DOI QR코드

DOI QR Code

Sport injury diagnosis of players and equipment via the mathematical simulation on the NEMS sensors

  • Zishan Wen (College of Physical Education, Wuhan University of Technology) ;
  • Hanhua Zhong (College of Physical Education, Wuhan University of Technology)
  • Received : 2022.07.13
  • Accepted : 2023.12.29
  • Published : 2024.02.25

Abstract

The present research study emphasizes the utilization of mathematical simulation on a nanoelectromechanical systems (NEMS) sensor to facilitate the detection of injuries in players and equipment. Specifically, an investigation is conducted on the thermal buckling behavior of a small-scale truncated conical, cylindrical beam, which is fabricated using porous functionally graded (FG) material. The beam exhibits non-uniform characteristics in terms of porosity, thickness, and material distribution along both radial and axial directions. To assess the thermal buckling performance under various environmental heat conditions, classical and first-order nonlocal beam theories are employed. The governing equations for thermal stability are derived through the application of the energy technique and subsequently numerically solved using the extended differential quadratic technique (GDQM). The obtained results are comprehensively analyzed, taking into account the diverse range of effective parameters employed in this meticulous study.

Keywords

Acknowledgement

This work was supported by General Project of National Social Science Foundation (Project No:22BTY015).

References

  1. Azimi, M., Mirjavadi, S.S., Shafiei, N. and Hamouda, A.M.S. (2016), "Thermo-mechanical vibration of rotating axially functionally graded nonlocal Timoshenko beam", Appl. Phys. A. 123(1), 104. https://doi.org/10.1007/s00339-016-0712-5.
  2. Cai, L., Yan, S., Ouyang, C., Zhang, T., Zhu, J., Chen, L., Ma, X. and Liu, H. (2023), "Muscle synergies in joystick manipulation", Front Physiol., 14, 1282295. https://doi.org/10.3389/fphys.2023.1282295.
  3. Cao, C., Wang, J., Kwok, D., Cui, F., Zhang, Z., Zhao, D., Li, M.J. and Zou, Q. (2022), "webTWAS: a resource for disease candidate susceptibility genes identified by transcriptome-wide association study", Nucl. Acids Res., 50(D1), D1123-D1130. https://doi.org/10.1093/nar/gkab957.
  4. Cheng, F., Niu, B., Xu, N. and Zhao, X. (2024), "Resilient distributed secure consensus control for uncertain networked agent systems under hybrid DoS attacks", Commun. Nonlinear Sci. Numer. Simul., 129, 107689. https://doi.org/10.1016/j.cnsns.2023.107689.
  5. Cheng, Q., Ali, H.E. and Albaijan, I. (2023), "Optimization of the cross-section regarding the stability of nanostructures according to the dynamic analysis", Adv. Concr. Constr., 15(4), 215-228. https://doi.org/10.12989/acc.2023.15.4.215.
  6. Dai, Y., Jiang, Z., Chen, K.-y., Zuo, D., Ali, H.E. and Albaijan, I. (2023), "Geometry impact on the stability behavior of cylindrical microstructures: Computer modeling and application for small-scale sport structures", Steel Compos. Struct., 48(4), 443. https://doi.org/10.12989/scs.2023.48.4.443.
  7. Dai, Z., Jiang, Z., Zhang, L. and Habibi, M. (2021), "Frequency characteristics and sensitivity analysis of a size-dependent laminated nanoshell", Adv. Nano Res., 10(2), 175. https://doi.org/10.12989/anr.2021.10.2.175.
  8. Di, Y., Li, R., Tian, H., Guo, J., Shi, B., Wang, Z., Yan, K. and Liu, Y. (2023), "A maneuvering target tracking based on fastIMM-extended Viterbi algorithm", Neural Comput. Appl., 1-10. https://doi.org/10.1007/s00521-023-09039-1.
  9. Ebrahimi, F., Shafiei, N., Kazemi, M. and Mousavi Abdollahi, S.M. (2017), "Thermo-mechanical vibration analysis of rotating nonlocal nanoplates applying generalized differential quadrature method", Mech. Adv. Mater. Struct., 24(15), 1257-1273. https://doi.org/10.1080/15376494.2016.1227499.
