Results 81 to 90 of about 43,639 (244)
Deflection characteristics and influencing factors of projectile oblique impact on concrete targets
AIP AdvancesThe projectile deflects and even ricochets after an oblique impact on the concrete. However, research on the oblique impact of projectiles on concrete targets mainly focuses on oblique penetration and the critical ricochet angle, and there are few ...
Xiangyu Xu +6 more
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Active Metamaterials with Tunable Shear Nonreciprocity and Nonlinear Dynamics
Advanced Science, EarlyView.Active gear‐based mechanical metamaterials enable simultaneous control of translational and torsional stiffnesses by 30–100×, break shear reciprocity under positive versus negative loads, broadly tune resonant frequencies, and offer programmable dynamic responses.
Xin Fang, Miao Yu, Dianlong Yu, Li Cheng
wiley +1 more source
Numerical Simulation of Projectile Oblique Impact on Microspacecraft Structure
International Journal of Aerospace Engineering, 2017 In the present study, the microspacecraft bulkhead was reduced to the double honeycomb panel, and the projectile oblique hypervelocity impact on the double honeycomb panel was simulated.
Zhiyuan Zhang +3 more
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Advanced Science, EarlyView.This study proposes a piezoelectric interface modification strategy to amplify the piezoionic effect. The piezoelectric interface generates an intrinsic electric field, which not only drives rapid ion migration but also concentrates polarized ions on the interface. The flexible sensor delivers superior performance, such as a quick response rate, strong
Yanyu Chen +5 more
wiley +1 more source
Journal of Dental SciencesBackground/purpose: Horizontal skeletal discrepancies can influence smile esthetics, but their impact on smile dynamics from different photographic perspectives remains underexplored.
Johnson Hsin-Chung Cheng +3 more
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Estimation Method for Ice load of Managed Ice in an Oblique Condition
한국해양공학회지, 2018 Recently, as sea ice in the Arctic has been decreasing due to global warming, it has become easier to develop oil and gas resources buried in the Arctic region.
Hyunsoo Kim, Jae-bin Lee
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Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
wiley +1 more source
Materials & DesignRotational head motion is one of the major contributors to brain tissue strain during head impacts, which damages axons and vessels and leads to traumatic brain injury.
Fady F. Abayazid, Mazdak Ghajari
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Advanced Intelligent Systems, EarlyView.Soft robotic arms are promising for gentle grasping but often rely on bulky actuation systems. This work presents a computational design framework that optimizes tendon number and routing to achieve target grasps with fewer actuators. Validated on an octopus‐inspired underwater arm, the approach enables efficient, underactuated soft manipulators for ...
Michele Martini +6 more
wiley +1 more source