Applicability of perturbation theory to molecular problems.
Perturbation theory in molecular quantum physics using variational principles
PERTURBATION THEORY↗
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Results for “theory - methods”
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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The theory of stationary point processes.
Axiomatic formulation for stationary point processes interpreted as ordered sequences of points randomly located on real line, noting relation to set theory
SET THEORY↗
A theory for nonlinear transverse vibrations of a partially filled elastic tank.
Linear shell theory for nonlinear transverse coupled vibrations of partially filled circular cylindrical elastic tank
CIRCULAR CYLINDER↗
Perturbation theory for the analysis of instability in nonlinear feedback systems.
Instability and periodic solutions in nonlinear feedback systems obtained using perturbation theory of Hale and Cesari
PERTURBATION THEORY↗
On the factorization of secular equations by group theory.
Explicit invariant forms of factor equations for factorization of secular equations by group theory
QUANTUM MECHANICS↗
Quantum-mechanical kinetic theory of loaded spheres. II.
Quantum mechanical kinetic theory of gas loaded spheres to obtain limit of transport coefficients and relaxation time
KINETIC THEORY↗
A comment on hypersonic viscous interaction theory.
Hypersonic weak and strong interaction theory for case of uniform flow past flat plate, discussing boundary layer characteristics
FLAT PLATE↗
Quantum theory of an optical maser. I.
Quantum theory of laser having only single-mode oscillation and ignoring atomic motion and spatial variations in cavity mode
LASER↗
A two-dimensional discharge theory.
DC discharge parameters solution using pressure theory with generation terms stressing one- and two-dimensional cases
DIFFERENTIAL EQUATION↗
Radiation of Gravitational Waves in Brans- Dicke General-Relativity Theory
Gravitation wave radiation rate from binary stars, using Brans-Dicke general relativity theory
RELATIVITY THEORY↗
A theory for nonlinear transverse vibrations of a partially filled elastic tank.
Linear shell theory for nonlinear transverse coupled vibrations of partially filled circular cylindrical elastic tank
SHELL THEORY↗
A unified theory for spiral and radio galaxies.
Unified theory for galaxy spiral formation and radio galaxy and quasar evolutionary dynamics, discussing galactic dipole magnetic field generation
RADIO GALAXY↗
Field theory of depolarization of radar backscatter with application to a distant, slightly rough sphere.
Vector field theory of time dependent backscatter from distant slightly rough sphere for pulsed and sinusoidally steady state sources
RADAR SCATTERING↗
Electron transport theory, calculations, and experiments.
Electron transport theory for energy below 10 Mev, reviewing interactions, scattering, thick targets, complex geometry and penetration in space environment
SPACE RADIATION↗
Perturbation theory for exchange forces. I.
Perturbation theory for exchange forces using Brillouin and Schroedinger equations
SCHROEDINGER EQUATION↗
Comment on Theoretical Model of a Purported Empirical Violation of the Predections of Quantum Theory
We show that an alternative quantum theory proposed by Stapp directly violates Einstein casuality.
alternative quantum theory Stapp Einstein casualit↗
Multiple Field Scalar-Theories of Gravity and Cosmology
We consider multiple scalar fields coupled to gravity, with special attention given to two-field theories.
solar system tests cosmological evolution dust era↗
Structure Deformation Calculation Program Based on Displacement Theory for Shape Predictions
Separated programs were written in C/C++ to validate the Displacement Transfer Functions. The Structure Deformation Calculation Program was written to combine all of the programs to calculate deformed shapes of a structure using surface strain data and structural geometrical parameters. Users do not need to know the material properties, nor the complex internal structures geometry because the Displacement Theory is purely geometrical in nature. Users only need to know the structure types as defined in this report and information such as the structure length, depth factors, number of strain sensors, and the surface strains measured at the strain-sensing stations installed on the structures. Depending on the structure type, an applicable Displacement Transfer Function will be used. This program requires two input files created by users; the recorded strain data file in comma-separated values format and the structure geometry data file in text format. The program will output the out-of-plane deflections, slopes, cross-sectional twist angles, and depth factors if applicable. All output files are created in comma-separated values format. A section in this report describes step-by-step procedures on how to use the Structure Deformation Calculation Program for structure deformed shape calculations.
Displacement theory↗