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the free-volume theory
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  自由体积模型
    We also evaluate the vibrational contribution of the lattice ion to the total free-energy according to the free-volume theory, and give the relation of pressure-volume at T = 1 eV. Comparison is given between these two results, experimental results and that from Sesame database.
    通过自由体积模型计算得到晶格离子的自由能,给出温度为1电子伏的压强与体积的等温变化关系。 两种模型的计算结果分别于实验和sesame数据库进行比较。
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  the free-volume theory
The free-volume theory of liquid solutions formulated by Flory and also by Patterson for binary systems, has been extended to ternary systems.
      
The permeability and the free-volume fraction with varying the ethylene content were well related and the relation was interpreted based on the free-volume theory near below and above the glass transition temperature.
      
Thus, the free-volume theory should hold to a fairly good approximation for these two melts.
      
The data are used to characterise the lipophilic pathway across plant cuticles in terms of the free-volume theory.
      
The measured values were evaluated on the basis of the free-volume theory.
      
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Solid-state carbon-13 NMR linewidth of 1,2-polybutadienes with various con-tentsof 1,2-units were measured over a temperature range from-50C to 50C The structure and temperature dependences of the linewidth have been investigated. It is found that the NMR relaxation in polymers is dependent not only on the chain structure but also on the free volume. The free volume theory is also applicable to the NMR relaxation in polymers.

本工作测定了一系列1.2-聚丁二烯样品在不同温度下的固态~(13)C-NMR线宽,研究了线宽对链结构和温度的依赖性;发现在一定的温度范围内,线宽与温度的关系符合WLF方程,这表明高聚物的NMR弛豫不仅取决于分子结构,也与自由体积有关。自由体积理论在NMR弛豫中也是适用的。

This paper introduces a way of applying the free volume theory to the formation of equations of state in the transitional section.

本文介绍了用自由体积理论作过度区物态方程的方法。

The improved form of calculation formula for the activities of the components in binary alloys has been derived based on the free volume theory considering excess entropy and Miedema's model for calculating the formation heat of binary alloys. The new method of revising the activities' values has been analyzed for stronger interaction systems. The calculated results are in good agreement with experimental values.

基于自由体积理论导出的超额构型熵和超额振动熵,结合 Miedema二元合金生成热模型,得出计算二元合金熔体活度的改进计算式,并对强相互作用体系,提出用校正因子来修正活度值的新方法该公式计算结果与实验值吻合良好。

 
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