4 232 résultats
1967731963PN. New. 1967. Soft Cover. Date is original print. This is a reprint edition. . PN paperback
0365887455.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
0353929042.Ghardcover. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. hardcover
2012Q-1616085339Skyhorse 2012-02-09. Paperback. New. In shrink wrap. Looks like an interesting title! Skyhorse paperback
1995275860PN. New. 1995. Soft Cover. Date is original print. This is a reprint edition . PN paperback
200579903Albuquerque NM: Sandia National Laboratories 2005. Presumed First Edition First printing thus. Wraps. Very good. 2 ii 32 4 pages. Footnotes. Illustrations color. Appendices A-E includes Glossary Visuals. Tables. ASC Timeline. Cover has minor wear and soiling. The Advanced Simulation and Computing Program ASC is a cornerstone of the Stockpile Stewardship Program providing simulation capabilities and computational resources to support the annual stockpile assessment and certification to study advanced nuclear-weapons design and manufacturing processes to analyze accident scenarios and weapons aging and to provide the tools to enable Stockpile Life Extension Programs SLEPs and the resolution of Significant Finding Investigations SFIs. This requires a balanced resource including technical staff hardware simulation software and computer science solutions. This Program Plan describes the ASC strategy and the deliverables required to accomplish the FY 2006-2010 multifaceted objectives defines program goals introduces the new national work breakdown structure and details the new subprograms their strategics and their associated performance indicators. The plan also includes ASC Level 1 Milestones and the top ten risks. To ensure synchronizations with the SSP's needs the Program Plan will be reviewed and updated annually. The Advanced Simulation and Computing Program or ASC is a super-computing program run by the National Nuclear Security Administration in order to simulate test and maintain the United States nuclear stockpile. The program was created in 1995 in order to support the Stockpile Stewardship Program or SSP. The goal of the initiative is to extend the lifetime of the current aging stockpile. After the United States' 1992 moratorium on live nuclear testing the Stockpile Stewardship Program was created in order to find a way to test and maintain the nuclear stockpile. In response the National Nuclear Security Administration began to simulate the nuclear warheads using supercomputers. As the stockpile ages the simulations have become more complex and the maintenance of the stockpile requires more computing power. Over the years due to Moore's Law the ASC program has created several different supercomputers with increasing power in order to compute the simulations and mathematics. Within the ASC program there are six subdivisions each having their own role in the extension of the life of the stockpile. Facility Operations and User Support: The Facility Operations and User Support subdivision is responsible for the physical computers and facilities and the computing network within ASC. They are responsible for making sure the tri-lab network computing storage space power usage and the customer computing resources are all in line. Computational Systems and Software Environment: The Computational and User Support subdivision is responsible for maintaining and creating the supercomputer software according to NNSA's standards. They also deal with the data networking and software tools. The ASCI Path Forward project substantially funded the initial development of the Lustre parallel file system from 2001 to 2004. Verification and Validation: The Verification and Validation subdivision is responsible for mathematically verifying the simulations and outcomes. They help software engineers write more precise codes in order to decrease the margin of error when the computations are run. Physics and Engineering Models: The Physics and Engineering Models subdivision is responsible for deciphering the mathematical and physical analysis of nuclear weapons. They integrate physics models into the codes in order to gain a more accurate simulation. They deal with the way that the nuclear weapon will act under certain conditions based on physics. They also study nuclear properties vibrations high explosives advanced hydrodynamics material strength and damage thermal and fluid response and radiation and electrical responses. Integrated Codes: The Integrated Codes subdivision is responsible for the mathematical codes that are produced by the supercomputers. They use these mathematical codes and present them in a way that is understandable to humans. These codes are then used by the National Nuclear Society Administration the Stockpile Steward Program Life Extension Program and Significant Finding Investigation in order to decide the next steps that need to be taken in order to secure and lengthen the life of the nuclear stockpile. Advanced Technology Development and Mitigation: The Advanced Technology Development and Mitigation subdivision is responsible for researching developments in high performance computing. Once information is found on the next generation of high performance computing they decide what software and hardware needs to be adapted in order to prepare for the next generation of computers. Sandia National Laboratories paperback
200190620Albuquerque NM: Sandia National Laboratories 2001. Presumed First Edition First printing. Wraps. Very good. 2 iii 162 pages plus covers. Illustrations many with color. Appendix A--Level 1 Milestones. Appendix 2--Glossary. From the Table of Contents these areas of discussion are found: The Role of ASCI in Stockpile Stewardship Defense Applications and Modeling Simulation and Computer Science Verification and Validation Physics Modeling Distance Computing Distributed Computing Weapons Simulation and Terascale Simulation. The Advanced Simulation and Computing Program ASC is a super-computing program run by the National Nuclear Security Administration in order to simulate test and maintain the United States nuclear stockpile. The program was created in 1995 in order to support the Stockpile Stewardship Program or SSP. The goal of the initiative is to extend the lifetime of the current aging stockpile. After the United States' 1992 moratorium on live nuclear testing the Stockpile Stewardship Program was created in order to find a way to test and maintain the nuclear stockpile. In response the National Nuclear Security Administration began to simulate the nuclear warheads using supercomputers. As the stockpile ages the simulations have become more complex and the maintenance of the stockpile requires more computing power. Over the years due to Moore's law the ASC program has created several different supercomputers with increasing power in order to compute the simulations and mathematics. Sandia National Laboratories paperback
