![Energies | Free Full-Text | Numerical Investigations of a Tip Turbine Aerodynamic Design in a Propulsion System for VTOL Vehicles | HTML Energies | Free Full-Text | Numerical Investigations of a Tip Turbine Aerodynamic Design in a Propulsion System for VTOL Vehicles | HTML](https://www.mdpi.com/energies/energies-12-03003/article_deploy/html/images/energies-12-03003-g010-550.jpg)
Energies | Free Full-Text | Numerical Investigations of a Tip Turbine Aerodynamic Design in a Propulsion System for VTOL Vehicles | HTML
![Materials | Free Full-Text | Stiffness Prediction of Connections between CHS Tubes and Externally Welded I-Beams: FE Analyses and Analytical Study | HTML Materials | Free Full-Text | Stiffness Prediction of Connections between CHS Tubes and Externally Welded I-Beams: FE Analyses and Analytical Study | HTML](https://www.mdpi.com/materials/materials-13-03030/article_deploy/html/images/materials-13-03030-g011.png)
Materials | Free Full-Text | Stiffness Prediction of Connections between CHS Tubes and Externally Welded I-Beams: FE Analyses and Analytical Study | HTML
![Hysteresis Behavior of Recentering Diagonal Bracing Steel Frames Using a SMA Wire Bundle | SpringerLink Hysteresis Behavior of Recentering Diagonal Bracing Steel Frames Using a SMA Wire Bundle | SpringerLink](https://media.springernature.com/lw685/springer-static/image/art%3A10.1007%2Fs13296-021-00552-4/MediaObjects/13296_2021_552_Fig15_HTML.png)