The pinning effect is useful for restraining austenite grain growth in low alloy steel and improving heat affected zone toughness in welded joints. We propose a new calculation model for predicting austenite grain growth behavior. The model is mainly comprised of two theories: the solute-drag effect and the pinning effect of TiN precipitates. The calculation of the solute-drag effect is based o...

Measurement of ionized calcium is more important than measurement of total calcium in serum samples. In the present study, equations were derived from complexation and acid dissociation equilibrium equations, and were used to determine the concentration of ionized calcium from the observed serum concentrations of total calcium, albumin, total protein, and inorganic phosphate. The ionized calciu...

A method is described for measuring membrane potentials of gelatin-salt solutions, and it is pointed out that such measurements, together with the analysis of the solutions, allow the calculation of the concentration of ions combined with the protein. The values for the combined ions obtained in this way for ZnCl(2), KCl, LiCl, and HCl agree quite well with those obtained by direct concentratio...

PURPOSE The purpose of this study was to establish a practical method to estimate the absolute boron concentrations in the tissues based on the standardized uptake values (SUVs) after administration of 4-borono-phenylalanine (BPA) using 4-borono-2-18F-fluoro-phenylalanine (18F-FBPA) PET. METHODS Rat xenograft models of C6 glioma (n = 7, body weight 241 ± 28.0 g) were used for the study. PET w...

A simple method for the calculation of kinetic parameters (K(m), V(max)) under conditions of changing substrate concentrations is presented. An application of the method to detect shifts in groups involved in the utilization of a substrate in a mixed microbial culture is given.

in this study we investigate the effect of atoms such as b, n, ge and sn on the optical and the electrical properties of capped (5, 0) zigzag carbon nanotube, using dft calculation method. these elements were attached to the one end of the carbon nanotube. we considered four different structure designs as possible candidates for a p-n junction device. the electrical properties of these structur...

The aim of the present work is evaluation absolute constants in Arak inequalities for concentration functions convolutions probability distributions. This result allows us to calculate constant inequality uniform distance between n and (n + 1)-fold one-dimensional symmetric distributions with a characteristic function separated from −1, as well number other estimates, particular, accuracy appro...

BACKGROUND In spite of our extensive knowledge of the more than 20 proteins associated with different amyloid diseases, we do not know how amyloid toxicity occurs or how to block its action. Recent contradictory reports suggest that the fibrils and/or the oligomer precursors cause toxicity. An estimate of their temporal concentration may broaden understanding of the amyloid aggregation process....