Results 51 to 60 of about 61,983 (254)

Jet-shaped filamentary ejecta in common envelope evolution

The Open Journal of Astrophysics
We conduct three-dimensional (3D) hydrodynamical simulations of common envelope evolution (CEE) of a neutron star (NS) that launches jets as it spirals in inside the envelope of a rotating red supergiant (RSG) stellar envelope and find that Rayleigh ...
Ron Schreier, Shlomi Hillel, Noam Soker
doaj   +1 more source

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

Advanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

The Energy Sharing Timescale in an Analytic Framework for Common Envelope Hydrodynamics

The Astrophysical Journal Letters
We propose a new predictive theory for the analysis of common envelope (CE) events that incorporates the effects of relevant hydrodynamical processes into a simple analytical framework.
Rosa Wallace Everson, Morgan MacLeod, Enrico Ramirez-Ruiz   +2 more
doaj   +1 more source

Physics-Constrained Constitutive Learning of Rate-Limiting Timescales for Efficient Hydrogen-Based Direct Reduction for Green Steel Making. [PDF]

Adv Sci (Weinh)
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Bajpai A, Ratzker B, Cavaliere P, Raabe D.   +3 more
europepmc   +2 more sources

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

Advanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou, Qiang Qin, Xiqin Li, Hanyu Ding, Chun Xu, Yan He, Qingsong Ye   +6 more
wiley   +1 more source

The Effect of Donor Star Rejuvenation on Common Envelope Evolution

The Astrophysical Journal
In close binary star systems, common envelope evolution (CEE) may occur after a previous phase of mass transfer. Some isolated formation channels for double neutron star binaries suggest that the donor of CEE was the accretor of a previous phase of ...
C. Landri, P. M. Ricker, M. Renzo, S. Rau, A. Vigna-Gómez   +4 more
doaj   +1 more source

Hydrogels Augmented With Artificial Sweeteners can Inhibit Multidrug‐Resistant Acinetobacter baumannii Growth and Biofilm Formation While Demonstrating Safety in Pre‐Clinical Pilot Human Trials

Advanced Healthcare Materials, EarlyView.
Using PVA–borax hydrogels as carriers for off‐the‐shelf artificial sweeteners to fight multidrug‐resistant A. baumannii. These soft, biocompatible hydrogels rapidly reduce bacterial viability within multidrug‐resistant A. baumannii biofilms by more than 99% within one hour and sustain antimicrobial activity over time, while demonstrating safety in both
Jie Han, Mohamed Soliman, Bin Zhang, Dominika Krawiel, Ronan R. McCarthy   +4 more
wiley   +1 more source

Understanding the drag torque in common envelope evolution

Publications of the Astronomical Society of Australia
Abstract Common envelope (CE) evolution is largely governed by the drag torque applied on the in-spiralling stellar components by the envelope. Previous work has shown that idealized models of the torque based on a single body moving in rectilinear motion through an unperturbed atmosphere can be highly inaccurate.
Soumik Bhattacharyya, Luke Chamandy, Eric G. Blackman, Adam Frank, Baowei Liu   +4 more
openaire   +2 more sources

Journey to the center of the common envelope evolution

Astronomy & Astrophysics
Three-dimensional hydrodynamical simulations of common envelope evolution are often terminated soon after the initial dynamical plunge of the companion transitions into a long-lasting post-dynamical inspiral with a slowly varying semimajor axis, ab. This premature termination is often due to insufficient numerical resolution and challenges associated ...
Gagnier, Damien, Pejcha, Ondřej
  +5 more sources

A Not-so-compact Companion: Massive, Oversized White Dwarf in a Post-common-envelope Eclipsing Binary

The Astronomical Journal
We provide a detailed characterization of 2M07515777+1807352, a post-common-envelope eclipsing binary system with a 10.3-day, nearly (but not quite) circular orbit ( e = 0.02).
Erin Motherway, Evan Linck, Robert D. Mathieu, Don Dixon, Keivan G. Stassun, Katelyn Breivik, Steve Majewski, Onno R. Pols   +7 more
doaj   +1 more source