In this investigation,hybrid laser/arc welding (HLAW) was employed to join 8-mm-thick high-strength quenched and tempere......

目的:评价平台转换连接与对接连接种植体即刻功能性负重后短期内的边缘骨丧失及牙龈变化情况。方法:选择上下颌前牙为观察对象,拔......

利用选择外延技术研制了1.5μm DFB激光器和自对准模斑转换器单片集成器件.激光器的上限制层与垂直方向上楔型波导的模斑转换器同......

研究了利用选择外延生长的InGaAsP材料的厚度增强因子和带隙波长的性质，最大的厚度增强因子为2．9。利用选择外延技术研制的DFB激光器......

This paper presents an experimental investigation of laser welding low carbon galvanized steel in butt-joint configurati......