外扩散

且以陶瓷为载体的催化剂更接近于外扩散控制的模型，沸石负载后催化剂（Mn-24h-350）更接近氧活化控制步骤的模型。

And the ceramic supported catalysts behave much closer to the external diffusion control model . The clinoptilolite supported catalyst ( Mn-24h-350 ) behaves closer to the other one .

一维几何对称催化剂颗粒内零级等温反应的理论分析&1.忽略外扩散影响

Theoretical analysis of zero-order isothermal reactions within one-dimension geometry symmetry catalyst particles ── 1.neglecting external diffusion

Er离子注入Si和SiO2/Si溅射和外扩散对浓度分布的影响

Influence of sputtering and out-diffusion in Er implanted SiO_2 / Si on depth profile

铂盐溶液浸渍Nafion膜的外扩散

Film diffusion in impregnating Nafion membrane with platinous solution

si/Si（1-x）Gex/Si异质结双极晶体管中基区杂质外扩散与未掺杂Si（1-x）Gex结隔离层的影响

The Effects of Base Dopant Outdiffusion and Undoped Si_ ( 1-x ) Ge_ x Junction Spacer Layers Si / Si_ ( 1-x ) Ge_x / Si Heterojunction Bipolar Transistors

本文的目的在于评价高分辨率超声（US）对于预测甲状腺乳头状微小癌（PTMC）甲状腺外扩散的诊断价值。

The aim of the present study was to evaluate the usefulness of high-resolution ultrasound ( US ) for predicting the extrathyroidal extension of papillary thyroid microcarcinoma ( PTMC ) .

YSZ层厚为20nm。并且，由于Ba自YBCO层的外扩散，YSZ层含有Ba。

YSZ buffer layer with ( 100 ) preferredorientation is about 20 nm thick and contains element Ba , due to outdiffusion of Ba from YBCO layer .

体电参数的变化是由于高温低As压条件下，发生As间隙原子的外扩散，在样品中引入V（Ga）、Ga（As）和Ga（As）V（Ga）等受主缺陷所致。

The changes of bulk electrical parameters are because the out-diffusion of As interstitial causes the generation of acceptor defects , VGa , GaAs and Ga ^ VGa under the conditions of high temperature and low As pressure .

通过红外吸收测量、带电粒子活化分析及腐蚀后的金相观察，证实了经三步热处理退火后的CZ硅片，表面层氧外扩散而形成清洁区，体内氧沉淀形成高密度的缺陷区。

The variation of the state of oxygen in CZ silicon wafer and the distribution of precipitate are studied by infrared absorption measurement , charged-particle analysis and etching metallographic examination .

从背散射分析可以发现，Y原子有着明显的增强扩散和外扩散效应，Y离子的深度分布已达620nm，远大于LSS理论的预计值。

Backscattering analysis shows that Y atom enhanced-diffusion and outdiffusion are appeared obviously . The implantation depth reaches 620 nm , it is much greater than calculated value by TRIM program .

实验结果表明，当活性半焦粒度小于0.2mm，气体流速不小于0.8m/s时可消除内、外扩散的影响；

Results show that inner-particle diffusion and outer-particle diffusion can be eliminated when the size of activated semi-coke is less than 0.2 mm and the gas flow rate reaches 0.8 m / s , which results in the acquirement of catalytic reaction kinetics equation .

锂分子中紫外扩散带受激辐射

Ultraviolet diffuse - band of stimulated radiation in lithium dimer

低活度外扩散渗铝对钛合金高温氧化行为的影响

Effect of Aluminizing on Oxidation Behavior of Ti Alloy

Ti：LiNbO3外扩散抑制的简单检测方法

Inspecting suppression of out-diffussion in Ti : LiNbO_3 crystals

最后对氢的外扩散现象提出了几种可能的简单解释。

Some possible interpretations are presented for out-diffusion of hydrogen in the films .

改性活性炭对ClO4-的吸附速率控制步骤由外扩散和内扩散模式联合控制。

The adsorption rate controlling step is determined by inner and external diffusion models .

锂离子外扩散对扩镁铌酸锂表层结晶特性的影响

Influence of lithium ion outdiffusion on the crystallinity of magnesium diffused lithium niobate surface layer

结果表明，在实验操作的流速范围内，过程属于外扩散控制。

Results showed that the process was in film diffusion control in the experimental velocity range .

内、外扩散同时存在时活性非均匀分布对催化剂有效因子的影响

Effect of Nonuniform Activity Distribution on Effectiveness Factor of Catalysts in Simultaneous Internal and External Diffusion

背景：甲状腺外扩散是决定甲状腺手术范围的重要因素。

Background : Extrathyroidal extension is an important factor to determine the extent of thyroid surgery .

从数学上解释了外扩散抑制和一般性化学抑制间所存在的抗激发互交作用。

This paper explains the antienergistic interaction between external diffusion and chemical inhibition in the reaction mathematically .

固定化细胞系统的动力学常数还受到内扩散和外扩散的影响。

These kinetics parameters of the immobilized cell system can be significantly influenced by internal and external diffusion .

第二阶段为晶格层间钾向层外扩散的稳定速率阶段；

In the second stage , the K between interlayer diffuse outside layer , the diffusion rate was stable ;

数模的精度取决于消除外扩散影响程度的大小；

The precision of the mathematical model was determined by the extent of eliminating the effect of outer diffusion ;

当搅拌转速超过150r/min时，外扩散限制可被消除。

And the external mass transfer limitation could be eliminated when the stirring rate was more than 150 r / min.

计算机辅助模拟计算催化剂颗粒内的一级等温平行反应&忽略外扩散的影响

Simulating and calculating the forst-order Isothermal Parallel Reactions With in a Porous Catalyst particle by Computer & Neglecting the External Diffusion

探索性地分析了锂外扩散的机理，并提出了一种抑制锂外扩散的方法。

The mechamism of outward diffusion of Li ion is analyzed tentatively , and a method for suppressing such a diffusion is suggested .

通过评估超声表现，如肿瘤与甲状腺包膜接触和甲状腺包膜破裂，来预测甲状腺癌的外扩散。

The US findings , such as contact and disruption of thyroid capsule , were evaluated to predict the extrathyroidal extension of thyroid carcinoma .

任由这些人丢掉饭碗，失业率会上升，购买力会下降，负面影响会像涟漪一样往外扩散。

Throw them out of work , and you create unemployment and a fall in purchasing power , which would spread in ever-widening circles .

结果表明：本实验系统中传质过程接近于外扩散控制，近似解与精确解吻合较好；

The results showed that for this experimental system the particle-fluid mass transfer almost controls the overall rate , the approximate solutions fit the exact solution .