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grey system model     
相关语句
  灰色系统模型
     Discussion on prediction of hydrologic disasters by grey system model GM(1,1)
     灰色系统模型GM(1,1)进行水文灾变预测问题的讨论
短句来源
     Grey System Model Research and Quality Control System Design of Precision Internal Grinding Process
     精密内圆磨削过程的灰色系统模型研究与质量控制系统设计
短句来源
     Application of Grey System Model in Forecasting Atmospheric Environment Quality
     灰色系统模型在大气环境质量预测中的应用
短句来源
     Application of Grey System Model to Thermal Error Modeling on Machine Tools
     灰色系统模型在机床热误差建模中的应用
短句来源
     Application of Grey System Model in Throughput Forecasting of Inland River Port
     灰色系统模型在内河港口吞吐量预测中的应用
短句来源
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  灰色系统
     Discussion on prediction of hydrologic disasters by grey system model GM(1,1)
     灰色系统模型GM(1,1)进行水文灾变预测问题的讨论
短句来源
     THE APPLICATION OF THE GREY SYSTEM MODEL (1,1) TO PREDICATION ABOUT URBAN GROUNDWATER HARDNESS
     灰色系统GM(1,1)模型在城市地下水总硬度预测中的应用
短句来源
     By using the improved grey system model GM(1,1),the maximum peak valley difference of ECPN in 2005 is forcasted.
     对灰色预测模型 G M (1,1)进行了修正,并用灰色系统法预测了华东电网 2005 年的最大峰谷差。
短句来源
     Grey System Model Research and Quality Control System Design of Precision Internal Grinding Process
     精密内圆磨削过程的灰色系统模型研究与质量控制系统设计
短句来源
     The analysis approaches of grey system model GM(1, 1) and GM(1, 2) are used to predict generation of industrial hazardous wastes in China.
     采用灰色系统GM(1,1)和GM(1,2)模型,对我国工业危险废物产生量的变化趋势进行了预测研究。
短句来源
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  灰色模型
     This paper discussed the application of grey system model to forecasting the number of container transportation.
     文章主要探讨了灰色模型在集装箱运量预测中的应用。
短句来源
     This paper used the statistic data(1996~2005)of the cultivated landarea in Beijing to forecast the trend about the changes of the cultivated land area from the year 2006~2010 by the method of Grey System Model GM(1,1).
     基于1996~2005年北京市的耕地面积数据,利用灰色模型预测方法建立GM(1,1)模型,对北京市2006~2010年的耕地面积变化趋势进行预测。
短句来源
     However, this method is unperfect, when the load increases according to the curve with shape of alphabet S or the increment of load is in the saturation stage, the load forecasting error by grey system model will be bigger and the forecasting results cannot be accepted in practical application.
     但是,当负荷按照“S”型曲线增长或增长处于饱和阶段时,采用灰色模型进行负荷预测的误差较大,预测精度不能满足实际要求。
短句来源
     However, it is imperfect when the throughput increases in the curve with S type or the increment of throughput is in the saturation stage. In this case, the throughput forecasting error of grey system model will become larger and the result is unaccepted.
     但是,当港口吞吐量按照“S”型曲线增长或增长处于饱和阶段时,采用灰色模型进行吞吐量预测的误差较大,预测精度不能满足实际要求。
短句来源
     Present an image compression method based on grey system model.
     针对交通实时路况图像提出了一种基于灰色模型的图像编码方法。
短句来源
  灰色系统理论
     This paper discusses the application of grey system model in the fcrecast of the time of equipment maintenance.
     主要探讨了灰色系统理论在设备维修时间预测中的应用 .
短句来源
     In this paper, the Grey System Model G. M(1.1) was used to establish a pre- dicting model of the concentration of air particulates. Based on the monitoring statistics of the concentration of air particulates of Nanchang City over 1983-1987, we obtained:(?)
     本文试用灰色系统理论GM(1·1)模型,以南昌市1983~1987年的大气颗粒物浓度统计资料为例,求得南昌市大气颗粒物浓度灰色预测模型为: (?)
短句来源
     In the paper, we describe the Grey System Model GM (1, N+1) and a
     本文描述了灰色系统理论的GM(1,N+1)模型,对其主要的模型GM(1,1)进行了程序设计。 作为例子,对文献(3),(4),(5)的结果进行了检验,并建立了我国石油产量的预测模型
短句来源
     The advancing ammonts of TSP, SO_2,and NO_X in atmosphere between 1989 to 2000 were forecasted by GREY SYSTEM MODEL (GM(1,1)) basted on sampling and monitoring data.
     本文根据多年的大气监测数据,采用灰色系统理论 GM(1,1)模型预测了1989—2000年乌鲁木齐市大气颗粒物,二氧化硫、氮氧化物浓度的变化趋势。
短句来源
     Methods The degree of grey incidence (DGI) between the concentrations of TSP or SO 2 and the mortality of lung cancer were assessed through a grey system model.
     方法 利用灰色系统理论中的灰色关联度模型 ,根据最大关联度值测算出总体的潜伏期。
短句来源
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      grey system model
    The geochemical primary halo model and the Grey system model of F8 fault belt are established.
          


