论吴文英词的梦幻构思

吴文英词在章法结构上具有梦幻构思的特点。具体表现在：结构上多以梦幻与现实对比，既有上下片的总体对比，又有上下片内部的错综对比；又常以“梦”统领、绾结或收束全篇。梦幻构思在梦窗词中具有一定的普遍性，是形成词独特风格的重要原因之一。这种构思，又显然是受其梦幻心态的影响。

HAPC优化控制系统在合成氨装置上的应用

本文主要是基于合成氨工艺装置,实现HAPC优化控制系统的应用。合成氨工艺是化工领域比较典型的工艺装置,但实际中有些控制回路采用传统的PID控制器及简单控制方案难以实现所要求的控制目标。基于和利时在自动化领域20多年的技术积累及工程经验开发的HOLLi AS APC Suit优化控制软件包来实现目标的优化控制,将HOLLi AS APC Suit软件包用于该装置的一些重要控制回路,对于提高控制品质,减少能源消耗、提高企业效益,有着重要的意义。

PID Controller Design Based on the Time Domain Information of Robust IMC Controller Using Maximum Sensitivity

The IMC(Internal Model Control) controller based on robust tuning can improve the robustness and dynamic performance of the system.In this paper,the robustness degree of the control system is investigated based on Maximum Sensitivity(Ms) in depth.And the analytical relationship is obtained between the robustness specification and controller parameters,which gives a clear design criterion to robust IMC controller.Moreover,a novel and simple IMC-PID(Proportional-Integral-Derivative) tuning method is proposed by converting the IMC controller to PID form in terms of the time domain rather than the frequency domain adopted in some conventional IMC-based methods.Hence,the presented IMC-PID gives a good performance with a specific robustness degree.The new IMC-PID method is compared with other classical IMC-PID rules,showing the flexibility and feasibility for a wide range of plants.

青鸾几时杳 钿车何时别——再议吴文英苏妾离去之时间

苏妾的离去,无疑是文英生活和创作的一个重要分水岭,从文英几首写作时间确定的作品看,苏妾离开文英是在淳祐二年(1242年),而非淳祐四年(1244年)。

路要自己去走

我感谢自学考试制度,没有它,恐怕也没有我的今天。今年是湖北自考20周年,借此机会我想说说在自己心中集结已久的话,并与自考生朋友们共勉:把握今天,拥抱未来——