So one study is made on connection and interior angle setting of power directional element in main equipment protection.
分析了主设备保护中功率方向元件的接线方式和内角整定。
参考来源 - 电气主设备继电保护装置的整定计算研究According to the characteristics of handwritten Chinese characters, I developed some new features such as improved directional element feature, stroke sub-area moment, extended circumjacent stroke directional element feature, etc. These features are proved to be effective in experiments.3.
根据手写体汉字的特点，对特征提取进行了分析研究，提出了改进方向线素特征、笔划分区矩特征、扩展周边笔划方向特征等几种新的手写体汉字特征，实验表明所提取的几种特征是有效的。
参考来源 - 基于多层次信息融合的手写体汉字识别研究·2,447,543篇论文数据，部分数据来源于NoteExpress
A new directional element based on the fault component positive sequence reactance (FCPSR) is presented.
提出了基于故障分量正序电抗的方向元件。
The performance of negative sequence directional element widely used in conventional transmission line protection may be affected when it is used in the double transmission lines on the same tower.
由于同杆双回线自身的特殊性，使得在常规线路保护中有着广泛应用的负序方向元件的性能受到影响。
The SH numerical example shows that this new artificial boundary element has a multi-directional transmitting property.
SH波数值分析表明本文有限元模型具有多向波动透射能力。
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