  10. Ehyaei, J., Akbarshahi, A. and Shafiei, N. (2017), "Influence of porosity and axial preload on vibration behavior of rotating FG nanobeam", Adv. Nano Res., 5(2), 141. https://doi.org/10.12989/anr.2017.5.2.141.
  11. Eringen, A.C. (1983), "On differential equations of nonlocal elasticity and solutions of screw dislocation and surface waves", J. Appl. Phys., 54(9), 4703-4710. https://doi.org/10.1063/1.332803.
  12. Fan, Z., He, Y., Sun, W., Li, Z., Ye, C. and Wang, C. (2023), "Clinical characteristics, diagnosis and management of Sweet syndrome induced by azathioprine", Clin. Experim. Med., 23(7), 3581-3587. https://doi.org/10.1007/s10238-023-01135-9.
  13. Fu, L., Li, J., Yang, J., Liu, Y., He, C. and Chen, Y. (2023), "Purification process and reduction of heavy metals from industrial wastewater via synthesized nanoparticle for water supply in swimming/water sport", Adv. Nano Res., 15(5), 441-449. https://doi.org/10.12989/anr.2023.15.5.441.
  14. Ghadiri, M., Hosseini, S.H.S. and Shafiei, N. (2016a), "A power series for vibration of a rotating nanobeam with considering thermal effect", Mech. Adv. Mater. Struct., 23(12), 1414-1420. https://doi.org/10.1080/15376494.2015.1091527.
  15. Ghadiri, M., Shafiei, N. and Alavi, H. (2017a), "Thermomechanical vibration of orthotropic cantilever and propped cantilever nanoplate using generalized differential quadrature method", Mech. Adv. Mater. Struct., 24(8), 636-646. https://doi.org/10.1080/15376494.2016.1196770.
  16. Ghadiri, M., Shafiei, N. and Alireza Mousavi, S. (2016b), "Vibration analysis of a rotating functionally graded tapered microbeam based on the modified couple stress theory by DQEM", Appl. Phys. A, 122(9), 837. https://doi.org/10.1007/s00339-016-0364-5.
  17. Ghadiri, M., Shafiei, N. and Babaei, R. (2017b), "Vibration of a rotary FG plate with consideration of thermal and Coriolis effects", Steel Compos. Struct., 25(2), 197-207. https://doi.org/10.12989/scs.2017.25.2.197.
  18. Ghadiri, M., Shafiei, N. and Hossein Alavi, S. (2017c), "Vibration analysis of a rotating nanoplate using nonlocal elasticity theory", J. Solid Mech., 9(2), 319-337.
  19. Ghadiri, M., Shafiei, N., Salekdeh, S.H., Mottaghi, P. and Mirzaie, T. (2016c), "Investigation of the dental implant geometry effect on stress distribution at dental implant-bone interface", J. Brazil. Soc. Mech. Sci. Eng., 38(2), 335-343. https://doi.org/10.1007/s40430-015-0472-8.
  20. Guan, S. (2023), "Systematic test on the effectiveness of MEMS nano-sensing technology in monitoring heart rate of Wushu exercise", Adv. Nano Res., 15(2), 155-163. https://doi.org/10.12989/anr.2023.15.2.155.
  21. Guo, J., Baharvand, A., Tazeddinova, D., Habibi, M., Safarpour, H., Roco-Videla, A. and Selmi, A. (2021), "An intelligent computer method for vibration responses of the spinning multilayer symmetric nanosystem using multi-physics modeling", Eng. Comput., 1-22. https://doi.org/10.1007/s00366-021-01433-4.
  22. Habibi, M., Darabi, R., Sa, J.C.d. and Reis, A. (2021), "An innovation in finite element simulation via crystal plasticity assessment of grain morphology effect on sheet metal formability", Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, 235(8), 1937-1951. https://doi.org/10.1177/14644207211024686.
  23. He, L. and Deng, Q. (2023), "Construction of sports engineering structures with high resistance to improve the quality of sports training", Struct. Eng. Mech., 86(2), 211-220. https://doi.org/10.12989/sem.2023.86.2.211.
  24. He, X., Ding, J., Habibi, M., Safarpour, H. and Safarpour, M. (2021), "Non-polynomial framework for bending responses of the multi-scale hybrid laminated nanocomposite reinforced circular/annular plate", Thin Wall. Struct., 166, 108019. https://doi.org/10.1016/j.tws.2021.108019.
