| 11. | In convection, the energy transfer through the flow field is both by thermal diffusion and enthalpy flow.
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| 12. | The thermal diffusion effort continued, however.
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| 13. | In February 1945, slightly enriched 1.4 percent uranium-235 feed material began arriving from the S-50 liquid thermal diffusion plant.
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| 14. | "' Thermal transpiration "'or "'thermal diffusion "'refers to the thermal force on a gas due to a temperature difference.
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| 15. | In the Naval Laboratory Philip Abelson developed the liquid thermal diffusion technique for separating U-235 for the Manhattan Project.
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| 16. | Thermal diffusion was not initially regarded as very promising, but Gunn was impressed by Philip Abelson's efforts on it.
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| 17. | Figure D shows three different regions : the tunneling region, the negative differential resistance region and the thermal diffusion region.
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| 18. | The thermal diffusion length ( the distance the heat spreads ) is inversely proportional to the root of the modulation frequency.
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| 19. | In February the Alpha racetracks began receiving slightly enriched ( 1.4 % ) feed from the new S-50 thermal diffusion plant.
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| 20. | At Liverpool they focused on the separation of isotopes through thermal diffusion as was suggested in the Frish / Peierls memorandum.
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