Results 101 to 110 of about 3,728 (241)

A Worm‐Inspired Origami Robot with Multimodal Locomotion for Adaptive Mobility in Complex Pipeline Environments

Advanced Science, EarlyView.
An origami worm‐inspired robot achieves multimodal locomotion in confined pipelines through mechatronic integration that embeds actuation, control, and communication within each origami module. Large, reversible configuration and dimensional changes enable 25 gaits synthesized by a unified framework across peristaltic, inchworm, and wheel‐rolling modes
Qiwei Zhang, Kangning Tan, Zihan He, Hongsen Pang, Yanjie Wang, Hongbin Fang, Jian Xu   +6 more
wiley   +1 more source

Research on the Poisson’s Ratio of Black Phosphorene Nanotubes Under Axial Tension

Nanomaterials
In this paper, the Poisson’s ratio of black phosphorene nanotubes was examined through the molecular dynamics simulation method. Our research discovered that for the armchair black phosphorene nanotubes, the radial strain and the wall thickness strain ...
Xinjun Tan, Touwen Fan, Kaiwang Zhang
doaj   +1 more source

Revealing the Sound Transmission Loss Capacities of Sandwich Metamaterials with Re-Entrant Negative Poisson's Ratio Configuration. [PDF]

Materials (Basel), 2023
Li F, Chen Y, Zhu D.
europepmc   +1 more source

Electrohydraulic Folding Ring Actuators for Radially Contracting Applications

Advanced Science, EarlyView.
This work presents an Electrohydraulic Folding Ring Actuator that combines high‐performance electrohydraulic actuation with origami‐inspired folding geometry to achieve constricting radial actuation. This integration yields significant inner lumen constriction, alongside a gripping force capable of holding objects exceeding four times the actuator's ...
Gavril Yong En Tan, Quan Xiong, Jonathan William Ambrose, Zeynep Altundal, Raye Chen‐Hua Yeow   +4 more
wiley   +1 more source

Large Negative Poisson's Ratio and Anisotropic Mechanics in New Penta-PBN Monolayer. [PDF]

ACS Omega, 2022
Sharma SB, Qattan IA, Kc S, Alsaad AM.
europepmc   +1 more source

Drop‐Shaped Optical Microfiber Enabled Biomechanical Sensor

Advanced Science, EarlyView.
A novel microforce sensor based on a drop‐shaped optical microfiber is presented herein, designed to characterize the biomechanical properties of single cells and microscale living organisms, achieving a force resolution of 24 nN. Leveraging its high sensitivity, facile miniaturization, excellent flexibility, and robust mechanical stability, this ...
Yan Xu, Xitao Tu, Haochen Jiang, Jun Mo, Xinyue Zhang, Xiaomin Yue, Limin Tong, Lei Zhang   +7 more
wiley   +1 more source

Tailoring centripetal metamaterial with superelasticity and negative Poisson's ratio for organic solvents adsorption. [PDF]

Sci Adv, 2022
Tian L, Yang J, You X, Wang M, Ren X, Zhang X, Dong S.   +6 more
europepmc   +1 more source

A Data‐Driven Inverse Design Methodology for Magnetic Soft Millirobots Navigating in Confined Spaces

Advanced Science, EarlyView.
A data‐efficient inverse design framework automates the optimization of magnetic soft millirobots for confined‐space navigation. Integrating a physics‐based Cosserat rod model with Bayesian optimization efficiently identifies high‐performance geometries.
Ziyu Ren, Hong Wang, Chak Wang Tse, Yi Zheng, Xi Chen, Wenqi Hu   +5 more
wiley   +1 more source

Butterfly-shaped honeycomb structures with embedded elliptical units: Tunable Poisson’s ratio and energy absorption

Materials & Design
Auxetic honeycomb structures are promising for lightweight energy-absorbing applications. However, achieving a wide tunable range of Poisson’s ratio while maintaining good energy-absorption performance remains challenging. This study proposes a honeycomb
Zhiqiang Zhang, Yun Yan, Liang Song, Dayong Hu   +3 more
doaj   +1 more source

Large piezoelectric and thermal expansion coefficients with negative Poisson's ratio in strain-modulated tellurene. [PDF]

Nanoscale Adv, 2021
Sachdeva PK, Gupta S, Bera C.
europepmc   +1 more source