Results 131 to 140 of about 18,147 (273)

At the core of the interaction: Probing charged side chains in flexible protein regions with simultaneous nuclear magnetic resonance experiments

open access: yesProtein Science, Volume 35, Issue 4, April 2026.
Abstract Charged amino acid side chains are crucial mediators of biomolecular recognition, but their characterization by nuclear magnetic resonance (NMR) is often hindered by conformational and solvent exchange, particularly for arginine guanidinium groups.
Maria Anna Rodella   +6 more
wiley   +1 more source

HFDNN: A Hybrid Fusion Deep Neural Network for Robust Automatic Modulation Classification in Adverse Wireless Environments

open access: yesIEEE Access
Automatic Modulation Classification (AMC) plays a vital role in modern wireless communication systems, particularly in domains such as defense, the Internet of Things (IoT), and cognitive radio, where resilience to interference is essential.
Muhammad Muneeb Tahir   +4 more
doaj   +1 more source

Tri-Level Bit-Stream Signal Processing Circuits and Applications [PDF]

open access: yes, 2007
We present signal processing building blocks for trilevel bit-stream signal processing (BSSP). These architectures are the 2-bit extensions from the existing 1-bit BSSP circuit modules. It is shown that the 2-bit designs offer better performance than
Ng, CW, Ng, TS, Wong, N
core  

Conundrums of Localized Surface Plasmon Resonance Biosensors

open access: yesSmall, Volume 22, Issue 19, 1 April 2026.
Localized surface plasmon resonance (LSPR) biosensing faces fundamental conundrums arising from finite field decay lengths, environmental cross‐sensitivities, and batch variability. Competing surface, bulk, and electrostatic effects can induce red or blue spectral shifts, complicating quantification, reproducibility, and interpretation in complex or ...
Nikhil Bhalla
wiley   +1 more source

Harbor‐Induced Tidal Salinity Dispersion in Partially Stratified Estuaries

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract The contribution of tidal trapping to salt dispersion has been well described for well‐mixed estuaries, in terms of barotropic filling and emptying of the traps. How traps contribute to salt dispersion in deeper, partially stratified systems remains underexplored.
D. van Keulen   +2 more
wiley   +1 more source

M-ary Coded Mouldation Assisted Genetic Algorithm Based Multiuser Detection for CDMA Systems

open access: yes, 2003
In this contribution we propose a novel M-ary Coded Modulation assisted Genetic Algorithm based Multiuser Detection (CM-GA-MUD) scheme for synchronous CDMA systems.
Hanzo, L., Ng, S.X., Yen, K.
core  

Bayesian perspective for orientation determination in cryo‐EM with application to structural heterogeneity analysis

open access: yesActa Crystallographica Section D, Volume 82, Issue 4, Page 274-294, April 2026.
A Bayesian perspective on orientation estimation in cryo‐EM is presented, with the minimum mean‐square error estimator outperforming standard cross‐correlation‐based approaches, particularly under challenging low signal‐to‐noise conditions. We demonstrate that improved orientation estimation has a decisive impact on 3D reconstruction quality and ...
Sheng Xu   +3 more
wiley   +1 more source

Stationary and Nonstationary Influences of Teleconnections on Terrestrial Water Storage Anomalies in Vietnam

open access: yesJAWRA Journal of the American Water Resources Association, Volume 62, Issue 2, April 2026.
ABSTRACT Previous studies of teleconnection (TC) impacts on Terrestrial Water Storage Anomalies (TWSA) rarely focus on Vietnam or on the nonstationary nature of TC–TWSA relationships. This study addresses these gaps by examining both stationary and nonstationary TC influences on TWSA using correlation analysis (Pearson and cross‐spectral methods) and ...
Hoa Thi Pham   +2 more
wiley   +1 more source

Algebraic Multigrid Based Preconditioning Approaches for Generalized Continuum Models and Indirect Displacement Control Techniques

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 6, 30 March 2026.
ABSTRACT The contribution deals with algebraic multigrid (AMG) based preconditioning methods for the iterative solution of a coupled linear system of equations arising in numerical simulations of failure of quasi‐brittle materials using generalized continuum approaches.
Nasser Alkmim   +4 more
wiley   +1 more source

Codes for QPSK modulation with invariance under 90 degrees rotation [PDF]

open access: yes
The new rate 1/2 nonlinear convolutional codes for quadrature phase shift keying (QPSK) modulation allow the achievement of full 90 degree rotational invariance of coded QPSK signal sequences at no significant loss in real coding gains when compared to ...
Pietrobon, Steven S.   +1 more
core   +1 more source

Home - About - Disclaimer - Privacy