A single-frequency Q-switched Er:YAG polycrystalline ceramic laser is reported for the first time. The 'Ramp–Hold–Fire' injection-seeding technique was employed to obtain single-frequency pulses, with an Er:YAG NPRO as a seed laser. Single-frequency laser operation was obtained with pulse ener...
被引量: 0发表: 2013年 中国文人文化传统的世纪挫折——读长篇小说《世家》 20世纪90年代中国文坛兴起长篇小说创作热,这股热也传到了桂林.迄今为止,我们已读到张宗栻的长篇小说《红土》,《绿岸》,据称沈东子和龚桂华也将有长篇小说问世.值得注... 黄伟林 - 《南方文坛》 被引量: 0发表: 2000年来源...
and also influence of earth magnetism, by detecting moving speed of a moving object utilizing the acceleration thereof. CONSTITUTION:9.10 and 11 are acceleration detectors provided on a moving object, and accelerations are detected from forces applied to movable weights. The detector 9 detects ...