Now showing items 1-10 of 179
Nonlinear second sound in solids
(American Physical Society, 1994-05-01)
We study the nonlinear propagation of thermal waves in rigid heat conductors using a model introduced by Ruggeri et al. We derive the lowest-order nonlinear corrections to the wave speed and show that the quadratic ...
A Novel-Approach To The Synthesis Of Nondispersive Wave Packet Solutions To The Klein-Gordon And Dirac Equations
(AIP Publishing, 1990-08-01)
A systematic approach to the derivation of exact nondispersive packet solutions to equationsmodeling relativistic massive particles is introduced. It is based on a novel bidirectional representation used to synthesize ...
Photoemission and low-energy-electron-diffraction study of clean and oxygen-dosed Cu2O (111) and (100) surfaces
(American Physical Society, 1991-01-01)
The geometric and electronic structure of clean and oxygen-dosed Cu2O single-crystal surfaces was studied with x-ray and ultraviolet photoelectron (UPS) spectroscopies and low-energy electron diffraction. The nonpolar (111) ...
Empirical many-body interatomic potential for bcc transition metals
(American Physical Society, 1991-03-01)
A simple many-body interatomic potential is proposed. This is an empirical extension of the embedded-atom method (EAM). The EAM models the lattice energy and elastic compressibility using a pair interaction plus a many-body ...
Embedded-atom interatomic potentials for hydrogen in metals and intermetallic alloys
(American Physical Society, 1996-10-01)
Interatomic potentials of the embedded-atom type have been developed for H in metals. The potentials are constructed through a fitting procedure involving the thermodynamic heat of solution of H in the various metals and ...
Measurement Of Dynamic Polarization Modulation Depth Utilizing The J(1)-J(4) Method Of Spectrum Analysis
(AIP Publishing, 1994-07-01)
A spectrum analysis method for the linear, direct, and self-consistent measurement of dynamic modulation depth of polarization modulators is presented. This method utilizes the Bessel recurrence relation to determine the ...
Investigation And Application Of The Frustrated-Total-Internal-Reflection Phenomenon in Optical Fibers
(Optical Society of America, 1997-12-01)
A detailed investigation of the frustrated-total-internal-reflection (FTIR) phenomenon in silica-glass-based optical fibers and its application to simple intensity-modulated strain and pressure sensors is presented. Such ...
Fabry-Perot Fiber-Optic Sensors in Full-Scale Fatigue Testing on an F-15 Aircraft
(Optical Society of America, 1992-02-01)
We report results from fiber-optic-sensor field tests on an F-15 aircraft mounted within a full-scale test frame for the purpose of fatigue testing. Strain sensitivities of the order of 0.01 _m/m have been obtained.
Novel Method For Determining The Curie-Temperature Of Ferroelectric-Films
(AIP Publishing, 1993-09-01)
A novel technique to measure the Curie temperature of ferroelectric thin films has been developed. The method is based on identifying changes in slope of film stress versus temperature plot. At the Curie temperature, ...
Properties of Ba(Mg1/3Ta2/3)O-3 thin films prepared by metalorganic solution deposition technique for microwave applications
(AIP Publishing, 1998-08-01)
We report on the properties of Ba(Mg1/3Ta2/3)O-3 thin films prepared by the metalorganic solution deposition technique. Bulk Ba(Mg1/3Ta2/3)O-3 ceramics have shown excellent dielectric properties at microwave frequencies; ...