In collaboration with Payame Noor University and the Iranian Society of Instrumentation and Control Engineers
Control and Optimization
A Sub-Ordinary Approach to Achieve Near-Exact Solutions for a Class of Optimal Control Problems

Akbar Hashemi Borzabadi; Mohammad Gholami Baladezaei; Morteza Ghachpazan

Volume 9, Issue 2 , December 2024, , Pages 1-19

https://doi.org/10.30473/coam.2024.70834.1254

Abstract
  This paper explores the advantages of Sub-ODE strategy in deriving near-exact‎ ‎solutions for a class of linear and nonlinear optimal control‎ ‎problems (OCPs) that can be transformed into nonlinear‎ ‎partial differential equations (PDEs). Recognizing that converting an OCP into ...  Read More

Control and Optimization
A Multi-Objective Model for Humanitarian Logistics Model During an Earthquake Crisis‎: ‎A Case Study of Iran

Maryam Yaghoubi; Fatemeh Dadmand

Volume 9, Issue 2 , December 2024, , Pages 21-41

https://doi.org/10.30473/coam.2024.68031.1238

Abstract
  Natural disasters‎, ‎such as earthquakes‎, ‎result in significant financial and human losses‎. ‎Rescue operations play a crucial role in managing such crises‎. ‎However‎, ‎the lack of precise information and the damage or destruction of urban transportation routes ...  Read More

Control and Optimization
New Soliton Solutions to the Coupled Conformable Time-Fractional Boussinesq Equation

Ahmad Sharif

Volume 9, Issue 2 , December 2024, , Pages 43-51

https://doi.org/10.30473/coam.2024.71509.1256

Abstract
  In this study‎, ‎we explore soliton solutions for the conformable time-fractional Boussinesq equation utilizing the three-wave method‎. ‎To validate the precision of our findings‎, ‎we discuss specific special cases by adjusting certain potential parameters and also present the ...  Read More

Control and Optimization
On Constraint Qualifications and Optimality Conditions in‎ ‎Nonsmooth Semi-infinite Optimization

Atefeh Hassani Bafrani

Volume 9, Issue 2 , December 2024, , Pages 53-66

https://doi.org/10.30473/coam.2024.69322.1247

Abstract
  The primary objective of this paper is to enhance several well-known geometric constraint qualifications and necessary optimality conditions for nonsmooth semi-infinite optimization problems (SIPs). We focus on defining novel algebraic Mangasarian-Fromovitz type constraint qualifications, and on presenting ...  Read More

Control and Optimization
Impact of Carrier Relaxation Time on the Performance of Quantum Dot Laser with Planar Cavities ‎Using ‎Artificial ‎Neural ‎Networks

Seyed Mohsen Izadyar; Mohammad Eshaghnezhad; Hossein Davoodi Yeganeh

Volume 9, Issue 2 , December 2024, , Pages 67-83

https://doi.org/10.30473/coam.2024.70032.1250

Abstract
  This study presents a model of ‎a quantum dot laser with a planar cavity, employing numerical methods and artificial neural networks for simulation purposes. The investigation focuses on the influence of critical parameters, including the injection current into the active layer of the quantum dot ...  Read More

Control and Optimization
Mordukhovich Normal Cone of Optimization Problems with Switching Constraints

Sharifeh Rezagholi; Arash Farhadi Hikooee‎

Volume 9, Issue 2 , December 2024, , Pages 85-96

https://doi.org/10.30473/coam.2024.70234.1251

Abstract
  This paper examines normal cones of the feasible set for mathematical programming problems with switching constraints (MPSC)‎. ‎Functions involved are assumed to be continuously differentiable‎. ‎The primary focus is on providing the upper estimate of the Mordukhovich normal cone for ...  Read More

Control and Optimization
A New Approach to Control of Legged Robots

Majid Anjidani

Volume 9, Issue 2 , December 2024, , Pages 97-121

https://doi.org/10.30473/coam.2024.71425.1255

Abstract
  Designing dynamically stable controllers for a robot with 2r legs is challenging due to its complex hybrid dynamics (r>1). This paper proposes a technique to decompose the robot into r biped robots, where the influence of other robot parts on each biped can be modeled as external forces. This approach ...  Read More

Control and Optimization
Optimal Adaptive Sliding Mode Control for a Class of Nonlinear Affine Systems

Masoomeh Ebrahimipour; Saeed Nezhadhosein‎; Seyed Mehdi Mirhosseini-Alizamini

Volume 9, Issue 2 , December 2024, , Pages 123-138

https://doi.org/10.30473/coam.2023.67868.1236

Abstract
  This paper presents an optimal robust adaptive technique for controlling a certain class of uncertain nonlinear affine systems‎. ‎The proposed approach combines sliding mode control‎, ‎a linear quadratic regulator for optimality, and gradient descent as an adaptive controller‎. ‎ ...  Read More

Control and Optimization
Optimizing Banking Network Resilience to Exchange Rate Shocks

Hadi Adib; Akbar Mirzapour Babajan; Beitollah Akbari Moghaddam; Roozbeh Balounejad Nouri

