The trigger voltage walk-in effect has been investigated by designing two different laterally diffused metal–oxide–semiconductor (LDMOS) transistors with an e
As a kind of abnormal natural gas formed with special mechanism, the deep-basin gas, accumulated in the lower parts of a basin or syncline and trapped by a tig
By studying the characteristics of current crustal motion by using the ITRF97 station velocity ectors, it has been found that the ITRF97 station velocity vecto
A 2.4-m-long core was extracted from Diaojiao Lake (41?8′N, 112?1′E) at the foot of the northern part of Daqingshan Mts. High-resolution pollen analysis resul