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Correction to Water 2019, 11(7), 1461.
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Correction

Correction: Combination of Discrete Element Method and Artificial Neural Network for Predicting Porosity of Gravel-Bed River. Water 2019, 11(7), 1461

1
Institute of Hydraulic and Water Resources Engineering, Technische Universität München, Arcisstrasse 21, D-80333 München, Germany
2
Faculty of Mechanical Engineering, Thuyloi University, 175 Tay Son, Dong Da, 100000 Hanoi, Vietnam
*
Author to whom correspondence should be addressed.
Water 2020, 12(2), 408; https://doi.org/10.3390/w12020408
Submission received: 8 October 2019 / Accepted: 18 October 2019 / Published: 3 February 2020
(This article belongs to the Section Hydraulics and Hydrodynamics)
We have found one error in Equation (2) (duplicate with Equation (1)) in our paper published in the Water Journal [1]:
m i d u i dt   = m i g + k f i , k + f i , f
Equation (2) is corrected to:
I d ω i dt = d i 2 k ( n i , k × f i , k )
These changes have no material impact on the conclusions of our paper. We apologize to our readers.

Conflicts of Interest

The authors declare no conflict of interest.

Reference

  1. Bui, V.H.; Bui, M.D.; Rutschmann, P. Combination of Discrete Element Method and Artificial Neural Network for Predicting Porosity of Gravel-Bed River. Water 2019, 11, 1461. [Google Scholar] [CrossRef] [Green Version]

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MDPI and ACS Style

Bui, V.H.; Bui, M.D.; Rutschmann, P. Correction: Combination of Discrete Element Method and Artificial Neural Network for Predicting Porosity of Gravel-Bed River. Water 2019, 11(7), 1461. Water 2020, 12, 408. https://doi.org/10.3390/w12020408

AMA Style

Bui VH, Bui MD, Rutschmann P. Correction: Combination of Discrete Element Method and Artificial Neural Network for Predicting Porosity of Gravel-Bed River. Water 2019, 11(7), 1461. Water. 2020; 12(2):408. https://doi.org/10.3390/w12020408

Chicago/Turabian Style

Bui, Van Hieu, Minh Duc Bui, and Peter Rutschmann. 2020. "Correction: Combination of Discrete Element Method and Artificial Neural Network for Predicting Porosity of Gravel-Bed River. Water 2019, 11(7), 1461" Water 12, no. 2: 408. https://doi.org/10.3390/w12020408

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