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3,176 Results Found

  • Article
  • Open Access
4 Citations
2,374 Views
24 Pages

26 March 2023

With the vigorous development of mechanical intelligence in industrial manufacturing, tracking control dynamic systems have been widely applied in many aspects of industry. In this paper, we present one theorem to discuss the validity condition of a...

(This article belongs to the Special Issue Mathematic Control and Artificial Intelligence)
  • Article
  • Open Access
12 Citations
2,819 Views
16 Pages

Towards Higher-Order Zeroing Neural Network Dynamics for Solving Time-Varying Algebraic Riccati Equations

  • Houssem Jerbi,
  • Hadeel Alharbi,
  • Mohamed Omri,
  • Lotfi Ladhar and ,
  • Theodore E. Simos,
  • Spyridon D. Mourtas and
  • Vasilios N. Katsikis
  • + 2 authors+ 0 author

28 November 2022

One of the most often used approaches for approximating various matrix equation problems is the hyperpower family of iterative methods with arbitrary convergence order, whereas the zeroing neural network (ZNN) is a type of neural dynamics intended fo...

(This article belongs to the Section E2: Control Theory and Mechanics)
  • Article
  • Open Access
10 Citations
2,595 Views
18 Pages

4 July 2023

The double-holding water tank system is a common non-linear control system that plays a crucial role in process control in the chemical industry. It consists of two cylindrical glass containers: the preset tank and the main tank. The main challenge i...

  • Article
  • Open Access
5 Citations
3,473 Views
40 Pages

Tripartite Dynamic Zero-Sum Quantum Games

  • Hui-Min Cheng and
  • Ming-Xing Luo

27 January 2021

The Nash equilibrium plays a crucial role in game theory. Most of results are based on classical resources. Our goal in this paper is to explore multipartite zero-sum game with quantum settings. We find that in two different settings there is no stra...

(This article belongs to the Section Quantum Information)
  • Article
  • Open Access
4 Citations
747 Views
32 Pages

13 June 2026

Information infrastructure is essential for digital transformation and AI-enabled services, but its operation also involves high electricity consumption and carbon emissions. This study develops a tripartite evolutionary game model involving the gove...

(This article belongs to the Special Issue Systems Thinking for Real-World Problem Solving)
  • Article
  • Open Access
16 Citations
3,925 Views
20 Pages

29 January 2021

Most wind turbines are monitored and controlled by supervisory control and data acquisition systems that involve remote communication through networks. Despite the flexibility and efficiency that network-based monitoring and control systems bring, th...

(This article belongs to the Section Electrical, Electronics and Communications Engineering)
  • Article
  • Open Access
9 Citations
4,314 Views
25 Pages

24 February 2022

This paper focuses on analyzing the dynamic response of an innovated quasi-zero stiffness pneumatic vibration isolator (QZSPVI) using two mechanisms, including wedge and semicircle cam. Different from other studies relating quasi-zero stiffness isola...

(This article belongs to the Topic Dynamical Systems: Theory and Applications)
  • Article
  • Open Access
17 Citations
3,906 Views
16 Pages

Zero Average Dynamic Controller for Speed Control of DC Motor

  • Fredy E. Hoyos,
  • John E. Candelo-Becerra and
  • Alejandro Rincón

17 June 2021

This paper presents the use of the buck converter with Zero Average Dynamics to control the speed of a permanent magnet direct current motor. For this objective, we consider a fourth-order nonlinear model that describes the system’s dynamics and test...

(This article belongs to the Topic Dynamical Systems: Theory and Applications)
  • Article
  • Open Access
1,812 Views
23 Pages

Global economic fluctuations as exemplified by the recent COVID-19 financial crisis significantly impact the construction industry, particularly steel rebar supply chain and procurement. This impedes engineers’ efforts toward achieving near-zer...

(This article belongs to the Section Construction Management, and Computers & Digitization)
  • Article
  • Open Access
617 Views
24 Pages

17 September 2026

Discrete symmetries govern the motion and real axis crossings of interference zeros in the meromorphic continuation of a wave field, thereby determining the singular structure of its logarithmic derivatives. We considered two counter-propagating seco...

(This article belongs to the Special Issue Symmetry in Mathematical Physics: Current Topics and Recent Advances—in Honour of Professor Jean-Pierre Gazeau on the Occasion of His 80th Birthday)
  • Article
  • Open Access
5 Citations
1,857 Views
23 Pages

5 December 2024

The carbon quota trading mechanism is considered one of the most effective incentives for carbon reduction to address global climate change. Currently, the EU has adopted this mechanism to intervene in the zero-carbon transition of shipping companies...

