Results 91 to 100 of about 1,363 (214)
Biodegradable, Biologically Safe Nanogenerators for Self‐Powered Bio‐Integrated Systems
Small Structures, Volume 7, Issue 8, August 2026.Biodegradable TENGs, PENGs, and hybrid systems convert biomechanical motions into electrical signals while safely degrading after use. This review highlights their working mechanisms, biodegradable material platforms, and wearable and implantable bio‐integrated applications, including motion and respiration monitoring, biosignal detection, electrical ...
Sungkeun Han +5 more
wiley +1 more source
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract Accurate characterization of the compressional to shear (P‐to‐S) wave‐speed ratio (vp/vs ${v}_{p}/{v}_{s}$) within the Antarctic Ice Sheet (AIS) is crucial for understanding its internal structure, mechanical stability, and vulnerability to a changing climate.
Ammu Sanjayan +2 more
wiley +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.Abstract Snow on sea ice modulates the Earth's radiation budget and sea ice mass balance, yet satellite retrievals of Arctic snow depth remain subject to substantial algorithmic uncertainty. We develop a multi‐model machine learning (ML) framework for retrieving spring snow depth over Arctic sea ice from Advanced Microwave Scanning Radiometer 2 (AMSR2).
Yi Zhou +6 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Edges of sedimentary basins generate complex seismic wavefield effects and localized amplification. Characterizing these effects and incorporating them into hazard models is difficult because tomographic models are often smooth and wavefield observations are often aliased.
J. Atterholt +3 more
wiley +1 more source
Estimation of glottal closure instants in voiced speech using the DYPSA algorithm [PDF]
, 2007 Published ...
Naylor, P A +3 more
core +1 more source
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract The NASA/CNES Surface Water and Ocean Topography (SWOT) swath‐mapping radar altimetry satellite mission, launched in December 2022, provides repeat‐track coverage to about ±78.2° latitude every 21 days, sampling many of Antarctica's most dynamic ice shelves that play key roles in constraining mass loss from the grounded ice sheet ...
S. L. Howard +5 more
wiley +1 more source
Waveform design for spaceborne synthetic aperture radar [PDF]
, 1999 Synthetic Aperture Radar (SAR), which was first developed in the 1950's as a technique for improving the resolution of military reconnaissance radar, has rapidly matured as a remote sensing tool for a wide range of civilian applications.
Lee, Woo Kyung
core
A Delayed Return Stroke Driven by Channel Charge Accumulation
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Based on combined VHF interferometer and fast/slow antenna measurements, we document an abnormal bolt‐from‐the‐blue lightning flash, which included two strokes. There are four successive attempted dart leaders following the first return stroke. The last detected downward leader stopped advancing at approximately 94 m and decayed.
Zhengqi Wang +12 more
wiley +1 more source
A FIELD-PROGRAMMABLE GATE ARRAY IMPLEMENTATION OF A COGNITIVE RADAR TARGET RECOGNITION SYSTEM [PDF]
, 2021 The objective of this study is to design a field-programmable gate array (FPGA) implementation of a cognitive radar (CRr) target recognition system for electronic warfare applications.
Sessions, Calvin A.
core
Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning
Nanophotonics, Volume 15, Issue 14, 27 July 2026.This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen +3 more
wiley +1 more source