Results 71 to 80 of about 240 (216)

Field‐Programable Dynamics in a Soft Magnetic Actuator Enabling True Random Number Generation and Reservoir Computing

open access: yesAdvanced Intelligent Systems, EarlyView.
Complex dynamics, often avoided in electromechanical design, can enhance soft robotics. We develop durable magnetic soft actuators operating in tunable dynamic regimes, enabling random number generation, stochastic computing, and time‐series prediction.
Eduardo Sergio Oliveros‐Mata   +14 more
wiley   +1 more source

Discovery of a Barium Blue Straggler Star in M67 and “Sighting” of Its White Dwarf Companion

open access: yesThe Astrophysical Journal Letters
We report the discovery of a barium blue straggler star (BSS) in M67, exhibiting enhancements in slow neutron-capture ( s -)process elements. Spectroscopic analysis of two BSSs (WOCS 9005 & WOCS 1020) and four stars located near the main-sequence turn ...
Harshit Pal   +3 more
doaj   +1 more source

Light‐Modulated Exchange Bias in Multiferroic Heterostructures

open access: yesElectron, EarlyView.
In this article, exchange bias and magnetization are modulated with visible light at room temperature in PMN‐PZT/FeGa/IrMn multiferroic heterostructures. Photostrictive effect is the main mechanism leading to the modulation of magnetic anisotropy and interfacial exchange bias coupling between the ferromagnetic and antiferromagnetic layers.
Huan Tan   +9 more
wiley   +1 more source

Drivers and Challenges of Micro‐Irrigation Adoption and Intensity in India: A Study of Four States

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT India's food security relies substantially on groundwater, but inefficient irrigation is seriously depleting this resource. Micro‐irrigation (MI) improves irrigation application efficiency and productivity, yet adoption remains low. This study examines MI adoption across four major Indian states—Uttar Pradesh, Maharashtra, Madhya Pradesh and ...
Gurpreet Singh   +2 more
wiley   +1 more source

New parameters for star-cluster dynamics: Observational results

open access: yesAstronomy & Astrophysics
We recently used a large set of Monte Carlo simulations of globular clusters (GCs) to define new, fully empirical parameters (named A51, P51, and S2.5) able to trace the internal dynamical evolution of dense stellar systems.
Lanzoni B., Ferraro F. R., Vesperini E.
doaj   +1 more source

Models of DG‐Carbon Bands in Raman Spectra: Effects of Basis Functions and Initial Values on the Uniqueness and S/N of Fits Obtained for Atmospheric Aerosol Using Automated Methods

open access: yesJournal of Raman Spectroscopy, EarlyView.
Raman spectra containing D/G features are fit using combinations of basis functions and initial conditions. Fits with two Lorentzian functions converged to a single optimized fit even with variation of initial peak positions. For five‐band fits, sometimes the final fit varied with initial conditions, and constraints on peak center position were ...
David C. Doughty, Steven C. Hill
wiley   +1 more source

The Distribution of Blue Straggler Stars in the Color–Magnitude Diagrams of Old Open Clusters

open access: yesThe Astronomical Journal
We examine the blue straggler star (BSS) populations of six old (≥4 Gyr) open clusters: M67, NGC 188, NGC 6791, Berkeley 32, Berkeley 39, and Trumpler 19.
Evan Linck, Robert D. Mathieu
doaj   +1 more source

Supercritical Angle Fluorescence and Raman Techniques in Biophotonics

open access: yesLaser &Photonics Reviews, EarlyView.
Supercritical angle fluorescence (SAF) microscopy and supercritical angle Raman (SAR) spectroscopy have emerged as powerful tools in the field of biophotonics, enabling high‐resolution imaging and spectroscopy of biological specimens near interfaces. This review article provides a comprehensive overview of the principles, techniques, applications, and ...
Subir Das   +2 more
wiley   +1 more source

Mergers via failed common envelope as a route toward intermediate-mass stripped stars

open access: yesAstronomy & Astrophysics
Stripped stars are a common product of binary stellar systems, spanning a wide mass range from Wolf-Rayet stars to hot subdwarfs and helium white dwarfs.
Picco A., Marchant P., Pauli D., Sana H.
doaj   +1 more source

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