Results 131 to 140 of about 7,615 (258)

AFWAL space control technology program [PDF]

open access: yes, 1985
An overview of space oriented control technology programs which are applicable to flexible large space structures is presented. The spacecraft control activity is interdisciplinary with activities in structures, structural dynamics and control brought ...
Hoehne, V. O.
core   +1 more source

GaIn‐Induced Polarization Control in PVDF for High‐Efficiency Energy Harvesting and Instantaneous Wireless Sensing

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a liquid metal–engineered β‐PVDF composite enabling high‐performance piezoelectric–triboelectric nanogenerators. Guided by MD/DFT simulations, GaIn doping promotes β‐phase formation and dipole alignment, while native oxides enhance charge retention.
Jiaqi Lu   +13 more
wiley   +1 more source

Piezoelectric linear actuator [PDF]

open access: yes, 1969
Actuator exerts linear force that is controllable and reproducible to microinch tolerance. It is constructed for extremely accurate control of a valve but can also be used as a variable venturi meter, micropositioner, microthruster, and in fluidics and ...
Lehrer, S.
core   +1 more source

Simulation of Piezoelectric Stack Actuators for Loss Component

open access: yesJournal of Engineering Science and Technology Review, 2021
Mark Christian P. Espinosa   +3 more
openaire   +1 more source

Spider Silk Inspired Shape Adaptive and Heat Conductive Thermal Interface Materials

open access: yesElectron, EarlyView.
Inspiring by the architecture of spider silk, a semicrystalline PVDF polymer emerges selective crystallization by dipole polarization of amorphous chains while maintaining crystalline domains with exceptional thermal conductance. This precisely orchestrated hierarchical architecture optimizes thermal conductance by efficient phonon transmission along C–
Baoxi Zhang   +5 more
wiley   +1 more source

Fabrication Methods for Adaptive Deformable Mirrors [PDF]

open access: yes
Previously, it was difficult to fabricate deformable mirrors made by piezoelectric actuators. This is because numerous actuators need to be precisely assembled to control the surface shape of the mirror. Two approaches have been developed.
Daraio, Chiara   +8 more
core   +1 more source

Flexible ionic pressure sensors: From migration‐electronic mechanisms to emerging iontronic paradigms

open access: yesInfoMat, EarlyView.
Mechanisms, materials, structures, and applications of the FIPSs. Abstract Flexible ionic pressure sensors (FIPS) have emerged as promising candidates for bridging the gap between electronics and biologically compatible interfaces. Unlike previous reviews, which focused primarily on materials or devices, this review presents a classification of FIPS ...
Mengjie Wang   +10 more
wiley   +1 more source

Recent Advances in Conductive Rubber Composites: Progress, Challenges, and Emerging Opportunities

open access: yesMacromolecular Rapid Communications, EarlyView.
This study reviews the recent advances in conductive rubber composites, focusing on key aspects such as material selection, conductive mechanisms, interfacial engineering, processing methods, vulcanization strategies, and practical applications. It also discusses current challenges and highlights emerging directions that are shaping the development of ...
Lu Yin   +3 more
wiley   +1 more source

Electrospun conducting polymers: recent trends and the transition towards a sustainable future

open access: yesPolymer International, EarlyView.
This review discusses the electrospinning of conducting polymers, detailing procedures, fibrous morphologies, improved properties, applications in electronics, and challenges, while outlining future directions for nanofibre‐based devices in various fields.
Xenofon Karagiorgis   +3 more
wiley   +1 more source

Progress of MXenes‐based responsive materials for soft sensors and actuators

open access: yesResponsive Materials, EarlyView.
MXene, a promising 2D material, excels at mimicking human sensing and feedback system, making it ideal for intelligent robots. This review first covers its structure, properties, and synthesis. It then summarizes recent MXene‐based sensors and actuator.
Peidi Zhou   +10 more
wiley   +1 more source

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