Volume 9, Issue 2 , December 2024, , Pages 139-158

https://doi.org/10.30473/coam.2024.72329.1262

Abstract
  This paper explores the resilience optimization of Iran's banking sector in the face of exchange rate shocks---critical macroeconomic disturbances with extensive consequences‎. ‎We develop a multi-sector macro-dynamic stochastic general equilibrium model encompassing essential economic components‎, ...  Read More

Control and Optimization
Abadie Type Constraint Qualifications and Optimality Conditions for Nonsmooth Multi-Objective Semi-Infinite Problems

Ahmad Rezaee

Volume 9, Issue 2 , December 2024, , Pages 173-186

https://doi.org/10.30473/coam.2024.72301.1261

Abstract
  This paper introduces several Abadie-type constraint qualifications and derives necessary optimality conditions in the Karush-Kuhn-Tucker‎ ‎for both weakly efficient solutions and efficient solutions of a nonsmooth multi-objective semi-infinite programming problem characterized by locally Lipschitz ...  Read More

Control and Optimization
An Adaptive Time-Stepping Algorithm to Solve a Stochastic Lotka-Volterra Competition System with Time-Variable Delays

Ali Valinejad; Afshin Babaei; Zahra Zarei

Volume 9, Issue 2 , December 2024, , Pages 187-199

https://doi.org/10.30473/coam.2024.67940.1237

Abstract
  ‎This paper introduces ‎a variable step size strategy for a stochastic time-delays Lotka-Volterra competition system‎. ‎This adaptive strategy utilizes the Milstein method for numerical solutions. It employs two local error estimates, corresponding to the diffusion and drift components ...  Read More

Control and Optimization
A Fuzzy Sliding Mode Control for Nonlinear Leader-Follower Multi-Agent Systems

Negar Izadi; Mohammad Taghi Dastjerdi

Volume 9, Issue 1 , May 2024, , Pages 1-34

https://doi.org/10.30473/coam.2023.64817.1209

Abstract
  In this paper‎, ‎we present a new approach for achieving leader-follower consensus in a network of nonlinear dynamic agents with an undirected graph topology‎, ‎using a fuzzy sliding mode controller (FSMC) for Multi-Agent Systems (MASs)‎. ‎Our proposed sliding mode controller ...  Read More

Control and Optimization
Dynamical Behaviour of Fractional Order ‎‎SEIR‎ ‎Mathematical Model for Infectious Disease Transmission

Reza Akbari; Leader Navaei; Mohammad Shahriari

Volume 9, Issue 1 , May 2024, , Pages 35-48

https://doi.org/10.30473/coam.2023.64849.1210

Abstract
  This paper presents an extension of the SEIR mathematical model for infectious disease‎ ‎transmission to a fractional-order model‎. ‎The model is formulated using the Caputo derivative of order α ∈ (0, 1]‎. ‎We study the stability of equilibrium points‎, ‎including ...  Read More

Control and Optimization
Efficient Solution of Nonlinear Unconstraint Optimization Problems using Quasi-Newton's Method‎: ‎A Revised Approach

Hajar Alimorad

Volume 9, Issue 1 , May 2024, , Pages 49-65

https://doi.org/10.30473/coam.2023.64138.1204

Abstract
  While many real-world optimization problems typically involve multiple constraints, unconstrained problems hold practical and fundamental significance. They can arise directly in specific applications or as transformed versions of constrained optimization problems.‎ ‎Newton's method‎, ...  Read More

Control and Optimization
Hesitant Fuzzy Equation

Fatemeh Babakordi; Nemat Allah ‎Taghi-Nezhad

Volume 9, Issue 1 , May 2024, , Pages 67-79

https://doi.org/10.30473/coam.2023.68208.1240

Abstract
  This paper presents the introduction of two novel equation types: the partial hesitant fuzzy equation and the half hesitant fuzzy equation‎. Additionally, ‎ an efficient method is proposed to solve these equations by defining four solution categories: Controllable‎, ‎Tolerable Solution ...  Read More

Control and Optimization
Big Data Analytics and Data Mining Optimization Techniques for Air Traffic Management

Abbas Ali Rezaee; Hadis Ahmadian Yazdi; Mahdi Yousefzadeh Aghdam; Sahar Ghareii

Volume 9, Issue 1 , May 2024, , Pages 81-96

https://doi.org/10.30473/coam.2023.66151.1222

Abstract
  With the advancements in science and technology‎, ‎the industrial and aviation sectors have witnessed a significant increase in data‎. ‎A vast amount of data is generated and utilized continuously‎. ‎It is imperative to employ data mining techniques to extract and uncover knowledge ...  Read More

Control and Optimization
Optimizing Supply Chain Design for Sustainability and Reliability‎: ‎A Comparative Study of Augmented Epsilon‎‎‎ and Normalized Normal Constraint Methods

