Proficiency test results from 5 countries involving 61 separate interlaboratory proficiency tests for pesticide residues were examined in this study. A total of 24 different matrixes and 869 relative standard deviations of the mean (or median) pesticide residue concentration were statistically evaluated in relation to the Horwitz function. The aim was to determine whether or not the concentrati...

In this paper, we study fundamental aspects of electrostatics as a special case in Stueckelberg-Horwitz electromagnetic theory. In this theory, spacetime events xμ(τ) evolve in an unconstrained 8-dimensional phase space, interacting through five τ-dependent gauge fields induced by the current densities associated with their evolutions. The chronological time τ was introduced as an independent e...

The paleoclassical model for radial electron heat transport in tokamak plasmas has been developed in a number of papers over the past few years. In order to facilitate numerical evaluation of it in plasma transport codes, this report summarizes its parameters, formulas and limits in particular regimes. A hierarchy of levels of the paleoclassical model are specified for interpretive (1) and pred...

Various forms of the viscous force caused by collision-induced parallel viscous stresses within an inhomogeneous magnetized plasma are presented. New forms are proposed for initial value extended MHD codes to capture the “fast” (Braginskii) collisional viscous force effects on short time scales and multi-collisionality regime “residual” viscous forces on collision time scales and longer in axis...

We have computationally studied the properties of higher-order magnetic anisotropy constants in an $L{1}_{0}/A1\text{\ensuremath{-}}\mathrm{FePt}$ core-shell system which is characterized by a strong second-order two-ion Fe-Pt component. show that structure induces unexpected fourth-order constant ${K}_{2}$, magnitude varies nonmonotonically with core-size ratio $R$ reaching peak at $R\ensurema...

Neste trabalho, apresentamos a discussão original de Gibbs sobre equivalência entre as condições equilíbrio, dizer, condição máxima entropia para uma energia determinada e mínima par – quais são apresentadas como teoremas pelo autor. Na sequência, mostramos tal aparece em livros didáticos contemporâneos que Termodinâmica partir suas leis (lei zero mais três leis). Comparamos apresentação com fe...

L'équation de Horwitz est l'un des premiers paramètres empiriques à un usage en tant que valeur de référence pour les activités de laboratoires de contrôle qualité et des programmes d'essais d'aptitude. Ce document résume le concept de l'équation de Horwitz, des analyses de ses propriétés; propose d'utiliser l'équation dans des laboratoires qui se conforment à la norme ISO / CEI 17025, et consi...

Predictions are developed for the structure of plasma parameter profiles of H-mode pedestals in transport quasi-equilibrium in tokamak plasmas. They are based on assuming paleoclassical radial plasma transport processes dominate throughout the pedestal. The key physical process in this model is that the electron temperature gradient in the pedestal increases to the magnitude required for paleoc...