Performance requirements and test methods of erbium - doped fiber - amplifier for single - channel applications 單波道用摻鉺光纖放大器性能要求和試驗方法
Shan bo ( 1964 ) , male , professor , doctoral supervisor , phd . , school of journalism & communication , wuhan university , majoring in comparative journalism 單波( 1964 ) ,武漢大學新聞與傳播學院教授,博士生導師,哲學博士,主要從事比較新聞學研究。
Compared with the three row tubes and single wave belt which is the old production of the baling factory , the heat transfer capacity of the single row tube and double waves belt can increase 7 單排雙波帶與八菱廠老產品三排單波帶相比散熱量q可增加到7 . 5左右,風阻減小到13 . 8左右。
Meanwhile , the application of wdm inevitably steered manufacturers to the research and development of high - end tdm products . in that scenario , nortel shut down its legacy spc production lines and turned itself into a next - generation equipment provider . alcatel came up with its p3 star broadband exchange 波分復用的開發和應用必然引導傳統電信制造商集中人才開發tdm的高端產品,于是北電放棄了傳統的程控電話交換機的制造,投入下一代產品的研制與推廣,阿爾卡特也推出了p3星寬帶交換機,西門子、朗訊、 ciena 、中興、華為等都聚集了大量技術人才,使基于光單波2
In practice , changing the belt wavelength , comparing the heat transfer performance of the single row tube and single wave belt with the single row tube and double waves belt , double row tubes and double waves belt , three row tubes and single wave belt , i draw a conclusion that the single row tube and double waves belt is the best 在實踐上,通過改變翅片波距w ,比較單排單波帶、單排雙波帶、雙排雙波帶及三排單波帶散熱器的傳熱性能,得到單排雙波帶傳熱效果最佳的結論。