Results 121 to 130 of about 63,717 (334)

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

open access: yesAdvanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil   +14 more
wiley   +1 more source

Exploring the Spin Dependence on Mass Inclination and Distance for the Newly Discovered Black Hole X-Ray Binary Swift J151857.0–572147

open access: yesThe Astrophysical Journal
The black hole X-ray binary Swift J151857.0−572147 was discovered during its first outburst in 2024 March. We review the archive of NICER observations from this outburst, focusing on the soft states.
Yujia Song   +9 more
doaj   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

open access: yesAdvanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner   +9 more
wiley   +1 more source

A Comparison of the X-Ray Polarimetric Properties of Stellar and Supermassive Black Holes

open access: yesThe Astrophysical Journal
X-ray polarization provides a new way to probe accretion geometry in black hole systems. If the accretion geometry of black holes is similar regardless of mass, we should expect the same to be true of their polarization properties.
M. Lynne Saade   +3 more
doaj   +1 more source

Why are AGN found in High Mass Galaxies?

open access: yes, 2008
We use semi-analytic models implemented in the Millennium Simulation to analyze the merging histories of dark matter haloes and of the galaxies that reside in them.
Barger   +40 more
core   +1 more source

Dynamical confirmation of a stellar mass black hole in the transient X-ray dipping binary MAXI J1305-704 [PDF]

open access: green, 2021
D. Mata Sánchez   +5 more
openalex   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

open access: yesAdvanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas   +11 more
wiley   +1 more source

Stellar-mass Black Holes in Globular Clusters: Dynamical consequences and observational signatures [PDF]

open access: green, 2019
Abbas Askar   +5 more
openalex   +1 more source

Microquasars: disk–jet coupling in stellar-mass black holes [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractMicroquasars provide new insights into: 1) the physics of relativistic jets from black holes, 2) the connection between accretion and ejection, and 3) the physical mechanisms in the formation of stellar-mass black holes. Furthermore, the studies of microquasars in our Galaxy can provide in the future new insights on: 1) a large fraction of the ...
openaire   +2 more sources

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

open access: yesAdvanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi   +11 more
wiley   +1 more source

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