  25. Hou, F., Wu, S., Moradi, Z. and Shafiei, N. (2021), "The computational modeling for the static analysis of axially functionally graded micro-cylindrical imperfect beam applying the computer simulation", Eng. Comput., 1-19. https://doi.org/10.1007/s00366-021-01456-x.
  26. Hou, X., Xin, L., Fu, Y., Na, Z., Gao, G., Liu, Y., Xu, Q., Zhao, P., Yan, G., Su, Y., Cao, K., Li, L. and Chen, T. (2023a), "A self-powered biomimetic mouse whisker sensor (BMWS) aiming at terrestrial and space objects perception", Nano Energy, 118, 109034. https://doi.org/10.1016/j.nanoen.2023.109034.
  27. Hou, X., Zhang, L., Su, Y., Gao, G., Liu, Y., Na, Z., Xu, Q., Ding, T., Xiao, L., Li, L. and Chen, T. (2023b), "A space crawling robotic bio-paw (SCRBP) enabled by triboelectric sensors for surface identification", Nano Energy, 105, 108013. https://doi.org/10.1016/j.nanoen.2022.108013.
  28. Hu, Z., Ren, L., Wei, G., Qian, Z., Liang, W., Chen, W., Lu, X., Ren, L. and Wang, K. (2023), "Energy flow and functional behavior of individual muscles at different speeds during human walking", IEEE T Neural Syst. Rehabil. Eng., 31, 294-303. https://doi.org/10.1109/TNSRE.2022.3221986.
  29. Huang, X., Hao, H., Oslub, K., Habibi, M. and Tounsi, A. (2021a), "Dynamic stability/instability simulation of the rotary size-dependent functionally graded microsystem", Eng. Comput., 1-17. https://doi.org/10.1007/s00366-021-01399-3.
  30. Huang, X., Zhang, Y., Moradi, Z. and Shafiei, N. (2021b), "Computer simulation via a couple of homotopy perturbation methods and the generalized differential quadrature method for nonlinear vibration of functionally graded non-uniform micro-tube", Eng. Comput., 1-18. https://doi.org/10.1007/s00366-021-01395-7.
  31. Jannat, M.K.A., Islam, M.S., Yang, S.H. and Liu, H. (2023), "Efficient Wi-Fi-based human activity recognition using adaptive antenna elimination", IEEE Access, 11, 105440-105454. https://doi.org/10.1109/ACCESS.2023.3320069.
  32. Jia, S., Niu, X., Jia, F. and Mahmoudi, T. (2023), "Advantages and disadvantages of renewable energy-oil-environmental pollution-from the point of view of nanoscience", Adv. Concr. Constr., 16(1), 69-78. https://doi.org/10.12989/acc.2023.16.1.069.
  33. Jin, H., Zhang, B. and Duan, X. (2023), "Impact of nanocomposite material to counter injury in physical sport in the tennis racket", Adv. Nano Res., 14(5), 435-442. https://doi.org/10.12989/anr.2023.14.5.435.
  34. Lau, J.-S. and Li, Z. (2023), "Human functions in innovation and sustainable marketing", Adv. Concr. Constr., 16(2), 97. https://doi.org/10.12989/acc.2023.16.2.097.
  35. Li, J., Bin, N., Guo, F., Gao, X., Chen, R., Yao, H. and Zhou, C. (2023a), "Analysis on the influence of sports equipment of fiber reinforced composite material on social sports development", Adv. Nano Res., 15(1), 49-57. https://doi.org/10.12989/anr.2023.15.1.049.
  36. Li, S., Chen, H., Chen, Y., Xiong, Y. and Song, Z. (2023), " Hybrid method with parallel-factor theory, a support vector machine, and particle filter optimization for intelligent machinery failure identification", Machines, 11(8), 837. https://doi.org/10.3390/machines11080837.
  37. Li, X., Ali, H.E. and Albaijan, I. (2023c), "TiO 2-containing nanocomposite structure: Application and investigation in shoes sports medical soles in physical activities", Adv. Nano Res., 15(4), 329-337. https://doi.org/10.12989/anr.2023.15.4.329.
