Most-cited Engineering papers of 2019, with free PDFs

The 25 most-cited Engineering research papers published in 2019, ranked by citations in OpenAlex, with their original abstracts and free PDFs where available.

1. Dynamic Graph CNN for Learning on Point Clouds
   Yue Wang, Yongbin Sun et al. · 2019 · 7,095 citations · Free PDF
2. A Vision of 6G Wireless Systems: Applications, Trends, Technologies, and Open Research Problems
   Walid Saad, Mehdi Bennis et al. · 2019 · 4,981 citations · Free PDF
3. The role of renewable energy in the global energy transformation
   Dolf J. Gielen, Francisco Boshell et al. · 2019 · 4,976 citations
4. Intelligent Reflecting Surface Enhanced Wireless Network via Joint Active and Passive Beamforming
   Qingqing Wu, Rui Zhang · 2019 · 4,778 citations
5. Towards Smart and Reconfigurable Environment: Intelligent Reflecting Surface Aided Wireless Network
   Qingqing Wu, Rui Zhang · 2019 · 4,443 citations
6. Digital Twin in Industry: State-of-the-Art
   Fei Tao, He Zhang et al. · 2019 · 4,385 citations
7. Wireless Communications Through Reconfigurable Intelligent Surfaces
   Ertuğrul Başar, Marco Di Renzo et al. · 2019 · 3,464 citations · Free PDF
8. T-GCN: A Temporal Graph Convolutional Network for Traffic Prediction
   Ling Di Zhao, Yujiao Song et al. · 2019 · 3,368 citations · Free PDF
9. Halide Perovskite Photovoltaics: Background, Status, and Future Prospects
   Ajay Kumar Jena, Ashish Kulkarni et al. · 2019 · 3,105 citations
10. Wireless Communications and Applications Above 100 GHz: Opportunities and Challenges for 6G and Beyond
    Theodore S. Rappaport, Yunchou Xing et al. · 2019 · 2,616 citations
11. 6G Wireless Networks: Vision, Requirements, Architecture, and Key Technologies
    Zhengquan Zhang, Yue Xiao et al. · 2019 · 2,585 citations
12. Unmanned Aerial Vehicles (UAVs): A Survey on Civil Applications and Key Research Challenges
    Hazim Shakhatreh, Ahmad Sawalmeh et al. · 2019 · 2,508 citations · Free PDF
13. Lithium-ion batteries: outlook on present, future, and hybridized technologies
    Taehoon Kim, Wentao Song et al. · 2019 · 2,500 citations
14. A Survey of Indoor Localization Systems and Technologies
    Faheem Zafari, Athanasios Gkelias et al. · 2019 · 2,474 citations
15. Reactive Oxygen Species (ROS)-Based Nanomedicine
    Bowen Yang, Yu Chen et al. · 2019 · 2,452 citations
16. Deep learning in remote sensing applications: A meta-analysis and review
    Lei Ma, Yü Liu et al. · 2019 · 2,434 citations
17. The Roadmap to 6G: AI Empowered Wireless Networks
    Khaled B. Letaief, Wei Chen et al. · 2019 · 2,236 citations · Free PDF
18. Issues and opportunities facing aqueous zinc-ion batteries
    Boya Tang, Lutong Shan et al. · 2019 · 2,202 citations
19. Energy Minimization for Wireless Communication With Rotary-Wing UAV
    Yong Zeng, Jie Xu et al. · 2019 · 2,200 citations
20. Rare earth elements: A review of applications, occurrence, exploration, analysis, recycling, and environmental impact
    Vysetti Balaram · 2019 · 2,193 citations
21. An Overview on 3D Printing Technology: Technological, Materials, and Applications
    N. Shahrubudin, T.C. Lee et al. · 2019 · 2,053 citations
22. The History of Nanoscience and Nanotechnology: From Chemical–Physical Applications to Nanomedicine
    Samer Bayda, Muhammad Adeel et al. · 2019 · 2,023 citations · Free PDF
23. Long-life and deeply rechargeable aqueous Zn anodes enabled by a multifunctional brightener-inspired interphase
    Zhiming Zhao, Jingwen Zhao et al. · 2019 · 2,021 citations
24. Imperfections and their passivation in halide perovskite solar cells
    Bo Chen, Peter Neil Rudd et al. · 2019 · 1,973 citations
25. Quantifying the triboelectric series
    Haiyang Zou, Ying Zhang et al. · 2019 · 1,934 citations · Free PDF

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