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二维时空    
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  two-dimensional space-time
    Two-dimensional Space-time Analysis Model for the Settlement of CFRD in Construction Period
    面板堆石坝施工期沉降二维时空分析模型
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    Considering the factors influencing the rockfill settlement,the mathematical expressions of fill-up component and time effect component are derived. The general expression of the two-dimensional space-time analysis model for the settlement of CFRD in the construction period is presented,and the rationality of the model is validated based on observed data.
    考虑堆石体沉降的影响因素,推导了填筑分量和时效分量的数学表达式,给出了面板堆石坝 施工期沉降二维时空分析模型的一般表达式,并利用沉降实测资料验证了该模型的合理性。
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  two-dimensional space-time
Anomaly-free quantization of a string in two-dimensional space-time
      
An anomaly-free quantum theory of a relativistic string is constructed in two-dimensional space-time.
      
Common vacuum conservation amplitude in the theory of the radiation of mirrors in two-dimensional space-time and of charges in f
      
One of these relations leads to the coincidence of the self-action changes and vacuum-vacuum amplitudes for an accelerated mirror in two-dimensional space-time and a charge in four-dimensional space-time.
      
Some field equations, suggested by the Thirring and Federbush models in quantum field theory are studied in a two-dimensional space-time.
      
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The physical model of large scale tilting soil tank in lab is used to investigate the contaminant of non sorption transport in saturated porous media.Through tests of soil tank,enough data are obtained.A nonlinear weighted least square algorithm is used to estimate unknown model parameters by minimizing deviations between concentrations from experiments and those predicted by the analytic solution.Simulation of transport properties are found with the minimum errors for model parameters.By using this technique...

The physical model of large scale tilting soil tank in lab is used to investigate the contaminant of non sorption transport in saturated porous media.Through tests of soil tank,enough data are obtained.A nonlinear weighted least square algorithm is used to estimate unknown model parameters by minimizing deviations between concentrations from experiments and those predicted by the analytic solution.Simulation of transport properties are found with the minimum errors for model parameters.By using this technique the value of longitudinal and vertical dispersivity coefficients are obtained.

本文借助于特大型变坡土壤槽物理模型装置,试验研究了污染物在饱和土壤中水平运移规律,得到了连续输污条件下,饱和土壤中污染物浓度二维时空变化的过程.在分析实测资料的基础上,运用数学模型解及最优化技术率定模型参数,得到了具有重要应用价值的纵向、垂向弥散系数

Considering the factors influencing the rockfill settlement,the mathematical expressions of fill-up component and time effect component are derived.The general expression of the two-dimensional space-time analysis model for the settlement of CFRD in the construction period is presented,and the rationality of the model is validated based on observed data.

考虑堆石体沉降的影响因素,推导了填筑分量和时效分量的数学表达式,给出了面板堆石坝 施工期沉降二维时空分析模型的一般表达式,并利用沉降实测资料验证了该模型的合理性。

 
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