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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Mach principle in scalar-tensor gravitation theory, discussing self energy calculations in canonical formalism for solitary neutral and charged point particles
Maximum principle in integral form for optimal control problems with delay differential system equations, using vector matrix notation
Variational principle for calculating velocity profile and electric potential distribution in magnetohydrodynamic channel flow
Adaptive random search algorithm for implementation of maximum principle
Finite element method for thin shells using specialized form of Reissner variational principle for stresses and displacements
Student development and exercising of electron physics principles by designing, assembling, operating and studying electron and ion devices
Apollo project hardware design and evaluation principles coupling simple design practice with stringent technical and administrative discipline
Maximum principle least squares /MPLS/ nonlinear filter scheme simplified, using digital simulation for stability and tracking performance
Vlasov equation approximate solution by minimum energy principle, deriving equilibrium equation for stellar gas
Physical principles of biological membranes - Conference, University of Miami, December 1968
MHD flow in channel of arbitrary cross section, deriving velocity and electric potential distribution by variational principle
Optimal control theory application to environmental control of confined spaces and life support systems, considering algorithm of Pontryagin principle
Variational principles for initial boundary value problem of fully coupled linear thermoelasticity for inhomogeneous anisotropic materials with microstructure
Motivation principles in industry based on Maslov theory of hierarchy of needs, discussing selection of supervisory personnel
Thermoelastic stability as function of thermodynamic properties of elastic materials, applying invariance principle to dynamical systems on Banach space
The physical principles of gravitation are discussed, such as gravitational and intertial forces, weight and mass, weightlessness, size and scale effects, scale limits of gravitational effects, and gravity as a biogenic factor. The behavior of the accelerative force gravitation, is described. This law proposes and quantifies the mutual gravitational attraction existing between all bodies of matter, the force being proportional to the product of masses, and inversely related to the square of the distance separating them. Gravity orientation, chronic acceleration, and hematology are examined. Systematic responses, such as circulation and renal functions, are also considered, along with animal response to a decreased acceleration field and physiology of hyper- and hypodynamic fields.
An understanding of the principles which govern variable speed drive operation is discussed for successful drive application. The fundamental factors of torque, speed ratio, and power as they relate to drive selection are discussed. The basic types of variable speed drives, their operating characteristics and their applications are also presented.
The protection mechanisms of computer systems control the access to objects, especially information objects. The principles of protection system design are formalized as a model (theory) of protection. Each process has a unique identification number which is attached by the system to each access attempted by the process. Details of system implementation are discussed, taking into account the storing of the access matrix, aspects of efficiency, and the selection of subjects and objects. Two systems which have protection features incorporating all the elements of the model are described.