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    Stability analysis of nano-devices: Exercise-mediated effects on nanodevice stability in drug delivery applications
    (2025-05-25)
    Huanan Chen
    ;
    HABIBI, MOSTAFA  
    ;
    Jiahao Zhu
    ;
    Ameni Brahmia
    ;
    Wnag, Dan
    The use of sophisticated materials and nanoscale structures in the design of sports equipment is recognized as a key strategy for boosting athletic performance. The study of spinning small-scale structures, such as nanobeams and nanotubes, is centered on their potential use in the creation of next-generation sporting equipment. The distinct characteristics of these constructions, such as improved stiffness, vibration damping, and longevity, play an important role in improving the efficiency, control, and responsiveness of various athletic equipment. Nanomaterials are used in tennis rackets, golf clubs, and hockey sticks to efficiently eliminate undesired vibrations while increasing energy transfer upon impact, boosting player comfort and performance. These structures’ rotational dynamics closely resemble real-world circumstances encountered by sports equipment, such as the swinging motion of a bat and the bending of a ski. The nonlocal strain gradient theory provides useful insights for improving material behavior in dynamic loading situations, notably in terms of size effects at the nanoscale. Case studies and practical examples demonstrate how these innovations support athletes in improving their power, accuracy, and the longevity of their equipment. A connection exists between nanotechnology and sports engineering, facilitating the development of lighter, stronger, and more efficient technologies that enhance athletic performance capabilities. The significance of diverse methods for enhancing sports technology is emphasized, providing advantages for both elite athletes and recreational users.
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    Wave responses in seismic FGM concrete nanobeam using deep neural network
    (2025-06-25)
    Yong Huang
    ;
    Bo Zhang
    ;
    HABIBI, MOSTAFA  
    ;
    Mohamed Hechmi El Ouni
    In the current study, we investigate the vibration of a nano-scale beam structure composed of bi-directionally functionally graded concrete. We employ a dual approach, combining mathematical structural modeling with deep neural network analysis, to determine the natural frequency of the nanobeam. The concrete is assumed to be graded along the beam’s axis and transverse direction, following a power-law model. We utilize Timoshenko beam theory (TBT) and nonlocal stress-strain gradient relations to describe the nanobeam’s displacement field. Hamilton’s principle is used to account for external forces and boundary conditions. A deep neural network is trained to predict the natural frequency with varying error margins. The governing equations are solved using the differential quadrature numerical method, and the results are validated against existing literature. This work introduces novelties in three key areas: 1) a model for bi-FG concrete nanobeams under in-plane loading, 2).
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    Advancing sports equipment performance: Leveraging rotating small-scale structures for enhanced athletic tools
    (2025-05-25)
    Yuan Wan
    ;
    Guizhi Zhang
    ;
    Zimin Chang
    ;
    HABIBI, MOSTAFA  
    ;
    Albaijan, Ibrahim
    The use of sophisticated materials and nanoscale structures in the design of sports equipment is recognized as a key strategy for boosting athletic performance. The study of spinning small-scale structures, such as nanobeams and nanotubes, is centered on their potential use in the creation of next-generation sporting equipment. The distinct characteristics of these constructions, such as improved stiffness, vibration damping, and longevity, play an important role in improving the efficiency, control, and responsiveness of various athletic equipment. Nanomaterials are used in tennis rackets, golf clubs, and hockey sticks to efficiently eliminate undesired vibrations while increasing energy transfer upon impact, boosting player comfort and performance. These structures’ rotational dynamics closely resemble real-world circumstances encountered by sports equipment, such as the swinging motion of a bat and the bending of a ski. The nonlocal strain gradient theory provides useful insights for improving material behavior in dynamic loading situations, notably in terms of size effects at the nanoscale. Case studies and practical examples demonstrate how these innovations support athletes in improving their power, accuracy, and the longevity of their equipment. A connection exists between nanotechnology and sports engineering, facilitating the development of lighter, stronger, and more efficient technologies that enhance athletic performance capabilities. The significance of diverse methods for enhancing sports technology is emphasized, providing advantages for both elite athletes and recreational users.