A new design method of state selector in direct torque control system

New Method of Direct Torque Control for Large Drive System

大功率系统的直接转矩控制新方法

The solutions describe stokes intensity as a function of inter pulse spacing, distance and zenith angle in a uniform medium and in nonuniform medium ( atmosphere).

给出了在均匀介质和非均匀介质（实际大气）情况下的斯托克斯光强随脉冲间隔、传输距离和天顶角变化的函数关系。

In this paper, based on the analysis of these characteristics, attenuation and turbulence models are established, and the dependence of slant path link on the zenith angle is discussed.

在分析临近空间激光信道的特殊性的基础上，应用信道衰减和湍流模型，探讨斜程信道随天顶角的变化规律。

The analysis of spherically layering calculated results shows that the variation of atmospheric path delay ( especially wet term) with zenith angle obeys well the secant law.

分析大气球面分层的计算结果可见，干、湿项订正值随卫星天项角（≤75°）的变化可以很好地用Secant律来表示。

Base on these calculations and the surface meteorological parameters, the local year and month correction models of dry delay at the zenith angle of 0 are established by statistical methods.

在此资料基础上，利用地面气象要素建立了大气干延迟的年和分月局地订正模型。

The scattering phase function is represented by means of the analytic Henyey-Green stein function with an asymmetry factor dependent on the incident zenith angle.

散射相函数由解析的Henyey-Greenstein函数表示，其不对称因子也与入射天顶角有关。

In the condition of higher percentage of the direct sunlight, the difference of the mean cosine of different zenith angle is inversed with the wind speed.

太阳直射光比例越高，在风速越小时，不同太阳天顶角情况下的水体表层下行光场平均余弦的差别越大，而风速越大，其差别越小。

The main leaf zenith angle distributions were horizontal and the most leaf azimuth angles were leaning to the south. Application of Azimuth in Orienteering

叶倾角分布主要以水平叶为主；按方位角行进在定向越野中的应用

Along with the increase of the zenith angle and height above ground of an optical transmitter, the extent of the time-averaging effect decreases.

随着接收终端离地高度和天顶角的增大，大气闪烁时间平滑作用降低。

Daily variations of UV B radiation are greatly controlled by the solar zenith angle ( SZA), ozone and the sky conditions.

云和太阳高度角控制着UV－B辐射通量日变化过程。

When the sun zenith angle is small, a less angular sampling interval in zenith angle is needed in the hot spot area.

而当太阳天顶角较小时，必须在热点方向附近减小角度采样间隔。

The results are as follows: ( 1) Solar incident angle, especially zenith angle can change the shape of BRDF.

具体研究结果如下：（1）太阳入射角度，特别是太阳天顶角能改变水体二向反射分布函数的形状。

G silicon carbide waterproof abrasive paper were made within the-15 °-55 ° of reflectance zenith angle.

G防水研磨金刚砂在反射天顶角-15°～55°范围进行了测试研究。

The results show that the detectable stellar magnitude limits linearly increase with observing height and solar zenith angle.

结果表明：可探测星等极限值随观测高度和太阳天顶角的增加接近线性增加；

Dependence of infrared emissivity on view zenith angle for natural ground surfaces

地面热红外发射率的天顶角变化效应

Some results of high energy cosmic ray, such as the zenith angle distribution, the decay length in the air, the energy spectrum and the vertical intensity of hadron and γ-ray have been presented.

由此给出了天顶角分布、大气中衰减长度、积分能谱和垂向流强等，为研究宇宙线超高能相互作用提供了信息。

As expected, the measured brightness temperatures change with view zenith angle, view azimuth angle, and the Sun position.

地面亮度温度的测量值随观测天顶角、方位角和太阳位置而改变。

She won't wear a hat even in winter in case her hair is squashed down by it.

即使在冬天她也不会戴帽子，她怕头发被帽子压瘪了。

London used to have dense fogs in winter.

伦敦过去在冬季常有浓雾。

This type of weather is apt to be more common in winter.

这种天气在冬季往往更为常见。