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1.
过程仿具培训操作工操作成绩自动评定系统   总被引:1,自引:0,他引:1  
开发了过程仿真培训操作工程作成绩自动评定系统。该系统主要有:操作工操作的自动跟踪,操作成绩的评定和评分标准三部分构成。较详细地说明了该系统的实现方法。本系统的特点是成绩 分类培训实际,综合全面;程序与评分标准相分离,便于实现软件的通用化,易扩充和易维护等。  相似文献   

2.
根据仿真系统的理论和高炉操作的特点,开发了一个模拟高炉值班室操作的仿真系统,建立了数学统计模型。该系统采用菜单操作方式,人—机界面方便灵活,系统结构通用性强。现场数据的实际验证表明,该系统在培训用户和调试专家系统方面,取得了较满意的效果。  相似文献   

3.
从高炉操作培训的功能分析入手,结合计算机的高速计算,演示和控制功能,提出了高炉操作仿真培训系统的总体框架和硬件配置,并给出了实现该系统的具体方法。  相似文献   

4.
设计了一类结构简单、功能完善的新型智能仿真培训系统,用于间歇反应过程的操作培训。该系统引入专家系统技术,由培训指导专家系统安排,指导学员的练习,在培训中可脱离指导教师的指导,实现了操作培训的知识化,使操作培训大大简化,方便。  相似文献   

5.
针对精馏塔操作过程,建立了由化工机理出发的动态模型,并以IBM-PC机为硬件核心,组成仿真系统,利用此系统可对精馏塔进行操作培训、实验及研究。  相似文献   

6.
合成氨工艺认识实习的CAI系统   总被引:2,自引:0,他引:2  
计算机辅助教学是多媒体技术的一个重要分支,它是将文字,声音、动像、动画等多种媒体集成到计算机中,帮助教师进行教学的一种方式,该文描述CAI在化工原理课程认识实习中的应用,介绍了合成氨工艺仿真系统的设计原理、特点及应用。系统系统不仅可用于教学。使学生对化工过程有一个形象直观的认识,而且可以使学生通过计算机模拟化工生产过程的操作,使其有一个身临其境的感觉。该系统也适合培训工厂企业的操作技工。  相似文献   

7.
通用型炭片调压器自动调测系统设计   总被引:1,自引:1,他引:1       下载免费PDF全文
利用虚拟仪器技术,设计了通用型炭片调压器自动调测系统。给出了调测系统的结构框图和仿真结果,对调测系统的软硬件进行了设计,确定了工作点的调整算法,对系统误差进行了分析解决。实际应用表明:该系统具有通用性强、易于操作、调测迅速准确、精度高等特点。  相似文献   

8.
从总体上介绍了车床数控系统AUTO-B的系统结构,基本功能及其软硬件设计思想。在AUTO-B系统中,我们采用CRT显示,克服了采用LED显示所带来的界面不友好,操作不直观,难于为广大工人掌握等特点。在功能上,除了实现普通的编程操作外,还引入了示数系统,向智能型数据控系统迈进了一步。  相似文献   

9.
分析了电网规划工作的特点、要求,认为利用电网仿真系统性能良好的图形数据一体化环境、事件操作与事件处理、动态稳定计算等成果进行电网规划是可行的。设计、开发了电网仿真系统中的电网规划软件。将电网规划功能加入电网仿真系统满足了用户进行电网规划的要求,且拓宽了电网仿真系统的应用领域,具有现实意义和实用价值。  相似文献   

10.
从总体上介绍了车床数控系统AUTO-B的系统结构,基本功能及其软硬件设计思想.在AUTO-B系统中,我们采用CRT显示,克服了采用LED显示所带来的界面不友好,操作不直观,难于为广大工人掌握等缺点.在功能上,除了实现普通的编程操作外,还引入了示数系统,向智能型数控系统迈进了一步.  相似文献   

11.
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.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
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.  相似文献   

14.
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.  相似文献   

15.
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。  相似文献   

16.
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.  相似文献   

17.
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-  相似文献   

18.
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-  相似文献   

19.
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  相似文献   

20.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

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