The publishing and editorial teams would like to thank the following, for their invaluable service as 2021 reviewers for this journal. We are very grateful for the contributions made. With their help, the journal has been able to publish such high-quality articles:
- Ab Rashid, Mohd Fadzil Faisae
- Agarwal , Ashish
- Ahmad Shauri, Ruhizan Liza
- Ahmed, Aram
- Ahmed, Nigar
- Aifaoui, Nizar
- Akpınar, Sener
- Al-Khazraji, Huthaifa
- Al-Zuheri, Atiya
- Ali, ZAIN ANWAR
- Alnahhal, Mohammed
- Ammous, Anis
- Babaee Tirkolaee, Erfan
- Bahubalendruni, M V A Raju
- Balachandra, Mamatha
- Baloochian, Hossein
- Bandyopadhyay, Samir Kumar
- Bi, Yunbo
- Bruzzone, Luca
- Butt, Javaid
- Cao, Fangfei
- Cao, Hao
- Cevikcan, Emre
- Chang, Xiao-Heng
- Chang, Yoon Seok
- Chen, Chang
- Chen, Haoyao
- Chen, Hua
- Chen, Jingxiang
- Chen, Yang
- Chen, Ziyang
- Cheng, Chichao
- Cheng, Hong
- Cheng, Hongtai
- Cheng, Hui
- Cheng, Liang
- Cid Galiot, Jonathan Josue
- Cohen, Yuval
- Cong, Ming
- Cosenza, Chiara
- Cui, Guozeng
- D, D .Sathya
- Dai, Yong
- Deng, Yimin
- Dong, Hongli
- Dong, Jiale
- Dong, Yuying
- Doulamis, Nikolaos
- Du, Heng
- Durmusoglu, Mehmet
- Erden, Zuhal
- Faccio, Maurizio
- Fan, Xiumin
- Fan, Yanli
- Fang, Kui
- Fazlollahtabar, Hamed
- Feng, Li
- Feng, Zhixin
- Foumani, Mehdi
- Fu, Junling
- Fu, Tianda
- Fukuda, Toshio
- Galizia, Francesco Gabriele
- Gan, Junbao
- Gao, Hongbo
- Gao, Xuejin
- Gao, Yicong
- Gao, Zhenhai
- Garus, Sebastian
- Gebre, Tigist Wolde
- Ghaderi, Aref
- Ghazavi, Nafiseh
- Gomes De Mello, Joao Marcos
- Gu, Haoyuan
- Gu, Quan
- Guo, Daqiang
- Guo, Feiyan
- Guo, Jun
- Guo, Kunlin
- Hajari, Nasim
- Han, Lijun
- Han, Xiaoning
- Han, Yuqi
- Hang, Kaiyu
- Hans, Sikander
- Harada, Kensuke
- Hegab, H.
- Heilala, Juhani
- Hu, Fuwen
- Hu, Hesuan
- Hu, Kun
- Hu, Laihong
- Hu, Yingbai
- Hua, Chengcheng
- Huang, Cong
- Huang, Darong
- Huang, Hai
- Huang, Haiqi
- Huang, Haohui
- Huang, Yichuan
- Ismail, Zul-Atfi
- Jayaram, Sanjay
- Jeyed, Hamze Ahmadi
- Jia, Xiaoliang
- Jiang, Hui
- Jiang, Lei
- Jiang, Wei
- Jiang, Weilai
- Jiang, Yiming
- Jiao, Zunsheng
- Jin, Shangtai
- Junejo, Abdul Khalique
- Kachel, Stanisław
- Kara, Fuat
- Kathirvelan, Jayaraman
- Ke, Yinglin
- Khodaygan, S.
