Artificial Intelligence
Optimum Spectral Indices for Water Bodies Recognition Based on Genetic Algorithm and Sentinel-2 Satellite Images

H. Karim Tabbahfar; F. Tabib Mahmoudi

Volume 12, Issue 1 , January 2024, , Pages 217-226

https://doi.org/10.22061/jecei.2023.10118.678

Abstract
  Background and Objectives: Considering the drought and global warming, it is very important to monitor changes in water bodies for surface water management and preserve water resources in the natural ecosystem. For this purpose, using the appropriate spectral indices has high capabilities to distinguish ...  Read More

Antenna Design
Mutual Coupling Reduction in MIMO Microstrip Antenna by Designing a Novel EBG with a Genetic Algorithm

R. Shirmohamadi; M. Bod; G. Dadashzadeh

Volume 11, Issue 2 , July 2023, , Pages 327-334

https://doi.org/10.22061/jecei.2023.9375.615

Abstract
  Background and Objectives: Multi-input multi-output (MIMO) antennas have been of interest in wireless communications in recent years. In these systems, many antennas are placed next to each other. The most important issue in the design of MIMO antennas is mutual coupling. Many methods have been proposed ...  Read More

Antenna Design
Design and Optimization of a Dual Polarized Hat Feed Reflector Antenna

M. Bod; F. Geran

Volume 10, Issue 2 , July 2022, , Pages 403-410

https://doi.org/10.22061/jecei.2022.8484.525

Abstract
  Background and Objectives: Self-supported rear-radiating feeds have been widely used as reflector antenna feeds for mini terrestrial and satellite links. While in most terrestrial and satellite links a dual-polarized antenna for send and receive applications are required, all of the reported works regarding ...  Read More

Data Mining
A Novel Hybrid Genetic Algorithm to Predict Students' Academic Performance

Y. Rohani; Z. Torabi; S. Kianian

Volume 8, Issue 2 , July 2020, , Pages 219-232

https://doi.org/10.22061/jecei.2020.7230.373

Abstract
  Background: Prediction of students' academic performance is essential for systems emphasizing students' greater success. The results can largely lead to increase in the quality of the educating and learning. Through the application of data mining, useful and innovative patterns can be extracted from ...  Read More

Artificial Intelligence
WOA-based Interval Type II Fuzzy Fractional-order Controller Design for a Two-Link Robot Arm

F. Jamshidi; M. Vaghefi

Volume 7, Issue 1 , January 2019, , Pages 69-82

https://doi.org/10.22061/jecei.2019.5783.256

Abstract
  Background and Objectives: A robot arm is a multi-input multi-output and non-linear system that has many industrial applications. Parameter uncertainties and external disturbances attenuate the performance of this system and a controller design is hence necessary to overcome them.Methods: In ...  Read More

Control
A PFC-based Hybrid Approach for Control of Industrial Heating Furnace

H. Nasiri Soloklo; N. Bigdeli

Volume 7, Issue 1 , January 2019, , Pages 83-94

https://doi.org/10.22061/jecei.2020.5744.253

Abstract
  Background and Objectives: In this paper, a predictive functional control based on Laguerre functions is designed for control of an industrial heating furnace. The fractional order model (FOM) of the heating furnace is assumed as the plant model.Methods: For designing the predictive functional controller ...  Read More