助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   灰色预报 的翻译结果: 查询用时:0.56秒
图标索引 在分类学科中查询
所有学科
水利水电工程
地质学
建筑科学与工程
更多类别查询

图标索引 历史查询
 

灰色预报
相关语句
  grey forecasting
     Combined with nonlinear regression analysis,the stability of surrounding rock is analyzed by using the method of grey system theory. The essential condition of stability of surrounding rock and the ways of improving model accuracy are presented. The grey forecasting for unstable surrounding rock is made.
     结合非线性回归分析,用灰色系统理论分析围岩稳定性,提出了围岩失稳的必要条件和几种提高模型精度的方法,并对围岩的失稳进行灰色预报.初步检验结果表明该方法具有一定的精度和实用价值.
短句来源
  “灰色预报”译为未确定词的双语例句
     The grey prediction model GM(1,1) and Verhulst model are established to forecast the subsidence and stabilization tendency of a building. It is pointed out that trend of subsidence depends on the sign of the parameters in the models.
     对建筑物进行系统沉降观测 ,应用灰色理论建立灰色预报 GM( 1 ,1 )模型和 Verhulst模型对建筑物沉降和稳定趋势进行预测预报 ,指出建筑物形变发展是稳定趋势还是失稳趋势取决于灰色GM( 1 ,1 )模型参数 a和变形速率 V(1)(t) 符号的变化 ,当 a<0时 ,V(1)(t) 恒为正 ,变形是正增长的 ,意味着可能有失稳的时刻 ;
短句来源
     GREY PREDICTION PRECISION AND MODIFICATION OF DYNAMIC MEASUREMENT ERROR
     动态测试误差灰色预报精度及修正
短句来源
     This paper discusses the establishment of an earth subsidence gray model (1,1) to forecast the recent earth subsidence in Suzhou. In so doing, the gray theory and relevant data collected in time order with regards to Suzhou earth subsidence are used.
     应用灰色系统理论,针对苏州市发生地面沉降的一组时间序列观测数据,建立了灰色预报GM(1,1)模型,预测了苏州市近期地面沉降量。
短句来源
     Prediction Analysis of Time-depended Reliability Based on Gray Theory
     基于灰色预报的结构时变可靠度分析
短句来源
     Grey Prediction of Corrosion State of Steel Oil Tank
     钢制油罐腐蚀状况的灰色预报
短句来源
更多       
  相似匹配句对
     Grey Forecasting of Surrounding Rock Failure
     围岩失稳的灰色预报
短句来源
     A Grey-Markov Forecasting Model of the Generating Unit Operation Reliability
     发电机组可靠性灰色马尔科夫预报模型
短句来源
     Colorful Shades of Gray
     绚烂的灰色
短句来源
     Forecasting volcanic eruptions
     预报火山喷发
短句来源
     On grey function
     灰色函数
短句来源
查询“灰色预报”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  grey forecasting
The grey forecasting model has been successfully applied to many fields.
      
A new grey forecasting model based on BP neural network and Markov chain
      
A new grey forecasting model based on BP neural network and Markov chain was proposed.
      
In order to combine the grey forecasting model with neural network, an important theorem that the grey differential equation is equivalent to the time response model, was proved by analyzing the features of grey forecasting model(GM(1,1)).
      
In order to reduce stochastic phenomenon in GNNM(1,1), the state transition probability between two states was defined and the Markov transition matrix was established by building the residual sequences between grey forecasting and actual value.
      
更多          


ecause the complex of hydrological process and unperfected information of influence factor,hy-drologic system in the basin is regarded as the Gray System with gray element and gray information. The non-equation gray forecast method is primarily applied in longterm hydrologic forecasting,The method seperatesitself from the traditional forecasting mode which takes equation as the center. The different effects of fore-cast factors on forecast estimation are considered,but the concrete form relative functions for...

ecause the complex of hydrological process and unperfected information of influence factor,hy-drologic system in the basin is regarded as the Gray System with gray element and gray information. The non-equation gray forecast method is primarily applied in longterm hydrologic forecasting,The method seperatesitself from the traditional forecasting mode which takes equation as the center. The different effects of fore-cast factors on forecast estimation are considered,but the concrete form relative functions for forecast estima-tion and forecast factors are not stressed strongly.It is a new concept for longterm hydrologic forecasting.Theexamples are set in the paper.The good results are achieved.

基于水文过程的复杂性和影响因子信息收集不完善这一基本事实,本文将流域水文系统视为含有灰元和灰信息的灰色系统,并初步实践了非方程灰色预报方法在长期水文预报中的应用。方法在一定意义上脱离了传统的以方程为中心的预报模式,它既考虑预报因子对预报量的不同影响程度,又不过分强调预报量与预报因子的具体相关函数形式,为长期水文预报提供了一种新思路。文中列出了实例,效果令人满意。

The prediction research of petroleum reservoir development targets are closely related with the economical effect of future petroleum research reservoir operation and the fuse of technology application. In order to make the long-term production schedule and annual plan reasonably, on the basis of science to develop the field to full potential extent,it is crucial to study the production prediction method for field blocks, and this could result in optimization production scheme.This paper takes of the advantage...

The prediction research of petroleum reservoir development targets are closely related with the economical effect of future petroleum research reservoir operation and the fuse of technology application. In order to make the long-term production schedule and annual plan reasonably, on the basis of science to develop the field to full potential extent,it is crucial to study the production prediction method for field blocks, and this could result in optimization production scheme.This paper takes of the advantage of current achievements in establishing of differential equation time continuous model of dynamic system, in system engineering field,and presents a new method of target prediction in petroleum reservoir development. This model is named CDM (n,h) model, and CDM (n,h) model can be used not only for prediction, but also for dynamic system analysis and control. Applying this model to predict practical production showed satisfied precision. Compared with GM(n,h)model of Grey System Theory through many practical data from production process,CDM, (n,h) model has obvious advantages.

在进行差分方程理论和现代控制理论研究基础上,提出了“中心差分建模理论和方法”。该方法具有模型级自适应与参数时变性的特点,可适用于油区中,长期规划时开发指标的预测。与灰色预报模型进行对比研究,由于灰色预报模型只考虑了因变量与自变量的关系,仅仅建立了一个时间序列的函数,它要求原始时序规律性较强,这就对信息量有所限制,经矿场实际数据验证,其预报精度较中心差分预测模型要差,预报的时间要短。中心差分建模的模型即考虑了因变量与自变量的关系,又考虑了自变量与其本身过去的关系,是用原始数据直接建模,它既可进行时间序列的预报,又可进行动态系统的分析和控制。

Combined with nonlinear regression analysis,the stability of surrounding rock is analyzed by using the method of grey system theory.The essential condition of stability of surrounding rock and the ways of improving model accuracy are presented.The grey forecasting for unstable surrounding rock is made.The verified result shows that this method has satisfactory accuracy and practical value.

结合非线性回归分析,用灰色系统理论分析围岩稳定性,提出了围岩失稳的必要条件和几种提高模型精度的方法,并对围岩的失稳进行灰色预报.初步检验结果表明该方法具有一定的精度和实用价值.

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关灰色预报的内容
在知识搜索中查有关灰色预报的内容
在数字搜索中查有关灰色预报的内容
在概念知识元中查有关灰色预报的内容
在学术趋势中查有关灰色预报的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社