Now showing items 11-20 of 91
Coagulation equations with gelation
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1983-06)
Smoluchowski's equation for rapid coagulation is used to describe the kinetics of gelation, in which the coagulation kernel K ij models the bonding mechanism. For different classes of kernels we derive criteria for the ...
The geometrical hierarchy model and N = 1 supergravity
(Elsevier, 1983-06-02)
We incorporate the geometrical hierarchy model of Dimopoulos and Raby into N = 1 supergravity. Supersymmetry is spontaneously broken at a scale of order 1011 GeV and the cosmological constant is fine tuned to zero. A grand ...
Singlet exciton transport in substitutionally disordered naphthalene crystals: Percolation and generalized diffusion@fa@f)
(The American Institute of Physics, 1983-01-01)
Experimental data is presented for singlet exciton transport in a ternary naphthalene system (C10H8/C10D8/BMN). The trapping probability varies with guest concentration and with temperature. The data at 4.2 K are consistent ...
Electron diffraction studies of supersonic jets. I. Apparatus and methods
(The American Institute of Physics, 1983-01-01)
We describe the apparatus and methods used to obtain electron diffraction patterns of low‐temperature species produced from molecules seeded into supersonic expansions of helium or neon carrier gases. Although systems ...
Single pulse sampling valve measurements of wall layer hydrocarbons in a combustion bomb
(Elsevier, 1983)
The processes occurring during head-on flame quench at a cold combustion chamber wall have been studied in a cylindrical combustion bomb. Gas samples were withdrawn from the wall layer using an electrohydraulic sampling ...
Visualization of evaporative convection in minute drops by laser shadowgraphy
(The American Institute of Physics, 1983-01)
A very simple optical procedure is developed to investigate the morphology of natural convection and the dynamic behavior of drops evaporating on a plate by means of a laser shadowgraphic system. This method is the only ...
Reformulating classical and quantum mechanics in terms of a unified set of consistency conditions
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1983-09)
This paper imposes consistency conditions on the path of a particle and shows that they imply Hamilton's principle in classical contexts and Schrödinger's equation in quantum mechanical contexts. Thus this paper provides ...
Non-hydrodynamic contribution to the concentration dependence of the self diffusion of interacting brownian macroparticles
(Elsevier, 1983-01-15)
The generalized Langevin equation and the stationary requirement for an equilibrium system are used to calculate the modification of the self (tracer) diffusion coefficient by direct interactions. In the absence of ...
The Clausius-Mossotti formula and its nonlocal generalization for a dielectric suspension of spherical inclusions
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1983-11)
Employing a recently developed cluster expansion for the effective dielectric constant of a suspension of spherical inclusions, we show which parts of the cluster integrals give rise to the Clausius-Mossotti formula. The ...
The growth of swirl in curved circular pipes
(The American Institute of Physics, 1983-02)
Steady secondary currents in the entry region of curved circular pipes with different curvature ratios (R/a=4.66 and 16) have been delineated at moderate Dean numbers by pulsed‐probe anemometry. When swirl is quantified ...