Results 251 to 260 of about 1,069,730 (289)
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The thermal evolution of sporopollenin
Organic Geochemistry, 2000Abstract Micro Fourier-Transform Infrared (FT–IR) spectroscopy in combination with transmitted and reflected light microspectrophotometry relates the chemical and physical properties of sporopollenin during thermal maturation; the physical properties measured being colour, as the chromaticity coordinates a *, b * and L *, (luminance) and the ...
Yule, B.L. +2 more
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Journal of Thermal Analysis and Calorimetry, 2007
The thermal evolution of a slate rock sample (Berja, Almeria, Spain) has been studied. The phase minerals identified in this sample were mica (illite), chlorite (clinochlore) and quartz as major components, with minor microcline, iron oxide and a mixed-layer or interstratified phase (montmorillonite-chlorite).
P. J. Sánchez-Soto +4 more
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The thermal evolution of a slate rock sample (Berja, Almeria, Spain) has been studied. The phase minerals identified in this sample were mica (illite), chlorite (clinochlore) and quartz as major components, with minor microcline, iron oxide and a mixed-layer or interstratified phase (montmorillonite-chlorite).
P. J. Sánchez-Soto +4 more
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Thermal evolution of cratonic roots
Lithos, 2009ARTICLE I NFO Cratons stabilized in the Archean because their mantle roots remained strong despite temperatures in the convecting mantle and amounts of radiogenic elements in the crust and in the lithospheric mantle that were larger than today. Thermal evolutionary models are developed using constraints from heat flow and heat production data in ...
Michaut, Chloé +2 more
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Thermal evolution of the earth
Tectonophysics, 1981Abstract Models to study the thermal evolution of the earth have been developed based on a calculation of finite-amplitude thermal convection in an incompressible and viscous mantle with temperature and pressure-dependent physical parameters. The lateral dependences of the variables are resolved through their spherical harmonic representations, while
Jafar Arkani-Hamed +2 more
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Thermal Evolution of Kaolinite
2013Methods used by various investigators for ascertaining thermal decomposition of kaolinite are chronologically submitted in a comprehensive manner and then a summary is given.
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Time evolution of thermal instabilities
The Physics of Fluids, 1977The steady-state temperature profiles in a magnetically confined cylindrical plasma obtained by balancing Ohmic power input and thermal diffusion are shown to exhibit a bifurcation as a function of the applied electric field. A linear stability analysis predicts that the upper (high temperature) branch is unstable and that the lower branch is stable ...
D. Dobrott, R. L. Miller, John M. Rawls
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Elasticity of calcite: thermal evolution
Physics and Chemistry of Minerals, 2012The elastic properties of calcite have been determined by Brillouin spectroscopy for temperatures up to 600 °C. The results reveal that the variations of the aggregate bulk (K VRH) and shear (G VRH) moduli of calcite with respect to temperature can be approximately expressed as follows:
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Thermal evolution of comet nuclei
Advances in Space Research, 1999Abstract The properties of cometary surfaces which influence the thermal behavior of the nucleus such as the albedo, the emissivity and the surface temperature are critically reviewed. It is shown that these properties are less firmly established than generally believed. A brief presentation is given of the state of the art in comet modelling.
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Transforming heat transfer with thermal metamaterials and devices
Nature Reviews Materials, 2021Ying Li, Wei Li, Tiancheng Han
exaly