Results 81 to 90 of about 18,132 (264)

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

open access: yesAdvanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang   +5 more
wiley   +1 more source

The violent neutron star

open access: yes, 2012
6 pages, invited review, to appear in the proceedings of the ERPM conference, Zielona Gora, April ...
openaire   +3 more sources

Anomalous hydrodynamics kicks neutron stars

open access: yes, 2016
Observations show that, at the beginning of their existence, neutron stars are accelerated briskly to velocities of up to a thousand kilometers per second.
Uhlemann, Christoph F.   +3 more
core  

Demography of binary neutron stars: the impact of natal kicks and electron-capture supernovae.

open access: yes, 2022
This thesis presents a theoretical study on the statistical properties of binary neutron stars, by means of synthetic stellar populations simulated with the SEVN code.
Gaspari, Nicola
core  

Outstanding TC Enhancement in 5d–3d Y2NiIrO6 by Compression

open access: yesAdvanced Science, EarlyView.
Double perovskite Y2NiIrO6 with half filed 3d eg–5d t2g configuration, exhibits first experimental example of pressure‐enhanced magnetic interaction in iridate and iridate‐related systems. Its Curie temperature increase from 192 to 243 K at 17 GPa. Herein, the orthogonal eg–t2g pathway remains robust even under compression‐induced lattice distortion ...
Zheng Deng   +18 more
wiley   +1 more source

Wiederherstellung chiraler Symmetrie und des Deconfinements in Neutronensternen

open access: yes, 2009
Neutron stars are very dense objects. One teaspoon of their material would have a mass of five billion tons. Their gravitational force is so strong that if an object were to fall from just one meter high it would hit the surface of the respective neutron
Dexheimer, Verônica Antocheviz
core  

Evolution of proto-neutron stars with hadron-quark phase transition

open access: yes, 2012
We investigate the consequences of the quark deconfinement phase transition on the evolution of proto-neutron stars. Assuming a first order phase transition, we calculate the nucleation time due to thermal and quantum nucleation mechanisms.
BOMBACI, IGNAZIO   +3 more
core   +1 more source

Wide Temperature Zero Thermal Expansion in Al Matrix Composites with High Thermal Conductivity

open access: yesAdvanced Science, EarlyView.
Strain engineering strategy is implemented on the negative thermal expansion (NTE) phase Zn1.6Mg0.4P2O7 within composites, where Al matrix‐induced compressive strain drives uniform polyhedral and unit cell evolution, thereby enabling broad and consistent thermal compensation efficacy and obtaining good thermal performance.
Jinrui Qian   +14 more
wiley   +1 more source

FRAGMENTATION OF NEUTRON STAR MATTER [PDF]

open access: yes, 2017
Background: Neutron stars are astronomical systems with nucleons submitted to extreme conditions. Due to the long range coulomb repulsion between protons, the system has structural inhomogeneities. These structural inhomogeneities arise also in expanding systems, where the fragment distribution is highly dependent on the thermodynamic conditions ...
Alcain, Pablo Nicolás   +1 more
openaire   +3 more sources

High-Frequency QPOs as a Product of Inner Disk Dynamics around Neutron Stars

open access: yes, 2011
The kHz QPOs observed in a neutron star low mass X-ray binary are likely to be produced in the innermost regions of accretion disk around the neutron star.
Erkut, M. Hakan
core   +1 more source

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