  38. Li, Y., Li, M., Kong, X., Baniasadi, A., Shaker, A.H. and Ali, H.E. (2023d), "Psychological capital to foster employee creativity in nanotechnology companies: the mediating role of JS and CSR", Adv. Nano Res., 15(3), 277-283. https://doi.org/10.12989/anr.2023.15.3.277.
  39. Li, Z. (2023), "Resistance of concrete made of fibers in weight lifting slabs against impact in sports training", Struct. Eng. Mech., 86(3), 325-336. https://doi.org/10.12989/sem.2023.86.3.325.
  40. Li, Z., Peng, S. and Chen, G. (2023e), "Research on safety assessment and application effect of nanomedical products in physical education", Adv. Nano Res., 15(3), 253-261. https://doi.org/10.12989/anr.2023.15.3.253.
  41. Liu, H., Zhao, Y., Pishbin, M., Habibi, M., Bashir, M. and Issakhov, A. (2021), "A comprehensive mathematical simulation of the composite size-dependent rotary 3D microsystem via two-dimensional generalized differential quadrature method", Eng. Comput., 1-16. https://doi.org/10.1007/s00366-021-01419-2.
  42. Liu, S., Niu, B., Karimi, H.R. and Zhao, X. (2024), "Self-triggered fixed-time bipartite fault-tolerant consensus for nonlinear multiagent systems with function constraints on states", Chaos, Solitons Fract., 178, 114367. https://doi.org/10.1016/j.chaos.2023.114367.
  43. Liu, Z., Su, S., Xi, D. and Habibi, M. (2020a), "Vibrational responses of a MHC viscoelastic thick annular plate in thermal environment using GDQ method", Mech. Based Des. Struct., 1-26. https://doi.org/10.1080/15397734.2020.1784201.
  44. Liu, Z., Wu, X., Yu, M. and Habibi, M. (2020b), "Large-amplitude dynamical behavior of multilayer graphene platelets reinforced nanocomposite annular plate under thermo-mechanical loadings", Mech. Based Des. Struct., 1-25. https://doi.org/10.1080/15397734.2020.1815544.
  45. Ma, Z., Qi, J., Xun, W. and Li, Y. (2023), "Sports injury treatment and sports rehabilitation employing the Nanoparticles containing zinc oxide", Adv. Nano Res., 15(1), 67-74. https://doi.org/10.12989/anr.2023.15.1.067.
  46. Miao, Y., Wang, X., Wang, S. and Li, R. (2023), "Adaptive switching control based on dynamic zero-moment point for versatile hip exoskeleton under hybrid locomotion", IEEE T Ind. Electr., 70(11), 11443-11452. https://doi.org/10.1109/TIE.2022.3229343.
  47. Mousavi, S.M., Shafiei, N. and Dadvand, A. (2017), "Numerical simulation of subsonic turbulent flow over NACA0012 airfoil: evaluation of turbulence models", Sigma J. Eng. Natural Sci., 35(1), 133-155.
  48. Omidi, S., Oskooee, M.B. and Shafiei, N. (2013), "Finite element analysis of an ultra-fine grained Titanium dental implant covered by different thicknesses of hydroxyapatite layer", Indian J. Dent., 4(1), 1-4. https://doi.org/10.1016/j.ijd.2012.10.002.
  49. Qu, J., Mao, B., Li, Z., Xu, Y., Zhou, K., Cao, X., Fan, Q., Xu, M., Liang, B., Liu, H., Wang, X. and Wang, X. (2023a), "Recent progress in advanced tactile sensing technologies for soft grippers", Adv. Funct. Mater., 33(41), 2306249. https://doi.org/10.1002/adfm.202306249.
  50. Qu, J., Yuan, Q., Li, Z., Wang, Z., Xu, F., Fan, Q., Zhang, M., Qian, X., Wang, X., Wang, X. and Xu, M. (2023b), "All-in-one strain-triboelectric sensors based on environment-friendly ionic hydrogel for wearable sensing and underwater soft robotic grasping", Nano Energy, 111, 108387. https://doi.org/10.1016/j.nanoen.2023.108387.
  51. Reddy, J.N. and Chin, C.D. (1998), "Thermomechanical analysis of functionally graded cylinders and plates", J. Therm. Stress., 21(6), 593-626. https://doi.org/10.1080/01495739808956165.
