Mesoporous pellet adsorbent developed from mixing at an appropriate ratio of natural clay, iron oxide, iron powder, and rice bran was used to investigate the optimization process of batch adsorption parameters for treating aqueous solution coexisting with arsenate and arsenite. Central composite design under response surface methodology was applied for optimizing and observing both individual a...

In this article, the in situ adaptive tabulation (ISAT) procedure, originally developed [Pope, S. (1997). Computationally efficient implementation of combustion chemistry using in situ adaptive tabulation. Combustion Theory and Modeling, 1, 41–63] for the efficient computation of homogeneous reactions in chemically reacting flows, is adapted for the efficient computation of heterogeneous surfac...

We present an efficient numerical solution of a PDE-driven model for color image segmentation and give numerical examples of the results. The method combines the vector-valued Allen-Cahn phase field equation with initial data fitting terms with prescribed interface width and fidelity constants. Efficient numerical solution is achieved using a multigrid splitting of a finite element space, there...

In order to see the influence of different variable parameters (initial pH of the solution, Fe++ concentration and H2O2 concentration) and the efficiency to remove Malachite Green dye (Basic Green 4) from aqueous solution, Fenton Oxidation method was employed. Then different parameters were studied using known concentration (150 mg/l) and initial COD (256 mg/l) of prepared dye synthetic solutio...

ABSTRACT. POPMUSIC — Partial optimization metaheuristic under special intensification conditions — is a template for tackling large problem instances. This template has been shown to be very efficient for various combinatorial problems like p-median, sum of squares clustering, vehicle routing and map labeling. In terms of algorithmic complexity, one of the most complex part of POPMUSIC template...

here‎, ‎we aim to develop a new algorithm for solving a multiobjective linear programming problem‎. ‎the algorithm is to obtain a solution which approximately meets the decision maker's preferences‎. ‎it is proved that the proposed algorithm always converges to a weak efficient solution and at times converges to an efficient solution‎. ‎numerical examples and a simulation study are used to...

in this paper, a new approach for solving the second order fuzzy differential equations (fde) with fuzzy initial value, under strongly generalized h-differentiability is presented. solving first order fuzzy differential equations by extending 1-cut solution of the original problem and solving fuzzy integro-differential equations has been investigated by some authors (see for example cite{darabi...

and Applied Analysis 3 H2 for all t > 0 and i, j ∈ {1, 2, . . . , n}, there exist constants η > 0, λ > 0 and ξi > 0 such that ∫∞ 0 ∣ ∣Kij u ∣ ∣edu < ∞, −η > − [ ci t − λe−ληi t − ηi t ci t ( λ c i e λη i )] ei t ξi n ∑ j 1 L̃j (∣ ∣aij t ∣ ∣eij t a ijηi t ci t e ληi t e ij ) ξj n ∑ j 1 Lj ∫∞ 0 ∣ ∣Kij u ∣ ∣edu (∣ ∣bij t ∣ ∣ b ijηi t ci t e ληi t ) ξj ; 1.5 H3 Ii t O e−λt t → ±∞ , i 1, 2, . . . , n...