  • Article
  • Open Access
5 Citations
2,379 Views
29 Pages

12 December 2024

Mixed zero-sum games consider both zero-sum and non-zero-sum differential game problems simultaneously. In this paper, multiplayer mixed zero-sum games (MZSGs) are studied by the means of an integral reinforcement learning (IRL) algorithm under the d...

  • Article
  • Open Access
3 Citations
2,450 Views
14 Pages

Attenuation of Zero Sequence Voltage Using a Conventional Three-Wire Dynamic Voltage Restorer

  • Rafael Neto,
  • Yandi Landera,
  • Francisco Neves,
  • Helber de Souza and ,
  • Marcelo Cavalcanti and
  • Gustavo Azevedo
  • + 1 author+ 0 author

25 February 2021

Voltage sags/swells and harmonics are recurring problems in electric energy distribution systems. In order to solve these issues, several dynamic voltage restorer (DVR) topologies, such as the conventional three-wire DVR, have been proposed in the li...

(This article belongs to the Section F: Electrical Engineering)
  • Article
  • Open Access
29 Citations
6,913 Views
19 Pages

A Dynamical and Zero-Inflated Negative Binomial Regression Modelling of Malaria Incidence in Limpopo Province, South Africa

  • Gbenga J. Abiodun,
  • Olusola S. Makinde,
  • Abiodun M. Adeola,
  • Kevin Y. Njabo and ,
  • Peter J. Witbooi,
  • Ramses Djidjou-Demasse and
  • Joel O. Botai
  • + 2 authors+ 0 author

Recent studies have considered the connections between malaria incidence and climate variables using mathematical and statistical models. Some of the statistical models focused on time series approach based on Box–Jenkins methodology or on dyna...

  • Article
  • Open Access
13 Citations
4,232 Views
15 Pages

Hybrid Zero Dynamics Control for Gait Guidance of a Novel Adjustable Pediatric Lower-Limb Exoskeleton

  • Anthony Goo,
  • Curt A. Laubscher,
  • Jason J. Wiebrecht,
  • Ryan J. Farris and
  • Jerzy T. Sawicki

Exoskeleton technology has undergone significant developments for the adult population but is still lacking for the pediatric population. This paper presents the design of a hip–knee exoskeleton for children 6 to 11 years old with gait abnormal...

(This article belongs to the Topic Applied System on Biomedical Engineering, Healthcare and Sustainability)
  • Article
  • Open Access
4 Citations
4,398 Views
25 Pages

Optimal Control of Energy Systems in Net-Zero Energy Buildings Considering Dynamic Costs: A Case Study of Zero Carbon Building in Hong Kong

  • Tao Lv,
  • Yuehong Lu,
  • Yijie Zhou,
  • Xuemei Liu and ,
  • Changlong Wang,
  • Yang Zhang,
  • Zhijia Huang and
  • Yanhong Sun
  • + 3 authors+ 0 author

8 March 2022

Net-zero energy buildings coupled with multiple energy demands on the load side, which utilize renewable energy to a larger extent, are an effective way to consume distributed capacity in situ and need to face the operational challenges brought by th...

(This article belongs to the Section Energy Sustainability)
  • Article
  • Open Access
40 Citations
5,892 Views
13 Pages

COVID-19 Burnout Subject to the Dynamic Zero-COVID Policy in Hong Kong: Development and Psychometric Evaluation of the COVID-19 Burnout Frequency Scale

  • Sam S. S. Lau,
  • Cherry C. Y. Ho,
  • Rebecca C. K. Pang,
  • Susan Su and ,
  • Heather Kwok,
  • Sai-fu Fung and
  • Roger C. Ho
  • + 2 authors+ 0 author

6 July 2022

We sought to develop and validate a self-assessment burnout scale of the Chinese general population during the COVID-19 pandemic in the context of a dynamic zero-COVID policy. Factors relevant to individuals’ burnout during the prolonged COVID-...

(This article belongs to the Collection Public Health and Social Science on COVID-19)
  • Article
  • Open Access
10 Citations
5,230 Views
21 Pages

26 January 2023

One advantage of a resistive sensor array (RSA) with shared rows (M) and shared columns (N) is the reduced number of wires from M × N + 1 to M + N which can greatly lessen the complexity and burden on wearable electronic systems. However, the d...

