查询词典 diffusion coefficient

And some discussions are included. Additionally, the probable structure information for the finite-thickness two-layered slab tissue can be obtained from the diffusion reflectance and transmittance measurements according to the discrepancies of fitting reduced scattering coefficient and the sign of the amplitude factor.

标 签 医用光学与生物技术光学参数测量时间分辨漫射光谱多程测量蒙特卡罗模拟最小二乘拟合 medical optics and biotechnology optical parameters determination time-resolved diffusion spectroscopy multi-distance measurements Monte-Carlo simulation least square fitting algorithm

The electrochemical experiments indicated that the surface modification decreased the polarization of MnO2 electrodes, increased the discharge potential, the discharge capacity and cycle stability, which is probably due to the increase of the diffusion coefficient of protons after surface modification.

与纯MnO_2样品相比，添加Bi和Bi_2O_3的样品显示了较大的放电容量和较好的循环稳定性，且放电容量随着Bi含量的增大而增加。

The experimental determination of effective inter—diffusion coefficient of non—reactive condition of immobilized enzymes: The immobilized enzyme was immersed into the substrate of dextrine solution. The De value was measured as well as fitted theoretically.

无酶解反应发生条件下，对消除活性后的固定化酶有效内扩散系数的测定：在本实验系统下，建立相应实验设备，采用浸入法测定了基质糊精在固定化酶中的有效内扩散系数，并进行了De值的拟合计算。

Results showed that the moisture diffusion coefficient increased with the increase of the drying medium temperature or IMC, reaching a maximum near the fiber saturation point.

结果表明，干燥介质温度越高，扩散系数越大；初含水率越高，扩散系数越大，在纤维饱和点附近迭最大。

The moisture diffusion coefficient was increased at the early drying stage when the moisture content was high,and hit the maximum value when the moisture content drew close to the fiber saturation point,and then decreased gradually as the moisture content decreased.

结果表明：干燥温度越高，干燥各阶段水分扩散系数及平均水分扩散系数也越大；初始高含水率阶段，随含水率逐渐降低，水分扩散系数呈逐步增加趋势，在纤维饱和点附近时达最大值；随后，随含水率逐渐降低呈逐步减少趋势。

The recovery of tin and nitric acid from the spent solder stripper, and the feasibility of recovering nitric acid were investigated by determining diffusion dialysis coefficient of the dialysis membrane for different spent liquor including iron,copper and tin.

通过考察铁盐、铜盐和亚锡盐对硝酸扩散系数的影响研究了采用扩散渗析法从废退锡液中回收硝酸的可行性，实际样品的研究表明，扩散渗析法回收硝酸的回收率在70％以上。

For the Z-shaped micro-channel micromixer by convective mass transfer, the inlet velocity has the very tremendous influence to the mixing, but the diffusion coefficient\'s impact is small to the mixing. Micromixer with S/W=2 structure can make the good mixing performance under each kind of speed condition. The smaller the angle of corner of Z-shaped micro-channel micromixer is, the higher the mixing performance is.

对于以对流传质为主的Z型通道微混合器，(来源：ABC论文53网www.abclunwen.com)入口速度对混合有很大的影响，而扩散系数对混合的影响较小。S/W=2在各种速度条件下均能取得较好的混合效果。Z型通道微混合器的转角越小，其混合性能越高。

In addition, the orientational freedom k and the diffusion coefficient D of water molecules are reduced because of new formed hydrogen-bonding structures between water and solvated ions.

另外，水分子与NaCl离子间形成的新氢键结构降低了H2O分子的旋转自由度k和扩散系数D。

The results show that, the Fick's second law based on corrosion environment should be presented; the linear isotherm of chloride binding is appropriate in concrete structures; the amounts of bound chloride in tide range area and air environment is 0.11~0.37 times of free chloride; the diffusion coefficient is 1/3 to the concrete without RAM and the effect is the best when the RAM ratio is about 15%.

研究表明：Fick第二定律仍需进一步改善，有必要根据不同侵蚀环境建立不同的侵蚀模型；用线性结合理论描述实际混凝土结构中的氯离子结合基本适用；潮差区及以空气中氯离子侵蚀为主的混凝土结构，结合氯离子占自由氯离子的相对值大致在0.11～0.37之间；掺加海水耐蚀剂混凝土的氯离子扩散系数大致可降为原来的1/3；海水耐蚀剂含量在15%左右时其提高混凝土抗氯离子渗透性能的效果最明显。

The results show that, the Ficks second law based on corrosion environment should be presented; the linear isotherm of chloride binding is appropriate in concrete structures; the amounts of bound chloride in tide range area and air environment is 0.11~0.37 times of free chloride; the diffusion coefficient is 1/3 to the concrete without RAM and the effect is the best when the RAM ratio is about 15%.

研究表明：Fick第二定律仍需进一步改善，有必要根据不同侵蚀环境建立不同的侵蚀模型；用线性结合理论描述实际混凝土结构中的氯离子结合基本适用；潮差区及以空气中氯离子侵蚀为主的混凝土结构，结合氯离子占自由氯离子的相对值大致在0.11～0.37之间；掺加海水耐蚀剂混凝土的氯离子扩散系数大致可降为原来的1/3；海水耐蚀剂含量在15%左右时其提高混凝土抗氯离子渗透性能的效果最明显。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。