Results 71 to 80 of about 334 (263)

Orbital Period Changes in Recurrent Nova T Corona Borealis Prove That It Is Not a Type Ia Supernovae Progenitor

open access: yesThe Astrophysical Journal
T Corona Borealis (T CrB) is a recurrent nova and a symbiotic star that is commonly highlighted as the best case for being a progenitor of a Type Ia supernova (SN Ia) within the framework of single-degenerate models.
Bradley E. Schaefer
doaj   +1 more source

Targeting a Myeloid–Regulatory B Cell Network Reverses Immune Paralysis in Periprosthetic Joint Infections

open access: yesAdvanced Science, EarlyView.
Periprosthetic joint infection establishes a sophisticated immunosuppressive network between CXCR4+ PMN‐MDSCs and Bregs, inducing profound CD8+ T cell paralysis. Alendronate effectively disrupts this CXCR4+ PMN‐MDSC–Breg axis by targeting STAT3, thereby restoring local immune surveillance.
Jintao Wu   +9 more
wiley   +1 more source

Recurrent Novae, Classical Novae, Symbiotic Novae, and Population II Novae

open access: yes, 2001
Light curve analysis of decay phase of nova outburst are summarized. Nova duration is determined by the strong wind mass-loss which depends only on the white dwarf mass. Fast novae correspond very massive white dwarfs and very slow novae correspond almost lower mass limit of white dwarfs.
openaire   +2 more sources

High‐Performance Multi‐Walled Carbon Nanotubes‐Organic Passivated Si Solar Cells Enabled by Spatially Selective Harvesting of High‐Quality Sponges

open access: yesAdvanced Science, EarlyView.
Our work achieves an efficiency breakthrough in MWCNTs/Si solar cells by screening high‐quality pristine MWCNTs without any separation or purification processes. This breakthrough is mainly attributed to the excellent dispersibility of Nafion and the excellent hole transport property of MWCNTs:Nafion film containing charge transfer doping, passivation,
Yuke Ren   +13 more
wiley   +1 more source

Hydrodynamic Predictions for the Next Outburst of T Coronae Borealis: It Will Be the Brightest Classical or Recurrent Nova Ever Observed in X-Rays

open access: yesThe Astrophysical Journal
T Coronae Borealis (TCrB) is a recurrent nova with recorded outbursts in 1866 and 1946 and possible outbursts in 1217 and 1787. It is predicted to explode again in 2025 or 2026 based on multiple observational studies. The system consists of a massive ( M
S. Starrfield   +13 more
doaj   +1 more source

Recurrent Novae: A Masquerade

open access: yes, 2015
Slides from my talk given in September 2015 at the Golden Age of Cataclysmic Variables III conference in Palermo, Sicily.(Figshare only previews the first few slides. Download the PDF to see all of them!)
openaire   +1 more source

ORBITAL PERIODS FOR THREE RECURRENT NOVAE

open access: yesThe Astrophysical Journal, 2009
I report on the discovery of the orbital periods of three recurrent novae in our galaxy. V745 Sco has an orbital period of 510+-20 days with ellipsoidal modulations, based on SMARTS photometry from 2004-2008. V3890 Sgr has an orbital period of 519.7+-0.3 days with ellipsoidal modulations and a shallow eclipse, based primarily on SMARTS and AAVSO ...
openaire   +3 more sources

Thin‐Film Transistor Based Active Taxel for Multimode Tactile Perception and Fused Processing

open access: yesAdvanced Science, EarlyView.
Skin serves as the largest‐area organ for human and embodied intelligent robots, providing tactile interaction. An active multimode fused (AMF) artificial skin is developed using standard TFT processes, featuring 2T‐1C taxels with optical and electrostatic capacitive receptors for cross‐modal sensing.
Sihao Wu   +13 more
wiley   +1 more source

Upper Bound of Ejecta Mass in a Nova Outburst

open access: yesThe Astrophysical Journal
We present the maximum ejecta mass ${({M}_{{\rm{ej}}})}_{{\rm{\max }}}$ and the maximum ratio of ejecta mass and accreted mass ${({M}_{{\rm{ej}}}/{M}_{{\rm{acc}}})}_{{\rm{\max }}}$ of a nova for various white dwarf (WD) masses ( M _WD  = 0.6–1.38 M _ ...
Izumi Hachisu, Mariko Kato
doaj   +1 more source

Biomimetic Gradient Hydrogels Regulate Osteochondral Regeneration Microenvironment Remodeling via Spatiotemporal Programming Engineering

open access: yesAdvanced Science, EarlyView.
Electric field‑driven continuous gradient hydrogel GHZF4 achieves spatiotemporal growth factor release, modulates immune microenvironment, angiogenesis and osteochondral differentiation. It realizes cell‑free functional osteochondral repair in rat/rabbit models, offering a promising biomimetic strategy for gradient tissue regeneration.
Xiaolian Niu   +7 more
wiley   +1 more source

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