查询词典 diffusion air pump

Chapter 2Finally, molecular dynamics simulations were performed to investigate the effect of catenation on methane diffusion as well as diffusion mechanism in those materials.

第二章我们进一步研究了互穿结构对甲烷扩散的影响以及气体在该类材料中的扩散机理，发现互穿结构导致室温下甲烷的扩散系数被降低了3～5倍，远大于对氢气扩散系数的影响。

Objective: To evaluate the value of apparent diffusion coefficients in Magnetic Resonance diffusion weighted imaging with echo-planar technique in depicting the tumor cellularity and grading of astrocytomas.

目的：运用磁共振弥散加权成像技术评估近似弥散系数在星形细胞瘤的细胞密度和病理分级中的作用。

Methods Diffusion anisotropy was classified with a method based on apparent diffusion coefficient and spherical harmonic function.

提出了一种基于表观扩散系数和球谐函数的多纤维扩散各向异性分析方法对扩散各向异性进行分类。

Objective To investigate the characteristics of fractional anisotropy and apparent diffusion coefficient of association fiber tracts in patients with amnestic mild cognitive impairment, and to assess the application value of diffusion tensor imaging in differential diagnosis of aMCI and AD.

目的 通过磁共振扩散张量成像探讨遗忘型轻度认知障碍患者联合纤维束FA值和ADC值的变化特点，评价DTI对aMCI的诊断及aMCI与AD鉴别诊断的应用价值。

Objective To investigate the diagnostic value of apparent diffusion coefficient value of diffusion weighted imaging in liver cirrhosis.

目的初步探讨磁共振弥散加权成像ADC值对肝硬化的诊断价值。

Objective To investigate the effect of apparent diffusion coefficient value in diffusion-weighted imaging in full-term neonates with hypoxic-ischemic encephalopathy.

目的 探讨磁共振扩散加权成像的表观弥散系数值在新生儿缺氧缺血性脑病中的应用价值。

Because of the smaller diffusion coefficient, the diffusion of Li〓 in solid phase is usually the rate determining step.

由于扩散系数较小，因此Li〓在固相中的扩散一般为反应的速控步骤。

Gas diffusion layer is one of the most important components in proton exchange membrane fuel cell. The contact resistance between current collector and gas diffusion layer is an important part of the total resistance of fuel cell and is also a key factor led to the power loss of PEMFC.

气体扩散层是质子交换膜燃料电池的重要组件，其与极板之间的接触电阻是燃料电池内阻的重要组成部分，也是导致燃料电池功率损失的重要因素。

The computational formula for diffusion coefficient of fiber solvent is as follows:During the process of di-diffusion, D is related to the variety of extracting agent and extracting mode, D increases with the increasing of extracting bath ratio and temperature.

纤维溶剂扩散系数的计算公式为：双扩散过程中溶剂扩散系数与萃取剂种类和萃取方式有关，并随萃取浴比和萃取浴温度的升高而增加。

Objective:To correlatively study the relationship between the water diffusion parameters measured using diffusion tensor imaging and the histological malignancy of astrocytoma.

目的：探讨扩散张量成像测量水分子扩散状态的参数相对值与星形细胞瘤恶性程度之间的相关性。

Don't listen to their haver, nothing of that sort.

别听他们胡说八道，根本就没那回事。

But bank's shares trade below their book value, suggesting that investors are skeptical.

但是，银行股票以低于账面价值的价格交易，这一点反应了投资者的怀疑。