Results 91 to 100 of about 2,102,093 (241)

Design and Control of a Highly Redundant Rigid-flexible Coupling Robot to Assist the COVID-19 Oropharyngeal-Swab Sampling. [PDF]

IEEE Robot Autom Lett, 2022
Hu Y, Li J, Chen Y, Wang Q, Chi C, Zhang H, Gao Q, Lan Y, Li Z, Mu Z, Sun Z, Knoll A.   +11 more
europepmc   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

Vector‐Field Control and Emergent Basal‐Plane Anisotropy of Magnetic Textures in Noncentrosymmetric (Fe0.63Ni0.3Pd0.07)3P

Advanced Functional Materials, EarlyView.
A field‐driven transition from chiral stripes to an achiral fan state is observed in a tetragonal magnet and linked to a temperature‐dependent rotation of the effective Dzyaloshinskii–Moriya interaction axis. This interplay generates pronounced in‐plane anisotropy and provides a new route for controlling chiral spin textures in noncentrosymmetric ...
Victor Ukleev, Oleg I. Utesov, Lorenzo Ubilla, Chen Luo, Radu‐Marius Abrudan, Peter Wild, Holger Kropf, Moritz Winter, Sebastian Schneider, Alexander Tahn, Bernd Rellinghaus, Tim A. Butcher, Simone Finizio, Sebastian Wintz, Markus Weigand, Max T. Birch, Yoshinori Tokura, Yasujiro Taguchi, Kosuke Karube, Florin Radu   +19 more
wiley   +1 more source

An Assembly Accuracy Analysis Method for Weak Rigid Components

Machines
Most existing assembly accuracy analysis methods focus on rigid assemblies or assume assemblies to be rigid bodies, neglecting the influence of assembly deformation in weak rigid components (WRCs) such as thin-walled structures, cantilever structures ...
Dongping Zhao, Zhe Yuan, Xiaosong Zhao, Gangfeng Wang   +3 more
doaj   +1 more source

Global Impact Dynamic Modeling and Verification of a Flexible Beam with Large Overall Motion

Advances in Mechanical Engineering, 2013
The theoretical modeling, numerical simulation, and experimental verification for the impact dynamics of a flexible beam with large overall motion are researched. Based on the rigid-flexible coupling dynamic theory of flexible multibody system, the rigid-
Yuechen Duan, Dingguo Zhang, Jiazhen Hong   +2 more
doaj   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Strong, Recyclable, Bio‐Based Vitrimers by Tailored Rigid‐Flexible Structures for Advanced Carbon Fiber‐Reinforced Polymers

Carbon fiber-reinforced polymers (CFRPs) are typically composed of carbon fibers (CFs) and epoxy (EP) resins, which have been widely utilized in diverse industries.
Song, Nannan, Hong, Min, Ye, Guofeng, Chen, Tingting, Wang, Cheng, Chen, Zhongwei, Song, Pingan, Yu, Yuan, Guo, Yong, Pan, Ye-Tang, Huo, Siqi, Wang, Hao   +11 more
core   +1 more source

Research of the Rigid-flexible Coupling Dynamics Simulation Analysis of Auxiliary Standing Mechanism

Jixie chuandong, 2016
Aiming at the problem of large deviation between the simulation results and the actual situation when regarding the pure rigid body as the smaller stiffness part with large force.
Zhou Hui, Qin Baorong, Bao Jiahua, Zhang Dongdong, Xiang Bingle, Wang Zhengxing   +5 more
doaj  

Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials

Advanced Functional Materials, EarlyView.
Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni, Nastaran Bahrami Novin, Luigi Benvenuto, Enrico Lertora, Flavia Libonati   +4 more
wiley   +1 more source

弧面分度凸轮机构刚柔耦合仿真模型研究

Jixie chuandong, 2008
Way and procedure of simulation of the roller gear indexing cam based flexible cam axes are expounded, and the method of forcing between flexible cam axes and rigid graduator is studied to set up the model for simulation of the roller gear indexing cam ...
刘言松, 贺炜, 陈莉, 史鹏涛
doaj