Now showing items 51-60 of 62
Short‐distance monomer correlations in a self‐repelling polymer chain
(The American Institute of Physics, 1982-03-15)
We calculate the amplitude of the large‐wave vector scattering structure function S(q) of a long random coil in a good solvent, using field theory renormalization and expanding to first order in ϵ≡4‐ (dimension of space). ...
Vibrational analysis of peptides, polypeptides and proteins. XII—fermi resonance analysis of the unperturbed ND stretching fundamental in polypeptides
(John Wiley & Sons, Ltd., 1982-04)
We have obtained the spectrum of β‐poly(L‐alanine‐ND), and find three bands in the ND stretching region. By comparison with Fermi resonance analyses of deuterated derivatives of polyglycine I as well as with α‐poly(L‐alanine‐ND), ...
Conical vortices: A class of exact solutions of the Navier–Stokes equations
(The American Institute of Physics, 1982-12)
A two‐parameter family of exact axially symmetric solutions of the Navier–Stokes equations for vortices contained within conical boundaries is found. The solutions depend upon the same similarity variable, equivalent to ...
Gas-liquid mass transfer in rotating perforated-disc contactors
(Elsevier, 1982)
This paper presents a numerical model for predicting the performance of liquid-gas mass transfer in a rotating perforated-disc type contactor. The device consists of a cylindrical section situated between two 45-degree ...
Upon the utility of spherical harmonic expansions in the evaluation of cluster integrals
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1982-08)
A novel procedure for the analytic evaluation of cluster integrals is given. By means of a result of Silverstone and Moats which transforms the spherical harmonic expansion of a function around a given point into a new ...
Time-orthogonal unitary dilations and noncommutative Feynman-Kac formulae
(Springer-Verlag, 1982-02)
An analysis of Feynman-Kac formulae reveals that, typically, the unperturbed semigroup is expressed as the expectation of a random unitary evolution and the perturbed semigroup is the expectation of a perturbation of this ...
The second order concentration corrections to the mutual diffusion coefficient of Brownian macroparticles
(The American Institute of Physics, 1982-09-01)
From the initial time dependence of the dynamic structure factor S(k,t), we obtain a general form, valid through second order in the concentration, for the mutual diffusion coefficient Dm. All effects of direct and ...
The weak mixing angle and unification mass in supersymmetric SU(5)
(Elsevier, 1982-03-15)
We consider the predictions for the weak mixing angle [theta]W and the scale M of unification in a supersymmetric extension of SU(5), with particular emphasis on the sensitivity to the number of Higgs multiplets. In the ...
Motion of ions in the Kingdon trap
(The American Institute of Physics, 1982-06)
The classical and quantum motion of ions in a Kingdon trap (Orbitron) is studied for nearly circular orbits. The frequencies of small axial and radial oscillations are derived for both the logarithmic potential and the ...
Multiple cavity experiments to detect parity nonconservation in atomic hydrogen
(Elsevier, 1982-06-15)
We develop general guidelines and criteria for designing and evaluating beam experiments which use Ramsey's method of separated oscillating fields to detect PNC (parity nonconserving) effects in atomic hydrogen. We find ...