扩散

We have found that microfilament of cytoplasm was decreased or disappeared and rate of lateral diffusion of ConA r ceptor was increased (D = 1.05 ×10-10cm2/ sec)after the cells were treated with CB. The microfilaments and the rate of lateral diffusion of ConA receptor on cell membrane were recovered D = 0.81 ?

经CB处理细胞后，胞质微丝减少或消失，但是膜ConA受体复合物的侧向扩散运动增加〔D〕=1.05×10~(-1)cm~2/sec，当除去CB后，微丝重新出现，膜ConA受体复合物的侧向扩散运动又减慢〔D〕=0.81×10~(-1)cm~2/sec，与对照组相似。

The chemical structure of the product was characterized by means of the melting point and IR. The results show that tetraethylammonium bromide which was used as a phase transfer catalyst in this reaction had optimization effect on the interfacial diffusive reaction of BTC and PNP. Higher concentration of sodium hydroxide, lower temperature and a higher dosage of BTC produced a small amount of 4-nitrophenyl chloroformate, while lower concentration of sodium hydroxide and a lower dosage of BTC made reaction incomplete, which affected the yield.

结果表明，在碳酸二（4-硝基苯基）酯合成中使用的相转移催化剂四乙基溴化铵对受界面扩散控制的BTC气与对硝基酚钠反应有良好的相转移催化效果；氢氧化钠质量分数较低时，酚钠盐向溶有BTC的油相扩散速度较小，较高时会产生氯甲酸对硝基苯酯；温度较低、BTC量较高时，会产生少量氯甲酸对硝基苯酯，BTC用量较低会使反应不完全，这些都影响着收率。

The circinal cavities were found in calcium alginate beads and the cylinder holes were observed in zinc alginate beads from the SEM,which indicated that the volume of fraction of zinc alginate polymer was relatively bigger and the zinc alginate polymer chain was more rigid than that of calcium alginate .

凝胶的SEM照片可见，海藻酸钙的冷冻干燥颗粒内为较大的圆孔，海藻酸锌凝胶内为较小的长孔，表明海藻酸锌高分子链在凝胶颗粒中的体积分率相对较大同时刚性较强；卵清蛋白从海藻酸凝胶颗粒中释放的试验结果表明，由于上述海藻酸锌凝胶的特性，导致海藻酸锌对卵清蛋白扩散阻滞作用相对较强；根据试验数据计算得卵清蛋白在海藻酸钙、海藻酸锌凝胶颗粒中的扩散系数分别为1.19×10-7、0.07×10-7cm2/s，利用阻滞模型计算得海藻酸锌高分子链在凝胶颗粒中体积分率约为海藻酸钙高分子链在凝胶颗粒中体积分率的1.7倍。

So the respiratory physiology a hydrodynamics is the base of studying how gas convect and diffuse in the hi In this paper, we introduce the physiological structure and the process of | convection and diffusion in the lung. After analyzing some kinds mathematical model, we have got a digital model through simplifying l Weible model.

本文介绍了肺体的生理结构以及气体在肺内的传输和扩散过程，通过对现有几种数学模型的分析后，在Weible肺解剖模型的基础上简化得到肺的一维喇叭口数学模型，把气体在三维空间传输和扩散问题转化为一维问题。

5The distribution patterns of rare earth element compositions in the hydrothermal components are similar to that of pacific seawater. This infers the complex and significant interactions of hydrothermal fluid with surrounding seawater during its diffusing process. Dissolved trace metals in the hydrothermal fluid can be removed by settling terrigenous or biogenic particulates and precipitated quickly from the hydrothermal plume round the vent. On the other hand, hydrothermal particulates would also scavenge some elements from the seawater to coprecipitate into the sediments.

5岩芯沉积物中热液源组分携带的稀土元素组成具有类似海水的分布模式，反映了热液流体喷出海底后与其它物源物质之间的复杂的相互作用：一方面大量生物和陆源碎屑物质的快速沉积导致溶解态的热液源物质被快速清扫，无法向外扩散，快速堆积在热液喷口附近；另一方面，随热液羽状体向外扩散的颗粒态热液源物质也清扫海水中的元素共同进入沉积物。

Conducted on the environmental wind tunnel. The effects of the gas spill angle, the densimetric Froude number and the terrain parameter on the heavy gases diffusion are measured and investigated.

藉由实验量测重质气体之扩散浓度，以探讨当重质气体在各种溢漏角度、密度福禄数及地形条件下对於重质气体扩散之影响特性。

The enzymes break down the food to simple diffusible compounds which are absorbed into the rhizoids by diffusion and active transport.

假根必泌酵素将食物分解为简单的可扩散化合物，然后透过扩散及主动运输将食物吸进假根。

The free bile acid and dihydroxy bile acid glycine union(exisistence by the of non-ionic form ) also be absorb again through the simple proliferation way.this may occurs in any part of the small intestine and colon.

未结合的胆汁酸和二羟基胆汁酸的甘氨酸结合物，也过简单扩散的方式被重吸收。这种通过小肠膜的非离子化扩散可在小肠的任何部位及结肠发生。

The results showed that new type structure of organic phase containing inorganic phase between polyimide and titania particle by bond conjunct was formed.The discomposing temperature was decreased with the increasing of TiO2 contents,and the thermal stability was better than polyimide materials under the temperature of 450℃.The pore size increased with the increasing of TiO2 contents,and pore size distribution tended to disperse.The permeability of N2,H2 and CO2 across the membrane were controlled by Knudsen diffusion,and the memebrane exhibited outstanding hydrophilicity since their permeation coefficients of H2O／N,are higher than the Knudsen diffusion values.

结果表明，杂化膜材料形成了有机相包裹无机相的交联结构；聚酰亚胺与二氧化钛粒子形成了新型键联结构；其热分解温度随二氧化钛含量的增加而降低，在 450℃以下热稳定性优于聚酰亚胺膜材料；平均孔径随二氧化钛含量增大而增大，孔径分布趋于弥散；N2、H2和CO2在膜内渗透由Knudsen扩散控制，H2ON2分离因子均大于Knudsen扩散值，表现出良好的亲水性。

Firstly, this paper discusses the parameters of disquisitive status about innovation diffusion models and extends their range from the simple estimation to the economic meanings, the influence factors and the characters.

首先对技术创新扩散模型的参数研究情况进行了评述，在此基础上，将技术创新扩散模型参数的研究范围由单一的估计扩展到讨论参数的经济含义、参数的影响因素及特性，再进行有效测度研究的领域。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。