| 1. | The following diagram depicts the global scenario in respect of the various economies internet diffusion rate 以下图表载列全球各个经济体系的互联网渗透率。 |
| 2. | Other issues include scaling - down problems that occur with biochemical reactions , such as diffusion rates and heating 其它还包括降低生化反应中出现的问题如速度和加热的弥散。 |
| 3. | Recently , as mobile communication technology develops fast and mobile phone diffusion rate ascend year by year , synchronously the data transmission service including internet business expands ceaselessly , computers as internet terminal are not exclusive 近年来,移动通信技术迅猛发展,手机普及率逐年上升的同时,其数据传输业务也不断扩展,包括无线连接internet业务。 |
| 4. | At the some time , the reaction between ti and al also is an exothermal reaction , so the inner energy is increased sharply which prompt al3ti to decompose and the diffusion rate of ti toward graphite particles and the decrease the inoculation tune 同时加镁后生成的tic颗粒的扩散速率增大,因而增大了tic颗粒的形核数,使生成的tic颗粒更加细小弥散,在复合材料中的所占体积分数增大。 |
| 5. | Influence of some parameters are analyzed , such as : d ( diffusion rates ) , v ( coefficient of convection ) . double or three compartments model of soc is used . it is found that the diffusion process for different compartments of organic carbon in soil is very differently . this model could also calculated the accumulation of soc in soil per year , which is helpful to understand the dynamic process of organic carbon storage in soil 最后一章本论文对新老有机碳在土壤当中的迁移积累进行了数值模拟,分析了不同参数对有机碳扩散的影响,得到了不同年龄的有机碳在土壤中的分布规律,这为进一步预估中国土壤中的有机碳动态变化打下了基础。 |
| 6. | Depth profile acquired with aes has shown that excellent emission character owns to the yielding of the surplus la . analysis the active element concentration on the mo - la2o3 - sc2o3 cathode during it heated . results show la and o diffuse rapidly above 1000 ? , but diffusion rate of o gets slow above 1250 ? , so surplus la maybe produce at this temperature 而在高于1250时,镧含量依然上升,而氧含量变化已经不大,故可以认为这是超额镧生成的温度,元素钪在从800加热到1290 ,其含量基本没有变化,说明在这种材料中,钪元素向表面的扩散不明显。 |
| 7. | The hydrolysis reaction of tetrabutyl titanate in adsorption was special because the reactor was nanophase , the mechanics of hydrolysis reaction had three characteristics : ( 1 ) the hydrolysis reaction rate of tetrabutyl titanate was small ; ( 2 ) the hydrolysis reaction in adsorption layer had three process , the influence of temperature on the last two process was small and different ; ( 3 ) the diffusion rate was the most insensitive to temperature 吸附相反应技术中使用的反应器是纳米级的吸附层,因而吸附层中的钛酸丁酯水解反应也与传统的液相法有着不同的机理:水解反应的速率较小;吸附层的钛酸丁酯水解反应分成三个阶段,后两个反应对温度都不敏感且敏感性也不同;扩散速率对温度的敏感性最小。 |
| 8. | ( 5 ) simplified calculation method without considering degradation of bond strength and response surface method using analysis output by fem is carried out to calculate the time - dependent reliability of corroded structure separately . the influence of chloride diffusion rate and steel corrosion ratio on structure reliability is discussed . the applicable scope and the calculation difference between the two methods are compared ( 5 )分别采用不考虑混凝土与锈蚀钢筋之间粘结力减弱的简化方法和利用非线性分析结果的响应面方法计算锈蚀钢筋混凝土结构的时变可靠度,研究了氯离子侵蚀速率、钢筋锈蚀率对结构可靠度的影响,并分析比较了这两种可靠度计算方法的适用范围和计算差异,为混凝土结构基于可靠度的耐久性鉴定提供了实用判别方法。 |
| 9. | Al these can increase the nucleation rate , so the tic particles become smaller and disperse more homogeneous , and the volume fraction of tic is increased . when 0 . 5wt % rare earth ceo2 is added to melt , the surface tension of melt is decreased and fluidity is enhanced , accordingly it enhances the diffusion rate of ti to c particles during the course of reaction and prompts the formation of tic 加入0 . 5wt的稀土ceo _ 2增大了熔体的表面张力及流动性,从而在反应阶段增大ti原子朝c颗粒的扩散速率,促使tic颗粒生成,以及在反应完成后增大tic颗粒朝熔体中扩散的速率,促使tic颗粒的形核。 |
| 10. | According to the study of bass equation , it described the distribution features of incubation time , studied the relations between diffusion rate and the coefficient of innovation and imitation , and the time to peak sales and the point of inflection of diffusion function and the maximum diffusion rate 通过对bass方程的分析,描述了技术创新扩散的生长曲线方程,探讨了技术创新扩散率同创新系数和模仿系数的关系以及销售峰值的到达时间和最大扩散率等酝酿期的扩散特性。 |