(This article belongs to the Special Issue Electronics for Sensors, Volume 2)
  • Article
  • Open Access
8 Citations
3,202 Views
32 Pages

A Zero-Trust Access Control Model Based on Attribute and Dynamic Trust Evaluation for Cloud Environments

  • Yihuan Mao,
  • Wei Fu,
  • Yue Zhao,
  • Zhimin Yuan and ,
  • Zhihong Sun and
  • Yang Zhao
  • + 1 author+ 0 author

2 December 2025

Attribute-Based Access Control (ABAC) has become the most suitable access control method for cloud environments due to its flexibility and fine-grained advantages. However, it suffers from issues such as insufficient dynamic adaptability and a lack o...

(This article belongs to the Section A: Computer Science)
  • Feature Paper
  • Article
  • Open Access
2 Citations
2,384 Views
23 Pages

18 November 2024

The South African gold mining industry requires complex water reticulation systems to deliver chilled water to underground production areas. However, chilled- and service-water wastage, including leaks and misuse, contribute to approximately 50% of t...

(This article belongs to the Special Issue Post-Mining Management)
  • Article
  • Open Access
13 Citations
4,527 Views
25 Pages

Static and Dynamic Analysis of 6-DOF Quasi-Zero-Stiffness Vibration Isolation Platform Based on Leaf Spring Structure

  • Zhen Wang,
  • Chuanlin He,
  • Yan Xu,
  • Dong Li and ,
  • Zhanyuan Liang,
  • Wei Ding and
  • Lei Kou
  • + 2 authors+ 0 author

18 April 2022

Multi-degree-of-freedom isolator with low stiffness is a fair prospect in engineering application. In this paper, a novel 6-DOF QZS vibration isolation platform based on leaf spring structure is presented. Its bearing capacity is provided through fou...

(This article belongs to the Special Issue Control Problem of Nonlinear Systems with Applications)
  • Review
  • Open Access
13 Citations
4,727 Views
23 Pages

22 March 2025

With the rapid development of precision instruments, aerospace, and automotive industries, the demand for compact vibration isolators capable of suppressing low-frequency vibrations has surged. Although prior reviews have established the theoretical...

(This article belongs to the Collection Recent Applications of Active and Passive Noise Control)
  • Article
  • Open Access
2 Citations
1,870 Views
19 Pages

2 June 2024

The problem of inverting dynamic complex matrices remains a central and intricate challenge that has garnered significant attention in scientific and mathematical research. The zeroing neural network (ZNN) has been a notable approach, utilizing time...

(This article belongs to the Special Issue Differential Equations and Inverse Problems)
  • Article
  • Open Access
2 Citations
3,120 Views
10 Pages

A Comparison of Dynamic Gait Stability between the Young and Elderly Female Populations Using the Zero-Moment Point Method

  • Sang Kuy Han,
  • Jeong-Bae Ko,
  • Yeonwoo Yu,
  • Jae-Soo Hong and ,
  • Jei-Cheong Ryu,
  • Ki Kwang Lee and
  • Sung-Jae Kang
  • + 2 authors+ 0 author

28 December 2023

A compromised stability in the elderly population is considered a major factor for fall risk assessment. The dynamic stability of human gait with various mathematical metrics has been extensively studied to find a prediction index and fall prevention...

(This article belongs to the Section Bioelectronics)
  • Article
  • Open Access
3 Citations
3,514 Views
20 Pages

The Zero Trust (ZT) model is pivotal in enhancing the security of distributed systems by emphasizing rigorous identity verification, granular access control (AC), and continuous monitoring. To address the complexity and scalability challenges of mode...

  • Article
  • Open Access
58 Citations
4,631 Views
14 Pages

22 January 2020

Surface modification of nanoscale zero-valent iron (nZVI) using polymer stabilizers (e.g., sodium carboxymethyl cellulose, CMC) is usually used to minimize aggregation, increase stability, and enhance transport of nZVI. We investigated the stability...

  • Article
  • Open Access
4 Citations
2,696 Views
23 Pages

Environmental and Energy Performances of the Nearly Net-Zero Energy Solar Decathlon House with Dynamic Facades: A Comparison of Four Climate Regions

  • Fangfang Gong,
  • Yongchao Ma,
  • Feng Shi,
  • Chen Chen and ,
  • Linlin Tian and
  • Jingjing Huang
  • + 1 author+ 0 author

20 December 2024

Dynamic facades allow for effective climate adaptability, representing a new trend in future building envelope design. Present research on dynamic facades often focuses solely on certain aspects of the built environment or relies entirely on simulati...

(This article belongs to the Section Building Energy, Physics, Environment, and Systems)
  • Article
  • Open Access
4 Citations
2,627 Views
19 Pages

28 December 2023

Nano zero-valent iron (nZVI) technologies have gained recognition for the remediation of heavily contaminated sites and reused as backfilling soil. The moisture environment at these sites not only impacts the reactions and reactivity of nZVI but also...

