Results 21 to 30 of about 339,109 (364)
Time-resolved β-lactam cleavage by L1 metallo-β-lactamase
Nature Communications, 2022 Metallo-β-lactamases cleave β-lactam moiety of many broadly used antibiotics. Here the authors captured mechanistic details of the enzyme catalyzed reaction using time-resolved xray synchrotron serial crystallography.
M. Wilamowski +12 more
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Update on laser-driven X-ray sources at ELI Beamlines [PDF]
, 2021 Three main paths have been selected within the ELI Beamlines research program for transforming driving laser pulses into brilliant beams of short wavelength radiation: High-order harmonic generation in gases, Plasma X-ray sources, and sources based on ...
Hort O. +6 more
core +1 more source
Two-way tuning of structural order in metallic glasses
Nature Communications, 2020 While metallic glasses are expected to have tunable structures, these have rarely been demonstrated. Here, the authors combine temperature and pressure to show a two-way structural tuning in rare earth-based metallic glasses beyond the nearest-neighbor ...
Hongbo Lou +14 more
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Time Resolved Two Dimensional X-Ray Densitometry of a Two Phase Flow Downstream of a Ventilated Cavity [PDF]
, 2013 To measure the void fraction distribution in gas-liquid flows, a two-dimensional x-ray densitometry system was developed. This system is capable of acquiring a two-dimensional projection with a 225 cm2 area of measurement through 21 cm of water.
GABILLET, Céline +8 more
core +1 more source
X-ray observations of ultraluminous X-ray sources [PDF]
Astrophysics and Space Science, 2007 Invited talk at the 5th Stromlo Symposium. 10 pages, 4 figures.
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Coherent Compton X-Ray Sources [PDF]
Journal of X-Ray Science and Technology: Clinical Applications of Diagnosis and Therapeutics, 1994 Coherent x rays can be produced by scattering of laser light by a beam of relativistic electrons, provided that the electron beam is density modulated or the scattering is done at, or near, 90°. Since the coherent scattering is proportional to N 2 , where N is the number of electrons, and the
Luccio, A., Miceli, L.
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Local structure of liquid gallium under pressure
Scientific Reports, 2017 In situ high energy X-ray pair distribution function (PDF) measurements, microtomography and reverse Monte Carlo simulations were used to characterize the local structure of liquid gallium up to 1.9 GPa.
Renfeng Li +10 more
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The novel high-pressure/high-temperature compound Co12P7 determined from synchrotron data
Acta Crystallographica Section E: Crystallographic Communications, 2020 The structural properties of cobalt phosphides were investigated at high pressures and temperatures to better understand the behavior of metal-rich phosphides in Earth and planetary interiors. Using single-crystal X-ray diffraction synchrotron data and a
Claire Zurkowski +5 more
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Altered chemistry of oxygen and iron under deep Earth conditions
Nature Communications, 2019 Iron oxides prevail in the deep Earth, at extreme pressures and temperatures, with different stoichiometries than in ambient conditions. Here, high-pressure synchrotron X-ray spectroscopic measurements reveal the oxidation states of Fe and O in iron ...
Jin Liu +9 more
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Monthly Notices of the Royal Astronomical Society, 1977 Since those reviews there have been very important new developments. First, a surprisingly new animal, GRO J1744—28 (better known as the Bursting Pulsar), made its debut in 1995. Second, but NOT last, in 1996/97 kHz pulsations were discovered in the persistent emission of several burst sources, and near coherent pulsations were detected in type I X-ray
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