1995I7126Beijing: White Lotus Press 1995. Paperback. Good/no dj. 1.00. Advanced Textbook on Traditional Chinese Medicine and Pharmacology Vol. 1 White Lotus Press paperback
1976753223PN. New. 1976. Soft Cover. Date is original print. This is a reprint edition. . PN paperback
2012DADAX1466617551Medical Information Science Reference 2012-06-30. 1. hardcover. New. 8.60x1.00x11.00. Buy with confidence. Excellent Customer Service & Return policy. Medical Information Science Reference hardcover
19912283Washington D. C.: U.S. Department of Transportation 1991. Tall Octavo yellow printed wrappers plastic binding comb vii 224 pp. illustrations and diagrams. A very good copy. This advisory circular is a summary of current available data regarding identification and treatment of corrosive attack on aircraft structure and engine materials. U.S. Department of Transportation unknown
2001SKU0628398Aviation Supplies & Academics Inc 2001-09-01. paperback. New. 8x0x10. New Textbook Ships with Tracking Aviation Supplies & Academics, Inc paperback
2001Q-156027140XAviation Supplies & Academics Inc 2001-09-01. Paperback. New. In shrink wrap. Looks like an interesting title! Aviation Supplies & Academics, Inc paperback
1607965089.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
2001DADAX156027140XAviation Supplies & Academics Inc 2001-09-01. Reprint. paperback. New. 8.50x0.95x10.50. Buy with confidence. Excellent Customer Service & Return policy. Aviation Supplies & Academics, Inc paperback
2012x-1638232547www.bnpublishing.net 2012. Hardcover. New. 436 pages. 8.50x0.94x11.00 inches. www.bnpublishing.net hardcover
1560276150.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
1560271922.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
161954024X.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
20192-168639456XIndependently published 2019. Paperback. New. 133 pages. 11.00x8.50x0.32 inches. Independently published paperback
1798771802.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
2012Q-1616085347Skyhorse 2012-02-09. Paperback. New. New. In shrink wrap. Looks like an interesting title! Skyhorse paperback
B9781490419268Paperback / softback. New. paperback
1798776979.Gpaperback. Good. Access codes and supplements are not guaranteed with used items. May be an ex-library book. paperback
199380330Washington DC: National Aeronautics and Space Administration 1993. Presumed First Edition First printing. Wraps. Good. 2 ii 111 1 pages. Map. 13 Appendices. Index. Includes Executive Summary; Space Launch Activities; Space Science; Space Flight and Space Technology; Space Communications; Aeronautical Activities; Studies of the Planet Earth; Other Aeronautical and Space Activities; and Glossary. The annual "President's Report" is a good summary of the Government's aerospace activities each year. Mandated by law it contains information on aerospace activities conducted by 14 Federal departments and agencies as well as appendices containing useful historical data on spacecraft launches and budget figures. The National Aeronautics and Space Act of 1958 directed that the annual Aeronautics and Space Report include a "comprehensive description of the programmed activities and the accomplishments of all agencies of the United States in the field of aeronautics and space activities during the preceding calendar year." This year's report has been prepared on a fiscal year basis which is consistent with the budgetary period now used in programs of the Federal Government. This report presents a fascinating snapshot of the U.S. space activities toward the end of the 20th Century. Fiscal Year FY 1992 was a significant one for U.S. aeronautics and space efforts. It included seven Space Shuttle missions and 14 Government launches of Expendable Launch Vehicles ELVs carrying a variety of payloads ranging from NASA missions to classified payloads. In addition there were eight launches of ELVs by commercial launch service providers operating under licenses issued by the Department of Transportation's Office of Commercial Space Transportation. On December 71991 the Air Force achieved initial launch capability for the new Atlas I1 launch vehicle in a commercial launch by General Dynamics with support from the Air Force. The other ELV missions launched four Navstar Global Positioning System two Defense Satellite Communications System and one Defense Meteorological Satellite Program satellites as well as two classified payloads and four NASA spacecraft. The Shuttle missions included one using the Atmospheric Laboratory for Applications and Science ATLAS-1 to study the Sun and our atmosphere as well as the first flight of the newest orbiter Endeavour which rendezvoused with retrieved and replaced the perigee kick motor of the INTELSATVI F-3 satellite that the International Telecommunications Satellite Organization INTELSAT controllers then deployed into its intended orbit. In aeronautics efforts have ranged from development of new civil and military aircraft and technologies to research and development of ways to reduce aircraft noise and improve flight safety and security. A key environmental effort in FY 1992 was monitoring ozone depletion. One of the major Earth science highlights of the year was finding that like the ozone layer over the Antarctic regions with its well documented annual depletion the ozone layer in the Northern Hemisphere is increasingly vulnerable to depletion by synthetic chemicals. Several Federal agencies have cooperated to study this and other environmental problems so we can improve the prospects for future generations who will inhabit the Earth. The budgets for aeronautics and space-distributed among 14 different Federal agencies have promoted important advances in the Nation's scientific and technical knowledge promising to enhance the quality of life on Earth through improved scientific understanding provide a more viable economy and healthier environment and ensure we live in a safer world. National Aeronautics and Space Administration paperback
