Results 121 to 130 of about 2,157,914 (307)

The Extended Hadamard Transform: Sensitivity-Enhanced NMR Experiments Among Labile and Non-Labile ¹ Hs of SARS-CoV-2-derived RNAs. [PDF]

Chemphyschem, 2022
Kim J, Novakovic M, Jayanthi S, Lupulescu A, Kupče Ē, Grün JT, Mertinkus K, Oxenfarth A, Schwalbe H, Frydman L.   +9 more
europepmc   +1 more source

Cartesian MaxGIRF: Model‐based EPI reconstruction incorporating gradient nonlinearity and concomitant field effects

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 1044-1067, February 2026.
Abstract Purpose Lower field strength scanners with large bore size or complex geometries, and scanners with stronger gradient systems experience increased gradient nonlinearity and concomitant fields, each of which causes distortions in EPI. Current correction approaches based on image‐domain interpolation introduce undesirable spatial blurring.
Nam G. Lee, Sophia X. Cui, Krishna S. Nayak   +2 more
wiley   +1 more source

Application of Enhanced Hadamard Error Correcting Code in Video-Watermarking and his comparison to Reed-Solomon Code

MATEC Web of Conferences, 2017
Error Correcting Codes are playing a very important role in Video Watermarking technology. Because of very high compression rate (about 1:200) normally the watermarks can barely survive such massive attacks, despite very sophisticated embedding ...
Dziech Andrzej, Wassermann Jakob
doaj   +1 more source

Generalized Hyers–Ulam Stability of Laplace Equation With Neumann Boundary Condition in the Upper Half‐Space

Mathematical Methods in the Applied Sciences, Volume 49, Issue 2, Page 521-530, 30 January 2026.
ABSTRACT This paper investigates the generalized Hyers–Ulam stability of the Laplace equation subject to Neumann boundary conditions in the upper half‐space. Traditionally, Hyers–Ulam stability problems for differential equations are analyzed by examining the system's error, particularly in relation to a forcing term.
Dongseung Kang, Hoewoon B. Kim, Dojin Kim   +2 more
wiley   +1 more source

Computationally Efficient Robust Color Image Watermarking Using Fast Walsh Hadamard Transform

Journal of Imaging, 2017
Watermark is the copy deterrence mechanism used in the multimedia signal that is to be protected from hacking and piracy such a way that it can later be extracted from the watermarked signal by the decoder.
Suja Kalarikkal Pullayikodi, Naser Tarhuni, Afaq Ahmed, Fahad Bait Shiginah   +3 more
doaj   +1 more source

In Vivo Glx Measurements From GABA‐Edited HERMES at 3 T Are Not Consistent With Those From Short‐TE PRESS Across Scanners, Brain Regions, Diagnostic and Age Groups

NMR in Biomedicine, Volume 39, Issue 1, January 2026.
We evaluate the agreement between Glx (Glutamine plus Glutamine) estimates obtained from HERMES GABA‐DIFF (blue) and SUM spectra with Glx derived from short‐TE PRESS (TE = 35ms; green). Data was acquired from 139 participants, across two voxels (ACC and thalamus), three different scanners and multiple age and diagnostic groups (adults/preschoolers and ...
Alice R. Thomson, Viola Hollestein, Amy Goodwin, Anne Fritz, Beth Oakley, Declan Murphy, Edward Bullock, Ellen Demurie, Eva Loth, Giorgia Bussu, Herbert Roeyers, Isabel Yorke, Jan K. Buitelaar, Julia Koziel, Laura Colomar, Manon A. Krol, Matthew Bowdler, Nele Herregods, Pascal Aggensteiner, Pim Pullens, Rosemary Holt, Terje Falck‐Ytter, Tony Charman, Tomoki Arichi, Nicolaas A. Puts   +24 more
wiley   +1 more source

Hybrid Precoding-Beamforming Design With Hadamard RF Codebook for mmWave Large-Scale MIMO Systems

IEEE Access, 2017
This paper proposes a hybrid structure for multi-stream large-scale multi-input multi-output (MIMO) beamforming systems, in single-user scenario, using a Hadamard radio frequency (RF) codebook with low-bit resolution phase shifters. We show that Hadamard
Hussein Seleem, Ahmed Iyanda Sulyman, Abdulhameed Alsanie   +2 more
doaj   +1 more source

Redox behavior of tin in aluminosilicate melts: Implications for the fining process

International Journal of Applied Glass Science, Volume 17, Issue 1, January 2026.
Abstract Aluminosilicate glasses are widely used in everyday applications and can be seen as building blocks of modern technology, from display screens to glass‐ceramics. However, due to their high viscosities, gas bubbles can only be removed from aluminosilicate melts at high temperatures, leading to significant energy costs.
Adrien Donatini, Peggy Georges, Tiphaine Fevre, Laurent Cormier, Daniel R. Neuville   +4 more
wiley   +1 more source

Efficient Hyperreduction for Large‐Scale Problems: Exploiting Reducible Constraint Manifolds in Empirical Quadrature Procedure

International Journal for Numerical Methods in Engineering, Volume 126, Issue 23, 15 December 2025.
ABSTRACT We develop efficient hyperreduction methods for projection‐based model reduction of nonlinear partial differential equations (PDEs) with a large number of parameters and/or large parametric extents. Our formulation is based on the empirical quadrature procedure (EQP), which solves an optimization problem that involves “residual‐matching ...
Adrian Humphry, Masayuki Yano
wiley   +1 more source

Property Optimization of Mn–Ni–Al Oxide Thermistors via an Integrated Framework of Efficient Composition Exploration and Image Analysis

Advanced Materials Interfaces, Volume 12, Issue 24, December 22, 2025.
In Mn–Ni–Al oxide thermistor materials, we combine efficient composition‐space sampling with convolutional neural networks trained on multimodal Scanning Electron Microscopy – Energy Dispersive X‐ray Spectroscopy (SEM‐EDS) images to construct models predicting resistance and B constant, revealing spinel‐like microstructural regions that control ...
Yo Kato, Keisuke Makino, Shogo Hashimura, Nozomi Arakawa, Hayami Takeda, Naoto Tanibata, Masanobu Nakayama, Naohiro Niizeki, Takayuki Nakaya   +8 more
wiley   +1 more source