助手标题
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
共[3]页 共[47]条 当前为第1条到20条
 

相关语句
exchange time
This effect is caused by the finiteness of the interelectron energy exchange time during the laser action.
      
The overlap integral between the optical field distribution and the stress distribution can be enhanced simply by prolonging the proton-exchange time.
      
With all latices the hydrogen-metal ion exchange tends to be a complete one provided this process is given a sufficiently long exchange time.
      
At a luminal perfusion rate of 40 nl/min, the lag time was some 20 sec and 80 % fluid exchange time some 3 sec.
      
Variability in water-exchange time between Tokyo Bay and the Pacific Ocean during winter is investigated based on the results of intensive field observation from November 2000 to March 2001.
      
Water-exchange time between Tokyo Bay and the Pacific Ocean during winter mainly depends on the strength of northerly monsoon, being about 16 days under the weak monsoon and about 12 days under the strong monsoon.
      
Water-exchange time also varies depending on the open-ocean condition.
      
the relative volume fractions and the extracellular tortuosity, while the intrinsic intracellular diffusion constant and the exchange time are predicted to have minor influence.
      
At pH 7.4 a break in the Arrhenius plot of water exchange time at around 26°C was found.
      
The mean value of the apparent activation energy of the water exchange time at temperatures higher than that of the discontinuity was 5.7 kcal/mole (±0.4); at lower temperatures the values of the apparent activation energy were below 1.4 kcal/mole.
      
The pH dependence of water exchange time of isolated erythrocytes revealed a marked increase of the water exchange time values in the acid range of pH; a much smaller variation of the same parameter occurs between pH 7.0 and 8.0.
      
Although the water exchange time of ghosts was longer than that of erythrocytes, no significant differences in their diffusional permeability were noticed for temperatures in the range 2-43°C.
      
Contrary to what was previously noticed in erythrocytes, no significant increase in the water exchange time of ghosts in the acid range of pH occurred.
      
The values obtained for the exchange time (Tex) across the membrane were independent of the cytocrit and of the Mn2+ concentration (in the range 2.5 to 5mm).
      
The whole-system water exchange time during summer (≈13 d) was shorter than in winter (≈26 d) as northwesterly winds enhancing mixing with the ocean are more intense during the spring-summer upwelling season.
      
For the hypolimnion of überlingersee, a sill-separated basin in the western part of Lake Constance, a simple budget model gives an exchange time of 67 ± 6 days with the main basin (Obersee).
      
We further investigated the external load of nutrients, the water exchange time and the nutrient level in the water and determined if they could be linked to the vegetative state of a shallow bay and used as management tools.
      
This could be due to the long water exchange time of the bay or indicate alternative vegetative states within an interval of nutrient concentration.
      
Based on our studies we propose that the point at which a bay shifts from one state to another depends on the levels of the external nutrient load, the water exchange time and the depth of the bay.
      
A new NMR spin relaxation experiment is described for measuring chemical exchange time constants from approximately 0.5?ms to 5?ms in 15N-labeled macromolecules.
      
 

首页上一页123下一页尾页 

 
CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社