Results 211 to 220 of about 73,998 (302)

Dual Variational Problems and Action Principles for Chen–Lee and Hopf–Langford Systems

Mathematical Methods in the Applied Sciences, Volume 49, Issue 4, Page 2456-2462, 15 March 2026.
ABSTRACT We describe the construction of dual variational principles and action functionals for nonlinear dynamical systems using a methodology based on the dual Lagrange multiplier formalism and a convex optimization approach, to derive families of dual actions that correspond to the given nonlinear ordinary differential system.
A. Ghose‐Choudhury, Partha Guha
wiley   +1 more source

Enhancing Robustness of Variational Data Assimilation in Chaotic Systems: An α-4DVar Framework with Rényi Entropy and α-Generalized Gaussian Distributions. [PDF]

Entropy (Basel)
Luo Y, Cao X, Peng K, Zhou M, Guo Y.
europepmc   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Hidden in plain heat: anomalous Lorenz number in the thermoelectric alloy Bi_0.4Sb_1.6Te₃. [PDF]

Nat Commun
Candolfi C, Wiendlocha B, Ohorodniichuk V, Levinský P, Migot S, Steciuk G, Terzi I, Wieder A, Dauscher A, El Oualid S, Lenoir B.   +10 more
europepmc   +1 more source

Sustainable Framework for Thermoelectric Inorganic‐In‐Organic Superlattices With High Power Factor and Selective P‐ or N‐Type Doping

Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
By multilayering poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate with metal nanolayers into a superlattice structure, we report an enhancement to the thermoelectric performance of two orders of magnitude, achieving a peak power factor of 2800 µW m−1 K−2.
James G. Neil, José V. Anguita, Adna Smajlovic, Hidetsugu Shiozawa, Joy Mitra, Soumyadip Hazra, Charles J. Footer, S. Ravi P. Silva   +7 more
wiley   +1 more source

Wage gap among Iranian nurses: a decomposition analysis in Southern Iran. [PDF]

Hum Resour Health
Bayati M, Keshavarzi A, Majidpour Azad Shirazi A.   +2 more
europepmc   +1 more source

Low‐intensity prescribed fire has no immediate impact on soil physical and chemical properties or enzymatic activity in the Post Oak Savanna ecoregion, Texas, USA

Agrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract The historic development of the Post Oak Savanna ecoregion in Texas, USA, was shaped by natural wildfires. However, wildfire suppression has caused an increase in encroaching woody species. To address this issue, land management strategies incorporate prescribed fire (PF) for the control of encroaching species.
Kathryn L. Watson, Jordan E. Gignac, Alejandro Atenas Navarrete, Leila Joharzadeh, Bismark Osei, Dinesh Phuyal, Chiranjibi Poudyal, Mingxiu Wang, Larissa Watkins, Opeyemi Alabi, Siddhartha Shankar Bhattacharyya, Nicholas Boogades, Achla Jha, Deepa Khadka, Dallas M. Williams, A. Peyton Smith, Briana M. Wyatt   +16 more
wiley   +1 more source

MSLNet and Perceptual Grouping for Guidewire Segmentation and Localization. [PDF]

Sensors (Basel)
Barbu A.
europepmc   +1 more source

Tandem genomic selection with independent culling to improve sorghum hybrid adaptation to the eastern United States

Crop Science, Volume 66, Issue 2, March/April 2026.
Abstract Objectively selecting genotypes using genomic predictions for multiple traits warrants more empirical research. This study investigated how deployment of genomic prediction within the Clemson sorghum [Sorghum bicolor (L.) Moench] breeding program would help to develop hybrids adapted to the eastern United States.
R. E. Boyles, C. Ballén‐Taborda, M. A. Conti, S. Sapkota, J. L. Boatwright, S. Kresovich, Z. W. Brenton   +6 more
wiley   +1 more source

A cross-country analysis of feasible income equality using the sigmoid function and the Boltzmann distribution. [PDF]

PLoS One
Sitthiyot T, Holasut K.
europepmc   +1 more source