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Showing 20 of 21 academic articles

Alterations in Hip and Knee Joint Contact Force Waveforms and Orientation Induced by Gait Modifications: A Case Study

Laura Rathmair, Willi Koller, Clara Egner, Kevin Kitir et al. • Current Issues in Sport Science (2026)

Introduction & Purpose Idiopathic torsional deformities of lower limb bones can affect a patient’s gait pattern and joint health, while their cause remains unidentified (Koller et al., 2026). Abnormal joint loadings and the progression of ...

DOAJ Open Access (DOAJ) DOI: 10.36950/2026.5ciss011

Attitude Control of a Vehicle with Active Airfoil and Suspension Systems Using Integral Action for Body Angle and Tire Deflection

Syed Babar Abbas, Iljoong Youn • Actuators (2026)

This paper presents a novel approach to design an attitude motion control strategy of a vehicle to mitigate lateral or longitudinal inertial forces acting on the passenger during cornering, braking, and acceleration maneuvers. The collabora...

DOAJ Open Access (DOAJ) DOI: 10.3390/act15060317

A Fractional-Order Complexity Framework for Misinformation Propagation With Fact-Checking Saturation and Social Vulnerability Dynamics

Shewafera Wondimagegnhu Teklu, M. A. Abdelkawy, Waleed Adel • Complexity (2026)

Misinformation spreads through communities in ways that resemble infectious diseases, but existing mathematical models often miss three real-world complexities: People remember past information (memory effects), some folks are more easily f...

DOAJ Open Access (DOAJ) DOI: 10.1155/cplx/8861194

Elements of mathematical ecology

Mark Kot • Choice Reviews Online (2002)

"Elements of Mathematical Ecology provides an introduction to classical and modern mathematical models, methods, and issues in population ecology. The first part of the book is devoted to simple, unstructured population models that, for the...

OPENALEX DOI: https://doi.org/10.5860/choice.39-3372

Elements of Mathematical Ecology

Mark Kot • Cambridge University Press eBooks (2001)

Elements of Mathematical Ecology provides an introduction to classical and modern mathematical models, methods, and issues in population ecology. The first part of the book is devoted to simple, unstructured population models that ignore mu...

OPENALEX DOI: https://doi.org/10.1017/cbo9780511608520

Real-time obstacle avoidance of mobile robots using state-dependent Riccati equation approach

Seyyed Mohammad Hosseini Rostami, Arun Kumar Sangaiah, Jin Wang, Hye-jin Kim • EURASIP Journal on Image and Video Processing (2018)

Abstract In this paper, state-dependent Riccati equation (SDRE) method-based optimal control technique is applied to a robot. In recent years, issues associated with the robotics have become one of the developing fields of research. Accordi...

DOAJ Open Access (DOAJ) DOI: 10.1186/s13640-018-0319-1

Optimal Control of Spatially Distributed Systems

Nader Motee, Ali Jadbabaie • IEEE Transactions on Automatic Control (2008)

In this paper, we study the structural properties of optimal control of spatially distributed systems. Such systems consist of an infinite collection of possibly heterogeneous linear control systems that are spatially interconnected via cer...

OPENALEX DOI: https://doi.org/10.1109/tac.2008.929366

Concurrent frequency–voltage stabilization for hybrid microgrid with virtual inertia support

Abdul Latif, S. M. Suhail Hussain, Atif Iqbal, Dulal Chandra Das et al. • IET Renewable Power Generation (2023)

Abstract This paper presents a novel control scheme for combined frequency and voltage stabilization of an islanded multi‐generator hybrid microgrid (IHμG). The control concept incorporates an improved virtual inertia support scheme (IVIS) ...

DOAJ Open Access (DOAJ) DOI: 10.1049/rpg2.12729

Research on local voltage control strategy based on high-penetration distributed PV systems

Xiaojian Huang, Haoming Liu, Bo Zhang, Jianchun Wang et al. • The Journal of Engineering (2019)

With the high-penetration distributed photovoltaic (PV) systems accessed to a distribution network, the peak active power output of PV systems is always greater than the total local load demands, which might lead to the issues of overvoltag...

DOAJ Open Access (DOAJ) DOI: 10.1049/joe.2018.9245

Well-posedness of a class of two-point boundary value problems associated with ordinary differential equations

Ruyi Liu, Zhen Wu • Advances in Difference Equations (2018)

Abstract This paper introduces the regular decoupling field to study the existence and uniqueness of solutions of two-point boundary value problems for a class of ordinary differential equations which can be derived from the maximum princip...

DOAJ Open Access (DOAJ) DOI: 10.1186/s13662-018-1510-5

Precise Cruise Control for Fixed-Wing Aircraft Based on Proximal Policy Optimization with Nonlinear Attitude Constraints

Haotian Wu, Yan Guo, Juliang Cao, Zhiming Xiong et al. • Aerospace (2025)

In response to the issues of severe pitch oscillation and unstable roll attitude present in existing reinforcement learning-based aircraft cruise control methods during dynamic maneuvers, this paper proposes a precise control method for air...

DOAJ Open Access (DOAJ) DOI: 10.3390/aerospace12080670