Mechanical-thermal coupling of carbon fiber/aluminum/silicone foams under axial loading

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110201 - 110201

Опубликована: Март 1, 2025

Язык: Английский

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0-to-270° wide pattern reconfigurable antenna using 3D-Printed single quasi-yagi antenna with shape memory hinge

Virtual and Physical Prototyping, Год журнала: 2025, Номер 20(1)

Опубликована: Март 4, 2025

This study presents a 0-to-270° wide-pattern reconfigurable antenna incorporating shape memory hinge. The substrate is 3D-printed using polymer (SMP) and high-temperature filaments, with stretchable silver ink applied via screen printing. To enable reconfiguration in response to thermal stimuli, the folding section fabricated from SMP. Leveraging end-fire radiation characteristics of quasi-Yagi antenna, hinge adjusts direction. antenna's performance was evaluated at angles −180°, −90°, 0°, 90°. In flat position (0°), measured −10 dB bandwidth ranges 4.26 5.48 GHz, peak gain 4.01–7.49 dBi. bandwidths α = 90° are 4.22–5.45, 4.26–5.47, 4.28–5.54 respectively, corresponding gains 3.22–6.72, 4.52–7.07, 5.01–7.24 These results demonstrate stable frequency across different angles. With its straightforward design fabrication process, proposed enables beam direction adjustment over wide angular range, offering novel approach pattern antennas.

Язык: Английский

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Multi-dimensional synergistic force sensor for pulsation signal detection

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110274 - 110274

Опубликована: Апрель 1, 2025

Язык: Английский

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Progressive DNN-metaheuristics for programmable broadband mechanical metamaterial absorbers design

International Journal of Mechanical Sciences, Год журнала: 2025, Номер unknown, С. 110297 - 110297

Опубликована: Апрель 1, 2025

Язык: Английский

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