查询词典 diffusion coefficient

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。

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 evaluate the feasibility of diffusion-weighted imaging and apparent diffusion coefficient in diagnosis of cervical cancer.

目的：分析正常子宫宫颈3层结构及宫颈癌的扩散加权成像特点，探讨其及相应的表观扩散系数对宫颈癌的诊断价值。

Comparatively, Na^＋ has a wider diffusion range and higher self-diffusion coefficient than Mg^2＋.

在Na／Mg^-蒙脱石中，Na^＋和Mg^2＋的扩散方式不同，Na^＋的扩散范围相对更广，自扩散系数更大。

The one is how the long-range order of atoms can be restored when atomic diffusion takes place, and the other is how the theoretical expressions in their present form, more than one self-diffusion coefficient parameter, can be applied to experimental results directly.

一是如何正确理解原子的热扩散运动与合金中原子有序排列之间的矛盾；二是能否将扩散系数以外的其它理论参量与原子跳跃迁移的相关实验测量联系起来。

Vascular cognitive impairment ; Diffusion tensor imaging ; Histogram analysis ; Apparent diffusion coefficient ; Anisotropy index

血管性认知功能障碍；扩散张量成像；直方图分析；表观弥散系数；各项异性指数

Vascular cognitive impairment Diffusion tensor imaging Histogram analysis Apparent diffusion coefficient Fractional anisotropy

血管性认知功能障碍；扩散张量成像；直方图分析；表观扩散系数；各项异性分数

The diffusion structure tensor in the diffusion coefficient function is a vector-valued structure tensor, which integrates the intensity and structure information of each channel, as well as the correlation among channels.

扩散滤波器中的扩散系数定义为关于彩色结构张量的函数，以使图像演化能够综合各通道信息，解决了各通道所得位移场不一致而引起的色彩混迭问题。

Thermal diffusion coefficient ; longitudinal dispersion ; transverse diffusion ; thermal pollution.

热扩散系数；纵向分散；横向扩散；热污染

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。