Results 201 to 210 of about 255,861 (341)

Fitting the Crab Supernova with a Gamma-Ray Burst

open access: yesUniverse
Here, we reconsider the historical data, assuming a gamma-ray burst (GRB) as its source. A Supernova correlated with the GRB explains well the fading time observed by the ancient Chinese astronomers in the daytime and the nighttime, while the GRB power ...
Remo Ruffini, Costantino Sigismondi
doaj   +1 more source

Plasma Production by Laser Ablation of Heavy Metals

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT An Nd:YAG focused laser operating at 1064 nm, 3 ns pulse width, 360 mJ pulse energy, is employed to irradiate heavy metals, such as Ta, W, Pt, Au, and Pb. The in‐vacuum irradiation produces an expanding plasma at the target surface which has high density, temperature, and kinetic energy of emitted ions. Ions have a velocity of the order of 104 
L. Torrisi, M. Cutroneo, A. Torrisi
wiley   +1 more source

A Study of the Spectral Properties of Gamma-Ray Bursts with Main and Second Bursts

open access: yesThe Astrophysical Journal
The origins of the main burst and second burst of gamma-ray bursts (GRBs) and the composition of their jets remain uncertain. To explore this complex subject more thoroughly, we conduct a spectral analysis on 18 GRBs with a main and a second burst ...
Ze-Lian Du   +4 more
doaj   +1 more source

Immunomodulatory Nanozymes Eradicate Intracellular Infections and Rescue Immunoparalysis for Treating Multidrug‐Resistant Bacterial Sepsis

open access: yesExploration, EarlyView.
Immunomodulatory nanozymes enable in situ macrophages engineering and orchestrate systemic innate‐adaptive immune response to eradicate intracellular bacteria and rescue immunoparalysis for treating multidrug‐resistant bacterial sepsis. ABSTRACT Sepsis and their sequelae are the leading causes of death in intensive care units, with limited therapeutic ...
Xuancheng Du   +19 more
wiley   +1 more source

Fabrication of Lithium/Strontium‐Releasing Smart Bioactive Glasses with Anti‐Inflammatory and Osteogenic Effects Tailored to Pathological Stages

open access: yesMacromolecular Bioscience, EarlyView.
Bioactive glasses with controllable dual ion release capability are developed to aid bone regeneration. The bioactive glasses rapidly release lithium ions that exert an anti‐inflammatory effect, suppressing inflammation after bone injury. Simultaneously, the bioactive glasses slowly release strontium ions, which support bone formation by suppressing ...
Hirohiko Sakai   +6 more
wiley   +1 more source

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