Amirkabir University of Technology

Optimizing gas injection strategies: a comparative equation of state-based study of asphaltene precipitation and onset pressures

Abstract Asphaltene deposition poses a significant challenge in gas injection processes for Enhanced Oil Recovery (EOR), as it can severely impede fluid flow and diminish reservoir productivity. This study investigates the impact of injected gas composition, specifically Carbon D...

Ligament-dependent joint gap behavior reveals limitations of gap-based tissue balancing in total knee arthroplasty

Soft tissue balancing is a key determinant of stability in total knee arthroplasty (TKA), yet the biomechanical interpretation of intraoperative gap assessment remains unclear. This study developed a subject-specific finite element model of a TKA knee to evaluate how collateral l...

Optimizing decentralized wastewater allocation to urban green spaces in the water scarce megacity of Tehran

Abstract Water scarcity is among the most pressing global challenges, and conventional systems increasingly fail to secure reliable urban water supplies. Reusing municipal wastewater for irrigation offers a sustainable, low-cost option for sustaining urban green spaces, the large...

Explainable AI–enhanced pavement deterioration modeling using hybrid classification–regression deep learning architecture

Abstract Effective Pavement Management System (PMS) planning depends on the ability to anticipate both the severity and physical extent of multiple distress types under real-world data constraints. This work introduces an interpretable dual-stage Deep Learning (DL) framework that...

Adaptive third-order super-twisting sliding mode control based on field-oriented control for three-phase induction motors satisfying power quality constraints

Robust control of the induction motor across a wide range of torque-speed operating points remains a challenge, particularly when the variable frequency drive (VFD) must satisfy stringent power quality constraints for motor insulation longevity. Therefore, this paper proposes an...

Analysis and optimization of process parameters affecting core-spun ring yarn properties using a soft computing-based approach

This study presents a soft computing-based framework for the analysis, modeling, and optimization of cotton/polyester core-spun yarn properties produced on a ring spinning system. The effects of pre-tension, core multi-filament linear density, twist level, and spindle speed on ya...

Large deformation mechanics of loop pile structure under compression loading modelled as buckled elastic rod

Loop pile fabrics play a central role in technical textiles where compression resistance governs performance, yet no closed-form model has been available to predict their large deformation behavior. This study introduces an analytical framework based on Euler’s elastica theory, t...

Application of gamma and electron-beam irradiations for aflatoxin B1 decontamination in peanut: effects on physicochemical properties and food safety

Infected peanuts were subjected to various radiation doses (0–10 kGy) to evaluate their effects on microbial populations, physicochemical parameters (including phytosterols, fatty acid composition, volatile compounds, total soluble protein, and malondialdehyde levels), and aflato...

A novel method for analysis of oxidant (OX = O3 + NO2) and its local and regional contributions using satellite remote sensing data

Oxidant (OX) is a key metric in air quality, representing the sum of ozone (O₃) and nitrogen dioxide (NO₂). This combined measure accounts for their rapid interconversion in photochemical cycles through photostationary state relationships and is crucial for shaping air pollution...

Development of chitosan–sulfonated polystyrene–sulfonated nanosilica nanocomposite proton exchange membranes for direct methanol fuel cells

Abstract In this study, proton exchange membranes (PEMs) based on chitosan (CS), sulfonated polystyrene (SPS), and pristine or modified nanosilica were fabricated for direct methanol fuel cell (DMFC) applications. Membranes containing different SPS contents were prepared, and pol...