Results 141 to 150 of about 51,991 (302)
Active Metamaterials with Tunable Shear Nonreciprocity and Nonlinear Dynamics
Advanced Science, EarlyView.Active gear‐based mechanical metamaterials enable simultaneous control of translational and torsional stiffnesses by 30–100×, break shear reciprocity under positive versus negative loads, broadly tune resonant frequencies, and offer programmable dynamic responses.
Xin Fang, Miao Yu, Dianlong Yu, Li Cheng
wiley +1 more source
, 2011 Le Titano-Zirconate de Plomb, ou PZT est un matériau piézoélectrique présentant de très bonnes performances pour l'actionnement des microsystèmes. Dans ce travail de thèse, nous nous proposons de répondre à la problématique de l'intégration du PZT par dépôt sol-gel.
openaire +1 more source
Advanced Science, EarlyView.The first TrFE‐free ferroelectric polymers exhibiting concurrently a morphotropic phase boundary and high Curie temperature are reported through a grafting strategy, which is completely different from previous methods to design MPB by composition and irradiation. This finding offers a cost‐effective solution to decode the long‐standing inverse relation
Zekai Fei +6 more
wiley +1 more source
The optimization of force inputs for active structural acoustic control using a neural network [PDF]
This paper investigates the use of a neural network to determine which force actuators, of a multi-actuator array, are best activated in order to achieve structural-acoustic control.
Cabell, R. H. +2 more
core +1 more source
Proximity Ferroelectricity in Compositionally Graded Structures
Advanced Electronic Materials, EarlyView.We perform the finite element modeling of the polarization switching in the compositionally graded AlN‐Al1‐xScxN and ZnO‐Zn1‐xMgxO structures and reveal the switching of spontaneous polarization in the whole structure in all these systems. The coercive field to switch is significantly lower than the electric breakdown field of the unswitchable AlN and ...
Eugene A. Eliseev +4 more
wiley +1 more source
Advanced Electronic Materials, EarlyView.A fully edible wheat bran–algae substrate is fabricated through scalable mould‐compression and spray‐coating, enabling robust, food‐grade platforms for sustainable electronics. A chitosan barrier improves water resistance and ink compatibility, while activated‐carbon conductive films form uniform electrodes with Ohmic behaviour.
Jaz Johari +7 more
wiley +1 more source
Modeling and compensation of hysteresis in piezoelectric actuators. [PDF]
Heliyon, 2020 Yu Z, Wu Y, Fang Z, Sun H.
europepmc +1 more source
Optimal piezo-electro-mechanical coupling to control plate vibrations
, 2010 A new way of coupling electrical and mechanical waves, using piezoelectric effect, is presented here. Since the energy exchange between two systems supporting wave propagation is maximum when their evolution is governed by similar equations, hence, an ...
Alessandroni, S. +2 more
core +1 more source
Recycled Piezoelectric Materials with Competitive Second‐Life Functional Properties
Advanced Electronic Materials, EarlyView.The essential piezoelectric ceramics with heavy ecological footprints are not sufficiently recycled. This work demonstrates the feasibility of recycling different types of piezoelectric ceramics using different binders, where the terpolymer binder with relatively large permittivity facilitated superior retention of properties after recycling, promoting
Mohadeseh Tabeshfar +2 more
wiley +1 more source
An analytical and experimental investigation of flutter suppression via piezoelectric actuation [PDF]
The objective of this research was to analytically and experimentally study the capabilities of adaptive material plate actuators for suppressing flutter.
Heeg, Jennifer
core +1 more source