985 resultados para 150-902A
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We have resolved the solid-liquid phase transition of carbon at pressures around 150GPa. High-pressure samples of different temperatures were created by laser-driven shock compression of graphite and varying the initial density from 1.30g/cm3 to 2.25g/cm3. In this way, temperatures from 5700K to 14,500K could be achieved for relatively constant pressure according to hydrodynamic simulations. From measuring the elastic X-ray scattering intensity of vanadium K-alpha radiation at 4.95keVat a scattering angle of 126°, which is very sensitive to the solid-liquid transition, we can determine whether the sample had transitioned to the fluid phase. We find that samples of initial density 1.3g/cm3 and 1.85g/cm3 are liquid in the compressed states, whereas samples close to the ideal graphite crystal density of 2.25g/cm3 remain solid, probably in a diamond-like state.
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Se presentaron los resultados de la modificación y adaptaciones de la red pelágica 124/1800 para la captura del recurso Vinciguerria.
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Collection : Théâtre contemporain illustré ; 156e et 157e livraisons
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Collection : Théâtre contemporain illustré ; 156e et 157e livraisons
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Servicios registrales
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Servicios registrales
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Servicios registrales
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Credit to S.D. Woodruff from Pratt and Company for $150.00, Sept. 7, 1876.
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Broadside, 45 cm. x 30 cm. of a requisition to W. Woodruff from William W. Ball, John McBride, Robert N. Ball, W. Servos, Joseph Wynn and 150 other people for Mr. Woodruff to run as a Representative in Parliament. This is followed by a positive, and humble response from Mr. Woodruff, June 3, 1856.