Results 21 to 30 of about 119 (119)
Advanced Theory and Simulations, EarlyView.The seal louse Echinophthirius horridus has uniquely shaped setae that may reduce drag during its host's dives. Using numerical simulations, this study demonstrates that their natural inclination promotes vortex formation, minimizing friction and energy loss. These findings provide insights into biological surface adaptations and may inspire the design
Anika Preuss +3 more
wiley +1 more source
Energy Symmetry Breaking of Dirac and Weyl Fermions in Magnetized Spinning Conical Geometries
Advanced Theory and Simulations, EarlyView.Exact solutions for relativistic fermions in magnetized, spinning conical geometries reveal defect‐induced symmetry breaking between fermion and antifermion energies. Energy levels depend on the magnetic field, background geometry, and fractionalized spin. When the defect's spin dominates, quantum effects diminish.
Abdullah Guvendi, Omar Mustafa
wiley +1 more source
Advanced Theory and Simulations, EarlyView.This work presents a combined analytical–computational approach to quantify the influence of aspect ratio and anisotropic orientation on the percolation behavior of penetrable rectangles. The proposed model reliably predicts the geometric percolation threshold and electrical conductivity of 2D networks, with power‐law fits showing strong agreement with
Danvendra Singh +5 more
wiley +1 more source
Substrate‐Restricted Asymmetric Evolution of Solid‐State Nanopores
Advanced Theory and Simulations, EarlyView.Standalone nanopores can either expand or shrink based on the nucleation mechanism. A substrate‐restricted asymmetric pore dynamics are uncovered ‐ top expansion and bottom shrinkage, with minimum aperture reduced and forming a conical geometry, driven by molecular migration along an energy potential gradient within nanopores.
Hongshuai Liu +4 more
wiley +1 more source
Observation of Localized Resonant Phonon Polaritons in Biaxial α‐MoO3 Nanoparticles
Advanced Science, EarlyView.Biaxial α‐MoO3 nanoparticles exhibit tunable, high‐Q mid‐infrared resonances driven by localized phonon polaritons. Combining a novel synthesis method, hyperspectral near‐field imaging and a unified theoretical analysis, this work reveals eigenmodes and resonance conditions in biaxial particles.
Daniel Beitner +7 more
wiley +1 more source
Advanced Science, EarlyView.It is synthesized precision‐arranged DNA origami plasmonic nanoantennas for multiplexed and intelligent warning of bone loss induced by microgravity and radiation. The ordered nanoantennas simultaneously and accurately detected calcium ions, interleukin‐6, and microRNA‐214 in serum from mice exposed to microgravity and radiation, with performance ...
Yufan Ling +14 more
wiley +1 more source
Thermal Control of Vortex Motion in Nanoscale Superconductors
Advanced Electronic Materials, EarlyView.Vortices in superconducting film can be thermally steered by a local heating from a tip. The work shows that the vortex is attracted by the hot spot by a force that emulates an electric field resulting in a fictious Lorentz‐force on the vortex. Abstract Thermally induced motion of vortices in nanoscale superconductors (SCs) is investigated.
Björn Niedzielski, Jamal Berakdar
wiley +1 more source
Advanced Electronic Materials, EarlyView.This work presents a physics‐based DC compact model of an Organic Electrochemical Transistor (OECT) that takes into account the faradaic redox reaction in the above threshold regime and incorporates the diffusive current of the subthreshold regime based on semiconductor physics.
Ermias Telahun Teka +6 more
wiley +1 more source
Stability of Organic Photovoltaics: From Root Causes to Advanced Analytical Techniques
Advanced Energy Materials, EarlyView.This review explains the causes and mechanisms of degradation in organic photovoltaics (OPVs). It explores how various factors, including heat, light, oxygen, and inherent material properties, influence OPV stability. The study categorizes degradation pathways and analyzes their impact on device performance, providing insights into the fundamental ...
Yelim Choi +6 more
wiley +1 more source
Dispersion of First Sound in a Weakly Interacting Ultracold Fermi Liquid
Annalen der Physik, EarlyView.The weak‐interaction, low‐temperature region of the phase diagram of a Fermi gas the so‐called Fermi liquid regime, which has been somewhat overlooked in ultracold gases‐is investigated. Precise and measurable predictions are presented for the viscosity and dispersion of first sound to leading order in the scattering length.
Thomas Repplinger +4 more
wiley +1 more source