(This article belongs to the Section Sustainable Engineering and Science)
  • Article
  • Open Access
11 Citations
3,336 Views
19 Pages

15 August 2023

Unmanned aerial vehicle (UAV) swarm coordinated confrontation is a hot topic in academic research at home and abroad, and dynamic maneuver decision-making is one of the most important research fields for UAV countermeasures. Aiming at the complexity,...

  • Article
  • Open Access
1,726 Views
21 Pages

Constant luminous flux lamps are required for ensuring reliable and consistent illumination in various applications, including emergency lighting, outdoor activities, and general use. However, some activities may require maintaining a constant lumino...

  • Article
  • Open Access
3 Citations
1,429 Views
21 Pages

19 November 2025

This study examines how Zero-Waste Management (ZWM) and Green Innovative Supply Chain Management (GISCM) influence environmental and operational performance through the mediating role of Green Dynamic Capabilities (GDCs). Building on the Resource-Bas...

  • Article
  • Open Access
13 Citations
2,849 Views
20 Pages

Dynamic complex matrix inversion (DCMI) problems frequently arise in the territories of mathematics and engineering, and various recurrent neural network (RNN) models have been reported to effectively find the solutions of the DCMI problems. However,...

(This article belongs to the Special Issue Analog AI Circuits and Systems)
  • Article
  • Open Access
182 Views
33 Pages

16 October 2026

Future sixth-generation (6G) Internet of Everything (IoE) networks require zero-touch management systems capable of autonomously allocating communication and computational resources, satisfying service-level constraints, and providing transparent exp...

(This article belongs to the Special Issue Next-Generation Wireless Networks: Advances in 5G, 6G, and Broadband Communication)
  • Article
  • Open Access
2 Citations
2,804 Views
17 Pages

28 August 2025

Market indices, such as the S&P 500, serve as compressed representations of complex constituent-level dynamics. This study proposes a zero-shot forecasting framework capable of predicting index-level trajectories without direct supervision from i...

(This article belongs to the Special Issue Statistics and Data Science)
  • Article
  • Open Access
734 Views
26 Pages

Integrating Well-to-Wheel Life Cycle Assessment and System Dynamics to Evaluate the Carbon and Health Impacts of BEVs and FCEVs Under Taiwan’s 2050 Net-Zero Pathway

  • Yung-Shuen Shen,
  • Guan-Ting Huang,
  • Lance Hongwei Huang,
  • Chien-Hung Kuo and ,
  • Ali Ouattara and
  • Allen H. Hu
  • + 1 author+ 0 author

22 May 2026

To address transportation-related emissions, Taiwan’s 2022 net-zero strategy sets targets to increase the adoption of battery electric vehicles (BEVs). However, current policy frameworks insufficiently consider the technological diversity of lo...

(This article belongs to the Special Issue Electric and Hybrid Vehicles: Technology Trends, Challenges and Opportunities—3rd Edition)
  • Article
  • Open Access
6 Citations
2,945 Views
18 Pages

Zero Average Surface Controlled Boost-Flyback Converter

  • Juan-Guillermo Muñoz,
  • Fabiola Angulo and
  • David Angulo-Garcia

24 December 2020

The boost-flyback converter is a DC-DC step-up power converter with a wide range of technological applications. In this paper, we analyze the boost-flyback dynamics when controlled via a modified Zero-Average-Dynamics control technique, hereby named...

(This article belongs to the Special Issue Electronic Power and Energy Systems)
  • Article
  • Open Access
832 Views
23 Pages

30 October 2025

Controllers designed on the basis of an approximate discrete time model can fail when they are applied to the real processes. This is a problem of interest in adaptive symmetry control system theory. In this paper, we introduce the certain polynomial...

  • Communication
  • Open Access
1 Citations
4,184 Views
10 Pages

10 May 2019

A theoretical framework for determining the dynamics of interacting sub-systems is proposed in this paper. Specifically, a systematic analysis is performed that results in an indication about whether an MP or an NMP dynamics occurs in the analyzed pr...

  • Article
  • Open Access
2 Citations
5,604 Views
19 Pages

This paper considers observation driven models with conditional mean and variance dynamics for non-negative valued time series. The motivation is to relax the restriction imposed on the higher order moment dynamics in standard multiplicative error mo...

