Now showing items 11-20 of 67
On Green's functions, propagators, and sturmians for the nonrelativistic coulomb problem
(John Wiley & Sons, Inc., 1984-03-01)
Recent progress in the mathematical physics and quantum chemistry of Coulomb Green's functions is summarized. Analogy with the defining relation for the Green's function has led to a finite model for the Fermi contact ...
Cholesterol monohydrate dissolution rate studies in aqueous micellar solutions of polyoxyethylene nonylphenol ether and ionic surfactants
(Elsevier, 1984-10)
The influences of electrical and other factors on the dissolution kinetics of cholesterol monohydrate in micellar solutions were quantified in terms of mass transfer resistances due to interfacial processes and ...
Fractal to classical crossover of chemical reactions
(Elsevier, 1984-05-18)
Computer simulations on binary reactions of random walkers (A + A --> A) on two- and three-dimensional percolation clusters bear out the recent superuniversality conjecture (integrated reaction rate [alpha] t213). ...
Gravity-induced flocculation
(Elsevier, 1984-09)
In polydisperse colloidal systems, flocculation can occur as a result of the differential creaming rates between small and large particles. As an improvement on earlier work, we have rigorously modelled this process of ...
Preparation of 1-deuterioaldehydes via tub use of diisobutylaluminum deuteride (DIBAL-D)
(Elsevier, 1984)
Deuterioaldehydes, essential precursors In the preparation of chiral primary deuterioalcohols, have been prepared in yields ranging from 55-75% via reduction of methyl and ethyl esters at -78[deg]C with diisobutylaluminun ...
Hydroformylation as a simple and efficient one carbon homologation of homoallylic alcohols. Synthesis of prelog-djerassi lactone.
(Elsevier, 1984)
A hydroformylation oxidation sequence is described for the efficient conversion of homoallylic alcohols to [delta]-lactones. The methodology is applied to the synthesis of Prelog-Djerassi lactone.
Structural organization of the oxidizing side of photosystem II. Exogenous reductants reduce and destroy the Mn-complex in photosystems II membranes depleted of the 17 and 23 kDa polypeptides
(Elsevier, 1984-12-18)
Removal of 23 and 17 kDa water-soluble polypeptides from PS II membranes causes a marked decrease in oxygen-evolution activity, exposes the oxidizing side of PS II to exogenous reductants (Ghanotakis, D.F., Babcock, G.T. ...
Longitudinal acoustic mode in polymers. VII. Surface structure from swelling studies of freeze-dried polyethylene single crystals
(John Wiley & Sons, Inc., 1984-11)
Raman longitudinal acoustic mode (LAM) spectra have been obtained from freeze-dried polyethylene single-crystal samples swollen in decalin. The changes in Ν(LAM) have been studied as a function of molecular weight, temperature ...