  52. Shafiei, N., Ghadiri, M., Makvandi, H. and Hosseini, S.A. (2017), "Vibration analysis of Nano-Rotor's Blade applying Eringen nonlocal elasticity and generalized differential quadrature method", Appl. Math. Modell., 43, 191-206. https://doi.org/10.1016/j.apm.2016.10.061.
  53. Shafiei, N., Hamisi, M. and Ghadiri, M. (2020), "Vibration analysis of rotary tapered axially functionally graded Timoshenko nanobeam in thermal environment", J. Solid Mech., 12(1), 16-32. https://doi.org/10.22034/jsm.2019.563759.1273.
  54. Shafiei, N., Kazemi, M. and Ghadiri, M. (2016), "Nonlinear vibration behavior of a rotating nanobeam under thermal stress using Eringen's nonlocal elasticity and DQM", Appl. Phys. A. 122(8), 728. https://doi.org/10.1007/s00339-016-0245-y.
  55. Shahabinejad, E., Shafiei, N. and Ghadiri, M. (2018), "Influence of temperature change on modal analysis of rotary functionally graded nano-beam in thermal environment", J. Solid Mech., 10(4), 779-803. https://jsm.arak.iau.ir/article_545719.html.
  56. Shan, X. and Huang, A. (2022), "Intelligent simulation of the thermal buckling characteristics of a tapered functionally graded porosity-dependent rectangular small-scale beam", Adv. Nano Res., 12(3), 281-290. https://doi.org/10.12989/anr.2022.12.3.281.
  57. Shao, Y., Zhao, Y., Gao, J. and Habibi, M. (2021), "Energy absorption of the strengthened viscoelastic multi-curved composite panel under friction force", Arch. Civil Mech. Eng., 21(4), 1-29. https://doi.org/10.1007/s43452-021-00279-3.
  58. Shivanian, E., Ghadiri, M. and Shafiei, N. (2017), "Influence of size effect on flapwise vibration behavior of rotary microbeam and its analysis through spectral meshless radial point interpolation", Appl. Phys. A, 123(5), 329. https://doi.org/10.1007/s00339-017-0955-9.
  59. Song, S., Zhang, T. and Zhui, Z. (2023), "Dynamic analysis of nanotube-based nanodevices for drug delivery in sports-induced varied conditions applying the modified theories", Steel Compos. Struct., 49(5), 487. https://doi.org/10.12989/scs.2023.49.5.487.
  60. Su, Z., Meng, J. and Su, Y. (2023), "Application of SiO2 nanocomposite ferroelectric material in preparation of trampoline net for physical exercise", Adv. Nano Res., 14(4), 355-362. https://doi.org/10.12989/anr.2023.14.4.355.
  61. Touloukian, Y.S. and Ho, C. (1970), Thermal expansion. Nonmetallic solids, Thermophysical properties of matter-The TPRC Data Series, New York, U.S.A.
  62. Wang, G., Peng, K., Zhou, H., Liu, G., Lou, Z. and Pan, F. (2023), "Nanocomposite reinforced structures to deal with injury in physical sports", Adv. Nano Res., 14(6), 541-555. https://doi.org/10.12989/anr.2023.14.6.541.
  63. Wang, P., Gao, Z., Pan, F., Moradi, Z., Mahmoudi, T. and Khadimallah, M.A. (2022), "A couple of GDQM and iteration techniques for the linear and nonlinear buckling of bidirectional functionally graded nanotubes based on the nonlocal strain gradient theory and high-order beam theory", Eng. Anal. Bound. Elem., 143, 124-136. https://doi.org/10.1016/j.enganabound.2022.06.007.
  64. Wang, Z., Yu, S., Xiao, Z. and Habibi, M. (2020), "Frequency and buckling responses of a high-speed rotating fiber metal laminated cantilevered microdisk", Mech. Adv. Mater. Struct., 1-14. https://doi.org/10.1080/15376494.2020.1824284.
  65. Wu, J. and Habibi, M. (2021), "Dynamic simulation of the ultrafast-rotating sandwich cantilever disk via finite element and semi-numerical methods", Eng. Comput., 1-17. https://doi.org/10.1007/s00366-021-01396-6.
  66. Xu, W., Pan, G., Moradi, Z. and Shafiei, N. (2021), "Nonlinear forced vibration analysis of functionally graded non-uniform cylindrical microbeams applying the semi-analytical solution", Compos. Struct., 114395. https://doi.org/10.1016/j.compstruct.2021.114395.
