矩

A simulation model was set up. Simulation outcome shows that compensating torque can be rapidly regulated according to demands of dynamic loading.Stable-state error is less than one percent,and dynamic error is much more less than that of traditional PID.In the

建立了仿真实验模型，运行结果表明：补偿转矩能够根据动态加载的要求进行快速调整；稳态运行速度误差小于1%，动态误差远远小于传统PID控制。

In the investigation of micromagnetism, in-plane magnetoresistance and in-field magnetic force microscopy on a series of permalloy planar wires were performed. Here, the wire length and thickness are kept constant, 20μm and 30nm, respectively. The width of the wire spans from 10 to 0.1μm. The magneto-transport behavior and magnetic configuration are quite different regarding their widths, corresponding to the aspect ratio.

在研究微磁学时，我们以平行膜面磁阻的量测和施加磁场下观察磁区的磁力显微来从事一系列镍铁合金毫微米线的磁矩翻转研究，这一系列毫微米线的线长和厚度分别固定为20微米和30奈米，线宽则由10微米变化至0.1微米，线宽的改变将造成磁电传输行为和磁区结构有截然不同的结果。

Cogging torque is one of the main concerns of permanent magnet motor.

齿槽转矩的削弱是永磁电机的难点和研究重点之一。

Permanent magnet synchronous motor control in a non-linear, to...

永磁同步电动机在控制上的非线形问题，转矩控制问题，很有参考价值。

Many factors are related to this fluctuate, one of them is the permanent magnet flux fluctuate.

造成转矩波动的因素有很多，其中永磁体磁链波动是一个重要原因。

According to the construction of modern stepping motors with rectangle shape, the yoke permeance concept has been proposed.

对样机的保持转矩的计算和实验的对比表明，该方法具有较高的求解精度，同时又省去了经验的修正。

Especially, as an important consequence, the light intensity on the transverse plane perpendicular to the propagation axis is given.

作为一个重要的特例情况，文中还给出了横截面上的光强公式，这个结果可用来对非傍轴光束的强度二阶矩及M2因子等物理量进行研究。

For single wall carbon nanotubes, we study the nonmagnetic and magnetic impurity effects on zigzag nanotubes by Green's function perturbation method and found that the impurity effects are different for semiconducting and metallic nanotubes. Arbitrary potential can induce a bound state in semiconducting nanotubes, and resonance state in metallic tubes.

在我们的工作以前，共振态对系统磁性的贡献往往被忽略，实验上观测到的掺非磁性杂质的高温超导的磁化率呈居里—外斯形式完全归结为杂质诱导出的局域磁矩，尽管可以解释磁化率，但与一些实验产生矛盾。

In the system of A-D phenothiazine derivatives, the transition dipole moments M flu were determined mainly by direct interactions between the solvent-equilibrated fluorescence 1CT state and ground state because of their lack of significant change with increase of the solvent polarity.

在此吩噻嗪衍生物的体系里，荧光过渡态偶极矩主要由溶剂平衡的电荷转移态和基态间的作用所决定，因为它在不同极性的溶剂中缺乏明显的改变。

And the trend of intra-molecular charge transfer and possible photopolymerization mechanisms is explained systematically.

理论计算在GAUSSIAN-98程序包上完成，分子的几何结构在杂化的密度泛函理论B3LYP水平上优化，分子的激发态能量和跃迁偶极矩在含时密度泛函理论水平上计算。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。