Now showing items 281-290 of 344
TIME AVERAGE HOLOGRAPHY EXTENDED
(The American Institute of Physics, 1969-01-01)
It is demonstrated that the usefulness of time‐average holography in analyzing vibration can be extended by modulating the reference beam.
Characteristic infrared frequencies of rotational isomers of alkyl chlorides
(Elsevier, 1962)
A study of the infrared spectra of primary, secondary and tertiary alkyl chlorides reveals that the frequency of the so-called C-Cl stretching mode is a function of the detailed structure in the vicinity of the C-Cl bond. ...
Inversion-vibration and inversion-rotation interactions in the ammonia molecule
(Elsevier, 1962)
An attempt has been made to extend the theory of ammonia inversion in order to account for the dependence of the inversion splitting on the full set of vibrational and rotational quantum numbers. The potential energy of ...
Single Mode Output with the Spectra‐Physics Model 125 He☒Ne Laser
(The American Institute of Physics, 1969-10)
The Most General Clebsch‐Gordan Coefficients of the Universal Covering Group of the Inhomogeneous Lorentz Group
(The American Institute of Physics, 1966-06)
The most general Clebsch‐Gordan coefficients to reduce the physically most important n‐fold product representations of the groups P+↑ and P (Universal covering groups of the restricted and full inhomogemeous Lorentz groups) ...
Comparison of Molecular Structures Determined by Electron Diffraction and Spectroscopy. Ethane and Diborane
(The American Institute of Physics, 1968-11-15)
Gas‐phase average structures for the ground‐vibrational state (rz)(rz) for ethane and diborane have been determined by a critical comparison of the experimental results obtained from electron diffraction (average internuclear ...
Laminar Free‐Convection Heat Transfer from a Needle
(The American Institute of Physics, 1969-02)
The partial differential equations for laminar free convection over a needle are reduced to ordinary differential equations by a similarity analysis, and the values of local skin friction, heat transfer for various needles ...
Influence of defects on the infrared spectra of polymers Presented in part at the Symposium on Spectroscopy of Polymers, American Chemical Society, Chicago, September 1967.
(John Wiley & Sons, Inc., 1969-01)
For an infinitely repeated regular polymer chain structure the only vibrations which are optically active are those in which the phase of the motion is the same in each unit (the factor-group modes). Frequencies for which ...
Leading Edge of a Shock‐Induced Boundary Layer
(The American Institute of Physics, 1962-10)
The boundary layer which is formed as a shock wave propagates down a shock tube causes both shock attenuation and shock curvature. Hartunian studied the curvature effect; however, as he points out, because of the singularities ...
A model of CP violation
(Elsevier, 1969-12-08)
A model of the weak interactions mediated by a nonet or an octet of W-mesons is presented. The model contains the CP violating phase intrinsically.