Results 31 to 40 of about 8,830 (260)

MAXI observations of long X-ray bursts [PDF]

open access: yesPublications of the Astronomical Society of Japan, 2016
Abstract We report nine long X-ray bursts from neutron stars, detected with the Monitor of All-sky X-ray Image (MAXI). Some of these bursts lasted for hours, and hence are qualified as superbursts, which are prolonged thermonuclear flashes on neutron stars and are relatively rare events.
Serino, Motoko   +7 more
openaire   +2 more sources

Estimation of plasma parameters of X-pinch with time-resolved x-ray spectroscopy

open access: yesMatter and Radiation at Extremes, 2023
We estimate the parameters of a Cu plasma generated by an X-pinch by comparing experimentally measured x-rays with synthetic data. A filtered absolute extreme ultraviolet diode array is used to measure time-resolved x-ray spectra with a spectral ...
Seunggi Ham   +6 more
doaj   +1 more source

Spectra of the Expansion Stage of X‐Ray Bursts [PDF]

open access: yesThe Astrophysical Journal, 2002
31 pages, 4 figures, accepted by the Astrophysical ...
Shaposhnikov, Nickolai, Titarchuk, Lev
openaire   +2 more sources

Fusogenic RNA Nanomodules for Fusion‐Mediated and Multiplexed siRNA Delivery

open access: yesAdvanced Functional Materials, EarlyView.
A fusogenic lipid‐layered RNA nanomodules (L‐CRAMs) enable high‐capacity and long‐lasting siRNA delivery through membrane fusion. These nanomodules carry exceptionally large siRNA payloads, avoid conventional endosomal uptake, and release multiple functional siRNAs through Dicer‐mediated processing.
Sunghyun Moon   +5 more
wiley   +1 more source

NuSTAR Observations of GS 1826-238 in the Extended Soft State

open access: yesThe Astrophysical Journal
We report on the first focused NuSTAR observations of the neutron star low mass X-ray binary GS 1826-238, the “Clocked Burster,” since the extended soft state began in 2014.
B. W. Grefenstette   +7 more
doaj   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han   +5 more
wiley   +1 more source

Thermonuclear X-Ray Bursts of 4U 0614+09: The Evidence for the Retreat of the Disk away from the Neutron Star

open access: yesThe Astrophysical Journal
The thermonuclear X-ray burster, 4U 0614+09, which is located at a distance of ∼3 kpc, serves as a valuable laboratory for studying the interaction between thermonuclear X-ray bursts and the surrounding accretion environment.
Yu-Peng Chen   +10 more
doaj   +1 more source

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

open access: yesAdvanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen   +10 more
wiley   +1 more source

Emerging Post‐CMOS Hardware Neurons for Brain‐Inspired Computing: Devices, Circuits, and System Integration

open access: yesAdvanced Functional Materials, EarlyView.
The physical realization of artificial neurons is a critical challenge for energy‐efficient neuromorphic computing. This review presents a comprehensive analysis of the evolution of artificial neuron implementations from conventional CMOS to emerging post‐CMOS technologies.
Kannan Udaya Mohanan   +4 more
wiley   +1 more source

EP241217a: A Likely Type II GRB with an Achromatic Bump at z = 4.59

open access: yesThe Astrophysical Journal
EP241217a is an X-ray transient detected by the Einstein Probe lasting for about 100 s and without accompanying γ -ray detection. The optical spectroscopy reveals the redshift of EP241217a is 4.59. By combining the γ -ray upper limit provided by GECAM-C,
Hao Zhou   +24 more
doaj   +1 more source

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