分子体积

It shows that the addition of transitional metal organic complex has little influence on the mechanical properties, thermal resistance and chemical resistance, butd-space of molecular chain and free volume of membrane materials increase after adding transitional metal organic complex.

结果表明，添加剂的加入不影响膜材料的机械性能、耐热性能和耐溶剂性能，但增大了聚合物分子链的间距和自由体积，并使气体的透过速率得以提高而气体的透气选择性变化不大。

Based on the Miedema model and Tanaka equation, a new method for calculating the parameters in the molecular interaction volume model has been developed to predict the activity coefficient s of multicomponent liquid alloys, in which not experimental data but only some physical properties of elements are required.

基于Miedema模型和Tanaka关系，提出了计算分子相互作用体积模型参数的新方法。该方法仅需知道元素的某些物理性质而无须熔体的实验数据，简化了计算多元合金熔体活度系数的步骤。分别计算了Ti-6Al-4V和Ti-5Al-2.5Sn在不同温度下组元活度系数的变化，计算了多种铜基合金以及Zn-Sn-Pb-Cd-Bi合金的活度或活度系数与组元配比的关系；并与Wilson模型进行了比较，计算值与实验值较好吻合

The Molecular Interaction Volume Model is introduced for the prediction and fitting of the activities of liquid alloys Ni-Mg-Cu,Ni-Al-Si and Ni-Cu-Co in the ternary systems.

对Ni-Mg-Cu，Ni-Al-Si及Ni-Cu-Co三组三元系预测的总平均相对误差及最小的拟合总平均相对偏差分别为12.0%和9.0%，表明分子相互作用体积模型比较适用于这类液态合金的活度预测

The viscosity and surface tension of lubricant have been qualitatively analyzed and predicted by means of partial least squares method and quantitatively calculated using artificial neural network with structural parameters as features. The structural parameters involved distribution coefficient, molecular volume. The qualitatively or quantitatively calculated results are in agreement with experimental results.

用分子碎片法计算表示润滑剂分子结构的体积参数、电负性参数、亲水－疏水性等参数，结合偏最小二乘法和人工神经网络方法对分子结构与表面张力和粘度之间的定量关系进行了计算及预报，结果与实验值符合较好。

Computers have so far been based on two-dimensional chips made from silicon, but there are developments already well advanced to make three-dimensional chips with vastly improved performances, and even to construct them out of biological molecules that can be miniaturised even more than metal-based computer chips.

目前，二维芯片主要用硅制造，现在已经开发了更先进，能量更大的三维芯片，甚至能够用生物分子制造比金属芯片体积更小芯片。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。