980 resultados para Vail, Theodore Newton, 1845-1920.


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Reporters: 1896-1905, M.T. Hun.--1906-1919, J.B. Fisher.--1920-1942, A.B. Griffin.

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L. C. set incomplete: v. 1 wanting.

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Aims: X-ray emission is an important diagnostics to study magnetic activity in very low mass stars that are presumably fully convective and have an effectively neutral photosphere. Methods: We investigate an XMM-Newton observation of SCR 1845-6357, a nearby, ultracool M 8.5 / T 5.5 dwarf binary. The binary is unresolved in the XMM detectors, but the X-ray emission is very likely from the M 8.5 dwarf. We compare its flaring emission to those of similar very low mass stars and additionally present an XMM observation of the M 8 dwarf VB 10. Results: We detect quasi-quiescent X-ray emission from SCR 1845-6357 at soft X-ray energies in the 0.2-2.0 keV band, as well as a strong flare with a count rate increase of a factor of 30 and a duration of only 10 min. The quasi-quiescent X-ray luminosity of log LX = 26.2 erg/s and the corresponding activity level of log LX/Lbol = -3.8 point to a fairly active star. Coronal temperatures of up to 5 MK and frequent minor variability support this picture. During the flare, which is accompanied by a significant brightening in the near-UV, plasma temperatures of 25-30 MK are observed and an X-ray luminosity of LX = 8 × 1027 erg/s is reached. Conclusions: The source SCR 1845-6357 is a nearby, very low mass star that emits X-rays at detectable levels in quasi-quiescence, implying the existence of a corona. The high activity level, coronal temperatures and the observed large flare point to a rather active star, despite its estimated age of a few Gyr.

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This group of records contains deeds and related documents for a selection of properties owned by Harvard University in Boston and possibly Cambridge and other nearby communities through the mid 1940s. Documents include deeds, assignments of mortgages, receipts, correspondence, and other legal documents. Many of the documents record property transfers prior to Harvard's acquisition of the property, and often the documents do not fully identify Harvard's involvement with the property. The bulk of the documents date from the late 19th and early 20th centuries.

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No more published.

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"First printed in the New republic for January 25, 1919, under the title, Roosevelt now."

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Mode of access: Internet.

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Back Row: trainer Archie Hahn, manager McKean

3rd Row: ass't coach Douglas, Edward Usher, Abe Cohn, Paul Goebel, James Johns, Viggo Nelson, Bill Van Orden, ass't coach Watson

2nd Row: Frank Steketee, Ernie Vick, captain Angus Goetz, Coach Fielding Yost, Elton Wieman, Hugh Wilson, R. Jerome Dunne

Front Row: Theodore Bank, John Perrin, John Dunn

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Back Row: assistant coach A.J. Sturznegger, Richard Rowland, Frank Czysz, Abe Cohn, George Planck, James Johns, Louis Lehman, William Van Orden, assistatn coach Robert Watson,

Center Row: John Searle, Allen Bailey, Grenville Andrews, Theodore Banks, George Gilmore, Horace Wachter, Frank Steketee, Meyer Paper, Charles Petro, assistant coach Prentiss Douglas

Front Row: Edward Usher, John Perrin, Viggo Nelson, John Dunn, Robert Jerome Dunne, Tad Wieman, head coach Fielding Yost, Angus Goetz, Ernie Vick, Hugh Wilson, Franklin Cappon, William Fortune

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Back Row: assistant coach A.J. Sturznegger, Richard Rowland, Frank Czysz, Abe Cohn, George Planck, James Johns, Louis Lehman, William Van Orden, assistant coach Robert Watson,

Center Row: John Searle, Allen Bailey, Grenville Andrews, Theodore Banks, George Gilmore, Horace Wachter, Frank Steketee, Meyer Paper, Charles Petro, assistant coach Prentiss Douglas

Front Row: Edward Usher, John Perrin, Viggo Nelson, John Dunn, Robert Jerome Dunne, Tad Wieman, head coach Fielding Yost, Angus Goetz, Ernie Vick, Hugh Wilson, Franklin Cappon, William Fortune

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"Explanation of sheet 339."

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Adiabatic compression testing of components in gaseous oxygen is a test method that is utilized worldwide and is commonly required to qualify a component for ignition tolerance under its intended service. This testing is required by many industry standards organizations and government agencies. This paper traces the background of adiabatic compression testing in the oxygen community and discusses the thermodynamic and fluid dynamic processes that occur during rapid pressure surges. This paper is the first of several papers by the authors on the subject of adiabatic compression testing and is presented as a non-comprehensive background and introduction.