Results 91 to 100 of about 6,933 (290)

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

open access: yesAdvanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff   +4 more
wiley   +1 more source

Dynamic Analysis of Thick Plates Including Deep Beams on Elastic Foundations Using Modified Vlasov Model

open access: yesShock and Vibration, 2013
Dynamic analysis of foundation plate-beam systems with transverse shear deformation is presented using modified Vlasov foundation model. Finite element formulation of the problem is derived by using an 8-node (PBQ8) finite element based on Mindlin plate ...
Korhan Ozgan
doaj   +1 more source

Advances in Electroactive Liquid Crystal Elastomers for Intelligent Robotics and Electronics

open access: yesAdvanced Robotics Research, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) integrate molecular anisotropy with electrical functionality to enable programmable actuation and reconfigurable electronics. This review classifies eLCEs into robotic actuators and adaptive electronics, summarizes key actuation mechanisms, and highlights fabrication strategies that bridge materials to ...
Kavita Ramesh Rathod   +14 more
wiley   +1 more source

An Accurate Locking-free Quadrilateral Plate Element

open access: yes工程科学与技术, 2006
:It is the purpose of this paper to design a high-performance locking-free low-order plate element, based on the Hellinger-Reissner variational principle of Mindlin-Reissner plates.
doaj  

Interpolation functions and shear locking of Timoshenko beams

open access: yes, 2022
Elementtimenetelmissä käytettävät palkkielementit voidaan jakaa leikkausmuodonmuutoksen huomioiviin ja huomiotta jättäviin elementteihin. Puhekielessä leikkausmuodonmuutoksen huomioivia palkkielementtejä kutsutaan yleisesti Timoshenkon palkkielementeiksi,
Wuite, Benjamin
core  

Redox‐Dependent Chaperoning of GBF1 Condensates Regulates Seed Germination in Arabidopsis

open access: yesAdvanced Science, EarlyView.
In dormant seeds (low ROS), GBF1 forms liquid condensates to repress the germination gene CathB3, and the chaperone GIP1 maintains condensate liquidity and repressive activity. Upon imbibition (high ROS), ROS oxidize GIP1 during germination, impairing its chaperone function.
Yunying Wang, Xiaofeng Fang
wiley   +1 more source

On Alleviation of Shear Locking in the Kriging-Based Finite Element Method [PDF]

open access: yes, 2006
Recently, Kriging-based finite element method (K-FEM) has been developed for analysis of Reissner-Mindlin plates. This method provides sufficient flexibility in customizing the interpolation function for desired smoothness and accuracy.
Tjong, Wong Foek   +1 more
core  

A Bioinspired Three‐Dimensional High‐Curvature Nano‐Interface Integrated Microfluidic Chip for Small Extracellular Vesicles Enrichment and Machine Learning‐Assisted Prostate Cancer Precision Diagnosis

open access: yesAdvanced Science, EarlyView.
A biotin‐modified artificial insertion peptide functionalized three‐dimensional high‐curvature‐TiO2 nano‐interface was engineered in a microfluidic chip to improve the isolation efficiency of small extracellular vesicles (sEVs). This chip balanced affinity, releasability, and extendibility, enabling high‐throughput recovery of sEVs for downstream ...
Le Wang   +7 more
wiley   +1 more source

Kriging-Based Timoshenko Beam Element for Static and Free Vibration Analyses

open access: yesCivil Engineering Dimension, 2011
An enhancement of the finite element method using Kriging interpolation (K-FEM) has been recently proposed and applied to solve one- and two- dimensional linear elasticity problems.
Syamsoeyadi H., Wong F.T.
doaj  

A Simple High-Order Shear Deformation Triangular Plate Element with Incompatible Polynomial Approximation

open access: yesApplied Sciences, 2018
The High-order Shear Deformation Theories (HSDTs) which can avoid the use of a shear correction factor and better predict the shear behavior of plates have gained extensive recognition and made quite great progress in recent years, but the general ...
Yudan Gou, Yongchang Cai, Hehua Zhu
doaj   +1 more source

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