Results 81 to 90 of about 17,434 (263)
Thin accretion disk around rotating hairy black hole: radiative property and optical appearance
European Physical Journal C: Particles and FieldsThe gravitational decoupling method systematically generates hairy modifications to the solutions in general relativity due to new gravitational sources.
Zhen Li, Xiao-Kan Guo
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Eigenfrequency sensitivity analysis of flexible rotors [PDF]
Applied and Computational Mechanics, 2007 This paper deals with sensitivity analysis of eigenfrequencies from the viewpoint of design parameters. The sensitivity analysis is applied to a rotor which consists of a shaft and a disk. The design parameters of sensitivity analysis are the disk radius
Šašek J.
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Advanced Materials, EarlyView.Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu +3 more
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Numerical simulation of turbulent flow between shrouded contra-rotating disks
Advances in Mechanical Engineering, 2016 The turbulent flow between shrouded contra-rotating disks was numerically studied with a two-layer turbulence model and a modified Launder–Sharma low-Reynolds number k - ε model.
Shu-Xian Chen +3 more
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Advanced 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
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Counter-rotating relativistic static thin disks
Revista Integración, 2001 A detailed study of the Counter-Rotating Model (CRM) for generic fi-nite static axially symmetric thin disks with nonzero radial pressure is presented.
Omar A. Espitia, Guillermo A. González
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Transactions of the Japan Society of Mechanical Engineers, 1952 The criterion for rupture of brittle materials like cast iron is σ=σB, where, σ is mean value of normal tensile stress on the surface of rupture ; the mean is generally a weighted mean, the effectiveness to the load being taken into account, and σB is ultimate tensile strength.
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Advanced Materials, EarlyView.Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan +10 more
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Basic Generic Properties of Regular Rotating Black Holes and Solitons
Advances in Mathematical Physics, 2017 We present a systematic description of the basic generic properties of regular rotating black holes and solitons (compact nonsingular nondissipative objects without horizons related by self-interaction and replacing naked singularities). Rotating objects
Irina Dymnikova, Evgeny Galaktionov
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Relativistic disks - I. Counter rotating disks [PDF]
Monthly Notices of the Royal Astronomical Society, 1978 Lynden-Bell, D., Pineault, S.
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