Author Affiliations: Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Md (Salmon, Pan, Omer, Halsey); Division of Public Health, Wisconsin Department of Health and Family Services, Madison, Wis (Sotir, Berg, Hopfensperger, Davis); Institute for Vaccine Safety, Johns Hopkins Bloomberg School of Public Health, Baltimore, Md (Omer, Halsey); National C...

Let (Ω, μ) be a set of real numbers to which we associate a measure μ. Let α ≥ 0, let Ωα = {x ∈ Ω/α(x) = α}, where α is the concentration index defined by Halsey et al. [Halsey et al., 1986]. Let fH(α) be the Hausdorff dimension of Ωα. Let fL(α) be the Legendre spectrum of Ω, as defined in [Riedi and Mandelbrot, 1998]; and fC(α) the classical computational spectrum of Ω, defined in [Halsey et a...

Water pollution caused by the lead(II) from the spent liquor has caught much attention. The research from the theoretical model to application fundaments is of vital importance. In this study, lead(II) adsorption isotherms are investigated using a series of hybrid membranes containing mercapto groups (-SH groups) as the hybrid adsorbents. To determine the best fitting equation, the experimental...

The moisture sorption isotherms of Chilean papaya were determined at 5, 20, and 45 oC, over a relative humidity range of 10-95%. The GAB, BET, Oswin, Halsey, Henderson, Smith, Caurie and Iglesias-Chirife models were applied to the sorption experimental data. The goodness of fit of the mathematical models was statistically evaluated by means of the determination coefficient, mean relative percen...

varieties of st. john’s wort (hypericum perforatum l.) native to iran possess the largest percentage of hypercin in their leaves and flowers. isotherm curves show the relationship between the relative humidity and moisture content of the plant at a constant temperature. it is essential to understand the isotherms curves for successful storage and drying of the plant. this study used adsorption ...

We present a critique of the Halsey isotherm model (also known as Frenkel–Halsey–Hill), which is used by many researchers to interpret water contaminant adsorption data. first convert original for gas-phase form appropriate liquid-phase adsorption. call this version “genuine isotherm.” then show that currently in research bears only partial resemblance genuine isotherm. As such, we label former...