The isolated properties of the zero and singular points for N-regular functions are investigated. 研究了N正则函数的零点和奇点的孤立性,并对它的孤立奇点进行了分类。
A new method for the selective leakage protection system of high-voltage distribution network for mine using isolated neutral-point to ground & zero sequence current compensation method is presented in this paper. 本文提出了在中性点对地绝缘方式的矿井高压电网中采用零序电流补偿法实现选择性漏电保护新方法。
The above proposed methods all require several groups of measurements to construct the Isolated Substructure, and in addition demand the zero initial structural state. 前面提出的几种方法都需要利用测量多组响应来构造约束子结构,而且要求结构的初始状态为零。
Conclusions After the heart was isolated, the PCr level rapidly decreased and was reduced to zero in 2-3 hours whereas ATP was not depleted until 4-6 hours after isolation. 结论在心脏离体后2~3小时,心肌PCr迅速下降至零,而ATP持续到心脏离体4~6小时后耗竭。
It is well known that the vibrational spectrum of an isolated nanocrystal is discrete with an energy gap in the low-energy in contrast with that of the same bulk which has a continuous spectrum down to zero. 孤立的纳米晶体波谱是离散的,并且低能声子波谱存在一个能隙而块体的声子波谱一直到零都是连续的。