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模型及计算
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  model and calculation
    The application of matter element analysis theory to water environment quality assessment was discussed,and its principle, model and calculation procedure was introrduced. Examples assessments were compared among the matter element analysis.
    对物无分析理论在水环境质量评价中的应用进行了探讨,叙述了方法的原理、模型及计算过程。
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    By using a suppositional treatment condition, the model and calculating formula of treatment expense are testified.
    用一虚拟工况对提出的模型及计算公式进行了验证。
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  model and calculation
The actual wind speed power model and calculation method of a wind farm made up of many wind turbine units are discussed.
      
We present a theoretical model and calculation for the production of autoionizing resonances through laser assisted dielectronic recombination process in He, and its possible application to radiation amplification of UV light.
      
A comparison of calculations using this three-dimensional model with results of the Reyleigh-Plesset bubble model shows that the three-dimensional model and calculation method in this paper is practical.
      
Description of the model and calculation of double-shell liners
      
Based on the experimental results, a physical model of the process, i.e., eddy gas flow in the channel of the dead-end cavity with energy transfer from the external flow, and a mathematical model and calculation methods of the process are developed.
      
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The application of matter element analysis theory to water environment quality assessment was discussed,and its principle, model and calculation procedure was introrduced. Examples assessments were compared among the matter element analysis. the priority order of multiobjec-tive decision and osculating value methods. As a result,the method is feasible, with rational structure. simple and practical calculation, higher distinguishability and se-quencing in keeping with the actual environment quality.

对物无分析理论在水环境质量评价中的应用进行了探讨,叙述了方法的原理、模型及计算过程。运用物无分析法、多目标决策的代序法和密切值法对实例进行了评价比较.结果表明,物元分析法结构合理,计算商便适用,分辨率高,排序结果与实际环境质量状况较符合,方法是可行的。

Soil vapor extraction is an economic and safe in situ treatment technology. In this paper, the optimizing design is discussed; soil vapor extraction remediation model and soil vapor extraction fluxion model are built, and the expense of optimizing design is established. By using a suppositional treatment condition, the model and calculating formula of treatment expense are testified.

有机污染土壤通风去污技术 (SVE)是一种经济、安全的场内治理技术。SVE优化设计包括建立污染土壤通风去污模型和抽排去污流场模型 ,并以此为基础估算工程费用。用一虚拟工况对提出的模型及计算公式进行了验证。

The k-ε model was used to establish a mathematical model of non-buoyant jet in coflow by using the hybrid finite analytic method(FAM).The comparison result between the simulation and former experimental data is satisfactory,which indicates that the turbulence mathematical model and the numerical method are effective.The prediction results under condition of low velocity and the concentration trajectories of non-buoyant jet were given subsequently.

在k-ε双方程紊流模型基础上,结合混合有限分析交错网格法,对流动环境中的同轴纯射流进行了计算,将计算结果与前人的试验资料进行对比,两者吻合较好,表明建立的湍流数学模型及计算方法是有效的。在此基础上,对流速比较小工况时的情形进行预报,并给出同轴纯射流的浓度沿程分布图。

 
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