... The technology needed to implement a Distributed Astronomical Data Archive (DADA) is available today (e.g., Fullton 1993). Query interface standards are needed, however, before the DADA information will be discoverable. ... These parameters would be used to index each dataset in each catalog. ... The technology is available today to perform cross-catalog queries, to fetch the data at the click of a mouse, quickly to add new observation catalogs, and to distribute the load across multiple machines. ...
Interstellar Radio Messages . ... One-Dimensional Radio Message to Blind Aliens . ... Project METI@home: Messages to ETI from Home . ... Limitations on Volume of Interstellar Radio Messages . Synthesis and Transmission of Cosmic Call 2003 Interstellar Radio Message . ... Transforming SETI to METI . ... Test SETI during Transmissions of Interstellar Radio Messages . Sending and Searching of Interstellar Messages . ... The First Musical Interstellar Radio Message . ... IRE RAS 1996-200 9 ...
... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... CSIRO ATNF Data Archives . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The IAU Working Group on Astronomical Data . ... The Working Group on Astronomical Data (WGAD) of the International Astronomical Union (IAU) is a working group concerned with issues around the access of astronomical data. ...
Here we compare the optical properties of porous particles of two kinds: . ... Below we show the behaviour of the efficiency factors Q ext (x), Q sca (x), Q abs (x), the asymmetry parameter g (x) and albedo (x) as well as for x = 3 and 100 the phase function i (theta) and polarization of scattered radiation p (theta) for different values of the parameters m and P . ... factors . ... Qext(x) . Qsca(x) . ... i (theta) . ... albedo (x) . ...
Hide Zen home . ... Index . ... Do we really need them for database indexing ? ... We need simple numbering scheme, so that for any given point we could easily calculate the number of "pixel", this is what HealPix provides and lacks HTM. ... During Rtree queries the number of index blocks read is several times greater than during Q3C queries. ... But in Q3C scheme, as we showed before, the circle is segmented, so we extract from the database only a few percents more data than occur in the circle. ...
... Этот раздел включает в себя оцифрованные копии книг, так или иначе принадлежащих к Астрономической тематике. ... Если у вас есть отсканированные книги входящие в тему этой библиотеки, обязательно напишите мне, возможно кто то давно ищет эту книгу, да и в целом пополнение библиотеки очень приветствуется. ... В.А.Бронштэн, Издательство "Наука" . ... Optomechanical Engineering Handbook Content . 1999, . Ed. Anees Ahmad, CRC Press LLC. ... Optomechanical Engineering Handbook-4, Metal Mirrors . ...
... A Queriable Repository for HST Telemetry Data, a Case Study in using Data Warehousing for Science and Engineering Joseph A. Pollizzi, III and Karen Lezon Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, Email: pollizzi@stsci.edu Abstract. ... In using a Star index, the designer starts by designing a few number of fact tables. ... Resulting Fact Tables Applying this strategy to the HST telemetry problem produced the following Fact Tables: . ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/reprints/pollizzij.ps.gz -- 80.8 Кб -- 12.06.2006 Похожие документы
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All the objects in the database, galaxies, stars, clusters, ..., are indexed with their pgc number. Historically, the pgc numbering was created to unify the names of the galaxies when the database project started in 1983. ... Still, all the objects in the database (about 5 millions) have a pgc number which is used as a unique identification across the different tables. This number should not be used to build a name , since it would not be recognized by any database, including HyperLeda. ...
... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...
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