| 1. | The change of rotation angle for bicainvig and gdybiig crystal at oblique incidence
晶体旋光角变化的研究 |
| 2. | 0 , the correlation coefficient it the highest and also sensitive to the change of azimuth angle . it is unfavorable to retrieve
而顺垄扫描则相关系数最高，且对方位角变化敏感，不利于 |
| 3. | The effects of r / h ratio , l / r ratio and cone angle on the dynamic response of the conical shells are discussed in this section
分析了圆锥壳结构的径厚比、长径比及锥角变化对结构应力响应的影响。 |
| 4. | The formulae for calculating the bend radius of neutral plane and the decrement of bend angle after springback were derived by considering the deformation after unloading
依据卸载变形的分析计算，推导出回弹后中性层弯曲半径及弯曲角变化量的计算公式。 |
| 5. | To detect the micro particles of metal is based on the phenomenon that when a metal micro particle passes through an electromagnetic field with constant speed the receiving carrier phase is changed
根据电磁场中恒速通过金属微粒会引起接收载波信号相角变化这一现象来检测金属微粒。 |
| 6. | The pump wheels , turbine wheels , and stators generated by the different blade parameter profiles were compared and the fundamental law of the converter performance versus the blade angle profile was derived
通过对不同参数变化规律生成的泵轮、涡轮、导轮的叶型进行对比分析，总结出液力变矩器叶片角变化对液力变矩器性能影响的基本规律。 |
| 7. | The full flow field characteristics of a supersonic inlet are illustrated at design conditions ; the influence of attack angle on flow field of the inlet is investigated ; b - spline theory is used to model the inlet with attack angle
给出了设计状态下进气道内外流场特征；分析了攻角变化对进气道流场的影响；以数值仿真结果为基础，利用b样条理论建立了反映攻角、马赫数及可调斜板角度变化的超声速进气道数学模型。 |
| 8. | To corner feature , both gradient magnitude change and direction change of gradient vector are discontinuity in a local image neighborhood , hence gradient - direction variation and gradient magnitude are used as another decision rule of the corner detection to improve antinoise
为了提高抗噪声,根据角特征不仅灰度变化是不连续的,且相对周围其他点的梯度方向也是不连续的,提出利用梯度角变化和梯度幅值作为角特征检测的另一个准则。 |
| 9. | At last with the prototype of the vertical - axis cycloid turbine , the optimal method and its mathematical model based on conjugate gradient method are presented in order to enhance the energy conversion coefficient . such optimal results as the energy conversion and the relation between attack angle and azimuth angle are given with particular analysis to sum up the reason of the improved performance of the turbine
最后以竖轴直叶摆线式水轮机为优化原型，提出了一种水轮机水动力性能的优化计算方法，建立了数学模型，运用共轭梯度法进行优化设计，以提高水轮机的能量利用率为目标，给出了优化的叶片攻角变化规律、能量利用率结果，探讨了能量利用率提高的原因。 |
| 10. | But there are still many things need to do . to improve the situation , under the direction of my teacher , i began to observe the zenith luminance of clear sky and overcast sky . and after analyzing the observed data , i drew the zenith luminance in beijing
虽然如此，通过对北京地区晴天和阴天天顶亮度的观测，仍可以得到北京地区晴天和阴天天顶亮度随太阳高度角变化的规律，从而得到天顶亮度值，将其代入cffi标准晴天和阴天天空亮度公式后得到北京地区的晴天和阴天天空亮度绝对值。 |
