TAILIEUCHUNG - nuclear weapons dod and nnsa need to better manage scope of future

Tham khảo sách 'nuclear weapons dod and nnsa need to better manage scope of future', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | GAO May 2011 United States Government Accountability Office_ Report to Congressional Requesters NUCLEAR WEAPONS DOD and NNSA Need to Better Manage Scope of Future Refurbishments and Risks to Maintaining . Commitments to NATO GAO-11-387 Accountability Integrity Reliability May 2011 GA o Irt a nty mh bíwỹ Highlights Hghlghu C4 OAOl 1 -387. A report to coẽợrcsscnal requestors Why GAO Did This Study . nuclear wra K ik are aging with key components reaching the enđ of their service life. In September 2008. the Department of Defense DOD and the National Nuclear Security Administration NNSA began a study of military requirements and design options for extending the B61 bombs service life. The B61 is used to support the strategic deterrent and the North Atlantic Treaty Organization NATO . GAO was asked to assess the extent to which DOD and NNSA have 1 considered die time available to begin producing refurbished bombs when determining die .scope of the study and 2 taken actions to avoid operational gaps in . nuclear weapons commitments to NATO during the life extension program. To evaluate these objectives GAO analyzed DOD ami NN S A policies guidance ami reports on We extension programs and interviewed officials responsible for B61 operations life extension program planning. management. and oversight. This is the unclassified version of a classified report issued in December 2010. What GAO Recommends GAO is making recommendations that addresK the need to scope future requirements and design studies to reflect the time available to complete the program and prepare risk management plans to address operational concerns caused by potential life extension program delays. DOD and NNSA agreed with the recommendations. View GAO-11 -387 or k y component for more nVormatkon contact John Pendeton At 202 S12-343Ỗ X pflcctetortjOgao gov Of Gone Ataoo at 202J 12 3641 or 0ic4M0Oga0 NUCLEAR WEAPONS DOD and NNSA Need to Better Manage Scope of Future Refurbishments and .

• Cơ khí - Chế tạo máy
• The subject of rock mechanics
• Content of this book
• Geological setting
• Natural rock environments
• Stress as a point property