Results 91 to 100 of about 462,479 (185)

Molecular Basis for Activation to Inhibition Switching in Kv7.2 Channel Modulators

open access: yesAngewandte Chemie, Volume 138, Issue 42, 12 October 2026.
The paper describes the serendipitous discovery of chemical manipulation allowing the activator‐to‐inhibitor switching in Kv7.2 channel modulators. The molecular determinants driving this switch have been rationalized by multidisciplinary investigation encompassing synthetic and analytical chemistry, in silico methods, cryo‐EM analysis ...
Tania Ciaglia   +20 more
wiley   +2 more sources

Improving Fetal Single‐Voxel Magnetic Resonance Spectroscopy With Spectral Registration

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 6, Page 2578-2587, December 2026.
ABSTRACT Purpose To evaluate whether spectral registration improves spectral quality and quantification reliability in in vivo single‐voxel fetal brain MRS: Methods Fourteen fetal PRESS datasets were acquired at 3 T at TE = 35 ms and TE = 135 ms. Raw data were processed with eddy‐current phase correction, coil combination, spectral registration, and ...
Andres Saucedo   +2 more
wiley   +1 more source

A Noise Reduction Algorithm for White Noise and Periodic Narrowband Interference Noise in Partial Discharge Signals

open access: yesApplied Sciences
Partial discharge (PD) detection plays an important role in online condition monitoring of electrical equipment and power cables. However, the noise of PD measurement will significantly reduce the performance of the detection algorithm. In this paper, we
Jiyuan Cao   +3 more
doaj   +1 more source

Continuation of Periodic Solutions in Conservative Systems Leveraging the First Integral of Motion

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Dynamical systems are often analysed with respect to a system parameter, for which numerical continuation methods are typically used. In most cases, dissipative systems are considered. Here, the continuation of periodic solutions requires the existence of an explicit parameter that can be varied during the continuation process.
Julian Vogelei   +2 more
wiley   +1 more source

Face recognition based on manifold constrained joint sparse sensing with K-SVD

open access: yes, 2018
© 2018 Springer Science+Business Media, LLC, part of Springer Nature Face recognition based on Sparse representation idea has recently become an important research topic in computer vision community.
S. Ma (7758236)   +8 more
core  

Nonstationary Noise Suppression Based on Hankel Trace Matrix Decomposition and Imaging Method for UAV-GPR

open access: yesIEEE Access
Ground penetrating radar (GPR) is a geophysical technique used to detect shallow subsurface targets nondestructively. Integrating GPR onto an uncrewed aerial vehicle (UAV) platform enables remote, safe, and rapid detection of targets.
Menghao Zhu   +6 more
doaj   +1 more source

Beyond Directions: Symmetry‐Aware Rotation Sets for Triaxial Diffusion Encoding by Geometric Filter Optimization

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2489-2504, November 2026.
ABSTRACT Purpose To improve the accuracy of diffusion‐weighted powder average signals for diffusion encoding with arbitrary b‐tensors. Methods We identify an intrinsic dihedral (D2) symmetry of diffusion signals for arbitrary diffusion encoding, which defines their natural signal space (a quotient of 3D rotations). Based on this, we propose a method to
Sune Nørhøj Jespersen   +1 more
wiley   +1 more source

SVD-Based Image De-Nosing with the Minimum Energy Model

open access: yes, 2006
This paper proposes a new solution integrating energy function into singular value decomposition (SVD) for image de-noising. The singular values on the diagonal matrix obtained through SVD represent different components in image.
Shi ZL(史泽林)   +2 more
core  

An Improved Structured-Dictionary-Learning-Based Sparse SAR Imaging Algorithm

open access: yesRemote Sensing
Existing structured-dictionary-learning (SDL)-based sparse synthetic aperture radar (SAR) imaging methods suffer from insufficient artifact suppression, limited parameter adaptivity, and inadequate structure preservation during refined imaging under low ...
Jialu Lu   +5 more
doaj   +1 more source

Analisis Robustnes dan Imperceptibility pada Teknik Watermarking Citra Digital dengan DWT, SVD dan DWT-SVD [PDF]

open access: yes, 2019
Perlindungan pada gambar sangatlah penting untuk fotografer, dimana proses watermarking sangat diperlukan karena mempunyai beberapa metode untuk melindungi sebuah gambar.
Darpono, Rony
core  

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