National Aeronautics and Administration James C. Howard
This book is intended for those students, engineers, scientists, and applied mathematicians who find it necessary to formulate models of diverse phenomena. To facilitate the formulation of such models, some aspects of the tensor calculus will be introduced. However, no knowledge of tensors is assumed. The chief aim of this calculus is the investigation of relations that remain valid in going from one coordinate system to another. The invariance of tensor quantities with respect to coordinate transformations can be used to advantage in formulating mathematical models. As a consequence of the...
This book is intended for those students, engineers, scientists, and applied mathematicians who find it necessary to formulate models of diverse pheno...
During the past four decades, the Lewis Research Center has been providing advances in aeronautical propulsion from the research activities of its staff and its university and industrial grantees and contractors. These advances have helped create the preeminence in aeronautics that has contributed to our national defense, has provided swift and reliable transportation for our people and their goods, and has greatly aided our position in international trade. In recent years substantial resources have also been directed at improving our nation's utilization of energy. NASA is well aware that...
During the past four decades, the Lewis Research Center has been providing advances in aeronautical propulsion from the research activities of its sta...
National Aeronautics and Administration Joseph H. Yuen
A vital, often predominant function in every space mission is that of communications. From the moment of launch, the only connection between spacecraft and earth is the communications system. This system is responsible for sending scientific data back to earth in the specified quality and quantity together with engineering data reporting the condition of the spacecraft. The communications system also provides the capability of tracking the spacecraft and commanding it to take certain actions. Without an effective communications system a successful mission would not be possible. To appreciate...
A vital, often predominant function in every space mission is that of communications. From the moment of launch, the only connection between spacecraf...
This document contains the proceedings of the Symposium on Computational Aspects of Heat Transfer in Structures held at the Langley Research Center, November 1981. The symposium was jointly sponsored by the NASA Langley Research Center, Washington University, and Old Dominion University. The main these of the symposium was progress in improving national capability to efficiently calculate the temperature and thermal stress in complex structures with an emphasis on reentry flight-vehicle structures. Speakers were drawn from NASA, various other government scientific organizations, universities,...
This document contains the proceedings of the Symposium on Computational Aspects of Heat Transfer in Structures held at the Langley Research Center, N...
In 1957, when Russia launched the first satellite, the ability of the United States to respond depended on one small launch vehicle still under development, Vanguard, and modifications to ballistic missiles. The subsequent space race featured a rapid buildup of launch vehicle capability in this country during the 1960s, culminating with the giant Saturn V which launched the Apollo lunar expeditions beginning in 1968. A significant part of the increased launch capability resulted from technical decisions made in 1958 and 1959 to use liquid hydrogen in the upper stages of the Centaur and Saturn...
In 1957, when Russia launched the first satellite, the ability of the United States to respond depended on one small launch vehicle still under develo...
