In order to overcome the low precision and weak applicability problems of the current municipal water network state simulation model, the water network structur
In this study, Nocolok eutectic flux,used widely in the process of the brazing of aluminum and its alloy, was prepared by the reaction between Al(OH)3/KOH resol
Quasi-phase-matching (QPM) periodical poled LiNbO3(PPLN) is designed and successfully fabricated to enable second harmonic generation(SHG).The samples were Z-cu