Results 1 to 10 of about 2,148,167 (385)

Multi-frame DVC for temporal image sequences

open access: yesFrontiers in Materials, 2022
Digital volume correlation (DVC) is a 3D image-based technique for displacement and strain computation. Traditionally, both (digital image correlation) DIC and DVC are methods based on two individual time frames; the estimation of the displacement and ...
Zaira Manigrasso   +12 more
doaj   +1 more source

Gas Sloshing and Cold Fronts in Pre-merging Galaxy Cluster A98

open access: yesThe Astrophysical Journal, 2023
We present deep Chandra observations of the pre-merger galaxy cluster Abell 98 (A98). A98 is a complex merging system. While the northern (A98N) and central subclusters (A98S) are merging along the north–south direction, A98S is undergoing a separate ...
Arnab Sarkar   +12 more
doaj   +1 more source

Optical and near-infrared observations of the GRB 970616 error box [PDF]

open access: yes, 1999
We report on near-infrared and optical observations of the GRB 970616 error box and of the X-ray sources discovered by ASCA and ROSAT in the region. No optical transient was found either within the IPN band or in the X-ray error boxes, similarly to other
Castro-Tirado, A. J.   +9 more
core   +2 more sources

The high energy X-ray probe: resolved X-ray populations in extragalactic environments

open access: yesFrontiers in Astronomy and Space Sciences, 2023
We construct simulated galaxy data sets based on the High Energy X-ray Probe (HEX-P) mission concept to demonstrate the significant advances in galaxy science that will be yielded by the HEX-P observatory.
Bret D. Lehmer   +22 more
doaj   +1 more source

Insights on the dissolution of water in an albite melt at high pressures and temperatures from a direct structural analysis

open access: yesScientific Reports, 2023
The water dissolution mechanism in silicate melts under high pressures is not well understood. Here we present the first direct structure investigation of a water-saturated albite melt to monitor the interactions between water and the network structure ...
Robert A. Mayanovic   +3 more
doaj   +1 more source

The Imaging X-ray Polarimetry Explorer (IXPE)

open access: yesResults in Physics, 2016
The Imaging X-ray Polarimetry Explorer (IXPE) expands observation space by simultaneously adding polarization to the array of X-ray source properties currently measured (energy, time, and location).
Martin C. Weisskopf   +13 more
doaj   +1 more source

Spectral Signatures of KiloHertz Quasi-Periodic Oscillations from Accreting Neutron Stars [PDF]

open access: yes, 2000
Correlations discovered between millisecond timing properties and spectral properties in neutron star x-ray binaries are described and then interpreted in relation to accretion flows in the systems.
Kaaret, Philip
core   +3 more sources

Introduction to Properties of Galactic X-Ray Sources [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1988
Since the successful observation by Uhuru, the first astronomical satellite, X-ray astronomy has become one of the rapidly developing fields in astronomy.
Chul-Sung Choi   +2 more
doaj  

Evaluation of Different Dialyzers and the Impact of Predialysis Albumin Priming in Intermittent Hemodialysis With Reduced Anticoagulation

open access: yesKidney International Reports, 2019
Introduction: Systemic anticoagulation is widely used in routine clinical hemodialysis, but can be contraindicated in specific settings. Anticoagulant-free treatment regimens are prone to failure even in chronic intermittent hemodialysis.
Floris Vanommeslaeghe   +5 more
doaj   +1 more source

Magnetic Activity–Rotation–Age–Mass Relations in Late-pre-main-sequence Stars

open access: yesThe Astrophysical Journal, 2023
We study the four-dimensional relationships between magnetic activity, rotation, mass, and age for solar-type stars in the age range 5–25 Myr. This is the late-pre-main-sequence (l-PMS) evolutionary phase when rapid changes in a star's interior may lead ...
Konstantin V. Getman   +2 more
doaj   +1 more source

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