负晶

β-BaB2O4晶体中包裹物和负晶结构

Study on Inclusions and Negative Crystal Structure in β - BaB_2O_4 Crystal

平面M-T内，在较大负晶场和比率α为正时，磁化曲线表现出不连续性，并在一个受限制的磁场小区域内呈现出垂直跳跃。

In M-T plane , the magnetization curves show a discontinuity and take on a vertical leap in a restricted small range of magnetic field when negative crystal field is larger and the ratio α is positive (α > 0 ) .

氟化钡晶体的结晶习性与负晶结构

Growth Habit and Negative of BaF_2 Crystal

在晶场稀疏情况下，负晶场方向存在临界温度的峰值，正方向可出现重入现象。

Under crystal field dilution condition , there exists the peak value of critical temperature in the direction of negative crystal field and reentrant phenomena in the direction of positive critical field .

具有转速负反馈晶闸管调速系统的模糊控制

Thyristor Direct Current Timing System of the Take on Rotate Speed Negative Feedback on the Fuzzy Control

研究基于模糊控制的具有转速负反馈的晶闸管直流调速系统。

Thyristor direct current timing system of the base on fuzzy control and take on rotate speed negative feedback is discussed in this paper .