carbon composites after heat-treatment

carbon composites after heat-treatment

Journal of Geophysics and Engineering Journal of Geophysics and Engineering (2019) 16, 1010 doi:10.1093/jge/gxz069 Expression of Concern: Applicatio...

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Journal of Geophysics and Engineering Journal of Geophysics and Engineering (2019) 16, 1010

doi:10.1093/jge/gxz069

Expression of Concern: Application of variational mode decomposition to seismic random noise reduction State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing, 18 Fuxue Road, Beijing 102249, People’s Republic of China E-mail: [email protected], [email protected] and [email protected]

Journal of Geophysics and Engineering, Volume 14, Issue 4, Pages 888–899, doi: 10.1088/1742-2140/aa6b28 The Editors-in-Chief have been alerted to concerns of citation stacking in the above paper. The Editors-in-Chief have contacted the authors, who have requested time to address specific concerns. In the interim, this Expression of Concern should be taken to indicate that any claimed discoveries presented in the article named above may not be reliable.

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© The Author(s) 2019. Published by Oxford University Press on behalf of the Sinopec Geophysical Research Institute. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Wei Liu, Siyuan Cao and Zhiming Wang