Results 91 to 100 of about 847,053 (257)

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

open access: yesAdvanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai   +3 more
wiley   +1 more source

Complexity analysis with chaos control: A discretized ratio-dependent Holling-Tanner predator-prey model with Fear effect in prey population.

open access: yesPLoS ONE
This study explores a novel two-dimensional discrete-time ratio-dependent Holling-Tanner predator-prey model, incorporating the impact of the Fear effect on the prey population.
Md Mutakabbir Khan, Md Jasim Uddin
doaj   +1 more source

Teleparallel torsion and white dwarf structure in

open access: yesPhysics Letters B
We investigate how quadratic torsion modifies the equilibrium structure of white dwarfs in covariant f ( T ) = T + Ξ T 2 gravity. Static spherical configurations are calculated with a fixed equation of state for cold carbon matter, including relativistic
Edson Otoniel   +2 more
doaj   +1 more source

Balinski-Tucker Simplex Tableaus: Dimensions, Degeneracy Degrees, and Interior Points of Optimal Faces

open access: yes, 2008
This paper shows the relationship between degeneracy degrees and multiplicities in linear programming models. The usual definition of degeneracy is restricted to vertices of a polyhedron. We introduce degeneracy for nonempty subsets of polyhedra and show
Gerard Sierksma, Gert A. Tijssen
core  

Carleman estimates, observability inequalities and null controllability for interior degenerate non smooth parabolic equations [PDF]

open access: yes, 2016
We consider a parabolic problem with degeneracy in the interior of the spatial domain, and we focus on observability results through Carleman estimates for the associated adjoint problem. The novelties of the present paper are two.
Mugnai Dimitri, FRAGNELLI, Genni
core   +1 more source

Phase‐Resolved Dual Control of Phenol Photodissociation at the Air–Water Interface From Structure‐Resolved Statistics

open access: yesAdvanced Science, EarlyView.
Faster phenol photolysis at the air–water interface arises from two cooperative factors: a more favorable initial microenvironment for solvent‐side electron stabilization, which lowers CI access, and a more labile hydrogen‐bond network, which more readily reorganizes to stabilize the dark‐state intermediate.
Qiang Yin   +8 more
wiley   +1 more source

Dirac tuning and boundary-induced topological robust transmission in symmetric honeycomb optical waveguide networks

open access: yesMaterials & Design
Topological valley Hall photonic structures enable low-loss, robust light propagation without external excitation, emerging as a critical frontier for integrated photonic chips. Here we propose multi-connected honeycomb optical waveguide networks (OWNs),
Xiaohui Xu, Wanting Qiu, Yan Zhi
doaj   +1 more source

Plaid‐Like Spin Splitting and Chirality of Magnon Bands in Antiferromagnetic MnTe2

open access: yesAdvanced Science, EarlyView.
Helicity‐ and angle‐resolved Raman spectroscopy reveals chiral magnons in the non‐coplanar antiferromagnet MnTe 2. Combined with first‐principles calculations and spin‐wave theory, the results establish its altermagnetic character through circular Raman dichroism, reduced rotational symmetry, and a distinctive plaid‐like momentum‐space magnon spin ...
Dirk Wulferding   +10 more
wiley   +1 more source

Role of Magma Oceans in Controlling Carbon and Oxygen of Sub-Neptune Atmospheres

open access: yesThe Astrophysical Journal
Most exoplanets with a few Earth radii are more inflated than bare-rock planets with the same mass, indicating a substantial volatile amount. Neither the origin of the volatiles nor the planet’s bulk composition can be constrained from the mass–radius ...
Chanoul Seo, Yuichi Ito, Yuka Fujii
doaj   +1 more source

A new proof of the degeneracy property of the longest-edge n-section refinement scheme for triangular meshes

open access: yes, 2012
In this note, by using complex variable functions, we present a new simpler proof of the degeneracy property of the longest-edge n-section of triangles for n≥4.
Plaza, Ángel, Perdomo, Francisco
core   +1 more source

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