  • Article
  • Open Access
2 Citations
2,896 Views
15 Pages

Performance of the Boost Converter Controlled with ZAD to Regulate DC Signals

  • Simeón Casanova Trujillo,
  • John E. Candelo-Becerra and
  • Fredy E. Hoyos

This paper presents the performance of a boost converter controlled with a zero average dynamics technique to regulate direct current signals. The boost converter is modeled in a compact form, and a variable change is performed to depend only on the...

(This article belongs to the Special Issue Control Systems, Mathematical Modeling and Automation)
  • Feature Paper
  • Article
  • Open Access
2,028 Views
13 Pages

21 April 2025

The 3-dimensional modified van der Pol–Duffing oscillator has been studied by several authors. We complete its study, first characterizing its zero-Hopf equilibria and then its zero-Hopf bifurcations—i.e., we provide sufficient conditions...

(This article belongs to the Special Issue Advances in Mathematical Modeling and Related Topics)
  • Article
  • Open Access
10 Citations
9,102 Views
16 Pages

IGBT Dynamic Loss Reduction through Device Level Soft Switching

  • Lan Ma,
  • Hongbing Xu,
  • Alex Q. Huang,
  • Jianxiao Zou and
  • Kai Li

8 May 2018

Due to its low conduction loss, hence high current ratings, as well as low cost, Silicon Insulated Gate Bipolar Transistor (Si IGBT) is widely used in high power applications. However, its switching frequency is generally low because of relatively la...

(This article belongs to the Special Issue Emerging Power Electronics Technologies for Power Systems and Machine Drives)
  • Article
  • Open Access
5 Citations
3,330 Views
13 Pages

9 June 2020

Liquid-handling robots are designed to dispense sub-microliter quantities of fluids for applications including laboratory tests. When larger amounts of liquids are involved, sloshing must be considered as a parameter affecting stability, which is of...

(This article belongs to the Special Issue Advances in Mechanical Systems Dynamics 2020)
  • Article
  • Open Access
17 Citations
6,236 Views
19 Pages

30 December 2021

Modelling errors and robust stabilization/tracking problems under parameter and model uncertainties complicate the control of the flexible underactuated systems. Chattering-free sliding-mode-based input-output control law realizes robustness against...

(This article belongs to the Topic Dynamical Systems: Theory and Applications)
  • Article
  • Open Access
32 Citations
5,219 Views
16 Pages

Research on Medical Security System Based on Zero Trust

  • Zhiqiang Wang,
  • Xinyue Yu,
  • Peiyang Xue,
  • Yunhan Qu and
  • Lei Ju

6 April 2023

With the rapid development of Internet of Things technology, cloud computing, and big data, the combination of medical systems and information technology has become increasingly close. However, the emergence of intelligent medical systems has brought...

(This article belongs to the Special Issue Internet of Medical Things and Smart Healthcare)
  • Feature Paper
  • Article
  • Open Access
5 Citations
1,125 Views
26 Pages

26 March 2026

This work develops a zero-trust, physics-constrained mathematical framework for detecting stealthy drift perturbations in power system dynamical models. Such perturbations constitute adversarial, statistical deviations that preserve first-order opera...

(This article belongs to the Special Issue Application of Mathematical Method and Models in Dynamic System, 2nd Edition)
  • Article
  • Open Access
640 Views
19 Pages

20 March 2026

This paper will present a constant-force vibration isolator (CFVI), in which the isolated load is supported by two pulley-roller mechanisms, while the dynamic stiffness is modified by a cam mechanism with the piecewise profile redefined by the user....

(This article belongs to the Section C2: Dynamical Systems)
  • Review
  • Open Access
40 Citations
15,559 Views
20 Pages

29 July 2013

A circular thermodynamics of organisms and sustainable systems is presented based on dynamic closures in nested space-time domains that enable the system to approach the ideal of zero entropy production simultaneously at equilibrium and far from equi...

  • Article
  • Open Access
1 Citations
1,609 Views
35 Pages

Beyond Linear Limits: Advanced Nonlinear Suspensions for Enhanced Vibration Control

  • Farhad S. Samani,
  • Amirali Mehrabian,
  • Antonio Zippo and
  • Francesco Pellicano

10 February 2026

The vehicle suspensions have the primary task of attenuating the forces coming from the road surface. The performance is directly linked to the stiffness of the suspension system. Traditional suspensions, composed of linear elements, effectively damp...

(This article belongs to the Special Issue Mastering Vibrations: The Latest Breakthroughs in Control for Mechanical Systems)
  • Article
  • Open Access
13 Citations
4,357 Views
20 Pages

As aerostatic bearings are used in high-speed metal-cutting machines to increase machining accuracy, there is the need to improve their characteristics, including compliance, which is usually high. In practical applications, a significant reduction o...

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