Viet–Thanh Pham
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View article: Cultivating Financial Well-Being in Medicine: A Comparative Analysis of Financial Knowledge Between First-Generation and Non-First-Generation Medical Trainees
Cultivating Financial Well-Being in Medicine: A Comparative Analysis of Financial Knowledge Between First-Generation and Non-First-Generation Medical Trainees Open
Background Medical trainees often face high financial burden and limited financial literacy, which contributes to stress and burnout, especially among first-generation students and international medical graduates (IMGs). This study assesse…
View article: Dynamics of a Neuromorphic Circuit Incorporating a Second-Order Locally Active Memristor and Its Parameter Estimation
Dynamics of a Neuromorphic Circuit Incorporating a Second-Order Locally Active Memristor and Its Parameter Estimation Open
Neuromorphic circuits emulate the brain’s massively parallel, energy-efficient, and robust information processing by reproducing the behavior of neurons and synapses in dense networks. Memristive technologies have emerged as key enablers o…
View article: Research on Method to Detect Outlier Values of the Significant Wave Heights Derived from Sentinel - 3a Satellite Altimetry Data in the East Sea
Research on Method to Detect Outlier Values of the Significant Wave Heights Derived from Sentinel - 3a Satellite Altimetry Data in the East Sea Open
The paper focuses on the research of detecting and removing outlier values in significant wave height data derived from satellite altimetry data over the East Sea. The significant wave heights, derived from data of two frequency bands: Ku …
View article: Static Aero-Propulsion Experiment of an Electric Ducted Fan
Static Aero-Propulsion Experiment of an Electric Ducted Fan Open
Electric ducted fans are gaining prominence in aviation due to their compact size, low noise, and zero emissions compared to conventional gas turbines. This study presents an experimental test system for a 390 mm electric Ducted Propulsion…
View article: Chaos, Hyperchaos and Transient Chaos in a 4D Hopfield Neural Network: Numerical Analyses and PSpice Implementation
Chaos, Hyperchaos and Transient Chaos in a 4D Hopfield Neural Network: Numerical Analyses and PSpice Implementation Open
The human brain is an extremely sophisticated system. Several neural models have been proposed to mimic and understand brain function. Most of them incorporate memristors to simulate autapse or self-coupling, electromagnetic radiation and …
View article: Static Aero-Propulsion Experiment of an Electric Ducted Fan
Static Aero-Propulsion Experiment of an Electric Ducted Fan Open
Electric ducted fans are increasingly being applied in the aviation sector due to their advantages in compact size, low noise, and zero emissions when compared to conventional gas turbine engines. This paper presents a test system for an e…
View article: A Simple Third-Order Hopfield Neural Network: Dynamic Analysis, Microcontroller Implementation and Application to Random Number Generation
A Simple Third-Order Hopfield Neural Network: Dynamic Analysis, Microcontroller Implementation and Application to Random Number Generation Open
This manuscript introduces a simple third-order Hopfield neural network. Its dynamics, implementation with a microcontroller and application to random number generation are explored. The model includes three coupled neurons with no synapti…
View article: Development of a Novel Umbilical Retraction Mechanism for a Launch Vehicle
Development of a Novel Umbilical Retraction Mechanism for a Launch Vehicle Open
Umbilical or umbilical cable supplies are required for an apparatus, such as a space vehicle, or for a person, a diver, or an astronaut. For launch vehicles, umbilical cables provide essential elements like electrical power, communication,…
View article: Development of an Adaptive Sliding Mode Controller using Neural Networks for Trajectory Tracking of a Cylindrical Manipulator
Development of an Adaptive Sliding Mode Controller using Neural Networks for Trajectory Tracking of a Cylindrical Manipulator Open
Cylindrical manipulators are extensively used in industrial automation, especially in emerging technologies like 3D printing, which represents a significant future trend. However, controlling the trajectory of nonlinear models with system …
View article: Dynamics and Robust Synchronization of an Oscillator With Cubic and Signum Terms
Dynamics and Robust Synchronization of an Oscillator With Cubic and Signum Terms Open
In recent years, there has been a marked surge in research focused on nonlinear oscillators. Among these, a particular emphasis has been placed on a class of oscillators distinguished by their concealed attractors, drawing considerable att…
View article: Editorial: Special Issue on Application of Fractional Calculus: Mathematical Modeling and Control — Part II
Editorial: Special Issue on Application of Fractional Calculus: Mathematical Modeling and Control — Part II Open
Fractional calculus has emerged as a powerful framework for modeling and controlling complex systems in science and engineering. By extending differentiation and integration to noninteger orders, it provides an effective means of capturing…
View article: Editorial: Special Issue on Application of Fractional Calculus: Mathematical Modeling and Control — Part I
Editorial: Special Issue on Application of Fractional Calculus: Mathematical Modeling and Control — Part I Open
The past few decades have witnessed significant progress in the application of fractional calculus to the modeling and control of complex dynamical systems, particularly due to its ability to capture memory and hereditary effects inherent …
