separation approaches affect organic contaminant levels. Thus, this fact sheet will focus primarily on heavy metal contaminants. Those metals of greatest concern in compost—cadmium, mercury, and lead—can be harmful to animals and humans at relatively low concentrations and tend to accumulate in soil, plants, and animals. For most of these potentially harmful metals, the levels in MSW composts a...

Anisotropic mechanical behavior of the Ti-6Al-4V alloy is essential for its forming and service. Generally, it preferable to minimize in-plane anisotropy sheet. The present work investigates by tensile tests along rolling direction (RD), transverse (TD), diagonal (DD) sheet, evaluating anisotropic yield flow behaviors exploring causes these properties. intrinsic deformation mechanism tensioned ...

This paper studied the deformation mechanisms of sheet metals stamped by rigid punches and deformable dies. Emphasis was placed on the development of elastic plastic zones in the sheet workpieces, on the functions of the die parameters and on their correlations with spring-back. It was found that the reduction of spring-back was due mainly to the interface interaction offered by the dies. The p...

The yield criterion, or so-called function, plays an important role in the study of plastic working a sheet because it governs deformation properties during plastic-forming process. In this paper, we propose novel anisotropic function useful for describing behavior various sheets. proposed includes version second stress invariant J2 and third J3. can explain sheets by introducing parameters α β...

We discuss some relations between autocorrelations (ACF) and partial autocorrelations (PACF) of weakly stationary processes. Firstly, we construct an extension of a process ARIMA(0, d, 0) for d ∈ (−∞, 0), which enjoys nonsummable partial autocorrelations and autocorrelations decaying as rapidly as ρn n−1+2d. Such a situation is impossible if the absolute sum of autocorrelations is sufficiently ...