Results 51 to 60 of about 7,206,331 (163)

Braking index of the frequently glitching PSR J0537−6910★

open access: yesAstronomy & Astrophysics
Context. The pulsar J0537−6910 undergoes spin-up glitches more frequently than any other known pulsar, at a rate of roughly thrice per year. Its glitches are typically large and accompanied by abrupt changes in the spin-down rate ( ν˙ ν ˙ $ \dot{\nu}
Gügercinoğlu Erbil   +4 more
doaj   +1 more source

Long-term Timing Evolution of Four Anomalous X-Ray Pulsars

open access: yesThe Astrophysical Journal
Anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are believed to be manifestations of magnetars. Typically, AXPs exhibit higher X-ray luminosities, whereas SGRs are generally fainter and display significantly high signal-to-noise ratios
Han-Long Peng   +11 more
doaj   +1 more source

Nanostructure and dynamics of N-truncated copper amyloid-β peptides from advanced X-ray absorption fine structure

open access: yesIUCrJ
An X-ray absorption spectroscopy (XAS) electrochemical cell was used to collect high-quality XAS measurements of N-truncated Cu:amyloid-β (Cu:Aβ) samples under near-physiological conditions.
Ruwini S. K. Ekanayake   +3 more
doaj   +1 more source

After the Hype: Resilience Seeking in Emerging Technology Ecosystems

open access: yesJournal of Product Innovation Management, Volume 43, Issue 5, Page 793-826, September 2026.
ABSTRACT Academic Summary Hype often helps emerging technology ecosystems gain early support for their innovative value propositions, but the initial excitement around the technology typically vanishes at some point. This decrease in excitement and support may lead some ecosystems to fail while others are resilient and recover.
Fiona Schweitzer   +2 more
wiley   +1 more source

Discovery of Evolution of the Temporal Features of X-Ray Bursts from SGR J1935+2154

open access: yesThe Astrophysical Journal
SGR J1935+2154 has undergone eight active episodes since its discovery in 2014. In this study, our focus is on the evolution of the temporal characteristics including burst duration, minimum variation timescale (MVT), and waiting time across these active
Shuo Xiao   +9 more
doaj   +1 more source

Tuning Redox Dynamics in Cu‐Based Electrocatalysts: Effect of Secondary Metals

open access: yesAdvanced Functional Materials, Volume 36, Issue 68, 24 August 2026.
Advanced analysis of operando X‐ray absorption spectroscopy data reveals that secondary metals affect the redox processes in Cu‐based catalysts for electrocatalytic CO2 reduction. This influences the amount of oxides formed under pulsed reaction conditions and the distribution of reaction products.
Martina Rüscher   +17 more
wiley   +1 more source

The radio shut-off, glitch, and X-ray burst in 1E 1547.0−5408 interpreted through magnetic reconfiguration

open access: yesMonthly Notices of the Royal Astronomical Society, 2023
ABSTRACT A short X-ray burst was observed from the radio-loud magnetar 1E 1547.0–5408 in 2022 April. Unusually however, the source stopped showing radio pulsations $\gtrsim 3\,$ weeks prior to the burst. After recovery, radio timing revealed that the object had also undergone a modest glitch.
openaire   +3 more sources

Enhanced colour encoding of materials discrimination information for multiple view dual-energy x-ray imaging [PDF]

open access: yes, 2009
This thesis reports an investigation into dual-energy X-ray discrimination techniques. These techniques are designed to provide colour-coded materials discrimination information in a sequence of perspective images exhibiting sequential parallax.
Wang, X
core  

Energy-dispersive X-ray diffraction mapping on a benchtop X-ray fluorescence system [PDF]

open access: yes, 2014
A method for energy-dispersive X-ray diffraction mapping is presented, using a conventional low-power benchtop X-ray fluorescence spectrometer, the Seiko Instruments SEA6000VX.
Nyombi, Antony   +2 more
core   +1 more source

Operando X‐Ray Diffraction and Total Scattering Characterization of Battery Materials: Not Just a Pretty Picture

open access: yesAdvanced Energy Materials, Volume 16, Issue 19, 20 May 2026.
This review focuses on operando studies of battery materials by X‐ray diffraction (XRD) and total X‐ray scattering (TXS). This work highlights potential pitfalls and identify best‐practices for operando studies and reviews some unusual experiments to illustrate how these methods can be applied beyond the evaluation of the early‐stage cycling mechanisms
Amalie Skurtveit   +5 more
wiley   +1 more source

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