Results 271 to 280 of about 183,990 (318)
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SPH Simulation of River Ice Dynamics
Journal of Computational Physics, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shen, Hung Tao, Su, Junshan, Liu, Lianwu
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1993
When modelling large ice sheets, local equilibrium of a vertical column with the size of the horizontal mesh (~ 100 km) can be assumed. The transit time of temperature disturbances from surface to bottom is ~ 60 ka. Thus, in general, actual and ice ages ice sheets are not in a steady state.
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When modelling large ice sheets, local equilibrium of a vertical column with the size of the horizontal mesh (~ 100 km) can be assumed. The transit time of temperature disturbances from surface to bottom is ~ 60 ka. Thus, in general, actual and ice ages ice sheets are not in a steady state.
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Dynamical crossover in hot spin ice
Journal of Physics: Condensed Matter, 2002The magnetic dynamics of the spin ice material Ho2Ti2O7 in its paramagnetic ('hot') phase have been investigated by a combination of neutron spin echo and ac-susceptibility techniques. Relaxation at high temperatures ( 15$>T > 15 K) is proved to occur by a thermally activated single-ion process that is distinct from the process that dominates at lower ...
Ehlers, G. +6 more
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Tests on Dynamic Ice-Structure Interaction
Volume 3: Materials Technology; Ocean Engineering; Polar and Arctic Sciences and Technology; Workshops, 2003This paper addresses the problem of ice induced vibration of offshore structures. Compliant structures having vertical ice walls may suffer from very severe vibrations. Several theories have been proposed to predict these vibrations. However, physical details of this phenomenon are not fully understood.
Kärnä, Tuomo +6 more
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Dynamic Surface Temperature Measurements in ICs
Proceedings of the IEEE, 2006no ...
Altet, J. +3 more
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Geophysical & Astrophysical Fluid Dynamics, 1992
This paper surveys the problem of modelling the dynamics of large ice sheets. A simplified model for two-dimensional plane ice sheets is derived, and both isothermal and non-isothermal cases are co...
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This paper surveys the problem of modelling the dynamics of large ice sheets. A simplified model for two-dimensional plane ice sheets is derived, and both isothermal and non-isothermal cases are co...
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2001
Four sea ice dynamics models (elastic-plastic, viscous-plastic, elastic-viscousplastic, and anisotropic elastic-plastic) are reviewed, with the goal of introducing common terminology and notation. Thickness distribution is used to describe ice conditions, which are also approximated by a two-layer model and generalized by an oriented thickness ...
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Four sea ice dynamics models (elastic-plastic, viscous-plastic, elastic-viscousplastic, and anisotropic elastic-plastic) are reviewed, with the goal of introducing common terminology and notation. Thickness distribution is used to describe ice conditions, which are also approximated by a two-layer model and generalized by an oriented thickness ...
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1989
A dominant characteristic of sea ice in the polar regions is its almost constant drift and deformation. Because of this deformation, a typical 100 km2 patch of sea ice will contain a variety of ice thicknesses, ranging from open water to very thick ice, to ridges extending possibly 30 m or more below the surface.
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A dominant characteristic of sea ice in the polar regions is its almost constant drift and deformation. Because of this deformation, a typical 100 km2 patch of sea ice will contain a variety of ice thicknesses, ranging from open water to very thick ice, to ridges extending possibly 30 m or more below the surface.
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Physical review letters, 2009
In this Letter, we report a new spin ice--Pr2Sn2O7--which appears to have enhanced residual entropy due to the dynamic nature of the spins. Neutron scattering experiments show that at 200 mK, there is a significant amount of magnetic diffuse scattering which can be fit to the dipolar spin-ice model.
H D, Zhou +7 more
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In this Letter, we report a new spin ice--Pr2Sn2O7--which appears to have enhanced residual entropy due to the dynamic nature of the spins. Neutron scattering experiments show that at 200 mK, there is a significant amount of magnetic diffuse scattering which can be fit to the dipolar spin-ice model.
H D, Zhou +7 more
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1985
Publisher Summary This chapter discusses various aspects of the modeling of sea-ice dynamics. Large areas of polar oceans are covered with a thin, variably thick layer of ice formed mainly from freezing seawater and accumulated snowfall. The understanding of the dynamic characteristics of the ice cover is important for understanding air–sea ...
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Publisher Summary This chapter discusses various aspects of the modeling of sea-ice dynamics. Large areas of polar oceans are covered with a thin, variably thick layer of ice formed mainly from freezing seawater and accumulated snowfall. The understanding of the dynamic characteristics of the ice cover is important for understanding air–sea ...
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