Hanoi University of Science and Technology

CFD-DEM modeling and experimental validation of fluidized bed drying using Reaction Engineering Approach

Fluidized bed drying is an effective technique for drying particulate materials and is widely applied in post-harvest processing of agricultural products as well as in industrial applications. This study develops a numerical drying model based on a coupled Computational Fluid Dyn...

Secure Runtime Reconfiguration Framework for FPGA-Based Embedded Systems in Mission-Critical Applications

Field-Programmable Gate Arrays (FPGAs) have become a popular platform to implement high performance and flexible mission-critical embedded systems with capabilities of configuration at run-time. Nevertheless, although dynamic partial reconfiguration (DPR) is the way to achieve fl...

From Green Skills to Sustainable Business Development: The Role of Vocational Education, Green Business Strategy and Environmental Innovation

ABSTRACT Sustainable business development (SBD) has been the global requirement due to uncertainty of economic and environmental conditions around the globe. Thus, the present article investigates the green business strategies and environmental innovation role of the green dynami...

Dataset of exact and Monte Carlo sampled square-lattice self-avoiding polygons

This dataset contains exact and Monte Carlo sampled square-lattice self-avoiding polygons (SAPs) for reproducible computational studies. It includes 536 exact free canonical classes at even perimeters P=4–16 and 12,152 Monte Carlo samples at P=64,128,256,512,1024, and 2048. Each...

A systematic survey of Nash equilibrium variants and their solution methods and applications in multi-agent problems

The literature on multi-agent systems lacks a unified framework connecting problem structure to the choice of equilibrium concept and solution method. This survey synthesizes work on Nash equilibrium and its variants, namely standard NE, Mixed/Approximate NE, Generalized Nash Equ...

Compound task-class noise in task-agnostic inference for multi-task binary classification: an intuitionistic fuzzy approach

Abstract Multi-task learning often trains one shared representation across tasks, where each example is annotated with both a task identity and a class label whose meaning depends on that task. In real annotation pipelines, however, wrong task assignment can make the attached cla...

Robust frequency-region control of overhead cranes with time-varying rope length

Overhead cranes with time-varying rope length are subject to nonlinear dynamics and practical implementation issues, including actuator input delays, controller gain perturbations, and external disturbances. Furthermore, the variation of rope length continuously shifts the natura...

Attention-enhanced vision transformer hashing for hybrid image retrieval

Large-scale image retrieval requires compact representations without substantially sacrificing retrieval accuracy. However, Vision Transformer Hashing (VTS) concatenates all output tokens before hash projection, resulting in a high-dimensional hashing head with considerable model...

Permeability effect on heat transfer and flow dynamics past two tandem 45°-inclined square cylinders

In this study, two-dimensional transitional flow and convective heat transfer past two tandem porous square cylinders inclined at 45° are numerically investigated using the lattice Boltzmann method (LBM) at a Reynolds number ( R e ) of 150 and a Prandtl number ( P r ) of 0.71 acr...

Magneto-inductive waveguiding using a step-defect line in a reconfigurable digital metasurface for wireless power transmission

Abstract In this paper, we present a reconfigurable digital two-dimensional metasurface consisting of an 8 × 8 matrix of specialized unit cells that can dynamically switch between two resonance modes at 11 MHz and 13.56 MHz. By carefully designing defect-based metamaterial caviti...

Parametric Multiscale Homogenization and Coupled Thermo-Structural Analysis of Hybrid Al–SiC–Gr Brake Discs via Sequential Micromechanical Modeling

This study presents a hierarchical multiscale homogenization framework to evaluate the thermo-mechanical performance of hybrid aluminum matrix composites (HAMCs) reinforced with Silicon Carbide (SiC) particles and Graphite (Gr) for lightweight automotive brake discs. A sequential...

Synergistic effect of α-Fe2O3/CuO heterojunction nanocomposite for enhanced electrochemical simultaneous detection of dopamine and ascorbic acid

Abstract Electrochemical sensing of ascorbic acid (AA) and dopamine (DA) has attracted considerable attention owing to their important roles in biological systems; therefore, precise determination of these analytes is essential for biological and clinical analysis. In this work,...

Scaling Regenerative Supply Chains in Agriculture: An Integrated Framework of Digital MRV, Transition Finance and Socioecological Resilience

ABSTRACT Regenerative agricultural supply chains (RSCs) generate substantial ecological value through improved soil health, biodiversity and climate resilience, yet this value remains largely excluded from financial valuation. This structural disconnect, termed the bankability ga...

Discrepancies Between Self-Reported and Peer-Attributed Frequencies of AI-Assisted Academic Cheating Among Undergraduate Students

Generative artificial intelligence (GenAI) has intensified concerns about academic integrity, yet little is known about discrepancies between students’ self-reported frequencies in AI-assisted academic cheating and the frequencies they attribute to their peers. Using an anonymous...

A new genus and species of hagfish from Vietnam: A transitional lineage between Rubicundinae and Myxininae (Craniata: Myxiniformes)

Abstract Dolichostomus leucotaenia gen. et sp. nov. is described from two specimens collected from off northern Vietnam. It is characterized by a long, oval mouth opening visible from the ventral view, a feature unique among the order Myxiniformes. It also possesses a single medi...

Rational Designof Pyrrole-Based Ionizable Lipidsfor mRNA Delivery

Abstract Ionizable lipids are key components of lipid nanoparticles for mRNA delivery. Inspired by the DLin-KC2-DMA ionizable lipid, we developed a series of pyrrole-based ionizable lipids to evaluate the feasibility of incorporating a rigid heterocyclic scaffold into ionizable l...