The asymmetric unit of the title compound, (C(12)H(12)N(2))(3)[V(10)O(28)]·2H(2)O, contains one half of a deca-vanadate anion, one and a half trans-1,2-bis-(4-pyridinio)ethene cations and one water mol-ecule. The V(10)O(28) groups are involved in a three-dimensional hydrogen-bonding network through Ow-H⋯O, N-H⋯O and C-H⋯O inter-actions.

by means of he's homotopy perturbation method (hpm) an approximate solution of velocity eld is derived for the ow in straight pipes of non-newtonian uid obeying the sisko model. the nonlinear equations governing the ow in pipe are for- mulated and analyzed, using homotopy perturbation method due to he. furthermore, the obtained solutions for velocity eld is graphically sketched and compared w...

Stems, skins, seeds, and pulp are grape pomace (GP) components formed as by-products during wine production. The GP share represents about 25% of the total amount processed grapes, which is a significant organic waste (OW) that can be treated in composting process. purpose paper to consider possibility their use by presenting basic characteristics potentials other available fractions OW agricul...

The dramatic sea ice loss makes trans-Arctic navigation possible. However, navigability assessments at high temporal resolution are still very limited. To bridge this gap, daily concentration and thickness from CMIP6 projections applied to evaluate the future potential of Arctic shipping under multiple climate scenarios. September navigable area will continue increase through 2050s for open-wat...

Article history: Received 7 April 2011 Received in revised form 17 September 2011 Accepted 18 September 2011 Is wind direction an adequate marker of air mass history? This review looks at the evolution of methods for assessing the effect of the origin and pathway of air masses on composition change and trends. The composition of air masses and how they evolve and the changing contribution of so...

Task-modality has been found to constrain the production of LREs in adults and children. However, there are no studies with young learners that have offered a comprehensive analysis LREs. To this end, paper will examine effect task-modality on features targeted them, as well their level engagement/elaboration during primary-school learners’ performance task containing both an oral written compo...

The application of natural attenuation as a site remediation strategy depends essentially on the reliable prediction of the migration of the contaminant plume. We present a 1D simulation tool that is capable of handling a variety of complex scenarios predicted to be of interest in site remediation problems. The implementation of the diierent components is organized in a modular structure that f...

Transport of sorbing solutes in 2D steady and heterogeneous ̄ow ®elds is modeled using a particle tracking random walk technique. The solute is injected as an instantaneous pulse over a ®nite area. Cases of linear and Freundlich sorption isotherms are considered. Local pore velocity and mechanical dispersion are used to describe the solute transport mechanisms at the local scale. This paper add...

The performance of 10 deterministic one-dimensional dynamic pesticide leaching models with different complexity was evaluated using data collected on a humic sandy soil with a shallow ground water table in the Netherlands. Both mechanistic models, based on the solution of the governing ̄ow equations (the Richards equation for soil water and the convection dispersion equation for solute ̄ow) and...