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. 2019 May 23;5(5):e01627. doi: 10.1016/j.heliyon.2019.e01627

Fig. 5.

Fig. 5

Relationship between filling ratios and effectiveness (Parametthanuwat et al. [30]).

Reprinted from Nanoscale Research Letters, 6:315, Thanya Parametthanuwat, Sampan Rittidech, Adisak Pattiya, Yulong Ding and Sanjeeva Witharana, Application of silver nanofluid containing oleic acid surfactant in a thermosyphon economizer, Pages No.08, Copyright (2011), with permission from Springer Nature