| 1. | In benzene or ethyl acetate solution rates increase linearly with methyl methacrylate concentration .
在苯或乙酸乙酯溶液中其衰减速度随甲基丙烯酸甲脂浓度呈直线地增大。 |
| 2. | Global exponential stability of hopfield neural networks with time - varying delay and the estimation of decay rate
神经网络的全局指数稳定性及衰减速度估计 |
| 3. | The effect of variation in surge shaft section size upon the reflection of water hammer pressure and the speed of quality fluctuation attenuation
调压井断面尺寸变化对水锤压力反射及质量波动衰减速度的影响 |
| 4. | The calculation shows that the attenuation of hydraulics oscillation relates to power , but other kinetic characteristics don ' t change with work point greatly
通过计算表明，其水力振荡衰减速度与出力有关，而系统的其他运动特性随工况变化较小。 |
| 5. | The c . e . in both 2d and 3d problem increase the lifting forces , the c . e . in 3d problem decreases the " drag coefficients , but the c . e . in 2d increases the drag a little
波动效应也随着高度的增加而减少，但是和曲壁面效应相比，衰减速度要小得多。波动效应具有减阻作用。 |
| 6. | When the energy converters and the thickness of the steel plate are settled , the attenuation speed of the repetitious pulse reflected wave from the underside is only related to the reflectivity of the reinforced concrete interface
在钢板厚度和换能器确定的情况下,多次脉冲底面反射波的衰减速度只与钢-混凝土界面的反射率有关。 |
| 7. | The useful life curves of gan - based blue led with al2o3 and sic substrate is fit single exponential function [ i = i1 + i2exp ( - t / ) ] . fron this function , we could get aging information of led about stable inteneity 1 , decay intensity i2 and decay time . the novel method of evaluating aging properties of leds was put forward
用单指数函数拟合了发光二极管的光衰减曲线[ i = i _ 1 + i _ 2exp ( t / ) ] ，这个关系式可以给出三个信息：稳定光强、衰减光强、衰减速度，提出了更加合理的评价led老化性能的方法。 |
| 8. | For the other hand , la2o3 additives can improve the activation process and discharge capacity obviously for zinc electrode . the appropriate content of la2o3 additives in zinc electrode can increase the electrochemical properties of the zinc electrode . zn / ni battery with the zinc electrode containing calcium additive showed better discharge capacity and charge - discharge cycling life
以锌酸钙为活性物质的锌电极能得到更高的锌利用率，且以锌酸钙为活性物质的锌镍电池的循环寿命明显优于以氧化锌为活性物质的锌镍电池；两层隔膜的锌镍电池的放电容量高于一层隔膜的锌镍电池，容量衰减速度也明显小于后者。 |
| 9. | Proved with the mixing rate using parameters tw and r ^ it showed that large amplitude and high frequency could greatly enhance the mixing rate . but at large st , the rate of attenuation appears to be in periodic fluctuation at the range of low frequency , so there must be some best partnership of amplitude and frequency
用参数t _ w 、 r _ ( 15 )表征的混合效率表明：总的来说大振幅、高频率有利于混合，但在st较大的低频率区中衰减速度会有周期波动的特性，存在最佳的频率振幅配对。 |
| 10. | In the terms of interpolation , the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character . 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation , the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation , the more number of summation and the more order of interpolation polynomial , the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation , the more of reconstruction time simultaneously , aimed at eliminating the effects of noise contained in projection data , in this paper , author analysis cause and effects of common artifacts . importantly , discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector
在ct图像重建时，选择有限带宽窗有较好的空间分辨率，三角形窗有较好的密度分辨率，选择余弦窗则使得空间分辨率与密度分辨率的折衷；从窗函数的频谱角度来讲，可以用于图像重建的一个良好的卷积窗函数应该具备以下条件： ( ? )小的3db带宽b ，即最小的主瓣宽度； ( ? )最小的旁瓣最大峰值a ； ( ? )最大的旁瓣峰值衰减速度d ；就内插函数而言，临近点内插与线性内插重建图像噪声大，但有较好的边缘与细节； 4 4三次内插、三次b -样条与四次拉格朗日多项式内插图像平滑，局部特性较好。 |
