本钢转炉自动化二级网关系统

介绍了本钢转炉自动化二级网关系统的硬件结构、软件结构和基本功能,该系统采用TCP/IP协议和西门子工业以太网协议（ISO Ind Ethernet）,实现了二级系统与PLC系统之间不同协议数据的高速通信.     

A penetrative addictive for water infusion in coal seams

The manufacturing process, characteristics, and application results of a rod-like penetrative additive (the penetrative rod) were discussed. The components and functions of the penetrative rod were studied carefully. A large number of orthogonal combined tests were carried out and over 100 sample molds were made. Ultimately the components were decided after careful selection among these molds, mainly including hygroscopic major components and auxiliary material. The results of on-site practical application show that such an addictive can increase the water penetrative ability effectively and has a remarkable effect on preventing dust production during coal seam excavation. The penetrating radius, the infusing velocity and the dust-preventive effect were systematically studied.     

基于OPC监控系统的短消息服务网关的研究与开发

在分析短消息服务和监控系统集成方法的基础上，提出了一种基于OPC监控系统的短消息网关。该网关通过短消息读写OPC服务器数据，并采用基于Agent的中间件技术进行SOAP和SMS协议之间的转换，实现了工业现场的远程移动监控，为控制网络和移动网络的一体化应用建立了统一平台。     

A User-Aware Prefetching Mechanism for Video Streaming

The randomly and unpredictable user behaviors during a multimedia presentation may cause the long retrieval latency in the client–server connection. To accommodate the above problem, we propose a prefetching scheme that using the association rules from the data mining technique. The data mining technique can provide some priority information such as the support, confidence, and association rules which can be utilized for prefetching continuous media. Thus, using the data mining technique, the proposed prefetching policy can predict user behaviors and evaluate segments that may be accessed in near future. The proposed prefetching scheme was implemented and tested on synthetic data to estimate its effectiveness. Performance experiments show that the proposed prefetching scheme is effective in improving the latency reduction, even for small cache sizes.     

基于XML实现应用网关可配置服务的方法

可配置能力是系统灵活性的重要体现。基于XML语言建立系统的可配置能力是现今比较流行的做法。应用网关是一种特别强调可配置能力的系统。文章结合应用网关模型，使用DTD数据字典的形式对系统配置的几个方面的要点进行了叙述。     

蜗壳与压力钢管焊缝应力分析

根据观测数据和有限元计算结果 ,对蜗壳与压力钢管焊缝在连续运行发电阶段的变形与应力进行了分析 .结果显示 ,在正常运行发电阶段 ,压力钢管、蜗壳、焊缝均满足强度条件 .并根据观测结果和计算结果 ,给出了结论与建议     

自动扣压联网法及其应用

主要论述自动扣压联网法的原理及其铺联网机构与液压支架配套使用来实现厚煤层分层开采金属网假顶的自动铺设和联结。     

VoIP认证与计费的设计与实现

基于RADIUS的VoIP认证系统，采用分散受理、集中管理的接入认证管理体系，数据集中存放在认证中心(RADIUS服务器)，用户身份认证由PC向网守发起，网守通过RADIUS协议向认证中心的认证服务器发起认证请求。这样，可以保证用户安全地使用网络资源，以确保用户身份的合法性。同时其落地话单经过处理，可进行计费及其它帐务处理。文中论述了RADIUS对VoIP的支持，提出了一个Gatekeeper与RADIUS结合的整体解决方案。     

"3-Section" Technology of Full-Dimension Mining in Flat Thick-Seam

To raise coal recovery ratio and solve the key problem of full-dimension mining, a new "3-section" technology of full-dimension mining is put forward in flat thick-seam according to the theory and mining practice. This technology is proved to be rational and feasible in rodway layout system of stagger arrangement.     

客车蒙皮组焊件焊接工艺的改进

针对西安某汽车厂客车蒙皮组焊件焊接采用CO2气体保护焊生产率低、焊接变形大、表面处理难度大、质量难以保证的问题，本文作者对其进行了工艺改进，通过采用全自动缝焊焊接工艺及选择合理的工艺规范参数，在保证结构和强度的前提下，使蒙皮组焊件焊接表面质量大幅提高，劳动强度大幅下降，生产率提高数倍。