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This is to certify that your paper entitled «A Coupled B-Spline Based Multi-Step Method and Differential Quadrature for 2D Transient Heat Transfer Analysis of FG Truncated Cone» was indexed with 13 pages, in the CIVILICA citation database, code COI:OGPC02_031, after evaluation and approval of the referees of the "2nd Biennial Oil, Gas and Petrochemical Conference (OGPC 2018) held in Bushehr 2018.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.