Results 91 to 100 of about 1,242,170 (229)

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

open access: yesAdvanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee   +6 more
wiley   +1 more source

Bio‐Derived Polyelectrolyte Additive–Induced Interfacial Ion‐Diffusion Barriers for Nonvolatile Organic Artificial Synapses

open access: yesAdvanced Functional Materials, EarlyView.
Sodium alginate regulates interfacial ion transport and retention in electrolyte‐gated synaptic transistors. The carboxylate‐rich polymeric network forms a dynamic interfacial ion‐diffusion barrier that facilitates ion injection during programming while suppressing ion back‐diffusion, thereby stabilizing the electrochemically doped channel state.
Chaeyeon Han   +6 more
wiley   +1 more source

Body temperature-triggered phase change dry electrode for long-term comfort electroencephalography monitoring

open access: yesNational Science Open
Electrodes are crucial for long-term electroencephalography (EEG) monitoring. Dry electrodes eliminate issues of dehydration, skin irritation, and non-reusability that are associated with wet electrodes.
Wang Zekai, Yi Haokun, Li Zhuo
doaj   +1 more source

Improved Rate Capability for Dry Thick Electrodes Through Finite Elements Method and Machine-Learning Coupling [PDF]

open access: yes
A coupled Finite Elements Method (FEM) and Machine-Learning (ML) workflow is presented to optimize the rate capability of thick positive electrodes (ca. 150 µm and 8 mAh/cm²).
Minghao, Zhang   +4 more
core   +2 more sources

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang   +12 more
wiley   +1 more source

Nanostructured Electrodes for Organic Solar Cells: Analysis and Design Fundamentals [PDF]

open access: yes, 2012
Nanostructured electrodes (NEs) improve optical absorption and charge collection in photovoltaic (PV) devices. Traditionally, the electrodes have been designed exclusively for higher optical absorption.
Alam, Muhammad A.   +3 more
core   +1 more source

Structural Power Composites Based on High Mass Loading Zn‐Ion Hybrid Supercapacitors with Metal Mesh Current Collectors and Aramid Nanofiber/Glass Fiber Composite Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
A multifunctional structural power composite is developed by integrating high‐mass‐loading Zn‐ion hybrid supercapacitors with metal mesh current collectors and aramid nanofiber‐based composite electrolytes, enabling simultaneous load‐bearing capability and enhanced areal energy storage.
Yuseung Choi   +8 more
wiley   +1 more source

The Dry Revolution: Evaluation of Three Different EEG Dry Electrode Types in Terms of Signal Spectral Features, Mental States Classification and Usability

open access: yesSensors, 2019
One century after the first recording of human electroencephalographic (EEG) signals, EEG has become one of the most used neuroimaging techniques. The medical devices industry is now able to produce small and reliable EEG systems, enabling a wide variety
Gianluca Di Flumeri   +5 more
doaj   +1 more source

Thick film screen printed environmental and chemical sensor array reference electrodes suitable for subterranean and subaqueous deployments [PDF]

open access: yes, 2013
Purpose - Thick film environmental and chemical sensor arrays designed for deployment in both subterranean and submerged aqueous applications are reported.Design/methodology/approach - Various choices of materials for reference electrodes employed in ...
Atkinson, John   +11 more
core   +1 more source

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

open access: yesAdvanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park   +12 more
wiley   +1 more source

Home - About - Disclaimer - Privacy