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Physics of the Earth and Planetary Interiors, 1984
A modification of the Boussinesq fluid assumption is the basis of the present theory of three-dimensional and finite amplitude convection in a viscous spherical shell with temperature- and pressure-dependent physical parameters. The theory is applied to the definition of thermal evolution models for Venus which emphasize the effects of certain physical
J. Arkani-Hamed, M.N. Toksöz
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A modification of the Boussinesq fluid assumption is the basis of the present theory of three-dimensional and finite amplitude convection in a viscous spherical shell with temperature- and pressure-dependent physical parameters. The theory is applied to the definition of thermal evolution models for Venus which emphasize the effects of certain physical
J. Arkani-Hamed, M.N. Toksöz
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Thermal force approach to molecular evolution
Physical Biology, 2004Recent experiments are discussed where temperature gradients across mesoscopic pores are shown to provide essential mechanisms for autonomous molecular evolution. On the one hand, laminar thermal convection can drive DNA replication as the molecules are continuously cycled between hot and cold regions of a chamber. On the other hand, thermophoresis can
Dieter, Braun, Albert, Libchaber
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2020
The study of Earth as an object whose history can be understood by application of physical laws dates back 200 years. This tradition is, however, rife with missteps related to as yet undiscovered physics or fundamentally incorrect assumptions. While the former is unavoidable, the latter amounts to self-inflicted wounds that may have forestalled ...
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The study of Earth as an object whose history can be understood by application of physical laws dates back 200 years. This tradition is, however, rife with missteps related to as yet undiscovered physics or fundamentally incorrect assumptions. While the former is unavoidable, the latter amounts to self-inflicted wounds that may have forestalled ...
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Thermal evolution of the Phlegraean magmatic system
Journal of Volcanology and Geothermal Research, 1999Abstract A series of 2-D conductive/convective numerical models show a rather limited range of possible magma chamber configurations that predict the present thermal regime at Campi Flegrei. These models are calculated by HEAT, which allows continuous adjustment of heterogeneous rock properties, magma injection/replenishment, and convective regimes ...
Wohletz K. +2 more
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Thermal evolution of Fe62.5Co6Ni7.5Zr6Nb2Cu1B15 metallic glass
Journal of Materials Science, 2002Thermal evolution of Fe62.5Co6Ni7.5Zr6Nb2Cu1B15 amorphous alloy prepared by one-roll melt-spinning technique was studied by XRD and DTA. The crystallisation process, occurring in several steps, can be summarised as follows: a → a′ + α-Fe → a″ + α-Fe + γ-Fe → α-Fe + γ-Fe + ZrB12, where a and a″ are amorphous phases, and a′ can be indexed as a γ-Fe (fcc)
BRANDA, FRANCESCO +5 more
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Thermal evolution of ferromagnetic metallic glasses
Journal of Thermal Analysis and Calorimetry, 2003A traditional TG apparatus was modified by placing two permanent magnets producing a controlled magnetic field (TG(M): Magneto Thermogravimetry). This technique proved to be useful to study both structural relaxation and crystallisation of ferromagnetic metallic glasses.
G. LUCIANI +4 more
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Profile evolution during thermal nanoimprint
Microelectronic Engineering, 2006The evolution of the profile of an imprinted line under squeeze-flow dominated thermal nanoimprint is investigated experimentally. The results indicate, that in the very first moment the stamp intrusion into the polymer is fast due to shear thinning at the periphery of the feature, proceeding along with the build-up of internal stress in the feature ...
H.-C. Scheer +4 more
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Thermal Evolution of Neutron Stars
Astrophysics and Space Science, 1998We present results from simulations of protoneutron star thermal evolution using neutrino opacities that are consistently calculated with the equation of state. When hyperons are allowed to appear in the system, we obtain metastable configurations that after the deleptonization stage become unstable.
Juan A. Miralles +2 more
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The Moon, 1972
The thermal history and current state of the lunar interior are investigated using constraints imposed by recent geological and physical data. Theoretical temperature models are computed taking into account different initial conditions, heat sources, differentiation and simulated convection.
M. Nafi Toksőz +3 more
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The thermal history and current state of the lunar interior are investigated using constraints imposed by recent geological and physical data. Theoretical temperature models are computed taking into account different initial conditions, heat sources, differentiation and simulated convection.
M. Nafi Toksőz +3 more
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Thermal evolution of Titan's atmosphere
Icarus, 1989The present model of Titan's atmosphere/surface evolution assumes the presence of a kilometer-deep ethane-methane ocean at the surface that serves as a tropospheric thermal balance-determining atmospheric-gas reservoir. The evolution of the atmospheric thermal structure is driven by gas-abundance changes occurring as stratospheric photolysis ...
Jonathan I. Lunine, Bashar Rizk
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