Results 61 to 70 of about 123,706 (259)

Computing gravitational waves from slightly nonspherical stellar collapse to black hole: Odd-parity perturbation

open access: yes, 2003
Nonspherical stellar collapse to a black hole is one of the most promising gravitational wave sources for gravitational wave detectors. We numerically study gravitational waves from a slightly nonspherical stellar collapse to a black hole in linearized ...
A. Abramovici   +62 more
core   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

open access: yesAdvanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Critical Phenomena in Gravitational Collapse

open access: yesLiving Reviews in Relativity, 1999
As first discovered by Choptuik, the black hole threshold in the space of initial data for general relativity shows both surprising structure and surprising simplicity.
Gundlach Carsten
doaj  

Erosion of granular sediments by submerged impinging jets: Particle size effects and cohesion onset

open access: yesAIChE Journal, EarlyView.
Abstract This study investigates the erosion behavior and modeling of glass particle beds under impinging jet conditions, with a focus on particle size effects and the onset of cohesion. Ultrasonic profiling is implemented to scan and measure static crater profiles.
Ahmad Mohamadiyeh   +4 more
wiley   +1 more source

Calculation of radar signals delay to second order in the frame of the General Relativity Theory

open access: yesACI Avances en Ciencias e Ingenierías, 2014
From the Schwarzschild metric, the light delay due to a gravitational field is calculated to second order approximation in the gravitational potential. We analize the contribution of the second order terms for strong gravitational fields as the generated
Joaquín Valerio Grefa, Carlos A. Marín
doaj   +1 more source

Gravitational collapse and naked singularities

open access: yes, 2004
Gravitational collapse is one of the most striking phenomena in gravitational physics. The cosmic censorship conjecture has provided strong motivation for researches in this field.
A M Abrahams   +49 more
core   +1 more source

Gravitational Collapse in Constant Potential Bath [PDF]

open access: yes, 2000
We analyse here the gravitational collapse of directed null radiation in a background with a constant potential such as one produced by a star system like galaxy in which the collapsing object is immersed.
A. Papapetrou   +16 more
core   +2 more sources

Evolution of Physical Intelligence Across Scales

open access: yesAdvanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu   +7 more
wiley   +1 more source

Spinning into the Gap: Direct-horizon Collapse as the Origin of GW231123 from End-to-end General-relativistic Magnetohydrodynamic Simulations

open access: yesThe Astrophysical Journal Letters
GW231123, the most massive binary black hole (BH) merger observed to date, involves component BHs with masses inside the pair-instability mass gap and unusually high spins.
Ore Gottlieb   +5 more
doaj   +1 more source

Collapsing dust thin shells in Einstein–Gauss–Bonnet gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We investigate gravitational collapse of a spherically symmetric thin shell in the Einstein–Gauss–Bonnet (EGB) gravity. Under the recently proposed 4D limit, we find that the collapsing shell will be bounced back at a small radius, without forming a ...
Yong-Ming Huang, Yu Tian, Xiao-Ning Wu
doaj   +1 more source

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