Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Lobkovsky, A. E."'
Autor:
Louzoun, Yoram, Lobkovsky, Alexander E., Levi, Lee, Wolf, Yuri I., Maiers, Martin, Gragert, Loren, Alter, Idan, Koonin, Eugene V.
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2019 Nov . 116(47), 23388-23389.
Externí odkaz:
https://www.jstor.org/stable/26861916
Autor:
Lobkovsky, Alexander E., Levi, Lee, Wolf, Yuri I., Maiers, Martin, Gragert, Loren, Alter, Idan, Louzoun, Yoram, Koonin, Eugene V.
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2019 Jul 01. 116(28), 14098-14104.
Externí odkaz:
https://www.jstor.org/stable/26760992
Experimental studies on enzyme evolution show that only a small fraction of all possible mutation trajectories are accessible to evolution. However, these experiments deal with individual enzymes and explore a tiny part of the fitness landscape. We r
Externí odkaz:
http://arxiv.org/abs/1108.3590
Autor:
Petroff, Alexander P., Devauchelle, Olivier, Abrams, Daniel M., Lobkovsky, Alexander E., Kudrolli, Arshad, Rothman, Daniel H.
Publikováno v:
Journal of Fluid Mechanics 673, 245-254 (2011)
Although amphitheater-shaped valley heads can be cut by groundwater flows emerging from springs, recent geological evidence suggests that other processes may also produce similar features, thus confounding the interpretations of such valley heads on
Externí odkaz:
http://arxiv.org/abs/1011.2782
Recent experimental and computational studies of vibrated thin layers of identical spheres have shown transitions to ordered phases similar to those seen in equilibrium systems. Motivated by these results, we carry out simulations of hard inelastic s
Externí odkaz:
http://arxiv.org/abs/1001.0881
Publikováno v:
J. Fluid Mech., 605, 47-58 (2008)
Motivated by examples of erosive incision of channels in sand, we investigate the motion of individual grains in a granular bed driven by a laminar fluid to give us new insights into the relationship between hydrodynamic stress and surface granular f
Externí odkaz:
http://arxiv.org/abs/0805.0086
We propose a dynamical model for the erosive growth of a channel in a granular medium driven by subsurface water flow. The model is inferred from experimental data acquired with a laser-aided imaging technique. The evolution equation for transverse s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505352
Autor:
Karma, Alain, Lobkovsky, Alexander E.
Publikováno v:
Phys. Rev. E, vol 71, no. 3 (2005)
The anisotropic motion of an interface driven by its intrinsic curvature or by an external field is investigated in the context of the kinetic Ising model in both two and three dimensions. We derive in two dimensions (2d) a continuum evolution equati
Externí odkaz:
http://arxiv.org/abs/cond-mat/0502219
We study channelization and slope destabilization driven by subsurface (groundwater) flow in a laboratory experiment. The pressure of the water entering the sandpile from below as well as the slope of the sandpile are varied. We present quantitative
Externí odkaz:
http://arxiv.org/abs/cond-mat/0502213
Autor:
Karma, Alain, Lobkovsky, Alexander E.
Crack propagation is studied numerically using a continuum phase-field approach to mode III brittle fracture. The results shed light on the physics that controls the speed of accelerating cracks and the characteristic branching instability at a fract
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401056