    According to the principles of ecolomics, taking Guyuan Ranch of Hebei province as a study site, the method for realizing profitable ecolomic recycling of the Bashang region has been investigated through modeling of systems engineering. The system dynamic model was applied as the main model which expres -sed the general feedback relations of the whole system structure. Monte Carlo method was used to simulate the impact of erosion on soil fertility. A comprehensive integration of qualitative and quantitative...

    According to the principles of ecolomics, taking Guyuan Ranch of Hebei province as a study site, the method for realizing profitable ecolomic recycling of the Bashang region has been investigated through modeling of systems engineering. The system dynamic model was applied as the main model which expres -sed the general feedback relations of the whole system structure. Monte Carlo method was used to simulate the impact of erosion on soil fertility. A comprehensive integration of qualitative and quantitative analysis, coefficient simulation, and grey system model was used for prediction. An "Ecolomic Laboratory" has been established to reflect the trand of ecolomic development of that region and its regularity of variation. Several programs have been formulated based on the practical experiences and qualitative analysis. A comprehensive evalution was carried out according to the results of computer emulation to seek for strategy and measures of continual development and mutual promotion of agriculture and animal production consistent with natural environmental conditions.

    本文依据生态经济学原理,以河北省沽源牧场为例,用系统工程的模型方法探讨实现坝上生态经济系统良性循环的途径。作者采用系统动态模型作为主干模型,表现整个系统的结构和主要反馈关系,用蒙特卡罗法模拟风蚀对土地肥力的影响,综合运用定性定量技术、系数模拟、灰色系统模型等方法进行预测,借助电子计算机建立一个能够反映坝上生态经济系统发展势态和变化规律的“生态经济实验室”;并以实际工作经验和定性分析为基础,制订若干方案,根据计算机仿真结果进行综合评判,寻求农牧业生产与自然环境相互促进,持续发展的策略和措施。

    By the mathematical analysis of input discharge process of Longyangxia Reservoir, Long-term runoff forecasting model is established in this Paper by the combination of Grey System Model GM(1, 1)and AR(P), which is a time series analysis model. It has been proved that the model is both efficient and accurate, and can be used as a forecaotins model for the reservoir.

    本文通过对龙羊峡水库入流量过程的数学分析,建立了灰色系统GM(1,1)型与时间序列模型AR(P)相叠合的长期径流预报模型。

    The debris flow dissaster can be regarded as an integral and complicated grey system affected by both the endogenic and exogenic forces simultaneously. Using the grey systematic theory, the author makes calculations of the relational coefficient, grade and seguence concerning the endogenic and exogenic forces which control the formation of the modern falling-rain mud-rock flows in the northern piedmont of the Qinling Mountains. It is suggested that the exogenic force factor-the precipitation...

    The debris flow dissaster can be regarded as an integral and complicated grey system affected by both the endogenic and exogenic forces simultaneously. Using the grey systematic theory, the author makes calculations of the relational coefficient, grade and seguence concerning the endogenic and exogenic forces which control the formation of the modern falling-rain mud-rock flows in the northern piedmont of the Qinling Mountains. It is suggested that the exogenic force factor-the precipitation intensity is mainly resp-onsible for the formation of the dissasters and the endogenic force factor-the seismic activity is the secondary one. Based on above, the several grey system models ( called as GM 1, 1 ) for the long-range period, the shors-range period and the near future forecasts are respectively established. The mian models are as folows.

    本文应用灰色系统理论,在对控制泥石流形成的内、外营力要素灰色关联度进行分析的基础上,分别建立了秦岭北麓现代泥石流灾害活动周期的长期、短期及近期灰色动态时间序列预测模型(GM),并进行了灰色灾变预测。结果表明,影响本区泥石流活动的主要因素是雨量强度,其次为地震活动性。并预测出本世纪后半叶泥石流灾害出现的年份为:1962,1966,1982,1988,1994~1995,前四次已与泥石流实际活动年份相符。近期泥石流活动期的预测,对泥石流灾害的预防有实用意义。

     
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