Sajad Amirian; Maghsoud Amiri; Mohammad Taghi Taghavifard

Volume 9, Issue 1 , May 2024, , Pages 97-130

https://doi.org/10.30473/coam.2023.67540.1230

Abstract
  Integrating sustainability and reliability represents a synergistic approach that can be explored through the problem of a closed-loop supply chain network design (SCND)‎. ‎This study is conducted in three stages‎: ‎mathematical modeling‎, ‎model solution using exact methods‎, ...  Read More

Control and Optimization
An Efficient Variable Neighborhood Search for Solving Multi-Criteria Project Portfolio Selection

Ali Akbar Sohrabi; Reza Ghanbari; Khatere Ghorbani-Moghadam

Volume 9, Issue 1 , May 2024, , Pages 131-147

https://doi.org/10.30473/coam.2023.65380.1213

Abstract
  Project portfolio selection is a critical challenge for many organizations as they often face budget constraints that limit their ability to support all available projects‎. ‎To address this issue‎, ‎organizations seek to select a feasible subset of projects that maximizes utility‎. ...  Read More

Control and Optimization
Solving Fractional Optimal Control-Affine Problems via Fractional-Order Hybrid Jacobi Functions

Zeinab Barary; AllahBakhsh Yazdani Cherati; Somayeh Nemati

Volume 9, Issue 1 , May 2024, , Pages 149-168

https://doi.org/10.30473/coam.2023.68826.1243

Abstract
  This paper proposes and analyzes an applicable approach for numerically computing the solution of fractional optimal control-affine problems. The fractional derivative in the problem is considered in the sense of Caputo. The approach is based on a fractional-order hybrid of block-pulse functions and ...  Read More

Control and Optimization
Solving Linear Fractional Programming Problems in Uncertain Environments‎: ‎A Novel Approach with Grey Parameters

Farid Pourofoghi; Davood Darvishi Salokolaei

Volume 9, Issue 1 , May 2024, , Pages 169-183

https://doi.org/10.30473/coam.2023.67881.1235

Abstract
  Fractional programming is a significant nonlinear planning tool within operation research‎. ‎It finds applications in diverse domains such as resource allocation‎, ‎transportation‎, ‎production programming‎, ‎performance evaluation‎, ‎and finance‎. ‎In ...  Read More

Control and Optimization
A Hybrid Floyd-Warshall and Graph Coloring Algorithm for Finding the Smallest Number of Colors Needed for a Distance Coloring of Graphs

Hanifa Mosawi; Mostafa Tavakolli; Khatere Ghorbani-Moghadam

Volume 9, Issue 1 , May 2024, , Pages 185-194

https://doi.org/10.30473/coam.2023.68880.1244

Abstract
  Graph coloring is a crucial area of research in graph theory, with numerous algorithms proposed for various types of graph coloring, particularly graph p-distance coloring‎. In this study, we employ a recently introduced graph coloring algorithm to develop a hybrid algorithm approximating the chromatic ...  Read More

Control and Optimization
Mathematical Modeling and Optimal Control of Carbon Dioxide Emissions

Fahimeh Akhavan Ghassabzade; Mina Bagherpoorfard

Volume 9, Issue 1 , May 2024, , Pages 195-202

https://doi.org/10.30473/coam.2023.67777.1233

Abstract
  ‎This paper aims to demonstrate the flexibility of mathematical models in analyzing carbon dioxide emissions and account for memory effects. ‎The use of real data amplifies the importance of this study‎. ‎This research focuses on developing a mathematical model utilizing fractional-order ...  Read More

Control and Optimization
Optimality Conditions for Properly Efficient Solutions of Nonsmooth Multiobjective GSIP

Ali Asghar Hojatifard; Nader Kanzi; ‎Shahriar Farahmand Rad

Volume 9, Issue 1 , May 2024, , Pages 203-219

https://doi.org/10.30473/coam.2023.67823.1234

Abstract
  This paper aims to establish first-order necessary optimality conditions for non-smooth multi-objective generalized semi-infinite programming problems‎. ‎These problems involve inequality constraints whose index set depends on the decision vector‎, ‎and all emerging functions are assumed ...  Read More

Control and Optimization
Robust switching law design for uncertain time-delay switched linear systems

Mohamad Reza Ramezani-al; Samira Sabeti

Volume 4, Issue 2 , January 2019, , Pages 1-19

https://doi.org/10.30473/coam.2020.54034.1143

Abstract
  Guaranteed cost control (GCC) is an impressive method of controlling nonlinear systems‎, ‎incredibly uncertain switched systems‎. ‎Most of the recent studies of GCC on uncertain switched linear systems have been concerned with asymptotic stability analysis‎. ‎In this paper‎, ...  Read More

Control and Optimization
Enlarging the Region of Attraction for Nonlinear Systems through the Sum-of-Squares Programming

Jahangir Alizadeh; Hamid Khaloozadeh

Volume 4, Issue 2 , January 2019, , Pages 19-37

https://doi.org/10.30473/coam.2020.53510.1141

Abstract
  In the present study‎, ‎a novel methodology is developed to enlarge the Region of Attraction (ROA) at the point of equilibrium of an input-affine nonlinear control system‎. ‎Enlarging the ROA for non-polynomial dynamical systems is developed by designing a nonlinear state feedback controller ...  Read More