نتایج جستجو برای: silica source

تعداد نتایج: 454538  

خونساری, سمیرا , فقیهیان, حسین , نصری نصرآبادی, شیما ,

In this research, mesoprous compound MCM-41was synthesized by using CTAB as template and TEOS as silica source. In order to increase the adsorption capacity, the surface of the synthesized adsorbent was modified by 3-aminipropyletrimethoxysilane.The structure of the adsorbent was studied by XRD, IR, BET and TG-DTG techniques. For removal of cerium ion from aqueous solutions, NH2­-MCM-41 adsorbe...

Journal: :Proceedings of the Karelian Research Centre of the Russian Academy of Sciences 2020

2015
Zhao Quan Cunxiao Gao Haitao Guo Ning Wang Xiaoxia Cui Yantao Xu Bo Peng Wei Wei

A type of Tm-doped silica fiber laser with narrow-linewidth and output wavelength near 1750 nm was firstly presented, by using a 1550 nm Er-doped fiber laser pump source and a volume Bragg grating (VBG). By means of a 15 cm Tm-doped fiber, a 400 mW continuous wave (cw) at ~1750 nm with FWHW of ~54 pm was generated, corresponding to an average slope efficiency up to 23.5% with respect to absorbe...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید