A5024085924- Facility Location and Emergency Management
- Optimization and Mathematical Programming
- Fractional Differential Equations Solutions
- Multi-Criteria Decision Making
- Vehicle Routing Optimization Methods
- Efficiency Analysis Using DEA
- Optimization and Variational Analysis
- Advanced Optimization Algorithms Research
- Iterative Methods for Nonlinear Equations
- Nanofluid Flow and Heat Transfer
- Differential Equations and Numerical Methods
- Matrix Theory and Algorithms
- Network Security and Intrusion Detection
- Numerical methods for differential equations
- Irrigation Practices and Water Management
- Protein Degradation and Inhibitors
- Big Data and Business Intelligence
- Misinformation and Its Impacts
- COVID-19 Pandemic Impacts
- Optimization and Search Problems
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Soil Mechanics
- Electromagnetic Scattering and Analysis
- Data Quality and Management
- Dam Engineering and Safety
University of Guilan
2011-2022
Baqiyatallah University of Medical Sciences
2020
University of Shahrood
2012
Laplace transform and new homotopy perturbation methods are adopted to study gas dynamic equation analytically. The solutions introduced in this can be used obtain the closed form of if they required. combined method needs less work comparison with other decreases volume calculations considerably. Results show that is more effective convenient use, high accuracy evident.
The slacks-based measure (SBM) and additive SBM (ASBM) models are two widely used DEA acting based on inputs outputs slacks giving efficiency scores between zero unity. In this paper, we use both with the application of weak disposability axiom for to evaluate in a two-stage structure presence undesirable outputs. external evaluation, model is reformulated as linear program ASBM second-order cone (SOCP) that convex programming problem. internal specific choice weights linearized while...
The two-stage data envelopment analysis models are among the widely used mathematical programming approaches to evaluate performance of structures. In this paper, a structure with shared inputs and feedback is studied. To reduce undesirable outputs, an additive slack-based measure model proposed stages overall efficiencies, while outputs weakly disposable. As it does not require determining weights for combining stages’ all Pareto optimal efficiencies can be gained. addition, approach...
In this paper, we propose a new technique for solving the nonlinear Fokker–Planck equation. This algorithm is based on Laplace transform and homotopy perturbation methods. The applied to two mathematical models of problem. We show that present approach relatively easy, efficient highly accurate.
In this paper we study the problem of locating multiple facilities in convex sets with fuzzy parameters. This asks to find location new given such that sum weighted distances between and existing is minimized. We present a linear programming model for block norms, then use it problems data. also do rectilinear infinity norms as special cases norms.
Laplace transform and new homotopy perturbation methods are adopted to study Fisher‐type equations analytically. The solutions introduced in this can be used obtain the closed form of if they required. combined method needs less work comparison with other decreases volume calculations considerably. is tested on various examples, results show that more effective convenient use, high accuracy it evident.
In this article, Laplace transform and new homotopy perturbation methods are adopted to study the problem of forced convection over a horizontal flat plate analytically.The is system nonlinear ordinary differential equations which arises in boundary layer flow.The solutions approximated by proposed method shown be precise as compared corresponding results obtained numerical method.A high accuracy evident.
The capacitated plant location problem with customer and supplier matching can be modeled as a mixed integer linear program, where the product distribution from plants to customers material supply suppliers are considered together. In order save allocation cost, trip is merged into one triangular trip. Moreover, vehicles visit for each this paper, we assume interval uncertainties in demands of costumers. We show that robust counterpart original model uncertainty equivalent larger program....
In this paper, we consider a special case of Weber location problem which call goal problem. The asks to find point in the plane such that sum weighted distances between and n existing points is minimized. each Pi has relevant radius ri it’s ideal for us locate new facility on distance from i = 1, ..., n. Since most instances there does not exist its be exactly equal ri. So try minimize square errors. We are measured by Euclidean norm. propose Weiszfeld like algorithm solving also use two...
In this paper, a new efficient recurrence relation is constructed to solve nonlinear Brusselator equation. The system, known as the reaction-diffusion Brusselator, arises in modeling of certain diffusion processes. Laplace transform method and homotopy perturbation (NHPM) are used these equations. Since mathematical numerous scientific engineering experiment lead equation, it worthwhile try methods system. Comparison results with those method, Adomian decomposition dual-reciprocity boundary...
In this paper, we incorporate an efficiency criterion using data envelopment analysis into the single-source and multi-source capacitated facility location problems. We develop two bi-objective integer programs to find optimal efficient patterns, simultaneously. The proposed models for these problems have fewer variables constraints compared existing presented in literature. use LP-metric procedure solve on numerical examples. Results show that new give better solutions, based cost criteria.