in the present work, a modified correlation is presented for the second virial coefficients of both polar and nonpolar fluids based on the corresponding states principle. the second virial coefficients of gaseous polar and non-polar compounds were calculated and compared with experimental data and with other correlations. comparisons with the existing correlations show that the present work is ...

In the present work, a modified correlation is presented for the second virial coefficients of both polar and nonpolar fluids based on the corresponding states principle. The second virial coefficients of gaseous polar and non-polar compounds were calculated and compared with experimental data and with other correlations. Comparisons with the existing correlations show that the present work is ...

We report on a comparative study of the low temperature emission and polarisation properties of InGaN/GaN quantum wells grown on nonpolar ([Formula: see text]) a-plane and ([Formula: see text]) m-plane free-standing bulk GaN substrates where the In content varied from 0.14 to 0.28 in the m-plane series and 0.08 to 0.21 for the a-plane series. The low temperature photoluminescence spectra from b...

Most proteins and large polypeptides have hydrophobic regions at their surface. These hydrophobic "patches" are due to the presence of the side chains of hydrophobic or nonpolar amino acids such as phenylalanine, tryptophan, alanine, and methionine. These surface hydrophobic regions are interspersed between more hydrophilic or polar regions and the number, size, and distribution of them is a sp...

Most proteins are typically folded into predetermined three-dimensional structures in the aqueous cellular environment. However, proteins can be exposed to a nonpolar environment under certain conditions, such as inside the central cavity of chaperones and unfoldases during protein degradation. It remains unclear how folded proteins behave when moved from an aqueous solvent to a nonpolar one. H...

By using a versatile high-pressure liquid chromatography method (total elution time approximately 135 min) developed in the present study, we detected the formation of some 20 nonpolar radioactive metabolite peaks (designated as M1 through M20), in addition to a large number of polar hydroxylated or keto metabolites, following incubations of [(3)H]17beta-estradiol with human liver microsomes or...

The effects of the ratio of particle diameter to lattice spacing, z, on critical parameters for both polar and nonpolar fluids have been examined in detail. Nonpolar systems studied have short range Buckingham exponential-6 interactions, while polar systems have long range Coulombic forces treated with Ewald summation. Monte Carlo simulations in the grand canonical ensemble combined with histog...

Please direct correpsondence to Joseph Pesek at [email protected]. Separation and retention of both polar and nonpolar compounds by the same stationary phase can be a useful approach for analyses of complex samples with a broad range of chemical properties. Typical stationary phases are designed for retention of either polar or nonpolar compounds so that multiple steps are required when designing ...

Submitted for the MAR10 Meeting of The American Physical Society Polarization-induced charge carrier separation in GaN quantum dots on polar and nonpolar surfaces OLIVER MARQUARDT, TILMANN HICKEL, JOERG NEUGEBAUER, Max-Planck-Institut fuer Eisenforschung — Wurtzite III-nitride quantum dots (QDs) show a strongly reduced light emission efficiency when grown in the polar direction, due to strong b...