View article: Development of an Adaptive Sliding Mode Controller using Neural Networks for Trajectory Tracking of a Cylindrical Manipulator
Development of an Adaptive Sliding Mode Controller using Neural Networks for Trajectory Tracking of a Cylindrical Manipulator Open
Cylindrical manipulators are extensively used in industrial automation, especially in emerging technologies like 3D printing, which represents a significant future trend. However, controlling the trajectory of nonlinear models with system …
View article: Drug classification system based on drug composition and usage instructions
Drug classification system based on drug composition and usage instructions Open
This study presents a natural language processing (NLP) approach to classify drugs based on compositional and usage descriptions. NLP techniques including text preprocessing, word embedding, and deep learning models were applied to a Vietn…
View article: Computational approaches on integrating vaccination and treatment strategies in the SIR model using Galerkin time discretization scheme
Computational approaches on integrating vaccination and treatment strategies in the SIR model using Galerkin time discretization scheme Open
In this manuscript, we carried out a thorough analysis of the general SIR model for epidemics. We broadened the model to include vaccination, treatment, and incidence rate. The vaccination rate is a testament to the alternatives made by in…
View article: Hyperchaotic Oscillator with Line and Spherical Equilibria: Stability, Entropy, and Implementation for Random Number Generation
Hyperchaotic Oscillator with Line and Spherical Equilibria: Stability, Entropy, and Implementation for Random Number Generation Open
We present a hyperchaotic oscillator with two linear terms and seven nonlinear terms that displays special algebraic properties. Notably, the introduced oscillator features distinct equilibrium types: single-point, line, and spherical equi…
View article: A Rectified Linear Unit-Based Memristor-Enhanced Morris–Lecar Neuron Model
A Rectified Linear Unit-Based Memristor-Enhanced Morris–Lecar Neuron Model Open
This paper introduces a modified Morris–Lecar neuron model that incorporates a memristor with a ReLU-based activation function. The impact of the memristor on the dynamics of the ML neuron model is analyzed using bifurcation diagrams and L…
View article: Multistable Memristor Synapse-Based Coupled Bi-Hopfield Neuron Model: Dynamic Analysis, Microcontroller Implementation and Image Encryption
Multistable Memristor Synapse-Based Coupled Bi-Hopfield Neuron Model: Dynamic Analysis, Microcontroller Implementation and Image Encryption Open
The memristor, a revolutionary electronic component, mimics both neural synapses and electromagnetic induction phenomena. Recent study challenges are the development of effective neural models and discovering their dynamics. In this study,…
View article: Oscillator with Line of Equilibiria and Nonlinear Function Terms: Stability Analysis, Chaos, and Application for Secure Communications
Oscillator with Line of Equilibiria and Nonlinear Function Terms: Stability Analysis, Chaos, and Application for Secure Communications Open
We explore an oscillator with nonlinear functions and equilibrium lines that displays chaos. The equilibrium stability and complexity of the oscillator have been analysed and investigated. The presence of multiple equilibrium lines sets it…
View article: Oscillator without equilibrium and linear terms: Dynamics and application
Oscillator without equilibrium and linear terms: Dynamics and application Open
A significant attention has concentrated on systems with “hidden attractors” in recent years. The aim of this work is to study an oscillator displaying “hidden attractors”. The oscillator has all nonlinear terms but no equilibrium. The osc…
View article: Editorial: Advances in nonlinear systems and networks, volume II
Editorial: Advances in nonlinear systems and networks, volume II Open
EDITORIAL article Front. Phys., 26 March 2024Sec. Interdisciplinary Physics Volume 12 - 2024 | https://doi.org/10.3389/fphy.2024.1396178
View article: Assessing sigmoidal function on memristive maps
Assessing sigmoidal function on memristive maps Open
Memristors offer a crucial element for constructing discrete maps that have garnered significant attention in complex dynamics and various potential applications. In this study, we have integrated memristive and sigmoidal function to propo…
View article: Applying exponential unit for breaking symmetry of memristive maps
Applying exponential unit for breaking symmetry of memristive maps Open
The emergence of memristors has piqued significant interest in memristive maps due to their unique characteristics. In this paper, we introduce a novel and effective method for constructing memristor maps, leveraging the power of exponenti…
View article: Asymmetrical novel hyperchaotic system with two exponential functions and an application to image encryption
Asymmetrical novel hyperchaotic system with two exponential functions and an application to image encryption Open
In this article, asymmetrical novel system with two exponential functions, which can show hyperchaotic behavior, has been proposed. Although new system possesses only one unstable equilibrium. The dynamical behaviors of such system are dis…
View article: Optimization of the fractional-order parameter with the error analysis for human immunodeficiency virus under Caputo operator
Optimization of the fractional-order parameter with the error analysis for human immunodeficiency virus under Caputo operator Open
Human immunodeficiency virus (HIV) infection is said to be a dangerous, extremely severe, and potentially fatal disease. After weakening a person's immune system, it impedes the body's ability to fend off future illnesses. In this study, w…