Results 71 to 80 of about 2,499 (159)

Fourier Expansion‐Based Approach to the Parameter Space of Classical Systems

Annalen der Physik, Volume 538, Issue 7, July 2026.
ABSTRACT We propose a new approach to compute the classical metric tensor (CMT) and the Hannay curvature using Fourier series expansions in action‐angle variables. This approach circumvents the need for complex time‐domain integrals or the construction of generating functions, replacing them with algebraic combinations of Fourier coefficients. We prove
Marcos J. Hernández, Daniel Gutiérrez‐Ruiz, Diego Gonzalez, J. David Vergara   +3 more
wiley   +1 more source

Moiré Folded Helical States at the Interfaces of Heterostructures

Advanced Physics Research, Volume 5, Issue 7, July 2026.
This manuscript explores a minimal ladder model of a graphene‐topological‐insulator heterostructure where moiré superlattices modulate Rashba spin‐orbit coupling. The study reveals that SOC lifs spin degeneracy, halves spectral periodicity, and induces “helicity fragmentation” across moiré minibands.
Paula Mellado
wiley   +1 more source

Comparative field‐scale assessment of TLUD and Kon‐Tiki biochar systems: agronomic performance and net CO2e‐based techno‐economics

Biofuels, Bioproducts and Biorefining, Volume 20, Issue 4, Page 1762-1780, July/August 2026.
Abstract Post‐harvest agricultural residues in Latin America are commonly underutilized, leading to greenhouse gas emissions and lost opportunities for bio‐based value creation. This study tests the hypothesis that decentralized, farmer‐scale pyrolysis technologies can deliver comparable agronomic benefits while exhibiting distinct techno‐economic and ...
Juan F. Saldarriaga, Thomas Käslin, Enara Fernández, Maider Amutio, Gartzen López, Laura Santamaria, Nausika Querejeta, Julián E. López   +7 more
wiley   +1 more source

A Fully Automated Pipeline for Vertebral Structural Assessment From Medical Images. Application Under Metastatic Conditions

International Journal for Numerical Methods in Biomedical Engineering, Volume 42, Issue 7, July 2026.
We present an automated CT‐to‐simulation workflow to estimate structural response and fracture risk in metastasis‐affected vertebrae. Deep learning performs vertebral identification and segmentation, while CPD assigns geometry‐aware boundary conditions.
B. Gandia‐Vañó, J. M. Navarro‐Jiménez, J. J. Ródenas, E. Arana, E. Nadal   +4 more
wiley   +1 more source

Aplicación de la ingeniería de matrices en la fortificación de mango (var. Tommy atkins) con calcio

Dyna, 2007
La presente investigación analiza la respuesta a la impregnación a vacío en la estructura del mango var. Tommy Atkin y cuantifica los niveles de Ca+2 alcanzados en el producto enriquecido. Se diseñó una disolución de impregnación a partir de Sacarosa y
MISAEL CORTÉS RODRÍGUEZ, LUÍS FERNANDO GUARDIOLA, ROGER PACHECO   +2 more
doaj  

Exploring Costa Rica's fungal trends: Insights from digitized specimens

PLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1256-1274, July 2026.
Fungi are essential to tropical ecosystems but remain largely absent from conservation agendas. By analyzing over 78,000 fungal records from Costa Rica—a globally recognized biodiversity hotspot—this study reveals key patterns in fungal diversity, distribution, and seasonality.
Melissa Mardones, Julieta Carranza‐Velázquez, Carlos Rojas   +2 more
wiley   +1 more source

Mechanistic Insight into H2S‐Induced Fluorescence Quenching in a Robust Metal–Organic Framework

Small, Volume 22, Issue 39, 13 July 2026.
An ultramicroporous Zn‐based metal‐organic framework, MFM‐520, enables reversible hydrogen sulfide adsorption and selective fluorescence sensing. Confinement of H2S within the pores perturbs ligand‐centered excited states through weak host‐guest interactions, enhancing non‐radiative decay pathways.
Valeria B. López‐Cervantes, Juan L. Obeso, J. Gabriel Flores, Ricardo A. Peralta, José Antonio de los Reyes, Jiangnan Li, Sihai Yang, Elodie Strupiechonski, Andrés De Luna Bugallo, Aída Gutiérrez‐Alejandre, Yoarhy A. Amador‐Sánchez, Diego Solis‐Ibarra, Ilich A. Ibarra   +12 more
wiley   +1 more source

Red‐Pi: A Low‐Cost Red Teaming Platform for Water Infrastructure Security Assessment

SECURITY AND PRIVACY, Volume 9, Issue 4, July/August 2026.
ABSTRACT The water and wastewater sector faces growing cyber threats due to rapid digitalization and the use of IoT‐based control systems. Many utilities manage essential services that affect public health and the environment but do not have enough cybersecurity staff and cannot afford regular security tests.
Agustin Di Bartolo, Mohammadhossein Homaei, Pablo García Rodríguez, José Carlos Sancho Núñez, Andrés Caro Lindo, María Mar Ávila Vegas   +5 more
wiley   +1 more source

Diseñe su interfaz gráfica con Matlab

Ingeniería e Investigación, 1998
Las aplicaciones de carácter científico o tecnológico cuentan, para su desarrollo, con el apoyo de una poderosa herramienta de cálculo numérico, que permite abordar problemas que demanden variada y compleja manipulación matemática de manera eficiente y ...
Miguel Ramón Ortegón Gutiérrez
doaj  

Instability of Gas‐Phase‐Assembled Pd–Fe Alloy Nanoparticles Under Ambient Conditions: Pd/FeOx Core–Shell Formation and Magnetic and Hydrogen‐Sensing Consequences

Small Structures, Volume 7, Issue 7, July 2026.
Pd–Fe nanoparticles exhibit Fe segregation that, upon exposure to ambient conditions, leads to the formation of Pd/FeOx core–shell structures. The resulting ultrathin FeOx shells induce glassy magnetic behavior in nanoparticle films. These results demonstrate how intrinsic segregation combined with oxidation governs the structure and magnetic ...
Moisés G. Zarzoza Medina, Raúl López‐Martín, Benito Santos Burgos, Santiago Ceballos, Óscar J. Durá, Irene Morales, Beatrice Muzzi, José F. Marco, Miguel A. Arranz, Panagiotis Grammatikopoulos, Daniel Salazar, Peter S. Normile, José A. De Toro   +12 more
wiley   +1 more source