In this paper, Er/Yb co-doped fiber amplifiers(EYDFAs) with an Yb-band fiber Bragg grating(FBG) at the pump end to impro......

Reliability model of a mechanical product system will be newly reconstructed and maintenance cost will increase because ......

医生职业精神在现代医疗中具有重要的地位和作用。患者对医生职业精神的认可是衡量医生职业精神的重要指标，医生和医学生对职业精神......