A series of Schiff Bases of Ni(II) and Cu(II) using acetylacetone (acac), salicylaldehyde (sal), ethylenediamine (en), and o-phenylendiarnine (dabe) were prepared and characterized. The electronic spectra of some copper chelates in various organic solvents depend strongly on the solvent used and the d-d band of Cu(II) shifts to red with the increase of the Donor Number (DN) of solvent. The ...

This study introduces a green location, routing and inventory problem with customer satisfaction, backup distribution centers and risk of routes in the form of a non-linear mixed integer programming model. In this regard, time window is considered to increase the customer satisfaction of the model and transportation risks is taken into account for the reliability of the system. In addition, dif...

We consider two finite element discretizations of the Naghdi equations which model a thin three-dimensional shell. Both of them are derived from a mixed formulation of these equations, and a penalty term is added in the second one. The a posteriori analysis of the discrete problems leads to the construction of error indicators which satisfy optimal estimates. We describe a mesh adaptivity strat...

In this paper we study two multidimensional nonlinear dispersive systems: the Serre-Green-Naghdi (SGN) equations describing shallow water flows, and Iordanskii-Kogarko-Wijngaarden (IKW) fluids containing small compressible gas bubbles. These models are Euler-Lagrange for a given Lagrangian share common mathematical structure, namely dependence of pressure on material derivatives macroscopic var...

A new model and solution for the energy minimizing vehicle routing problem with time windows (EVRPTW) and customers’ priority is presented in this paper. In this paper unlike prior attempts to minimize cost by minimizing overall traveling distance, the model also incorporates energy minimizing which meets the latest requirements of green logistics. This paper includes the vehicles load as an ad...

Abstract Hydroelastic responses of floating elastic surfaces to incident nonlinear waves solitary and cnoidal type are studied. There N number the deformable surfaces, these represented by thin plates variable properties different sizes rigidity. The coupled motion fluid solved simultaneously within framework linear beam theory for structures Level I Green–Naghdi fluid. water surface elevation,...

This paper presented a new two-stage green supply chain network, in which includes two innovations. Firstly, it presents a new multi-objective model for a two-stage green supply chain problem that considers the amount o...