ｃ函数的形式出现 ,可以无缝地与ＩＭＡＱＶｉｓｉｏｎ集成在一起。所以用户能够将ＩＥＥＥ 13 94摄像头连接到便携式电脑并立即开始采集图像。运用ＩＭＡＱＶｉ ｓｉｏｎ和一系列方便易用的图像处理工具 ,在采集到图像的同时即可对其…     

产品新闻发布

ＮＩ公司发布面向因特网的智能化测量软件ＬａｂＶＩＥＷＴＭ6ｉ据美国德克萨斯州奥斯汀报道——— 2 0 0 0年 8月 16日开始发售面向因特网的智能化测量软件ＬａｂＶＩＥＷＴＭ6ｉ。利用此版本 ,用户可以将应用程序随同新的“ＬａｂＶＩＥＷ播放器ＴＭ(ＬａｂＶＩＥＷＰｌａｙｅｒＴＭ)”插件发送给同事、在网络上发布数据以及在整个企业中进行数据共享。ＬａｂＶＩＥＷＴＭ6ｉ具有以下优点 :1 除了新的因特网功能以外 ,ＬａｂＶＩＥＷ 6ｉ的用户还可以享受到智能化测量与控制的优越性 ,用比以前版本的Ｌａｂ ＶＩＥＷ更简明的步骤来构建他…     

EDMI系统拟实制造软件的研究开发

该文在对ＥＤＭＩ系统ＶＭ问题研究的基础上,提出了以高级语言ＣＶＩ为外壳,以作者开发的优化及无缝连接模块为纽带,将动画仿真软件ＳＩＭＡＮ／ＣＩＮＥＭＡ、ＣＡＤ软件ＰＲＯＴＥＬ和作者开发的ＳＭＴ动画仿真模块集成于一体,构成了ＥＤＭＩ系统数据驱动式的ＶＭ软件,目前已基本完成。     

天津的INTERNET在发展

天津的ＩＮＴＥＲＮＥＴ在发展从１９９５年开始ＩＮＴＫＲＮＥＴ进人天津，到目前已发展到７个节点单位，３０００个以上拨号用户。天津数据局是天津ＣＨＩＭＡＭＥＴ的主体，也是天津ＩＭＴＥＲＭＥＴ最大的ＩＳＰ《ＩＮＴＥＲＮＥＴＳＥＶＩＣＥＳＰＲＯＶＩＤＥＲ）；...     

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...     

一种新的求解线性时变系统的数值解法

一种新的求解线性时变系统的数值解法贾磊，孙优贤（山东轻工业学院机电系）（浙江大学工业控制研究所）ＡＮＥＷＮＵＭＥＲＩＣＡＬＭＥＴＨＯＤＯＦＴＨＥＬＩＮＥＡＲＴＩＭＥ－ＶＡＲＩＮＧＳＹＳＴＥＭＳＶＩＡＳＨＩＦＴＥＤＪＡＣＯＢＩＳＥＲＩＥＳ￥ＪｉａＬｅｉ...     

基于选择竞争的自适应并行模拟退火方法

基于选择竞争的自适应并行模拟退火方法彭玉青，沈雪勤（河北工业大学计算机系）ＡＰＡＲＡＬＬＥＬＡＤＡＰＴＩＶＥＳＩＭＵＬＡＴＥＤＡＮＮＥＡＬＩＮＧＡＬＧＯＲＩＴＨＭＢＡＳＥＤＯＮＳＥＬＥＣＴＩＶＥＣＯＭＰＥＴＩＴＩＯＮ￥ＰｅｎｇＹｕｑｉｎｇ；ＳｈｅｎＸ...     

Partial evaluation of Maple

Having been convinced of the potential benefits of partial evaluation, we wanted to apply these techniques to code written in Maple, our Computer Algebra System of choice. Maple is a very large language, with a number of non-standard features. When we tried to implement a partial evaluator for it, we ran into a number of difficulties for which we could find no solution in the literature. Undaunted, we persevered and ultimately implemented a working partial evaluator with which we were able to very successfully conduct our experiments, first on small codes, and now on actual routines taken from Maple’s own library. Here, we document the techniques we had to invent or adapt to achieve these results.     

