| 1. | Study of bicycle conversion coefficient on urban road section
城市道路路段自行车换算系数研究 |
| 2. | Mass energy conversion coefficient
质量能量换算系数 |
| 3. | Dose conversion coefficients for use in protection against neutron radiation
用于中子辐射防护的剂量转换系数 |
| 4. | K conversion coefficient k
壳层电子转换系数 |
| 5. | Volume conversion coefficient
容积换算系数 |
| 6. | Based on these results of tests , new conversion curves are presented with consideration of the effect of rotary speed on conversion coefficient
将这种方法的实测结果同苏联、美国、德国的粘度换算方法进行了比较。 |
| 7. | Neutron dosimetry - part 2 : conversion coefficients for the calculation of ambient and personal dose equivalent from the neutron fluence , and correction factors for radiation protection devices
中子剂量学.第2部分:用中子流量计算环境和人员剂量等 |
| 8. | At last , based on the theory of cubature , the multivariate linear regression equations are built up , and the traffic conversion coefficient of the controlled intersection junction are deduced
最后，以容量法为理论基础，建立多元线性回归方程式，推导出信号交叉口车辆折算系数。 |
| 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. | We analyze the generation of external cavity frequency - doubling with knbo3 crystal theoretically . in order to get the second - order nonlinear conversion from 858nm to 429nm with knbo3 , we use non - critical type - i phase - matching to avoid the walk - off effect the corresponding optimum focusing condition is as followings : double refraction parameter b = 0 , focus parameter = 2 . 84 , optimum phase mismatch parameter = 0 . 574 . based on the theoretical analysis and numerical calculations , we obtain the ideal nonlinear conversion coefficient about 1 . 45 % / w with crystal length of 7mm and 2 . 07 % / w with crystal length of 10mm at the phase - matching temperature around 23 . 50c
根据对其倍频原理及性能的分析讨论，在用该晶体完成波长从858nm到429nm的二阶非线性转换时，采用非临界相位匹配条件(此时无离散效应，对应的双折射参数b = 0 ，共焦长度为= 2 . 84 ，最佳相位失配因子为= 0 . 574 ) ，在相位匹配温度约为23 . 5时，理论上通过计算得到理想情况下非线性转换系数约为1 . 45 / w (长度为7mm ) ， 2 . 07 / w (长度为10mm ) 。 |
