Results 131 to 140 of about 45,199 (262)

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 40, Issue 3, Page 544-564, March 2026.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Biobased Bionic Spider Silk via Electrostatic Complexation for Simultaneously Harvesting Atmospheric Water and Triboelectric Energy

open access: yesAdvanced Functional Materials, Volume 36, Issue 23, 19 March 2026.
Bio‐based bionic spider silk and spider web are first prepared using polyelectrolyte complexation technique for the simultaneous harvesting of water and triboelectric energy. The advantage of this process lies on entirely bio‐based materials, fully green water‐processable procedures, extremely high production rate (99.36%), excellent fog harvesting ...
Qin Chen   +9 more
wiley   +1 more source

LoRa for multihop communication in internet of underground things under fading environments

open access: yesInternet of Things and Cyber-Physical Systems
This paper investigates the suitability of LoRa wireless technology for reliable underground-to-aboveground communication in the context of sustainable agricultural monitoring.
Irfana Ilyas Jameela Manzil   +2 more
doaj   +1 more source

Ultrasound in Women's Health: Mechanisms, Applications, and Emerging Opportunities

open access: yesAdvanced Materials, Volume 38, Issue 14, 6 March 2026.
As healthcare moves toward decentralization, ultrasound technologies are evolving from strictly imaging tools in clinical settings into versatile diagnostic and therapeutic platforms, with growing roles addressing women's health needs. This review highlights how ultrasound's underlying physical mechanisms can be harnessed to reduce disparities in women'
Sarah B. Ornellas   +7 more
wiley   +1 more source

Smart SPR Biosensors: Machine Learning‐Augmented Dual‐Channel PCF Technology

open access: yesAdvanced Photonics Research, Volume 7, Issue 3, March 2026.
The biosensor shows outstanding performance over a wide refractive index range (1.33–1.45), with wavelength sensitivity of 32 000 nm/RIU, amplitude sensitivity of 2338 RIU−1, and spectral resolution of 3.13 × 10−6 RIU. We present a modern dual‐channel surface plasmon resonance (SPR) biosensor that combines advanced photonic crystal fiber (PCF) design ...
Huraiya Md Abu   +6 more
wiley   +1 more source

Correction to "Rayleigh Fading Multi-Antenna Channels" [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
openaire   +1 more source

Depth‐Invariant High‐Resolution Optical Coherence Tomography Angiography

open access: yesAdvanced Photonics Research, Volume 7, Issue 3, March 2026.
Optical coherence tomography angiography (OCTA) has become an indispensable tool for visualizing and quantifying in vivo blood flow due to its motion‐contrast‐based label‐free flow detection capabilities. However, in various applications, its effectiveness is hindered by signal degradation due to scattering, absorption, and depth‐dependent defocus ...
ByungKun Lee   +4 more
wiley   +1 more source

Slow Frequency-Hopping Multicarrier DS-CDMA for Transmission over Nakagami Multipath Fading Channels

open access: yes, 2001
A novel multiple access scheme based on slow frequency hopping multicarrier direct-sequence code division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrowband CDMA ...
Hanzo, L., Yang, L-L.
core  

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