Solutions of interacting linear polymers are mapped onto a system of "soft" spherical particles interacting via an effective pair potential. This coarse-graining reduces the individual monomer-level description to a problem involving only the center of mass (c.m.) of the polymer coils. The effective pair potentials are derived by inverting the c.m. pair distribution function, generated in Monte...

Computer simulation techniques are employed to obtain binding energies of 2,3 and 4 vacancy clusters in a -iron using the Finnis Sinclair many body potential. The results are compared with earlier pair potential calculations. The many body potential is found to be quite successful in simulating vacancy clusters

We use a semi-classical method to calculate the potential energy of a heavy quark-antiquark pair. We also present numerical results for the average distribution of gluons which surround the quarkantiquark pair. (Submitted to Phys. Rev. D) * Work supported by the Department of Energy under contracts number DE-AC03-76SF00515 and EY-76-C-02-3069.

the present study investigates the gap between the daily milk production potential and the effective milk yields in six herds. these two parameters and their changes were observed in the gharb irrigation scheme (northwest of morocco), during a five months study period. they were analyzed in relation to the changes in the rations of the cows and in their live weights. results reveal that under c...

An analytical equation of state by Song and Mason is developed to calculate the PVT properties ofmercury. The equation of state is based on the statistical-mechanical perturbation theory of hard convexbodies and can be written as a fifth-order polynomial in the density. There exists three temperaturedependentparameters in the equation of state; the second virial coefficient, an effective molecu...

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Re-Pair is an efficient grammar compressor that operates by recursively replacing high-frequency character pairs with new grammar symbols. The most space-efficient linear-time algorithm computing Re-Pair uses (1 + )n+ √ n words on top of the re-writable text (of length n and stored in n words), for any constant > 0; in practice however, this solution uses complex sub-procedures preventing it fr...