Results 61 to 70 of about 6,537 (249)

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska   +5 more
wiley   +1 more source

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

open access: yesAdvanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou   +6 more
wiley   +1 more source

AN AXISYMMETRIC JOINT ELEMENT UNDER NON-AXISYMMETRIC LOADINGS IN SEMI-ANALYTICAL FINITE ELEMENT METHOD

open access: yesDoboku Gakkai Ronbunshu, 1986
A new axisymmetric joint element model for semi-analytical finite element analysis of axisymmetric bodies subjected to non-axisymmetric loading is proposed. The new joint element model for axisymmetric interface has three degrees of freedom: normal tangential and circumferential directions and describes debonding (normal direction), and slip ...
Tameo KOBORI, Yasuo CHIKATA
openaire   +2 more sources

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

open access: yesAdvanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

RESEARCH OF FREE-EDGE EFFECT OF COMPOSITE LAMINATES BASED ON SEPARABLE HAMILTON CANONICAL EQUATION

open access: yesJixie qiangdu, 2018
A semi-analytical solution theory is presented by combining the separable Hamilton canonical equation and finite element method. The problem of free-edge effect of orthotropic laminates is studied in symplectic system.
GUO QiaoRong, XU JianXin, QING GuangHui
doaj  

Efficient Implementation of the Semi-Analytical Finite Element Method for Dispersion Curves Calculation in Multilayered Waveguides

open access: yesApplied Sciences
The increasing use of layered materials in various modern industries demands effective non-destructive testing methods. Guided wave testing is a promising solution, but accurate dispersion curves are essential for its reliable implementation.
Dmitry O. Dolmatov, Mikhail M. Tsyplakov
doaj   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

open access: yesAdvanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang   +9 more
wiley   +1 more source

Contact Geometry Adaptation in Fretting Wear: A Constructive Review

open access: yesFrontiers in Mechanical Engineering, 2020
Fretting is a special type of wear, which appears at the contact interface between two solids subjected to constant normal load and periodic tangential forces.
Ivan Argatov, Young Suck Chai
doaj   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

open access: yesAdvanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti   +8 more
wiley   +1 more source

Modelagem de cascas abatidas através do MEC.

open access: yesRevista Tecnologia, 2009
The present work deals with the numerical analysis of shallow shells using Boundary Element Method (BEM). The formulation is developed by coupling integral equations of plate bending and plane stress elasticity.
Eduardo T de Lima Junior   +1 more
doaj  

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