查询词典 diffusion coefficient

Thermodynamic properties and structure of water under superhigh pressure were investigated by Equilibrium Molecular Dynamics simulations. The obtained heat of vaporization and self-diffusion coefficient are in good agreement with the experimental data.

采用平衡分子动力学方法，模拟研究了温度范围为243~348K、压强范围为0.1~400MPa条件下水的热力学性质、结构和动力学性质，模拟结果与实验值吻合较好。

Moreover, self-diffusion coefficient of interlayer water is higher for Na-montmorillonite than that for Na/Mg-montmorillonite at the same water content.

Na／Mg-蒙脱石比相同水含量下的Na-蒙脱石层间水的自扩散系数小。

In the Chapter 2 of this dissertation, new pulse sequences were introduced, in which CPMG and bipolar gradient pulses have been implemented into pulsed-filed-gradients spin-echo NMR spectroscopy, and is used to measure the self-diffusion coefficient of metabolites in bio-fluids.

实验结果表明，这种新方法不仅可以在生物体温或更高温度下准确测量分子的自扩散系数，不受对流和背景梯度的干扰，同时还具有复杂核磁共振谱的编辑功能，能够在不做任何物理分离的条件下，分别研究生物大分子和小分子的扩散系数，以及分子之间的相互作用。

Using molecular dynamics simulation method, this project carried out intensive studies on these two aspects and their relationship. Melting point, density,specific heat,self-diffusion coefficient and viscosity were involved during simulation of thermophysical properties.

本项目利用分子动力学对液态金属的热物理性质（包括熔点、比热、密度、自扩散系数和粘度）、结构以及二者之间的关系进行了研究。

For convection-dominated diffusion problems, because the diffusive coefficient is very small, it is expected that the new upwind schemes in this section can get very high computational accuracy.

对于对流占优扩散问题，由于扩散系数比较小，可以期望，本节所给的新型迎风格式能够达到比较高的计算精度。

Forced vital capacity was 86+/-18%, forced expiratory volume in 1 s 78+/-19%, and carbon monoxide diffusion transfer coefficient 28+/-16% of predicted.

用力肺活量为86+/-18％，一秒用力呼气量78+/-19％，和一氧化碳扩散系数28+/-16％预测值。

The reduction of anthrone in the absence and presence of CO_2 was studied bycyclic voltammetry. The reduction of anthrone is irreversibile process and the transfercoefficient is 0.24. The diffusion coefficient is 8.597×10~(-7) cm~2·s~(-1). The mechanismhas been proposed on the results.

考察了合成条件如支持电解质、电极材料、电解电位、电解电量和蒽酮浓度等对目标产物产率的影响，优化了电解条件。

The liquid diffusion coefficient is an extremely important parameter in mass-transfer processes. Benzylpenicillin potassium, benzylpenicillin sodium, ascorbic acid, amino acids and amino acid hydrochlorides are used widely as medicine and nutriment.

液相扩散系数是传质过程中非常重要的参数，青霉素、抗坏血酸、氨基酸及氨基酸盐酸盐作为广泛应用的医用及营养药物，对其在水中的扩散。。。

The results show that the diffusion coefficient decreases with an increase in the quantity of ethanethiol adsorbed.

模拟结果表明，对于这两种沸石，负载量增加，扩散系数减小。

Lamellar microstructures of TiAl alloys may be stabilized during exposure at high temperature by the addition of high-Nb element which may decrease stacking fault energy, interlamellar boundary energy and atomic diffusion coefficient.

高Nb合金元素的添加降低堆垛层错能与片层界面能，减小原子扩散系数，可能可以达到提高TiAl合金中片层组织的热稳定性的目的。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。