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Posledne pridané:
2015-08-28
07:53
Probing equilibrium glass flow up to exapoise viscosities / Pogna, E A A ; Rodríguez-Tinoco, C ; Cerullo, G ; Ferrante, C ; Rodríguez-Viejo, J ; Scopigno, T
Glasses are out-of-equilibrium systems aging under the crystallization threat. During ordinary glass formation, the atomic diffusion slows down rendering its experimental investigation impractically long, to the extent that a timescale divergence is taken for granted by many. [...]
arXiv:1508.06896.- 2015 - Published in : Proceedings of the National Academy of Science 112 (2015) 2331-2335 External link: Preprint

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2015-08-28
07:53
Highly Efficient Midinfrared On-Chip Electrical Generation of Graphene Plasmons by Inelastic Electron Tunneling Excitation / Ooi, Kelvin J A ; Chu, Hong Son ; Hsieh, Chang Yu ; Tan, Dawn T H ; Ang, Lay Kee
Inelastic electron tunneling provides a low-energy pathway for the excitation of surface plasmons and light emission. We theoretically investigate tunnel junctions based on metals and graphene. [...]
arXiv:1508.06742.- 2015 - 12 p. - Published in : Physical Review Applied 3(5), 054001 (2015) External link: Preprint

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2015-08-28
07:53
A review of East Asian reports of aurorae and comets circa AD 775 / Chapman, Jesse (U Berkeley) ; Neuhaeuser, Dagmar (Jena) ; Neuhaeuser, Ralph (U Jena) ; Csikszentmihalyi, Mark (U Berkeley)
Given that a strong 14C variation in AD 775 has recently been suggested to be due to the largest solar flare ever recorded in history, it is relevant to investigate whether celestial events observed around that time may have been aurorae, possibly even very strong aurorae, or otherwise related to the 14C variation (e.g. a suggested comet impact with Earth's atmosphere). [...]
arXiv:1508.06627.- 2015 - 15 p. - Published in : Astronomical Notes: 3 (2015) , pp. 6 External link: Preprint

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2015-08-28
07:53
Nuclear forces and their impact on neutron-rich nuclei and neutron-rich matter / Hebeler, K ; Holt, J D ; Menendez, J ; Schwenk, A
We review the impact of nuclear forces on matter at neutron-rich extremes. Recent results have shown that neutron-rich nuclei become increasingly sensitive to three-nucleon forces, which are at the forefront of theoretical developments based on effective field theories of quantum chromodynamics. [...]
arXiv:1508.06893.- 2015 - 28 p. - Published in : Annu. Rev. Nucl. Part. Sci. 65 (2015) 457 External link: Preprint

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2015-08-28
07:50
Unusual Solar Radio Burst Observed at Decameter Wavelengths / Melnik, V N ; Brazhenko, A I ; Konovalenko, A A ; Rucker, H O ; Frantsuzenko, A V ; Dorovskyy, V V ; Panchenko, M ; Stanislavskyy, A A
An unusual solar burst was observed simultaneously by two decameter radio telescopes UTR-2 (Kharkov, Ukraine) and URAN-2 (Poltava, Ukraine) on 3 June 2011 in the frequency range 16-28 MHz. The observed radio burst has some unusual properties, which are not typical for the other types of solar radio bursts. [...]
arXiv:1508.06806.- 2015 - Published in : Issue 1 (2014) 263-278 External link: Preprint

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2015-08-28
07:50
Fine and superfine structure of Decameter-Hectometer type II burst on 2011 June 7 / Dorovskyy, V V ; Melnik, V N ; Konovalenko, A A ; Brazhenko, A I ; Panchenko, M ; Poedts, S ; Mykhaylov, V A
The characteristics of the type II bursts with herringbone structure observed both by ground based radio telescopes (UTR-2, URAN-2) and spaceborn spectrometers (STEREO A-B) are discussed. The burst was recorded on 7 June, 2011 in the frequency band 3--33~MHz. [...]
arXiv:1508.06801.- 2015 - Published in : Issue 7 (2015) 2031-2042 External link: Preprint

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2015-08-28
07:50
Multivariate Approaches to Classification in Extragalactic Astronomy / Fraix-Burnet, Didier (IPAG) ; Thuillard, Marc ; Chattopadhyay, Asis Kumar
Clustering objects into synthetic groups is a natural activity of any science. Astrophysics is not an exception and is now facing a deluge of data. [...]
arXiv:1508.06756.- 2015 - Published in : Lee Samuel Finn 2 (2015) 00 External link: Preprint

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2015-08-27
07:57
Subcritical versus supercritical transition to turbulence in curved pipes / Kühnen, J ; Braunshier, P ; Schwegel, M ; Kuhlmann, H ; Hof, B
Transition to turbulence in straight pipes occurs in spite of the linear stability of the laminar Hagen--Poiseuille flow if the amplitude of flow perturbations as well as the Reynolds number exceed a minimum threshold (subcritical transition). As the pipe curvature increases centrifugal effects become important, modifying the basic flow as well as the most unstable linear modes. [...]
arXiv:1508.06559.- 2015 - Published in : J. Fluid Mech. 770, May 2015, R3 External link: Preprint

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2015-08-27
07:57
Experimental investigation of transitional flow in a toroidal pipe / Kühnen, J ; Holzner, M ; Hof, B ; Kuhlmann, H
The flow instability and further transition to turbulence in a toroidal pipe (torus) with curvature (tube-to-coiling diameter) 0.049 is investigated experimentally. The flow inside the toroidal pipe is driven by a steel sphere fitted to the inner pipe diameter. [...]
arXiv:1508.06546.- 2015 - Published in : Journal of Fluid Mechanics, Volume 738, January 2014, pp 463- 491 External link: Preprint

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2015-08-27
07:57
Network Community Detection on Metric Space / Saha, Suman ; Ghrera, Satya P
Community detection in a complex network is an important problem of much interest in recent years. In general, a community detection algorithm chooses an objective function and captures the communities of the network by optimizing the objective function, and then, one uses various heuristics to solve the optimization problem to extract the interesting communities for the user. [...]
arXiv:1508.06380.- 2015 - Published in : Algorithms 8 (2015) 680-696 External link: Preprint

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