John E. Krizan

Three‐Dimensional Second Virial Coefficient in Physical Adsorption

Expressions are obtained for the three‐dimensional second virial coefficient in physical adsorption for a system in which the adsorbed particles interact via Lennard‐Jones forces plus the three‐body force derived by Sinanoglu and Pitzer. Using these expressions one can investigate the relative importance of the three‐dimensional effect of the three‐body force. For the particular system of argon on carbon black it is found that the two‐dimensional approximation is very good.

Phase transitions for the Ising model on the closed Cayley tree

The closed Cayley tree with the Ising model which was defined by Jelitto for a branching ratio of two is here generalized to an arbitrary branching ratio. The occurrence of a discontinuity in the spin-spin correlation functions is demonstrated and the free energy is obtained. The topology of the network, with its interesting correlation results makes the model a candidate for further investigation.

Temperature and relativistic thermodynamics

Abstract The requirements of statistical mechanics and relativity, as articulated by Balescu, lead to direct transformations of thermodynamic quantities which are incompatible with observations of a microwave background and of the red shifts; however, angle-averaged effective forms do not violate invariance requirements of the theory.

Self-consistent band theoretic models of DNA

Previously investigated models are further elaborated here, with particular application to DNA. Accepting the premise that DNA may be characterized as an intrinsic semiconductor with a band gap energy of approximately 2 eV, a self-consistent method reveals term energies of reasonable magnitude. The treatment also determines that the mobilities are of the order of 10 to 102 cm2/V sec, indicating delocalization of the electrons with respect to the base pairs.