Results 141 to 150 of about 62,947 (343)
Caustics type of gravitational singularities
4 pages.
Sardanashvily, G. A., Timoshenko, E. G.
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Gravitational collapse in energy-momentum squared gravity: Nature of singularities
Nuclear Physics BIn this paper we explore a collapsing scenario in the background of energy-momentum squared gravity (EMSG). EMSG claims to have terms that originate from the quantum gravity effects mimicking loop quantum gravity.
Prabir Rudra
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Advanced Science, EarlyView.We show that solutal Marangoni flows in thin films climbing the outer surfaces of hydrophilic obstacles break circular Belousov‐Zhabotinsky waves into striking flower‐like patterns. Evaporation‐driven surface‐tension gradients, coupled with gravity, trigger the instability; above a threshold, petal number scales linearly with obstacle diameter ...
Sangram Gore +9 more
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Orbifolds, the A, D, E family of caustic singularities, and gravitational lensing [PDF]
, 2011 Amir Babak Aazami +2 more
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Ontology of Gravitational Singularities
General relativity allows singularities, and we need to understand the ontology of singularities if we want to understand the nature of space and time in the present universe. Although some physicists believe that singularities indicate a failure of general relativity, others believe that singularities open a new horizon in cosmology, with real ...
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Singularities in theories of gravitation
, 1979 Imperial Users ...
Christodoulakis, T, Christodoulakis, T
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Soft Micromanipulation Robot for Real‐Time Adaptive Multimodal Operation
Advanced Science, EarlyView.This manuscript proposes a soft micromanipulator robot (SMR) for “full‐angle” precision biomedical operations. Bio‐inspired SMR achieves omnidirectional motion, micrometer precision, and multimodal capabilities including aspiration, transfer, rotation, assembly, injection, and cutting.
Zhuowei Li +8 more
wiley +1 more source
Singularities in the gravitational capture of dark matter through long-range interactions [PDF]
, 2022 Cristian Gaidău, Jessie Shelton
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Advanced Science, EarlyView.Through a cross‐scale structural design, a lightweight, heat‐resistant, and thermal‐insulating streamlined dual‐oxide nanofiber aerogel is prepared to achieve exceptional thermomechanical stability. Structural design of ceramic fibrous aerogel toward thermal protection, illustrating thermal insulation and stress dissipation.
Zijian Zhao +9 more
wiley +1 more source
From Complex Shaping to Mirror Finish: Additive Manufacturing of Aerospace‐grade Cf/SiC Space Optics
Advanced Science, EarlyView.An integrated additive manufacturing route combines selective laser sintering, engineered interphases, and optimized silicon infiltration to fabricate complex Cf/SiC composites. The approach enables precise shaping, high mechanical performance, and excellent optical reflectivity, offering a scalable solution for advanced aerospace optics with both ...
Buhao Zhang +8 more
wiley +1 more source