三峡梯级水调自动化系统建设经验

针对水调自动化系统在可靠性、高效性和稳健性方面的要求,结合三峡梯级水调自动化系统在相关问题上的做法,详细讨论了提升大型水调自动化系统的可靠性、高效性和稳健性的关键技术。主要的技术涉及:双网设计、主机集群、三层架构、数据库真实应用集群(RAC)设计、数据库备份、数据库优化、断面数据库、广播刷新等。

Enhancing selectivity in acidic CO_(2) electrolysis:Cation effects and catalyst innovation

The electrochemical reduction of CO_(2)(eCO_(2)R)under ambient conditions is crucial for reducing carbon emissions and achieving carbon neutrality.Despite progress with alkaline and neutral electrolytes,their efficiency is limited by(bi)carbonates formation.Acidic media have emerged as a solution,addressing the(bi)carbonates challenge but introducing the issue of the hydrogen evolu-tion reaction(HER),which reduces CO_(2) conversion efficiency in acidic environments.This review focuses on enhancing the selectivity of acidic CO_(2) electrolysis.It commences with an overview of the latest advancements in acidic CO_(2) electrolysis,focusing on product selectivity and electrocatalytic activity enhancements.It then delves into the critical factors shaping selectivity in acidic CO_(2) electrolysis,with a special emphasis on the influence of cations and catalyst design.Finally,the research challenges and personal perspectives of acidic CO_(2) electrolysis are suggested.

基于TMS320DM642的图像处理系统

介绍了基于TMS320DM642的图像处理系统,给出了系统的输入输出及数据处理部分的设计。利用TMS320DM642提供的专用视频端口通过EDMAs传输数据使视频的获取及输出变得非常简单,同时TMS320DM642支持的视频驱动IOM设计模式大大简化了视频输入输出驱动设计的工作量,设计简单、设计周期短,是图像处理系统较为理想的选择。