- Khosravani, Mohammad Reza
- Kilikevicius, Sigitas
- Kim, Dongwook
- Kong, Linghuan
- Kumar, Saroj
- Lee, Gilwoo
- Li, Changsheng
- Li, Cheng
- Li, Hua
- Li, Jiahui
- Li, Jie
- Li, Liangfu
- Li, Peng
- Li, Rui
- Li, Shengquan
- Li, Shuang-Gao
- Li, Wenjie
- Li, Xian
- Li, Xin
- Li, Xining
- Li, Yanan
- Li, Yang
- Li, Yuling
- Li, Zhan
- Liang, Jiale
- Liang, Zhang
- Lim, Theodore
- Lin, Jiatai
- Lin, Qingyuan
- Lin, Wei-Chih
- Liu, Chao
- Liu, Hanzhong
- Liu, Hao
- Liu, Jian
- Liu, Kun
- Liu, Liu
- Liu, Nailong
- Liu, Qingsheng
- Liu, Weibo
- Liu, Yinhua
- Liu, Yufei
- Liu, Yufei
- Liu, Zhifeng
- Lu, Bo
- Lu, Yang
- Lu, Yanyang
- Luo, Jing
- Luo, Liang
- Luscher, Anthony
- M, Suresh
- Ma, Chao
- Ma, Ruijun
- Ma, Yue
- Mas, Fernando
- Medellin-Castillo, Hugo
- Mehta, Vishal
- Mei, Biao
- Meng, Qingxin
- Mohapatra, Sanjay
- Montemurro, Marco
- Moon, Dug Hee
- Moshayedi, Ata Jahangir
- Mu, Xiaokai
- Nie, Xuchen
- Oumer, Aliyi
- Pan, Yingnan
- Park, Hyeonjun
- Pattanaik, L. N.
- Peng, Guangzhu
- Peng, Guangzhu
- Peng, Haonan
- Peng, Hui
- Pinarbaşi, Mehmet
- Pogarskaia, Tatiana
- Polini, Wilma
- Qi, Jian
- Qiao, Zhifeng
- Qiu, Yuanying
- Quan, Hao
- Rabbani, Masoud
- Razzoli, Roberto
- Reiff-Stephan, Joerg
- Roshani, Abdolreza
- Roy, Rupam Gupta
- Rusli, Leonard
- Russo, Matteo
- S, Saravana Perumaal
- S, Sarika
- Satoglu, Sule
- Shao, Guangbin
- Sharma, Deepesh
- She, Ziyu
- Shen, Yuxuan
- Shenglan, Liu
- Shi, Chaoyang
- Shirazi, Babak
- Silvetti, Alessio
- Singh, Joginder
- Singh, R
- Siqueira, Hugo
- Song, Kechen
- Song, Yuhua
- Su, Hang
- Sun, Cong
- Sun, Jie
- Sun, Liang
- Sun, Ning
- Sun, Yuxiang
- Suping, Fang
- Tan, Qifan
- Tan, Siqiao
- Tang, Jinjun
- Tang, Qiuhua
- Tao, Wenjin
- Tian, Jinyan
- Trigui, Moez
- Turk, Maja
- Vukelic, Djordje
- Wan, Zhaoliang
- Wang, Aichen
- Wang, Gang
- Wang, Gangfeng
- Wang, Hesheng
- Wang, Huanqing
- Wang, Jinhai
- Wang, Li
- Wang, Peng
- Wang, Shubin
- Wang, Tingting
- Wang, Xingbo
- Wang, Yongliang
- Wang, Yu
- Wang, Yuan
- Wu, Mulun
- Wu, Shiqing
- Wu, Xiaobi
- Wu, Xiaotai
- Wu, Zhigang
- Xia, Pingjun
- Xiao, Bo
- Xiao, Ruihong
- Xin, Bo
- Xing, Yanfeng
- Xu, Chenyang
- Yadav, Ashish
- Yan, Yifang
- Yang, Jing
- Yang, Lie
- Yang, Xianqiang
- Yilmaz, O. F.
- Yong, Zhang
- Young, Ken
- Yu, Xinbo
- Zabihifar, S. H.
- Zeng, Chao
- Zhang, Haili
- Zhang, Jiahao
- Zhang, Longbin
- Zhang, Wei
- Zhang, Yao
- Zhang, Yong
- Zhao, Fuqing
- Zhao, Huimin
- Zhao, Jing
- Zhao, Xingang
- Zhao, Yong
- Zhao, Zhijia
- Zhao, Zhijia
- Zheng, Da-Teng
- Zheng, Wendong
- Zhou, Binghai
- Zhou, Wei
- Zhou, Xuanyi
- Zhou, Zhou
- Zhu, Chengzhi
- Zhu, Wei Dong
- Zijian, Zhang
- 王, 青