the solubility of co2 in the primary, secondary, tertiary and sterically hindered amine aqueous solutions at various conditions was studied. in the present work, the modified kent-eisenberg (m-ke), the extended debye-hückel (e-dh) and the pitzer models were employed to study the solubility of co2 in amine aqueous solutions. two explicit equations are presented to evaluate the concentration of h...

In this paper we construct C continuous piecewise quadratic hierarchical bases on Powell–Sabin triangulations of arbitrary polygonal domains in R. Our bases are of Lagrange type instead of the usual Hermite type and we prove that they form strongly stable Riesz bases for the Sobolev spaces Hs(Ω) with s ∈ (1, 5 2 ). Especially the case s = 2 is of interest, because we can use the corresponding h...

We present well-balanced high-resolution finite volume schemes for simulating waves in the outer solar atmosphere. The schemes approximate the stratified MHD equations with an upwind discretization of the Godunov-Powell source term and a locally hydrostatic pressure reconstruction that preserves discrete steady states. The paper summarizes recent articles [4, 5, 6].

Introduction Recently, organisations as well as academics have increasingly become aware of the need for organisations to co-operate in knowledge networks with partnering organisations that can also be seen as competitors. It is not longer just co-operation that can improve a firm’s global competitiveness, but firms will actually meet their competitors in such cooperations. Organisations need t...

For nearly two decades, restorative justice responses to youth offending have been in place in all Australian states and territories. During this time, a vast amount of research on restorative justice processes and their impact on participants has amassed. Results consistently demonstrate that participants in restorative justice processes report positive experiences and regard their justice pro...

The equilibrium chemical reactions taken place in a converter reactor of the Khorasan Petrochemical Ammonia plant was studied using the minimization of Gibbs free energy method. In the minimization of the Gibbs free energy function the Davidon– Fletcher–Powell (DFP) optimization procedure using the penalty terms in the well-defined objective function was used. It should be noted that in the DFP...

We show how to construct a stable hierarchical basis for piecewise quadratic C continuous splines defined on Powell–Sabin triangulations. We prove that this hierarchical basis is well suited for compressing surfaces. Our compression method does not require the construction of wavelets which are usually expensive to compute, but instead we construct a stable quasi-interpolation scheme for our sp...

s International: Section A. Humanities and Social Sciences, 53(07), 2185A.Karcher, M. J., Davis, C., & Powell, B. (2002). The effects of develop-mental mentoring on connectedness and academic achievement. SchoolCommunity Journal, 12, 35–50.Karney, B. R., & Bradbury, T. N. (1995). The longitudinal course ofmarital quality and stability: A review of theory, methods, and resear...

The Powell–Sabin (PS) piecewise quadratic C finite element on the PS 12-split of a triangulation is a common choice for the construction of a BPX-type preconditioner for the biharmonic equation. In this note we investigate the related Powell–Sabin element on the PS 6-split instead of the PS 12-split for the construction of such preconditioners. For the PS 6-split element multilevel spaces can b...