Dioxin-like polychlorinated biphenyls (DL-PCBs) are a class of persistent toxic substances with high potential to accumulate in the soil as an organic pollutant and bioaccumulate humans. The study determined level human health risk twelve (12) DL-PCBs soils from mechanic workshops within Nekede village (NMV), Imo State. In this study, samples (0–15 cm depth) were collected at four different sam...

This paper deals with the estimation of the distance between the solution of a static linear mechanic problem and its approximation by the finite element method solved with a non-overlapping domain decomposition method (FETI or BDD). We propose a new strict upper bound of the error which separates the contribution of the iterative solver and the contribution of the discretization. Numerical ass...

Introduction: Organization structure and manpower constitute two basiccomponents of anorganization and both are necessary for stablishing anorganization. The aim of this survey was to investigate the type of theorganization structure (mechanic and organic) from viewpoint of senior andjunior managers in Shiraz teaching hospitals and creativity in each of these two structures.Methods: In this cro...

this paper presents a class of theoretical and iterative method for linear partial differential equations. an algorithm and analytical solution with a initial condition is obtained using the reduced differential transform method. in this technique, the solution is calculated in the form of a series with easily computable components. there test modeling problems from mathematical mechanic, physi...

In the field of the Solar system and planetary dynamics, extensive computational experiments became useful and well established, standard research tools. These experiments regard direct numerical integrations of complex equations of motion to study the long-term orbital evolution and stability of various N-body systems (e.g., [10]), an analysis of the resonance structure of the phase space of t...