  67. Yang, Y. and Mao, Y. (2023), "Effect of cross-section geometry on the stability performance of functionally graded cylindrical imperfect composite structures used in stadium construction", Geomech. Eng., 35(2), 181-194. https://doi.org/10.12989/gae.2023.35.2.181.
  68. Ye, M., HangKong, O., Lin, Y., Ynag, Q., Xu, Q., Chen, T., Sun, L. and Ma, L. (2023), "Electron transport properties of Y-type zigzag branched carbon nanotubes", Adv. Nano Res., 15(3), 263-275. https://doi.org/10.12989/.2023.15.3.263.
  69. Zhang, H., Zou, Q., Ju, Y., Song, C. and Chen, D. (2022), "Distance-based support vector machine to predict DNA N6-methyladenine modification", Curr. Bioinform., 17(5), 473-482. https://doi.org/10.2174/1574893617666220404145517.
  70. Zhang, L. and Huang, Y. (2023), "Investigating the role of nano in preserving the environment with new energy and preventing oil pollution", Adv. Nano Res., 15(6), 541-550. https://doi.org/10.12989/anr.2023.15.6.541.
  71. Zhang, P., Song, J. and Mahmoudi, T. (2023a), "Simulation and modeling for stability analysis of functionally graded non-uniform pipes with porosity-dependent properties", Steel Compos. Struct., 48(2), 235-250. https://doi.org/10.12989/scs.2023.48.2.235.
  72. Zhang, R., Li, L., Zhang, Q., Zhang, J., Xu, L., Zhang, B.,... Wang, B. (2023), "Differential feature awareness network within antagonistic learning for infrared-visible object detection", IEEE T Circuits Syst. Video Technol., 33(12), 7671-7683. https://doi.org/10.1109/TCSVT.2023.3289142.
  73. Zhang, X., Li, J., Cui, Y., Habibi, M., Ali, H.E., Albaijan, I. and Mahmoudi, T. (2023c), "Static analysis of 2D-FG nonlocal porous tube using gradient strain theory and based on the first and higher-order beam theory", Steel Compos. Struct., 49(3), 293-306. https://doi.org/10.12989/scs.2023.49.3.293.
  74. Zhang, Y., Wang, Z., Tazeddinova, D., Ebrahimi, F., Habibi, M. and Safarpour, H. (2021), "Enhancing active vibration control performances in a smart rotary sandwich thick nanostructure conveying viscous fluid flow by a PD controller", Wave Random Complex Med., 1-24. https://doi.org/10.1080/17455030.2021.1948627.
  75. Zhang, Z., Du, J. and Mahmoudi, T. (2023d), "Green synthesis of silver nanoparticles to the microbiological corrosion deterrence of oil and gas pipelines buried in the soil", Adv. Nano Res., 15(4), 355-366. https://doi.org/10.12989/anr.2023.15.4.355.
  76. Zhao, H., Wang, H., Niu, B., Zhao, X. and Xu, N. (2024), "Adaptive fuzzy decentralized optimal control for interconnected nonlinear systems with unmodeled dynamics via mixed data and event driven method", Fuzzy Sets Syst., 474, 108735. https://doi.org/10.1016/j.fss.2023.108735.
  77. Zhao, S., Liang, W., Wang, K., Ren, L., Qian, Z., Chen, G., Lu, X., Zhao, D., Wang, X. and Ren, L. (2023), "A multiaxial bionic ankle based on series elastic actuation with a parallel spring", IEEE T Ind. Electr., 1-13. https://doi.org/10.1109/TIE.2023.3310041.
  78. Zhou, C., Zhao, Y., Zhang, J., Fang, Y. and Habibi, M. (2020), "Vibrational characteristics of multi-phase nanocomposite reinforced circular/annular system", Adv. Nano Res., 9(4), 295-307. https://doi.org/10.12989/anr.2020.9.4.295.
  79. Zou, Y., Zhong, M., Li, S., Qing, Z., Xing, X., Gong, G., Yan, R., Qin, W., Shen, J., Zhang, H., Jiang, Y., Wang, Z. and Zhou, C. (2023), "Flexible wearable strain sensors based on laser-induced graphene for monitoring human physiological signals", Polymers, 15(17). https://doi.org/10.3390/polym15173553.