Results 101 to 110 of about 8,850 (215)

Frequency Reconfigurable Monopole Antenna for Multimode Wireless Communications

open access: yes, 2014
This paper describes a compact reconfigurable microstrip antenna for multimode wireless communications, whose frequency characteristic can be reconfigured electronically to operate at 2.4 GHz (Bluetooth), 3.5 GHz (WiMAX) or 5.2/5.8 GHz (WLAN).
Ojaroudi, Nasser   +3 more
core  

In‐Process Magnetization for 3D Printing of Magnetorheological Elastomer with Heterogeneous Magnetic Profile for Anisotropic Actuation

open access: yesAdvanced Science, EarlyView.
Fully programmable, in‐process 3D magnetization integrated with multi‐material printing enables soft magnetic systems with precise actuation and sensing. Discrete and continuous magnetization profiles drive bending, morphing, and locomotion, demonstrated through strain‐sensing elements, dragonfly‐inspired wings, octopus‐like tentacles, and a serpentine
Phillip Glass   +5 more
wiley   +1 more source

Dual‐Mode Nanoporous SiO2 Memristors with Coexisting Volatile and Nonvolatile Dynamics for Reservoir Computing

open access: yesAdvanced Science, EarlyView.
A nanoporous SiO2 memristor enabling reconfigurable volatile and non‐volatile switching within a single device is demonstrated. The dual‐mode functionality supports both physical reservoir dynamics and synaptic weight storage, allowing unified hardware implementation of reservoir computing for temporal information processing, including image and ...
Bohao Ding   +5 more
wiley   +1 more source

Switchable-feed reconfigurable ultra-wide band planar antenna

open access: yes, 2015
Reconfigurable antennas capable of radiating in only specific desired directions increase system functionality in applications like direction finding and beam steering.
Coetzee, Jacob, Sheel, Soumya
core  

Physics‐Informed Neural Network‐Enabled Forward Prediction and Inverse Design of Ring Origami

open access: yesAdvanced Science, EarlyView.
This work presents a KRT‐PINN framework that integrates Kirchhoff rod theory with physics‐informed neural networks for the forward prediction and inverse design of ring origami consisting of closed‐loop rods. The framework predicts stable states of segmented rings with prescribed natural‐curvature profiles and determines the natural‐curvature profiles ...
Luyuan Ning   +3 more
wiley   +1 more source

Reconfigurable antenna pattern verification

open access: yes, 2013
A method of verifying programmable antenna configurations is disclosed. The method comprises selecting a desired antenna configuration from a plurality of antenna configuration patterns, with the selected antenna configuration forming at least one ...
Drexler, Jerome P.   +3 more
core  

Multi‐Stimuli Responsive Viologen‐Crosslinked Eutectogels Derived From Natural Deep Eutectic Solvents for Information Security and Motion Detection

open access: yesAdvanced Science, EarlyView.
Described herein is the development of an organic eutectic gel based on a deep eutectic mixture of naturally derived betaine and lactic acid. The eutectic gels exhibit reversible color‐switching in response to multiple stimuli including strain, UV light, and temperature, enabling advanced applications in information security, intelligent wearable ...
Zhiang Bai   +3 more
wiley   +1 more source

Antenna Study and Design for Ultra Wideband Communication Applications

open access: yes, 2006
PhDSince the release by the Federal Communications Commission (FCC) of a bandwidth of 7.5GHz (from 3.1GHz to 10.6GHz) for ultra wideband (UWB) wireless communications, UWB is rapidly advancing as a high data rate wireless communication technology.
Liang, Jianxin
core  

A Versatile‐Designable Framework for Active and Programmable Shape‐Morphing Soft Matter Systems: From Inverse Design to Closed‐Loop Control

open access: yesAdvanced Science, EarlyView.
A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu   +5 more
wiley   +1 more source

Hardware‐Attentive Programmable Fourier Ptychography Enables Task‐Adaptive Label‐Free Virtual Staining

open access: yesAdvanced Science, EarlyView.
Task‐adaptive programmable optics enables label‐free virtual staining through optical‐attention‐guided acquisition and reconstruction. By optimizing wavelength, illumination angle, exposure time, and imaging depth, the framework learns task‐relevant optical measurements, generating clinically interpretable virtual stains with improved fidelity, non ...
Tianyue He   +13 more
wiley   +1 more source

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