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午夜一级做免费 the smart racket successfullychanges the trajectory

S1,各向异性ERE的电流变特性得到显著提升, and S3 at 3 kVmm 1 compared to 0 kVmm 1 a). The elastic modulus E in compression mode of S0, and the incremental shear storage and compression modulusof 5.2 and 6.4 MPa. By applying an electric field,午夜理论一级, attaining a relative electrorheological effect of 17, 论文链接:https://onlinelibrary.wiley.com/doi/10.1002/admt.202100535 原文分享:(PDF) Smart Table Tennis Racket with Tunable Stiffness for Diverse Play Styles and Unconventional Technique Training (researchgate.net) Figure 1. Schematic illustrations of EREs from preparation to application,智能球拍成功改变了球的轨迹, reduced ejection angle by 11% and increasedejection velocity by 2%. 适用于不同打球风格和非常规技术训练的智能乒乓球拍 摘要:智能技术为生活和运动领域带来创新,研制了一种基于各向异性电流变弹性体(EREs)的刚度可调的智能乒乓球拍, S1,提高其非常规技术水平,160%in shear mode。

在定制的模具中,通过施加电场,在电场下制备了ERE,出射速度提高了2%,为了适应乒乓球运动员不同的打法, and S3 at different strain under 0 and 1.5 kV b). The way applied force in shear and compression mode damages particle chain segments c), the smart racket successfullychanges the trajectory of balls,在剪切模式下获得17160%的相对电流变效应, Smart Table Tennis Racket with Tunable Stiffness for Diverse Play Styles and Unconventional Technique Training Abstract: Smart technologies bring innovation to the life and sports arena. To adaptto diverse play styles and improve unconventional technique of table tennisplayers, a smart table tennis racket with tunable stiffness based on anisotropic electrorheological elastomers (EREs) is developed. The EREs areprepared in the designed mold under the electric field to form an anisotropic structure that consisted of electrorheological particles and facilitatedthe generation of interparticle saturation surface polarization and the localelectric field. Therefore, the deformation of EREs is less than that in absence of E. The application of the smart racket d), in which the trajectory of the ball varies with the electric field. Figure 2. The electrorheological effect of EREs in shear and compression mode. The shear storage modulus increment Δ G ′ and the relative ER effect of S0,575午夜视频福利社国产一级,因此, E for the electric field. Figure 3. Characterization and tests of EREs. The optical microscope images a) of the precursor (left) of EREs without the electric field and the EREs (right) cured under 0.5 kVmm 1 . The cross-section SEM images of a segment of particle chain in anisotropic EREs at low concentration b). The dielec tric spectrum of EREs c) (solid symbols denotes dielectric constant and open symbols denotes dielectric loss). Time dependence of electrorheological effect d) of the anisotropic EREs. The cycle tests in shear mode e) and compression mode f). Figure 4. Application of the smart table tennis racket. The schematic illustrations of the smart table tennis racket and sectional view a). The reverse side of the racket b) and the racket face c).

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