Results 131 to 140 of about 66,835 (307)

Bandpass Filter Pair

open access: yes
This image reflects a hand drawn schematic of the Bandpass Filter ...

core  

Sampling Criterion For Nonlinear Systems

open access: yes, 2001
Sampling requirements for nonlinear systems with a bandpass input are developed in this paper. It is well known that the output of a nonlinear system may have a larger bandwidth than that of the input.
With Bandpass Input
core  

Facile Fabrication of Low‐Impedance, Highly Conformal Epidermal Electrodes Based on Laser‐Induced Graphene–Silver Nanocomposites

open access: yesAdvanced Science, EarlyView.
A facile laser‐induced graphene–silver nanocomposite strategy enables ultrathin epidermal electrodes with low impedance, high conductivity, and excellent mechanical robustness. The porous LIG–Ag conductive network mechanically interlocked with SEBS provides stable, motion‐resistant biopotential monitoring, enabling high‐fidelity ECG, EMG, and EEG ...
Jiuqiang Li   +6 more
wiley   +1 more source

Compact S-shaped resonator loaded waveguide bandpass filters

open access: yes, 2009
Novel class of E-Plane, all-metal-insert filter structure with improved stopband performance and compactness using S-shaped resonators has been proposed.
Budimir, D., Suntheralingam, N.
core  

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Self‐Adhesive Conductive Elastomers for Gel‐Free Biopotential Recording

open access: yesAdvanced Electronic Materials, EarlyView.
σPOMaC, a self‐adhesive conductive citrate elastomer incorporating PEDOT:PSS and DBSA, enables gel‐free biopotential electrodes with stable conductivity and intrinsic skin adhesion. The composite exhibits low resistivity (∼ 0.02 Ω·cm), robust electrical performance during repeated use, and reliable on‐body ECG acquisition comparable to Ag/AgCl ...
Kirstie M. K. Queener   +7 more
wiley   +1 more source

Dual Impact of Long‐Lived Localized Carriers Induced by Restricted Hole Transfer in Organic Photovoltaics and Photocatalytic Hydrogen Evolution

open access: yesAdvanced Energy Materials, EarlyView.
This work clarifies why organic semiconductors perform differently in photovoltaic devices and photocatalytic nanoparticles. By examining D18:Y5 and PM6:Y6 systems, we show how aggregation, exciton lifetime, and interfacial charge transfer behavior govern energy‐conversion pathways.
Gayoung Ham   +14 more
wiley   +1 more source

Tunable lumped-element bandpass filters with constant bandwidth

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2015
Lumped-element bandpass filters using LC-tanks and immittance inverters are considered. Tuning of the central frequency is provided by using variable capacitors of LC-tanks and immittance inverters.
A. E. Baskakova   +2 more
doaj  

Automatic Determination of Quasicrystalline Patterns from Microscopy Images

open access: yesAdvanced Intelligent Discovery, EarlyView.
This work introduces a user‐friendly machine learning tool to automatically extract and visualize quasicrystalline tiling patterns from atomically resolved microscopy images. It uses feature clustering, nearest‐neighbor analysis, and support vector machines. The method is broadly applicable to various quasicrystalline systems and is released as part of
Tano Kim Kender   +2 more
wiley   +1 more source

Localized Accumulation of Tri‐n‐Propylamine Prolongs Electrochemiluminescence for Tumor Model Spheroid Analysis

open access: yesAngewandte Chemie, EarlyView.
Here, we enhance the electrochemiluminescence imaging of cellular spheroids using [Ru(bpy)3]2+/TPrA chemistry. Our strategy, which involves pre‐incubation with TPrA, enables high‐resolution, long‐term visualization of cellular spheroids without phototoxicity.
Vanshika Gupta   +5 more
wiley   +2 more sources

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