查询词典 diffusion

The numerical solution of carbon diffusion was solved and the finite difference method was used, the inner boundary conditions of the meshes were treated using diffusional flux and carbon's activity, and adaptive software was assembled. The system of identification indicated that the numerical results were accordant to the expermental results.

用有限差分法寻求异种接头碳扩散的数值解，利用扩散通量和扩散驱动力活度的知识处理了网格的内边界，编制了相应的软件，辨识结果表明用有限差分法进行异种接头界面碳扩散迁移的定量计算和状态辨识与试验结果的分布趋势是一致的。

The increase in the diffusional deposition was found to occur mainly in the chamber after the vane section when the gas expands and slows down. Therefore, particles have longer residence time to be collected in the chamber by diffusion.

此外发现微粒的扩散损失主要发生於导翼片之后的微粒收集腔体中，因为气流出了导翼片之后速度大幅降低，微粒因而有较长的停留时间由於扩散作用而被收集。

On the other hand, the enrichments of Pb and Sr at the rim of the interstitial rutiles suggest influence of subsequent fluids on the compositions of rutiles, which could have affected Zr of the rutiles as well This study provides the evidence for the Zr diffusion at a high temperature and fluid activity that could have contributed to the lower temperatures (598-827℃) recorded by Zr-in-rutile for the eclogites from the Dabie-Sulu UHP terrane.

这些研究结果为金红石中Zr在高温下的扩散作用和后期流体活动的影响提供了重要证据，这可能是利用金红石Zr含量地质温度计计算的苏鲁一大别榴辉岩变质温度(598~827℃)偏低的主要原因。

The migration of the photocarrier and the formative process of space field induced by photocarrier s drift, diffusion and photovoltaic effect were studied.

探讨了光生载流子在漂移、扩散和光生伏打效应三种机制下输运迁移以及空间电荷场的形成过程。

We numerically investigate the deflection characteristics of incoherent coupled bright and dark photovoltaic spatial soliton pairs in a photovoltaic photorefractive crystal with diffusion effect.

采用数值方法研究了在一个具有扩散效应的光伏光折变晶体中的非相干耦合的亮和暗光伏空间孤子对的偏转特性。

This has been hypothesised as diffusion process from the injection site into the lid muscle and causing paralysis. Unfortunately there is no reversing medicaion for this complication.

曾有假说提出该现象是由于被注入的肉毒杆菌素扩散引起的上眼睑肌肉麻痹，而且尚未有有效的针对性药物出现。

On the other hand, where the diffusion took place between the First and Third Worlds, these exchanges have often been projected as one-way impositions where the receivers are silent, oppressed, impotent – if not outright invisible.

另一方面，在在第一和第三世界之间进行的扩散，这些交换常多是单向徵收，接受者只能无能地沉没与被压迫─只要不是全然的无形。

Methods 38 patients with cerebral infarctions(7 acute, 18 subacute, 13 chronic) were analyzed by diffusion tensor imaging.

方法分析38例不同病期的脑梗死病人的DTI图像。

Objective To explore the value of diffusion weighted imaging in the differential diagnosis between viral encephalitis, cerebral infarctions and low grade astrocytomas.

目的探讨扩散加权成像对病毒性脑炎、脑梗死和脑低级星形细胞瘤的鉴别诊断价值。

The presence of polarized potential is a ge neral property of the existence of an oil/gas reservoir. The whole oil/gas reser voir together with its diffusion-flowing belt can be taken as the source of the potential field, and the polarized potential can be described by a model of pol arized dipole.

油气藏存在极化电动势是共性，可以将整个油气藏、扩散带和扩散流动带作为场源，其极化电动势可用极化偶极模型描述。

" I' d like to get some rough idea about music in the baroque ear, please."

请简要介绍一下巴罗克时期的音乐，好吗？

The results showed that the peak latency and pattern of SEPs elicited by electrical needling in LI-l1 and MP were similar. The amplitude of SEPs elicited by electrical needling in LI-l1 was higher than that of MP. There was no obvious SEPs generation when MM was electrical needling.

结果显示，电针刺激曲池穴和其邻近桡侧伸腕长肌运动点诱发性脑电波的波形和波峰时间是类似的，只是穴位的诱发性脑电波波幅较大，而电针刺激非穴位点并没有明显的诱发性脑电位。