Results 11 to 20 of about 113,829 (241)
Removal of conical singularities from rotating C-metrics and dual CFT entropy
Journal of High Energy Physics, 2022 We show how to remove from the rotating C-metric spacetime, which describes accelerating Kerr black holes, both conical singularities. This can be done by embedding the metric into a swirling gravitational universe, through a proper Ehlers transformation.
Marco Astorino
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Liftings and Weak Liftings of Modules
Journal of Algebra, 1993 The context is mod \(\Lambda\), the category of all finitely generated (left) modules over a noetherian \(R\)-algebra \(\Lambda\) for a commutative local ring \(R\). Let \(\Lambda \to \Gamma\) be a homomorphism of rings and let \(M\) be in mod \(\Gamma\).
Auslander, M., Ding, S., Solberg, O.
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Sensors, 2023 Navigating between the different floors of a multistory building is a task that requires walking up or down stairs or taking an elevator or lift. This work proposes a procedure to take a remotely controlled elevator with an autonomous mobile robot based ...
Jordi Palacín +3 more
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Effects of Different Shaped Cavities and Bumps on Flow Structure and Wing Performance [PDF]
Journal of Applied Fluid Mechanics, 2022 The stall of an aircraft is one of the most dangerous phenomena in the aviation world, resulting in a sudden loss of lift because of boundary layer separation. This work aims to delay separation and to improve wing aerodynamic performances by introducing
A. Mahboub, M. Bouzit, A. Ghenaim
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Comparative analysis and manufacturing of airfoil structures suitable for use at low speeds
Journal of Advanced Research in Natural and Applied Sciences, 2022 An aerodynamic technique to calculating lift and drag coefficients is one of the required instruments in the wing design process. During the last decades, several tools and software have been developed according to aero-dynamics and numerical methods ...
Sinan Fidan +2 more
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Supersonic Flow over Elliptic Cone with Different Ellipticity Ratio [PDF]
Journal of Applied Fluid Mechanics, 2023 This study investigates supersonic flow characteristics over circular and elliptic cones at various angles of attack. Simulations were conducted on the cones with the same base area and length-to-diameter ratio.
V. Kotebavi, S. G. Rakesh
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Dynamics and effective distance of gas–liquid two-phase swirling flow induced by vortex tools
Advances in Mechanical Engineering, 2018 Based on the mechanistic model of the two-phase swirling annular flow behavior, a calculation method for the effective distance of vortex tool is obtained by taking Kelvin–Helmholtz instability into account.
Zhao Zhang, Ruiquan Liao, Jie Liu
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Frontiers in ImmunologyNeutrophils are the most common type of white blood cell in the body, acting as crucial mediators of innate immunity. They initiate immune responses against invading microorganisms and threats like cancerous cells.
Connor McGarrity-Cottrell +8 more
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Вестник хирургии имени И.И. Грекова, 2023 The OBJECTIVE was to improve the treatment outcomes of patients with chronic paraproctitis using the combination of minimally invasive techniques.METHODS AND MATERIALS.
I. V. Gor +2 more
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NanomaterialsSemiconductor nanocrystals with a perovskite crystal structure, both fully inorganic and hybrid, have found broad application as scintillation materials over the past decade, owing to their high absorption capability, fast response time, tunable optical ...
Pavel M. Sokolov +4 more
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