一类高炉出铁水的冲渣自动跟踪系统

针对一类高炉出铁水冲渣系统难以实现冲水量自动跟踪炼铁废料量的闭环控制问题，提出了采用基于仿人智能的自适应控制策略，讨论了控制结构模式、任务与参数自适应控制算法。系统投运效果表明：该算法在类似的不确定性自动跟踪系统中应用的有效性、鲁棒性好，跟踪精度高。     

螺旋桨空化流场调控研究

为改善水力机械的空化现象，基于流动控制结构布置原则和波茨坦水池测试(PPTC)螺旋桨空化流场特性，在保障整体性能的前提下，分别在叶尖与叶根位置设计控制结构进行局部调控。对比分析4种改进螺旋桨与原始螺旋桨的空化流场特性，研究控制结构对螺旋桨空化流场调控的作用机理。结果表明：添加控制结构牺牲了较小的效率，显著减小了空泡区域体积，改善了螺旋桨综合性能；重载工况下，PPTC-t2螺旋桨的综合性能最好，效率损失了0.134%,空泡区域体积减小了24.6%;设计工况下，PPTC-t1螺旋桨的综合性能最好，效率损失了0.284%,空泡区域体积减小了19.5%;控制结构附近流速降低，诱发了局部高压，延缓了空化发生，实现了空化流场的局部调控。研究为改善水力机械的空化问题提供了有效途径。     

专家系统开发工具MESDT的研究与设计

ＭＥＳＤＴ是面向多领域、具有多种知识表示、采取黑板控制结构、拥有多种推理机制的新一代专家系统开发工具。借助本工具提供的知识表示形式、推理机制、控制机制等，可以容易地生成实用的专家系统。本文论述了它的设计思想和实现过程。     

基于知识的工业窑炉控制策略

提出了一种应用于工业窑炉控制的基于知识的实时控制方法,并结合水泥生产机立窑锻烧过程的控制,阐述了它在工业窑炉控制中的应用,对该方法中知识的分层组织和控制结构进行了较深入的分析。     

一种自动排除偏差的在线式专家知识获取方法

针对操作指导专家系统中知识获取方面所存在的问题，提出了一种排除示例中的偏差，强化正例，自动获取知识的方法，实现了专家操作在线自动获取知识，有效地解决了专家知识的自提高问题。     

基于S7—200的PID算法应用

基于PLC在PID闭环控制方面的设计和应用,给出PID控制的数学模型及其控制结构.采用PID控制系统的进水和出水,实现自动调节,保证系统水量稳定,可以起到精确控制的作用.     

基础隔震加AMD混合控制结构的抗震分析

考虑基底隔震、首层施控的混合控制结构的抗震性能，采用Ｙ．Ｋ．Ｗｅｎ建议的滞回模型描述隔震装置的弹塑性特性，利用等效线性化方法形式上把结构振动方程简化为线性扩展状态方程。对平稳和非平稳过滤高斯白噪声激励进行了随机分析，并针对一个六层框架结构进行了数值计算，详尽地分析了基底隔震装置和调频质量阻尼器的参数对混合控制结构反应的影响，在此基础上对这种混合控制结构的抗震性能作出了评价。     

新型车载底盘自动集中润滑系统的研制

车载底盘自动集中润滑技术解决了车辆底盘由手动润滑所带来的一系列问题,实现了底盘封闭的自动精确润滑,有效地延长了底盘的寿命,并减少底盘的维护成本．文中介绍了一种高级大型客车使用的新型车载底盘自动集中润滑系统,该系统采用高效润滑泵、嵌入式控制结构及车内CAN总线扩展技术,不仅提高了系统的自动化程度,也提高了其可靠性,     

力觉临场感遥控作业系统控制结构的透明性研究

临场感技术是虚拟现实中的一项重要内容，本文针对力觉临场感遥控作业系统中几种典型控制结构的透明性，进行了理论分析和实验研究，结果表明力反馈－位置型控制结构具有最佳的透明性。     

汽车ISS控制技术节油研究与应用

ISS(Idle-Start-Stop)即怠速自动起动/停机控制功能,遇到红灯时,自动停机,绿灯亮,驾驶员离合器触发起动。本文从ISS控制结构及控制策略上进行研究,并通过理论节油计算和实际节油对比,表明ISS怠速自动停机/起动功能控制简单、易于实现,并且具有良好的节油效果。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that