Further investigations of a variation of geomagnetic activity with lunar phase.
Geomagnetic activity variation with lunar phase, showing decrease several days before full Moon and increase several days after full Moon
GEOMAGNETIC FIELD↗
SEARCH · Engineering Papers
Results for “Variational”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
A variational method for multistage launch vehicle optimization
Variational calculus methods used to maximize payload capability for multistage launch vehicles
LAUNCH VEHICLE↗
On the variations of the thermospheric structure
Diurnal variation, atmospheric temperature and density, and solar fluxes in thermosphere
ATMOSPHERIC TEMPERATURE↗
Quasi Biennial Variation of Cosmic Rays
Quasi-biennial cosmic radiation intensity variation in tropical regions
COSMIC RADIATION↗
Applications of calculus of variations to trajectory analysis Annual report for 1965
Application of variational calculus to trajectory analysis of multistage vehicle
TRAJECTORY ANALYSIS↗
Solution of variational problems by means of a generalized Newton-Raphson operator
Generalized Newton-Raphson operator for solving variational problems
NEWTON-RAPHSON METHOD↗
Applications of calculus of variations to trajectory analysis Final report
Applying calculus of variations to multistage rocket trajectory analysis
VARIATIONAL CALCULUS↗
Applications of the calculus of variations to aircraft performance
Variational calculus used to describe optimum aircraft flight trajectories
TRAJECTORY↗
A review of some existing literature concerning discontinuous state variables in the calculus of variations
Literature review of discontinuous state variables in calculus of variations
DISCONTINUITY↗
A perturbation theory of the constrained variational method in molecular quantum mechanics
Perturbation theory of constrained variational method in molecular quantum mechanics
PERTURBATION THEORY↗
Some Remarks on the Use of the Variational Principle for the Second Order Energy
Approximate ground state wave function used in variational principle for second order energy
WAVE FUNCTION↗
A transformation technique to obtain control angle solutions in calculus of variations optimization problems
Transformation of Lagrange multipliers and Euler equations to obtain control angle solutions by variational calculus
COORDINATE TRANSFORMATION↗
Constrained Variation Method in Molecular Quantum Mechanics. Comparison of Different Approaches
Constrained variation method in molecular quantum mechanics and results for lithium hydride
VARIATION METHOD↗
Variational problems and their solution by the adjoint method
Variational problems and solutions by adjoint method
BOUNDARY VALUE PROBLEM↗
Some remarks on the use of the variational principle for the second-order energy.
Second order energy correction calculated by Hylleraas variation principle with approximate zero order function, shows no relationship to true value
WAVE FUNCTION↗
Time-dependent perturbation - Variation method. III.
Extension of minimum variational principle applied to time-dependent perturbational problems instead of original stationarity principle
TIME DEPENDENCY↗
A variational method for multistage launch vehicle optimization.
Calculus of variations method used to maximize payload capability for multistage launch vehicles
PAYLOAD MASS RATIO↗
Application of variational techniques to real- time command and control of an entry vehicle.
Real-time command and control of Gemini and other entry vehicles by variational techniques
REENTRY GUIDANCE↗