DCS在30m~3聚合釜控制中的应用

介绍了电化厂聚合技改后的聚合釜温度控制方案,CS3000DCS在控制中的应用。实现了从进料、升温、恒温、直至反应结束的全过程自动控制,在操作站实现了动态工程流程图、控制分组、历史趋势等显示功能,可变参数在权限范围内的下载及报表打印等功能。     

Error Concealment Based on Semantic Prioritization with Hardware‐Based Face Tracking

With video compression standards such as MPEG‐4, a transmission error happens in a video‐packet basis, rather than in a macroblock basis. In this context, we propose a semantic error prioritization method that determines the size of a video packet based on the importance of its contents. A video packet length is made to be short for an important area such as a facial area in order to reduce the possibility of error accumulation. To facilitate the semantic error prioritization, an efficient hardware algorithm for face tracking is proposed. The increase of hardware complexity is minimal because a motion estimation engine is efficiently re‐used for face tracking. Experimental results demonstrate that the facial area is well protected with the proposed scheme.     

NETWORK6000在脱离子水处理过程中的应用

脱离子水处理单元是一种顺序控制单元，对时序控制有严格的要求。文中介绍了一种新型的控制系统NETWORK6000在PTA装置脱离子水单元中的应用状况，为中小规模的装置应用提供了一种较典型的思路和借鉴，最后对系统的应用状况进行了评价。     

冷库多台冷风机电热融霜时间与温度双重自动控制方案

从节能和可靠运行的角度提出冷库多台冷风机电热融霜时间与温度双重自动控制方法.     

信息系统工程监理中的进度控制

该文从信息系统工程监理的概念与必要性出发,重点论述了监理的一个关键性领域———进度监理,即如何从监理的角度对进度实行控制,包括评价进度计划的合理性、进度进程与变化的跟踪、协助并监督进度的调整等,从而保证功能按计划优质完成。     

基于参考模型的自适应话音处理

本文讨论了一种带有参考通道的自适应话音消噪滤波器原理，该滤波器采用最小均方差(心幅)算法。将此滤波器应用于复杂噪音背景的话音信号提取，能很好地抑制背景噪声，从而获得清晰的话音信号。     

低温液体冷却循环器的研究与开发

根据低温生物、生化实验研究和产品小试时应用低温条件的特点，提出机械制冷的冷却循环器，讨论了工作原理和制冷量计算，对其制冷系统和温度控制进行介绍。     

Concast连铸机自控系统简介

天津钢铁有限公司引进了瑞士Concast公司6机6流方、圆坯连铸机及相关技术，文章简要介绍了Concast连铸机的自动控制系统的特点和功能。     

Quality, Environmental, and Health and Safety Management Systems for Construction Engineering

The philosophy behind quality, environmental, and safety (QES) management systems is a concept that has been accepted by various contractors. Furthermore, a process has been developed insuring that the output produced conforms to customer satisfaction without violating any environmental, health, and safety rules and regulations. An effective QES program not only assures a quality product but also reduces costs, and enhances productivity. It is a top down process, i.e., top management together with line management and other employees develop the program and motivate all personnel to accept the process. Important functions to take under consideration are (1) explain and clarify the quality, environmental, and safety performance expected; (2) involve employees in decision-making and problem solving; (3) describe the consequences of poor quality and unsafe/unhealthy work conditions; (4) establish QES goals and provide feedback on performance; (5) provide a self-monitoring system; and (6) recognize and reinforce good performance and develop a reward system. This paper presents a discussion of the development of a portion of a QES management system which has been employed by a medium to large size construction company. In particular, Items 1–4, listed above, are described in detail.     

断裂带中层天然气成藏特征--以济阳坳陷东营北部断裂带为例

文章分析了东营北部断裂带中层天然气藏的气体性质、储盖组合类型、温压环境对中层气成藏的影响以及断裂活动对中层气成藏的制约；剖析了三角洲沉积体系在中层天然气成藏中的纽带作用，建立了断裂带中层天然气运聚模式、成藏模式；总结出了中层天然气藏横向分布特征及纵向成藏序列，对于富油盆地断裂带天然气勘探具有很好的指导意义。