Results 121 to 130 of about 4,429,714 (243)

Bistable Networks Enable Complex Shape Changes

Advanced Science, EarlyView.
Transition‐controlled metamaterials are networks of bistable mechanical memory that store local binary states and express them as global shape change. By decoupling low‐force programming from high‐force holding, a single lattice is reconfigured into distinct 2D profiles and 3D surfaces without continuous actuation, enabling reusable morphing materials ...
Sawyer Thomas, Jeffrey Lipton
wiley   +1 more source

Kinematics equations of a class of 4-dof parallel wrists

, 2004
The paper discusses forward and inverse kinematics of a class of 4-dof 4-legged parallel mechanisms providing three rotational and one translational freedoms. A fully parametric analytical form solution to the inverse position problem is provided.
GOSSELIN, C., ZLATANOV, DIMITER, ZOPPI, MATTEO   +2 more
core   +1 more source

Kinematics and Trajectory Planning Analysis of 5-DOF Manipulator

Jixie chuandong, 2018
Aiming at the designed 5-DOF manipulator,the forward kinematics model is established by using D-H method,and the closed expression of inverse kinematics is obtained by using the inverse transformation method and geometry method.
Liu Yawen, Zhou Zhiyuan, Wang Jie, Yu Lianqing, Li Hongjun   +4 more
doaj  

Endothelial YAP Signaling Promotes Blood‐Spinal Cord Barrier Repair in Mice After Spinal Cord Injury

Advanced Science, EarlyView.
Endothelial YAP is required for blood‐spinal cord barrier repair after spinal cord injury. YAP‐dependent vascular repair is associated with ANGPT1/PI3K/AKT signaling in vivo and may involve endothelial‐pericyte paracrine interactions. By supporting vascular remodeling, tight junction restoration, restored pericyte coverage, and astrocyte‐vascular ...
Jiawei Wang, Yaozhi He, Yanjiao Wang, Jingjing Zhang, Qishun Liang, Mengxian Jia, Yumin Wu, Zongjie Yuan, Ziwei Fan, Yuxuan Li, Huihui Zhang, Qinjiao Fu, Ying Wang, Zhihui Huang, Honglin Teng   +14 more
wiley   +1 more source

Geometry‐Encoded Actuation as a Structural Interaction Layer in Origami Robots

Advanced Science, EarlyView.
We present geometry‐encoded actuation (GEA), a design framework that integrates multistable origami with liquid crystal elastomer actuators to encode environmental interactions into autonomous structural responses. GEA enables programmable shape transformation without continuous sensing or complex control, achieving robust adaptive manipulation and ...
Jianshu Zhou, Yitong Li, Junda Huang, Ian Zhang, Haoran Liu, Boyuan Liang, Yiyuan Zhang, Xiaohui Xiao, Qiguang He   +8 more
wiley   +1 more source

Inverse Design of Pre‐Strain via a Predictive Electromechanical Model for Enhanced Strain Sensing

Advanced Science, EarlyView.
An analytical electromechanical model rooted in microcrack evolution mechanics is globally calibrated from only eight pre‐strain datasets, enabling prediction of the complete sensing response at untested pre‐strain values within the calibrated design space (R2 > 0.99).
Jia‐Chen Shang, Rui Wang, Bo Lu, Ming‐Liang Song, Yu‐Yi Chen, Kuo Han, Xin‐Jie Feng, Bin Sun, Yao‐Guang Cao, Xiao‐Yu Yan, Shi‐Chun Yang   +10 more
wiley   +1 more source

An Interpretable, Data‐Driven, Hierarchical Multi‐Domain Fusion Framework for Classification and Motor Function Scoring in Chronic Ankle Instability

Advanced Science, EarlyView.
An AI‐enabled digital twin framework integrates wearable EMG sensing with hierarchical multi‐domain fusion to classify chronic ankle instability, distinguish clinically relevant subtypes, and generate continuous motor function scores. Clinically interpretable functional stratification and SHAP‐based biomarker analysis provide transparent decision ...
Tianle Jie, Datao Xu, Zhifeng Zhou, Bas Van Hooren, Huiyu Zhou, Yi Yuan, Xiangli Gao, Monèm Jemni, Liangliang Xiang, Meizi Wang, Justin Fernandez, Tibor J. Goda, Yaodong Gu   +12 more
wiley   +1 more source

Kinematics Analysis of Grasping Manipulator based on ART-RBF Learning Algorithm

Jixie chuandong, 2019
In view of the difficulties encountered in the study of the kinematics inverse kinematics of grasping manipulator, a ART-RBF model based on soft competition mechanism is selected. On the basis of traditional RBF neural network, adaptive control generates
Kai Wang, XiaoJin Wan
doaj  

MOF‐Derived Cu‐TiO2/Alginate Micromotors for Buoyancy‐Regulated 3D Motion

Advanced Science, EarlyView.
In this work, cyanobacteria‐inspired sodium alginate (SA)/Cu‐TiO2/Fe3O4 hydrogel micromotors generate and encapsulate O2 microvesicles upon light irradiation, enabling buoyancy‐mediated Z‐axis upward migration and surface enrichment at the light‐exposed water‐air surface.
Wei Zou, Qing Wu, Jiawei Lin, Kunchen Li, Yulong Ying, Josep Puigmartí‐Luis, Salvador Pané, Sheng Wang   +7 more
wiley   +1 more source

Kinematics Analysis of a 5-DOF Manipulator

Jixie chuandong, 2015
Aiming at a designed W- 5D type underwater sampling manipulator,the parameters and forward kinematics model is established by using the D- H method.
Fu Guodong, Zheng Xiangzhou, Huang Si
doaj