多用户MIMO-OFDM的资源分配和性能分析

论文主要考虑多用户的MIMO-OFDM问题,以使得各个用户更公平有效地分配网络资源。文章首先给出MIMO-OFDM模型,然后引入反映用户满意程度的效益函数,并给出在MIMO-OFDM模型下的效益函数具体形式。其次,进行资源分配,重点考虑OFDM的各个子载波该分配给哪个用户,以及总功率该如何分配给各个子载波,从而实现系统的最优化。最后,文章给出了仿真结果,并着重对仿真结果进行了详细的性能分析。     

A framework to test interval arithmetic libraries and their IEEE 1788-2015 compliance

As developers of libraries implementing interval arithmetic, we faced the same difficulties when it comes to testing our libraries. What must be tested? How can we devise relevant test cases for unit testing? How can we ensure a high (and possibly 100%) test coverage? Before considering these questions, we briefly recall the main features of interval arithmetic and of the IEEE 1788-2015 standard for interval arithmetic. After listing the different aspects that, in our opinion, must be tested, we contribute a first step towards offering a test suite for an interval arithmetic library. First we define a format that enables the exchange of test cases, so that they can be read and tried easily. Then we offer a first set of test cases, for a selected set of mathematical functions. Next, we examine how the Julia interval arithmetic library, IntervalArithmetic.jl, actually performs to these tests. As this is an ongoing work, we list extra tests that we deem important to perform.     

Current and future research directions in network optimization

In this paper, we discuss a number of current and future research directions in network optimization. First, we categorize current research efforts as primarily methodological or primarily applied and we carefully define the boundaries of each class. In addition, we survey the present capabilities of network algorithms. Next, we delineate objectives in each class. Finally, we list several network problems for each class that should, in our opinion, be investigated and we give pertinent background information.     

移动警务系统中VPN和RADIUS用户认证技术的应用

本文将通过讨论VPN技术和RADIUS用户认证技术的组成原理,采用VPN技术和RADIUS用户认证技术相结合的方法,解决当承载网络采用CDMA1X时的公共移动通信网的安全接入问题。     

基于WEB 模式的存储统计监控系统

借助WEB数据库应用技术,也即LAMP(linux、apache、mysql、php)技术构建了具有安全认证功能的统一的存储信息管理平台,在此平台上,通过shell编程实现了用户数据按照时间节点的统计,通过php编程和apache实现了统计信息的发布、更新,通过mysql数据库技术实现了用户过往数据的管理。此外,通过SNMP协议和MIB获取存储设备状态,并通过php编程实现状态信息的发布、更新。     

An Experiment in Abstract Machine Design

In this article we present Typed Feature Structures as an extension of Prolog, and show how to come up with a compilation scheme and an abstract machine using a design methodology based on partial evaluation. First we define the transformations used by our partial evaluator. Then we present the design methodology which we will use later. Next, we clarify the notion of Typed Feature Structures that underlies our work, and formally define the unification of such structures. Based on this definition, we develop a unification procedure with explicit heap representation. By partially evaluating this procedure with respect to some example programs, we show how to come up with the machine instructions and translation schemes. Finally, we briefly address coreferences, cyclic structures and the unification of types. © 1997 by John Wiley & Sons, Ltd.     

一个嵌入式实时Linux的技术研究

根据实验室项目的需求，简要介绍了将Linux嵌入化需要考虑的几个方面的问题，对Linux的实时性能作了详细的分析，提出了提高Linux的实时性的解决方案。     

Emotion recognition from physiological signals using wireless sensors for presence technologies

In this article we describe a new approach to enhance presence technologies. First, we discuss the strong relationship between cognitive processes and emotions and how human physiology is uniquely affected when experiencing each emotion. Secondly, we introduce our prototype multimodal affective user interface. In the remainder of the paper we describe the emotion elicitation experiment we designed and conducted and the algorithms we implemented to analyse the physiological signals associated with emotions. These algorithms can then be used to recognise the affective states of users from physiological data collected via non-invasive technologies. The affective intelligent user interfaces we plan to create will adapt to user affect dynamically in the current context, thus providing enhanced social presence.     

基于VB的飞机电气设计系统网络化的研究

通过可视化编程工具VB和关系型数据管理系统SQL Server实现了飞机电气信息集成系统的设计系统网络化，提高了工作效率，本文针对在设计系统网络化中出现的一些问题，提出了解决的办法，并对部分程序细节给出了程序代码。