Enthalpie de sublimation du soufre α : mesure calorimétrique
L'existence d'une phase vapeur de composition complexe au-dessus de certains éléments rend délicate la définition d'une enthalpie d'évaporation par atome-gramme de l'élément : dans le cas du soufre α, nous avons utilisé une méthode calorimétrique directe qui conduit à : ΔHvap(298,15K)= 13,05±0,1 kJ/atome-gramme.
Chastel, R., Ezzine, M.
openaire +2 more sources
We suggest that in the rare case of an Intermediate-Luminosity Optical Transient (ILOTs) event, evaporation of extra-solar Kuiper belt objects (ExtraKBOs) at distances of d ~ 500 - 10000AU from the ILOT can be detected. If the ILOT lasts for 1 month to a
Bear, Ealeal, Soker, Noam
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Thermodynamics and kinetics of heterogeneous reactions [PDF]
Thermodynamics and kinetics of sublimation, catalytic, and oxidation ...
Batty, J. C., Stickney, R. E.
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Orbital debris removal with solar concentrators [PDF]
In 1993 solar concentrators were first proposed to deflect asteroids away from a collision course with the Earth. The original concept was expanded by the authors, and proved to be effective and technologically feasible.
Maddock, Christie +2 more
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Performance evaluation of 'thermo-lag' material for entry heat protection of advanced manned spacecraft. vol. 1- summary of investigations final report, 1 oct. 1962 - 31 jan. 1964 [PDF]
Thermoconductivity and thermal properties of protective coating and structural material for reentry manned ...
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Giant ripples on comet 67P/Churyumov-Gerasimenko sculpted by sunset thermal wind
Explaining the unexpected presence of dune-like patterns at the surface of the comet 67P/Churyumov-Gerasimenko requires conceptual and quantitative advances in the understanding of surface and outgassing processes. We show here that vapor flow emitted by
Andreotti, B., Claudin, P., Jia, P.
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Containerless high temperature property measurements by atomic fluorescence [PDF]
Laser induced fluorescence (LIF) techniques for containerless study of high temperature processes and material properties was studied. Gas jet and electromagnetic levitation and electromagnetic and laser heating techniques are used with LIF in earth ...
Schiffman, R. A., Walker, C. A.
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Design and Development of Vapor Absorption Refrigeration System for Rural Dwellers [PDF]
In this study, the experimental analysis of the performance of vapor absorption system was developed and developed. The influence of generator, evaporator and condenser’s temperatures on the system performance was studied using gas burner as source of ...
Adekeye, T. +2 more
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Reinterpretation of Mariner 9 IRIS data on the basics of a simulation of radiative-conductive transfer in the dust-laden Martian atmosphere [PDF]
A reinterpretation of the convective heat transport concept is presented for the IRIS measurements as an essential energy transfer mechanism. Thermal convection in a radiatively heated ground atmosphere system is discussed along with CO2 sublimation and ...
Pallmann, A. J.
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Demonstration of the range over which the Langley Research Center digital computer charring ablation program (CHAP) can be used with confidence: Comparisons of CHAP predictions and test data for three ablation materials [PDF]
Comparisons of ablation calculations with the charring ablation computer code and ablation test data are presented over a wide range of environmental conditions in air for three materials: low-density nylon phenolic, Avcoat 5026-39HC/G, and a filled ...
Green, K. A., Moyer, C. B.
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