Results 51 to 60 of about 5,806,348 (275)

An Imaging‐Guided, Patient‐Specific Guiding Aid (RWNGuide) for Safe and Reproducible Inner Ear Drug Delivery

Advanced Materials Technologies, EarlyView.
A patient‐specific, imaging‐guided aid enables precise and reproducible drug delivery to the inner ear. By guiding therapeutic agents directly to the round window niche, this approach reduces variability in drug localization, improves delivery safety, and addresses a critical bottleneck in inner ear therapy, offering a scalable strategy for precision ...
Yanjing Luo, Shanshan Jiang, Yimian Luo, Adele Moatti, Farnaz Matin‐Mann   +4 more
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

The Evolution of Compact Binary Star Systems

Living Reviews in Relativity, 2014
We review the formation and evolution of compact binary stars consisting of white dwarfs (WDs), neutron stars (NSs), and black holes (BHs). Mergings of compact-star binaries are expected to be the most important sources for forthcoming gravitational-wave
Konstantin A. Postnov, Lev R. Yungelson
doaj   +1 more source

Lessons from the Ionised and Molecular Mass of Post-CE PNe

Galaxies, 2022
Close binary evolution is widely invoked to explain the formation of axisymmetric planetary nebulae after a brief common envelope phase. The evolution of the primary would be interrupted abruptly, its still quite massive envelope being fully ejected to ...
Miguel Santander-García, David Jones, Javier Alcolea, Valentín Bujarrabal, Roger Wesson   +4 more
doaj   +1 more source

Wide post-common envelope binaries containing ultramassive white dwarfs: evidence for efficient envelope ejection in massive asymptotic giant branch stars

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT Post-common envelope binaries (PCEBs) containing a white dwarf (WD) and a main-sequence (MS) star can constrain the physics of common envelope evolution and calibrate binary evolution models. Most PCEBs studied to date have short orbital periods (Porb ≲ 1 d), implying relatively inefficient harnessing of binaries’ orbital energy
Natsuko Yamaguchi, Kareem El-Badry, Jim Fuller, David W Latham, Phillip A Cargile, Tsevi Mazeh, Sahar Shahaf, Allyson Bieryla, Lars A Buchhave, Melissa Hobson   +9 more
openaire   +1 more source

Two‐Dimensional Isotropic Spatial Differentiation Through Complete Polarization Control

Advanced Optical Materials, EarlyView.
This work enables two‐dimensional isotropic spatial differentiation at planar interfaces over a wide range of incident angles by extending the output polarization from linear to elliptical. The choice of incident angle can be used to balance broader spectral response at low angles and higher edge‐detection efficiency at larger angles.
Doyoon Lee, Minkyung Kim
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

The Complete Evolution of a Neutron-star Binary through a Common Envelope Phase Using 1D Hydrodynamic Simulations [PDF]

The Astrophysical Journal Letters, 2019
Abstract Over 40 years of research suggests that the common envelope phase, in which an evolved star engulfs its companion upon expansion, is the critical evolutionary stage forming short-period, compact-object binary systems, such as coalescing double compact objects, X-ray binaries, and cataclysmic variables. In this work, we adapt the
Fragkos, Anastasios, Andrews, Jeff J., Ramirez-Ruiz, Enrico, Meynet, Georges, Kalogera, Vicky, Taam, Ronald E., Zezas, Andreas   +6 more
openaire   +4 more sources

Mass Transfer in Binary Stars using Smoothed Particle Hydrodynamics [PDF]

, 2010
Despite numerous efforts to better understand binary star evolution, some aspects of it remain poorly constrained. In particular, the evolution of eccentric binaries has remained elusive mainly because the Roche lobe formalism derived for circular ...
Lajoie, Charles-Philippe
core  

Intelligent Maintenance Review for Robots: Multimodal Information, Deep Diagnosis and Embodied Artificial Intelligence

Advanced Robotics Research, EarlyView.
This review maps the methods to monitor robots’ health by fusing vibration, sound, control signals, vision, force, and oil information with artificial intelligence. It identifies deep learning, transfer learning, digital twins, and physics‐informed models as key methodological pathways enabling earlier diagnosis, safer human–robot collaboration, and ...
Yuting Qiao, Hongbo Wang, Naipeng Li, Shuo Wang, Yaguo Lei, Tonghai Wu, Junyi Cao   +6 more
wiley   +1 more source