Results 41 to 50 of about 49,845 (276)

Relationship between High-Energy Absorption Cross Section and Strong Gravitational Lensing for Black Hole

open access: yes, 2011
In this paper, we obtain a relation between the high-energy absorption cross section and the strong gravitational lensing for a static and spherically symmetric black hole. It provides us a possible way to measure the high-energy absorption cross section
A. A. Starobinsky   +5 more
core   +1 more source

Weak Lensing of the Cosmic Microwave Background by Foreground Gravitational Waves [PDF]

open access: yes, 2006
Weak lensing distortion of the background cosmic microwave background (CMB) temperature and polarization patterns by the foreground density fluctuations is well studied in the literature.
Asantha Cooray   +2 more
core   +2 more sources

Dispensing Volumetric Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Dispensing volumetric additive manufacturing (DVAM) prints 3D structures inside a photocurable resin droplet suspended from the tip of a glass pipette, enabling sequential printing without resin vats or manual part removal. Real‐time droplet profiling and ray‐tracing‐based correction compensate for optical distortion at the curved resin‐air interface ...
Hongryung Jeon   +5 more
wiley   +1 more source

A Comparative Study on Early‐Stage Icing Evaluation Techniques for Passive Ice Protection Systems

open access: yesAdvanced Materials Interfaces, EarlyView.
This study addresses the lack of standardized methodologies for evaluating the early‐stage icing performance of passive ice protection systems. A unified experimental protocol is proposed and applied to representative hydrophilic and hydrophobic surfaces under controlled conditions.
Lorenzo Facco   +4 more
wiley   +1 more source

Gravitational Lensing Effects from Models of Loop Quantum Gravity with Rigorous Quantum Parameters

open access: yesUniverse
Many previous works have studied gravitational lensing effects from Loop Quantum Gravity. So far, gravitational lensing effects from Loop Quantum Gravity have only been studied by choosing large quantum parameters much larger than the Planck scale ...
Haida Li, Xiangdong Zhang
doaj   +1 more source

Editorial of Modified Theories of Gravity and Cosmological Applications

open access: yesUniverse, 2022
General Relativity is a theory of gravity that describes some of the effects of gravity with high accuracy, such as solar system tests, gravitational lensing, gravitational waves, black holes, deflection angle, etc [...]
Panayiotis Stavrinos, Emmanuel Saridakis
doaj   +1 more source

Detecting Stellar Lensing of Gravitational Waves with Ground-Based Observatories

open access: yes, 2018
We investigate the ability of ground based gravitational wave observatories to detect gravitational wave lensing events caused by stellar mass lenses. We show that LIGO and Virgo possess the sensitivities required to detect lenses with masses as small as
Christian, Pierre   +2 more
core   +1 more source

Resolving the discrepancy between X-ray and gravitational lensing mass measurements for clusters of galaxies [PDF]

open access: yes, 1997
We present a detailed comparison of mass measurements for clusters of galaxies using ASCA and ROSAT X-ray data and constraints from strong and weak gravitational lensing.
Allen, S. W.
core   +2 more sources

Gravitational Lensing [PDF]

open access: yesAIP Conference Proceedings, 2009
Gravitational lensing of the cosmic microwave background by largeâ€scale structure in the late universe is both a source of cosmological information and a potential contaminant of primordial gravity waves. Because lensing imprints growth of structure in the late universe on the CMB, measurements of CMB lensing will constrain parameters to which the CMB
Kendrick M. Smith   +22 more
openaire   +2 more sources

Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance

open access: yesAdvanced Materials Interfaces, EarlyView.
Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad   +3 more
wiley   +1 more source

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