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2012rif. 500113911Studyrama 2012 143 pages 12 6x1 2x19cm. 2012. Broché. 143 pages.
Démons et Merveilles · Joinville, Francia4,00 €
4074 risultati
1981rif. 762322PN. New. 1981. Soft Cover. Date is original print. This is a reprint edition. . PN paperback
1974rif. 2080502106914071Tax Accounting Association 1974. Soft Cover. Fine. The book is in fine condition. Tax Accounting Association paperback
2001rif. 1332094PN. New. 2001. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1995Oxford Science Publications. Paperback in good condition. Creases on front cover. Page block is slightly marked. Contents are in excellent condition, with clean pages, and clear text. TH. Used
1999Hardcover. Boards are unmarked, pages are clean, and the text is clear. TH Used
1998Hardcover with printed boards, no dust jacket. Bump to spine head, no other faults. Clean throughout. AD Used
1997Hardcover. Boards are unmarked, pages are clean, and the text and illustrations are clear. TH Used
1992rif. 257025PN. New. 1992. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1984Paperback in good condition. Proceedings of a conference organized by the Mathematical Society of the GDR in Schwerin, Germany, 29th May to 4th June 1983. Covers and page block are marked. Leading corners, edges and spine are bumped, worn and creased, slightly affecting pages within. Pages are clean and contents are clear throughout. Binding is sound. HCW Used
1993rif. 266335PN. New. 1993. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1990rif. 233514PN. New. 1990. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1921204 p. Hardcover Good condition
1997rif. 296318PN. New. 1997. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1991rif. 242616PN. New. 1991. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1992rif. 257008PN. New. 1992. Soft Cover. Date is original print. This is a reprint edition . PN paperback
1957rif. RO20063738DURASSIE et Cie. 1957. In-12. Broché. Etat d'usage, Couv. légèrement passée, Dos satisfaisant, Intérieur bon état. Environ 10/12 pages.. . . . Classification Dewey : 657-Comptabilité
2012rif. 500113911Studyrama 2012 143 pages 12 6x1 2x19cm. 2012. Broché. 143 pages.
rif. 95067Paris, Masson 1987, 220x155mm, XIV - 200pages, broché. Bel exemplaire.
ISBN : 2703400888. DELMAS J. ET CIE. 1976. In-4 Carré. Broché. Bon état. Couv. convenable. Dos satisfaisant. Intérieur frais. Environ 100 pages . COLLECTION FRANCAISE / 3e EDITION.
2010rif. 040152Heinle 2010. Eighth Edition . CD-ROM. Like New. This new audio program correlates to the audio sections included in the Student Activities Manual.Complete 5 CD set in flexible notebook. Eighth Edition. Full refund if not satisfied. Heinle unknown
1960Hardcover without dust jacket. Faint marks to front board and to page block. Contents clean and unmarked. AD Used
1981Hardcover (no jacket) in good condition. Statistics: Textbooks and monographs, volume 37. Light marks and edgewear to the boards and spine. Stamps on the endpapers and lightly marked page block. Pages are clean; all content is clear. CM Used
1980rif. 760682PN. New. 1980. Soft Cover. Date is original print. This is a reprint edition. . PN paperback
1999rif. 91332Washington DC: United States General Accounting Office 1999. Presumed First Edition First Printing. Wraps. Very good. 28 pages. Footnotes. This is a "Report to the Chairman Subcommittee on Defense Committee on Appropriations House of Representatives". Satellite control systems are used to ensure that satellites reach their planned orbits and perform their intended missions while in orbit. There are two types of satellite control operations-platform control and payload control. Platform controls involves monitoring the health and status and managing the operations of a satellite's physical structure sometimes called the bus. Payload controls involves monitoring the health and status and managing the operations of a satellite's mission equipment. Specific satellite control functions consist of 1 locating satellites and receiving and processing data from them 2 following satellites' motion over time and 3 transmitting signals to satellites. These three functions are called telemetry tracking and commanding and are performed by a network of ground command and control centers ground antennas and communication capabilities between the centers antennas and satellites. There are two types of satellite control networks-common and dedicated. DOD operates two common networks that provide primary or backup control for communications environmental monitoring navigation and intelligence satellites. Examples include the Defense Satellite Communications System Defense Meteorological Satellite Program and Global Positioning System. DOD also operates several dedicated networks that control missile warning communications and intelligence missions. DOD has made minimal progress in integrating and improving its satellite control capabilities in accordance with 1996 national space policy. In 1992 DOD identified a need for an integrated satellite control system to achieve standardization and interoperability across military services and individual satellite programs. In 1995 the Air Force which controls most of DOD's satellites characterized its satellite control capabilities as aging inefficient and costly to operate. The Air Force initiated an effort to standardize these capabilities and achieve full implementation in 2003-a first step toward an integrated and interoperable DOD capability. Air Force officials chose to proceed with a conceptual design over operational alternatives. However in 1997 the Air Force terminated this effort because of schedule delays resulting from software development problems and the additional amount of software that needed to be written. Air Force Space Command representatives are now recommending that the use of the Air Force's existing satellite control capabilities be extended to 2005 to provide time to acquire an improved capability. Until then the Air Force will be unable to reduce approximately $400 million it spends annually to operate maintain sustain and modernize satellite control capabilities. The Navy's satellite control capabilities are not as old inefficient or costly to operate as the Air Force's capabilities. Although the Navy upgraded its capabilities in the early 1990s another upgrade is planned because the company that provided the existing capabilities no longer provides software support services. DOD has taken limited action to foster integrated and interoperable satellite control for all government space activities since it was directed to do so by the 1996 national space policy. Prior studies recommended that a high-level interagency management group be established to oversee implementation of integrated systems across agency lines. Although DOD established a senior steering group in 1998 to address national security space management and integration issues government space agencies continue to plan for satellite control capabilities on an independent basis rather than coordinate and integrate their efforts on an interagency basis. Considering the long-standing need to replace the Air Force's aging and costly satellite control capabilities and the Navy's more recent plan to upgrade its capabilities DOD has an opportunity to revitalize its effort to achieve integrated satellite control by acquiring a standardized capability. A resumed search for such a capability is appropriate because it would also provide an opportunity to review Air Force satellite control decisions for future space-based infrared and communication satellite programs that are currently in development. Commercial off-the-shelf products that could perform core functions for controlling satellites are available and several studies have advocated the use of such products. In making a selection among alternatives DOD could reduce acquisition risk by employing best commercial practices-a key element of DOD's acquisition reform initiatives. Commercial firms place a premium on demonstrated performance before making critical decisions rather than on predicted performance as was the case with the Air Force's 1995 selection. We are recommending that the Secretary of Defense take actions to revitalize efforts to 1 integrate and improve DOD's satellite control capabilities using commercial products and practices and 2 foster integration and interoperability of satellite control among government space activities. United States General Accounting Office paperback
2002rif. 1339658PN. New. 2002. Soft Cover. Date is original print. This is a reprint edition . PN paperback
