系数环

The experimental methods and data processing for measuring fric- tion factor by means of upsetting ring have been summarized and com- pared in this paper.

本文对圆环镦粗法测定摩擦系数的实验方法和处理实验数据的各种方法进行了总结比较。

Furthermore, the process of proportion resistance in the feedback circuit is changed, and the change of sampling voltage with sampling resistance is compensated with resistor. The impact of environment temperature on loading capacity and peak current is reduced.

此外，对反馈环中的比例电阻采用不同的工艺制作，通过电阻的温度系数补偿由采样电阻随温度变化所造成的采样电压的变化，减小温度对电路的带负载能力和峰值电流的影响。

In this thesis, the design scheme of a DSP-controlled inverter applied in mobile generator is presented at the beginning and then the design method of control system is mainly discussed. Equivalent output impedance model of instantaneous voltage and current closed-loop controlled inverter is established on the foundation mentioned above. How the values of LC filter, parameters of PI regulator and feedback coefficient etc. affect the external characteristic of inverter is analyzed in detail. Non-linear factor of inverter are also discussed and corresponding solutions are put forward.

本文首先给出了移动发电机DSP控制逆变模块的设计方案，着重讨论了控制系统的设计方法，在此基础上建立了电压电流瞬时值双闭环控制的逆变模块等效输出阻抗模型，对滤波器LC值、PI调节器参数和反馈系数等各项因素对逆变模块输出外特性的影响进行了详细分析，并探讨了逆变模块中非线性因素对输出波形的影响，提出了相应的解决方案。

Calculating formula of wave impedance is obtained by main values of the inverse tangent function of phase_shift at two neighboring frequencies and the corresponding integral character of phase_shift is denoted as the convergent criterion of wave impedance inversion.

利用复合反射系数中多个频率点的相移反正切函数主值，给出了波阻抗的计算公式，并把套管-地层环空间介质中波的相移的整、实特性作为波阻抗反演收敛的判据。

By circumferential and meridional pressure correlation study, we point out that, the correlation between windward area and leeward area is very small.

计算了风压沿环向和子午向的相关性系数，发现迎风区与尾流区内的各点风压相关性很低。

He also pointed out that if too many mutual insurance companies, formed a security ring, then the risk factor will be greatly enhanced.

他还指出，如果太多的相互保险公司，形成了安全环，则风险系数将大大提高。

The apparent partition coefficient versus pH profiles had the shape of a parabolic curve in an n-octanol/buffer system, and reached the peak around pI for GPFX, CPFX and HSR-903, respectively.

在正辛醇／水系统中，格帕沙星、HSR-903和环丙沙星的表观分配系数—pH值曲线呈现钟形形状，在等电点下，log 〓分别达到最大值。

Key words : South-to-North Water Transfer; swelling rock; permeability; Guelph Permeameter

对比分析采用 Guelph 渗透仪和双套环对黏土岩和泥灰岩测得渗透系数。

Finally, we simulate the relationship of the residuary intensity modulation coefficient and the scale factor stability of fiber-optic gyro by using the Matlab simulation tool.

最后，对所得出的残余强度调制系数与光纤陀螺标度因数稳定性的关系进行了Matlab 仿真，通过仿真结果，更进一步说明残余强度调制对数字闭环光纤陀螺标度因数稳定性的影响。

Finally, we simulate the relationship of the residuary intensity modulation coefficient and the scale factor stability of fiber-optic gyro by using the Matlab simulation tool. The simulation results further explain the effect of residuary intensity modulation on digital closed-loop fiber-optic gyro scale factor stability.

最后，对所得出的残余强度调制系数与光纤陀螺标度因数稳定性的关系进行了Matlab仿真，通过仿真结果，更进一步说明残余强度调制对数字闭环光纤陀螺标度因数稳定性的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。