Results 11 to 20 of about 272,169 (104)

Reconstructing Classical Algebras via Ternary Operations

Mathematics
Although algebraic structures are frequently analyzed using unary and binary operations, they can also be effectively defined and unified using ternary operations.
Jorge P. Fatelo, Nelson Martins-Ferreira
doaj   +1 more source

The discovery and dynamical evolution of an object at the outer edge of Saturn's A ring [PDF]

, 2014
This work was supported by the Science and Technology Facilities Council (Grant No. ST/F007566/1) and we are grateful to them for financial assistance. C.D.M.
Beurle, Carl D. Murray, Charnoz, Charnoz, Crida, Crida, Cuzzi, Gareth A. Williams, Jacobson, Jeffrey S. Boyer, Murray, Nicholas J. Cooper, Nicholas O. Attree, Pan, Porco, Porco, Spitale, Thomas, Tiscareno, Tiscareno, Tiscareno   +20 more
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Flow patterns generated by oblate medusan jellyfish: field measurements and laboratory analyses [PDF]

, 2005
Flow patterns generated by medusan swimmers such as jellyfish are known to differ according the morphology of the various animal species. Oblate medusae have been previously observed to generate vortex ring structures during the propulsive cycle ...
Colin, Sean P., Costello, John H., Dabiri, John O., Gharib, Morteza   +3 more
core   +10 more sources

Cold forging tool for gear accuracy grade improvement by a different shrink fitting method

REM: International Engineering Journal
The manufacturing of the gear profile by Metal Forming is widely used in industry due to its quality and production capability. Direct cold extrusion has this characteristic and with support of peripheral technologies allows the development of asymmetric
Fabrício Dreher Silveira, Lírio Schaeffer   +1 more
doaj   +1 more source

Analytic study of self-gravitating polytropic spheres with light rings

, 2018
Ultra-compact objects describe horizonless solutions of the Einstein field equations which, like black-hole spacetimes, possess null circular geodesics (closed light rings).
Hod, Shahar
core   +1 more source

Type III migration in a low viscosity disc [PDF]

, 2010
We study the type III migration of a Saturn mass planet in low viscosity discs. The planet is found to experience cyclic episodes of rapid decay in orbital radius, each amounting to a few Hill radii.
Balmforth, de Val-Borro, de Val-Borro, D’Angelo, Goldreich, Goldreich, John C. B. Papaloizou, Kevlahan, Koller, Korycansky, Li, Li, Li, Li, Lin, Lovelace, Lynden Bell, Masset, Masset, Masset, Mayor, Min-Kai Lin, Ou, Paardekooper, Paardekooper, Papaloizou, Papaloizou, Papaloizou, Papaloizou, Papaloizou, Papaloizou, Papaloizou, Papaloizou, Pepliński, Pepliński, Pepliński, Press, Stone, Tanaka, Ward   +39 more
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Liftable derivations for generically separably algebraic morphisms of schemes

, 2006
We consider dominant, generically algebraic, and tamely ramified (if the characteristic is positive) morphisms $\pi: X/S \to Y/S$, where Y,S are Noetherian and integral and X is a Krull scheme (e.g.
Källström, Rolf
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Relative Stability and Local Curvature Analysis in Carbon Nanotori [PDF]

, 2015
We introduce a concise formalism to characterize nanometer-sized tori based on carbon nanotubes and to determine their stability by combining {\em ab initio} density functional calculations with a continuum elasticity theory approach that requires only ...
Chuang, Chern, Guan, Jie, Jin, Bih-Yaw, Tomanek, David, Witalka, David, Zhu, Zhen   +5 more
core   +2 more sources

Hydrodynamical Simulations of Nuclear Rings in Barred Galaxies

, 2015
Dust lanes, nuclear rings, and nuclear spirals are typical gas structures in the inner region of barred galaxies. Their shapes and properties are linked to the physical parameters of the host galaxy.
Kim, Woong-Tae, Li, Zhi, Shen, Juntai
core   +1 more source

Kinematics of the outer pseudorings and the spiral structure of the Galaxy [PDF]

, 2008
The kinematics of the outer rings and pseudorings is determined by two processes: the resonance tuning and the gas outflow. The resonance kinematics is clearly observed in the pure rings, while the kinematics of the gas outflow is manifested itself in ...
A. Cabrera-Lavers, A. J. Kalnajs, A. K. Dambis, A. K. Dambis, A. M. Mel’nik, A. M. Mel’nik, A. M. Mel’nik, A. M. Mel’nik, B. J. Weiner, C. Blaha, C. C. Lin, C. C. Lin, C. D. Garmany, D. Russeil, E. Athanassoula, E. V. Glushkova, G. Byrd, G. Contopoulos, H. J. Habing, H. Salo, J. Binney, J. Brand, J. Kovalevsky, J. P. Vallée, L. N. Berdnikov, M. P. Schwarz, M. P. Schwarz, M. Romero-Gómez, P. Englmaier, P. Rautiainen, P. Rautiainen, P. Rautiainen, P. Rautiainen, R. A. Benjamin, R. Buta, R. Buta, R. Buta, R. M. Humphreys, R. M. Humphreys, T. G. Sitnik, T. G. Sitnik, V. S. Avedisova, W. B. Burton, W. B. Burton, W. B. Burton, W. W. Roberts, Y. M. Georgelin, Y. N. Efremov, Y. N. Efremov   +48 more
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