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Concrete Crack; Neural Network; Gray Theory; Relational degree Analysis; Crake width forecast. 01混凝土裂缝;神经网络;灰色理论;知识表示模式;关联度分析;裂缝宽度预测
The paper makes a probe into the fine evaluation of reservoir sensitivity with gray theory. 利用灰色理论对储层敏感性的精细评价进行了初步探索。
Finally，point out the quotient space theory forecast function based on gray theory and its methods.This is a new practice of information forecast. 最后结合灰色理论的方法论建立了商空间应用领域的预测方程，是信息预测的新尝试。
ZHENG Nan-xiang,WU Chuan-hai.Mechanics Performance for Lime Fly-ash Broken Stone Mixture by Gray Theory[J].Journal of Chang'an University:Natural Science Edition,2004,24(5):20-23. [4]郑南翔;吴传海.;二灰碎石力学性能影响因素的灰色理论分析[J]
Multinomial forecast model,ass embled forecast model and GM(1.1)forecast model of measurement rate is proposed according to the basic principle of gray theory. 根据灰色理论的基本原理提出措施产量的多项式预测模型、组合预测模型与GM(1.;1)预测模型。
The paper researched the key technologies of CBR method in the civil aircraft fault diagnosis: Applying the gray theory to the case similarity computation, and the difference derived method to case adaption. 再次,将该结构模型应用于民用飞机故障诊断系统,研究了民用飞机故障诊断系统中CBR关键技术的实现方法:将灰色理论应用于故障案例的相似度计算、采用了基于差异驱动的案例改写方法。
Through AIC criterion of time series analysis it judges whether the wearing and tearing state of the machine has changed, the gray theory has been utilized to predict the future state of the system. 通过时间序列分析的AIC准则判断机器的磨损状态是否发生了变化。利用灰色理论对系统的未来状态进行预测。
In this paper,the characteristics and setting up procedures of GM(1,1) dynamic prediction model in gray theory is briefly described,as well as its application in prediction of accident frequency. 简述了灰理论中GM(1,1)动态预测模型的特点及其建模过程,并将其应用于企业职工工伤事故频率预测中。
With the method of accumulation in the gray theory, a group of experiment data of crack tip opening displacement (CTOD) at different temperatures was accumulated two times, and then the data became a smooth curve. 摘要把不同温度下的裂纹张开位移(CTOD)试验数据，用灰色理论中的累加方法，进行二次累加。
The gross population of each province and city is predicted by gray theory and the population spatial distribution pattern is forecasted by employing spatial autocorrelation theory of GIS. 摘要运用灰色理论对我国各个省市未来人口总量进行预测，并应用GIS的空间自相关理论和方法对未来人口空间分布模式做出预测。
This paper analyses the complication of influence large infrastructure projects decision-making,through study on Gray Theory establishes the model of large infrastructure projects decision-making. 文章分析了影响大型基础设施决策的因素,通过对灰局势决策理论的研究建立了大型基础设施的决策模型。
Based on the analysis of the traditional methods for predicting the amount of gas gushed from mine, Model GM (1,1) of the gray theory is applied for this prediction, and is well rectified in practice. 在分析了传统的矿井瓦斯涌出量预测方法的基础上，应用灰色系统理论GM（1，1）模型，对矿井瓦斯涌出量进行预测，并在实际中得到了较好的验证。
ZHENG Nan-xiang,WU Chuan-hai.Mechanics performances for lime fly-ash broken stone mixture by gray theory[J].Journal of Chang'an University:Natural Science Edition,2004,24(5):20-23. [4]郑南翔;吴传海.;二灰碎石力学性能影响因素的灰色理论分析[J]
Conclusion: The gray theories can be used for establishing the fleetness intravenous injection pharmacokinetics model. 结论:灰色理论可用于建立静脉注射药物动力学模型。
Application of Gray Theory on Analysis for Marine Accident Causes 灰色理论在水上事故原因分析中的应用
His hair became gray when he was only forty. 他刚刚四十岁时，头发就变得灰白了。
Application of the Gray Theory in Prediction on Accident Frequency 灰理论在企业职工工伤事故频率预测中的应用
He tried in every way to verify this theory. 他想一切办法来验证这个理论。
His face turned gray as he heard the bad news. 听到这个坏消息后，他的脸变得苍白。
I entirely approve of that theory. 我完全赞成那种理论。