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‣ Topics in Library Technology: Charging Systems *

Balkema, John B.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em /01/1966 Português
Relevância na Pesquisa
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Methods of circulation control, using the Newark Charging System as a prototype, are reviewed. Two criteria for a charging system in a university and special library are that it must show both location and due date of materials taken out of the library. The transaction card, charging machine, punched card, and computer are devices designed to speed up conventional procedures. They are described and evaluated according to the aforementioned criteria.

‣ Notes on Punched-Card Systems for Medical Research Data: I. The Binary-Ternary-Decimal Code

Davis, John F.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em 02/01/1960 Português
Relevância na Pesquisa
38.03325%

‣ Enhancement of catalog processing system for MIT Science Fiction Society

Wheeler, Cheryl Ann
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 51 leaves; 2047023 bytes; 2046783 bytes; application/pdf; application/pdf
Português
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38.202412%
by Cheryl Ann Wheeler.; Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1982.; MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING; Includes bibliographical references.

‣ Keepers of the Double Stars

Tenn, Joseph S.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 19/04/2013 Português
Relevância na Pesquisa
29.170718%
Astronomers have long tracked double stars in efforts to find those that are gravitationally-bound binaries and then to determine their orbits. Early catalogues by the Herschels, Struves, and others began with their own discoveries. In 1906 court reporter and amateur astronomer Sherburne Wesley Burnham published a massive double star catalogue containing data from many observers on more than 13,000 systems. Lick Observatory astronomer Robert Grant Aitken produced a much larger catalogue in 1932 and coordinated with Robert Innes of Johannesburg, who catalogued the southern systems. Aitken maintained and expanded Burnham's records of observations on handwritten file cards, and eventually turned them over to the Lick Observatory, where astrometrist Hamilton Jeffers further expanded the collection and put all the observations on punched cards. With the aid of Frances M. "Rete" Greeby he made two catalogues: an Index Catalogue with basic data about each star, and a complete catalogue of observations, with one observation per punched card. He enlisted Willem van den Bos of Johannesburg to add southern stars, and together they published the Index Catalogue of Visual Double Stars, 1961.0. As Jeffers approached retirement he became greatly concerned about the disposition of the catalogues. He wanted to be replaced by another "double star man...