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1.
层次分析法(AHP)在教学实验室评估标准中的应用   总被引:2,自引:0,他引:2  
分析了目前高等学校实验室评估方法的欠缺,给出了运用AHP方法进行实验室评估的指标体系,论述了这种方法在实验室评估中的优越性。  相似文献   

2.
阐述了基于马尔可夫链和模糊综合评判的教学质量评估方法,提出了一种教学评估模型,并给出了算法,该算法对教学质量进行自动、合理、有效的评判,时计算机教研组的教学评估实例收到了良好的效果。  相似文献   

3.
介绍了一种用于钻井模拟仿真系统中井涌的计算机动态模型,该模型已在钻井模拟仿真系统中得到应用,运算效率高,实时性强,能满足仿真训练的要求.讨论了该模型的数值求解过程,给出了一口实例井的仿真计算结果.  相似文献   

4.
层次分析法(AHP)在教学实验室评估标准中的应用   总被引:4,自引:0,他引:4  
分析了目前高等学校实验室评估方法的欠缺 ,给出了运用 AHP方法进行实验室评估的指标体系 ,论述了这种方法在实验室评估中的优越性 .  相似文献   

5.
针对目标识别效果评估,利用数理统计知识确立了评估指标及测度方法。随后,使用模糊综合评判建立了一种开放的评估模型,该模型可以给出客观的、定量化的评估结果。最后,结合实测数据完成了仿真。  相似文献   

6.
引入一种反映决策者心态的指标-区间数,用区间数表示因素的权重及其评估矩阵,并给出了因素的阈值区间数.定义了一滤波器,并结合阈值区间数有效地剔除了偏差较大的评估区间数.最后给出了区间数的二次综合评估模型,并定义了新的区间数排序方法.实例分析证明该模型能有效地克服由于决策者的模糊性而带来数值不确定性.  相似文献   

7.
在计算机图形学中,有限元等科学计算与分析方法得到了越来越广泛的应用.而有限元单元网格质量的好坏将直接影响有限元计算过程的收敛性以及有限元解的误差.通过对计算机图形学中常用的三个表面网格模型进行分析,利用模糊数学的方法,给出了一种三角形网格质量综合度量方法.利用该方法得到的评价指标可以综合、快速地评价一个有限元网格模型的质量.  相似文献   

8.
将神经网络理论应用于模糊综合评价,首先引入因素空间的概念,在因素空间中给出了一种基于三层神经元的多用量化模糊综合评价方法,并利用LMS算法及矩方法研究了该模型权重及学习步长的确定方法,实现了权重及学习步长的网络学习,最终实现了等级评价值的计算机输出.较好地解决了传统的综合评价方法中各指标的权数受人为因素的影响这一难点问题.  相似文献   

9.
人工情感在Agent行为选择策略中的应用   总被引:3,自引:0,他引:3  
研究了人工情感在智能系统中是否可以发挥重要作用.以一生活在虚拟环境中的agent作为研究对象,提出一种基于模糊逻辑的情感模型,并将情感的评估作用与基于CMAC神经网络的联想学习机制相结合,将情感对环境和agent自身状态的评估的变化作为再励信号,用于引导agent的行为选择策略的学习.计算机仿真研究的结果表明,运用该方法可以取得良好的效果.  相似文献   

10.
雷达系统效能的灰色综合评估   总被引:5,自引:1,他引:5       下载免费PDF全文
针对雷达系统性能指标的相对性、不可比性和灰色性,运用灰色系统理论对雷达系统效能评估问题,提出了一种基于层次-灰色关联度分析法评估效能的模型。以四种型号系列警戒雷达为例给出综合评估的分析实例,实例表明该方法较模糊综合评估更有效。  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.
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   

14.
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   

15.
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   

16.
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   

17.
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   

18.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

19.
20.
<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has  相似文献   

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