Jia Xu

In light of the impending drawdown of forces and the pressure to reduce defense budgets, this report describes research to quantify the rescuability window of downed aircrews to assist the U.S. Air Force s reassessment of its personnel recovery force structure. The current research quantifies the relationship between rescuability and time so that the most cost-effective options for increasing the rescuability of downed personnel can be pursued."

This book reviews the basic process of China’s fourteen five-year plans with systematic theoretical overview and rich historical data and moves on to discuss the theoretical logic of plan-based state governance. The authors hold that the five-year planning system with Chinese characteristics is a flexible planning system; through adaptive macro-planning and incentive target governance, it mobilizes government, market and social forces to work together to fulfill national objectives and is a representative mechanism of the state governance system and a symbol of modernized state governance capacity. From an academic point of view, it theoretically answers questions about what, why and how concerning the five-year plans. From an interdisciplinary perspective, it explores the theoretical logic and experience of plan-based governance by combining Marxism, western theories, and the science of history. Also, it tries to represent historical facts based on a vast literature about the history of CPC and PRC, reviews historical details of the previous thirteen five-year plans, and describes the great journey of the plan preparation and implementation under the CPC leadership. This book has been published in Simplified Chinese (Peking University Press) and Traditional Chinese (Hong Kong Open Page Press). It has won the 2021 Annual Books of China Economics Education and Research Network, the first prize of excellent Works of the First Young Marxism Prize, 100 "Red Classic Reading" recommended reading books of Jiangsu National Reading Activity Leading Group celebrating the Centennial of the Founding of the Party, and Jintai Good Books of People's Daily Library.

This book reviews the basic process of China’s fourteen five-year plans with systematic theoretical overview and rich historical data and moves on to discuss the theoretical logic of plan-based state governance. The authors hold that the five-year planning system with Chinese characteristics is a flexible planning system; through adaptive macro-planning and incentive target governance, it mobilizes government, market and social forces to work together to fulfill national objectives and is a representative mechanism of the state governance system and a symbol of modernized state governance capacity. From an academic point of view, it theoretically answers questions about what, why and how concerning the five-year plans. From an interdisciplinary perspective, it explores the theoretical logic and experience of plan-based governance by combining Marxism, western theories, and the science of history. Also, it tries to represent historical facts based on a vast literature about the history of CPC and PRC, reviews historical details of the previous thirteen five-year plans, and describes the great journey of the plan preparation and implementation under the CPC leadership. This book has been published in Simplified Chinese (Peking University Press) and Traditional Chinese (Hong Kong Open Page Press). It has won the 2021 Annual Books of China Economics Education and Research Network, the first prize of excellent Works of the First Young Marxism Prize, 100 "Red Classic Reading" recommended reading books of Jiangsu National Reading Activity Leading Group celebrating the Centennial of the Founding of the Party, and Jintai Good Books of People's Daily Library.

U.S. air superiority is being challenged by competitors. The authors of this report demonstrate a prototype of a proof-of-concept artificial intelligence system to help develop and evaluate new concepts of operations for the air domain. The initial findings highlight both the potential of reinforcement learning to tackle complex, collaborative air mission planning problems, and some significant challenges facing this approach.

NASA's Aeronautics Research Mission Directorate is working to expand flight research in order to advance the maturation and demonstrate the application of new aeronautics concepts and technologies over the next ten years. It therefore asked RAND to assess flight research capabilities and needs, identify any gaps, and develop management options that would facilitate increased and improved flight research.

The development of the orbits theory lags behind the development of satellite technology. This book provides, for the first time in the history of human satellite development, the complete third order solution of the orbits under all possible disturbances. It describes the theory of satellite orbits, derives the complete solutions of the orbital disturbances, describes the algorithms of orbits determination based on the theory, describes the applications of the theory to the phenomenon of the satellite formation physically. The subjects include: Orbits Motion Equations, Disturbance theory, Solutions of the differential Equations, Algorithms of Orbits determinations, Applications of the theory to the satellite formation.

The development of the orbits theory lags behind the development of satellite technology. This book provides, for the first time in the history of human satellite development, the complete third order solution of the orbits under all possible disturbances. It describes the theory of satellite orbits, derives the complete solutions of the orbital disturbances, describes the algorithms of orbits determination based on the theory, describes the applications of the theory to the phenomenon of the satellite formation physically. The subjects include: Orbits Motion Equations, Disturbance theory, Solutions of the differential Equations, Algorithms of Orbits determinations, Applications of the theory to the satellite formation.