Open Access
Issue
JNWPU
Volume 37, Number 2, April 2019
Page(s) 273 - 282
DOI https://doi.org/10.1051/jnwpu/20193720273
Published online 05 August 2019

© 2019 Journal of Northwestern Polytechnical University. All rights reserved.

Licence Creative CommonsThis 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 use, distribution, and reproduction in any medium, provided the original work is properly cited.

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