Results 61 to 70 of about 1,317 (145)

Review of Catenary Icing on High‐Speed Railways: Characteristics, Impact and Countermeasures

High Voltage, EarlyView.
ABSTRACT The pantograph–catenary system (PCS) is the only path for electrified railway trains to acquire energy. Catenary icing during winter is a common natural phenomenon, which usually leads to the deterioration of the current quality and severely affects the operational safety of trains.
Zheng Li, Guizao Huang, Zhijin Zhang, Yang Liu, Guoqiang Gao, Guolin Yang, Xi Yang, Guangning Wu   +7 more
wiley   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

Boreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein, Thomas Kasper, Alexis Badai Samudra, Martin Theuerkauf, Markus Lothar Fischer, Neda Rahimzadeh, Maria Sekar Proborukmi, Sonja Rigterink, Agnieszka Gruszczyńska, Christian Zeeden, Simon Parfitt, David John Horne, Lucy Roberts, Dustin White, Lisa Brogmus, Hans von Suchodoletz, Tobias Lauer, Marcel Weiss, David Colin Tanner, Brigitte Urban   +19 more
wiley   +1 more source

Enhanced Trajectory Control of Quadrotor UAV Using Fuzzy PID Based Recurrent Neural Network Controller

IEEE Access
This paper presents a novel Fuzzy PID-based Recurrent Neural Network (FPIDRNN) controller designed to enhance trajectory control in quadrotor Unmanned Aerial Vehicles (UAVs).
Nigatu Wanore Madebo, Chala Merga Abdissa, Lebsework Negash Lemma   +2 more
doaj   +1 more source

The Governance of the European Digital Identity Framework Through the Lens of Institutional Mimesis

Regulation &Governance, EarlyView.
ABSTRACT The European Commission's decision to expand its 2014 Regulation on electronic identification and trust services toward wallet‐based digital identities marked a significant shift in the governance of users' digital identities. The intersection between private digital services, public prerogatives, and individual self‐determination raises ...
Linda Weigl, Marta Reysner
wiley   +1 more source

Online optimal tuning of fuzzy PID controller using grey wolf optimizer for quarter car semi-active suspension system

Advances in Mechanical Engineering
In order to reduce vibration and increase ride comfort, this article utilizes a system of quarter-car suspension integrated with a Fuzzy PID controller.
Yunyun Liu, Azizan As’arry, Hesham Ahmed, Abdul Aziz Hairuddin, Mohd Khair Hassan, Mohd Zakimi Zakaria, Shuai Yang   +6 more
doaj   +1 more source

When Regulation Travels: Distrust and Disrespect

Regulation &Governance, EarlyView.
ABSTRACT Endeavoring to avoid the pitfalls of being too trusting of regulated entities' compliance claims, regulators sometimes create regulatory systems with elaborate requirements for verification. But as these accountability and verification regimes attempt to circumvent one set of problems, they may inadvertently create others.
Carol A. Heimer
wiley   +1 more source

Hydrogen to Power: Exploring Current Developments and Future Challenges

Natural Sciences, Volume 6, Issue 3, July 2026.
As the interest in low‐carbon energy systems grows, hydrogen continues to attract attention as a flexible energy carrier for power applications. Developments in hydrogen production, storage, transport, and utilization are explored. In addition, the deployment challenges of hydrogen energy vector related to economics, infrastructure, safety, and ...
Md. Shafiullah, Muhammad Ahmad, Youssef Awda, M. Maaruf, Muaiz O. Ali, Khalid A. AlShumayri, Syed M. Rahman   +6 more
wiley   +1 more source

Integral Sliding Mode Controller for Modular Multilevel Inverter‐Based PMSM Drives

Engineering Reports, Volume 8, Issue 6, June 2026.
The primary contribution of this work is the development of an integral sliding mode controller (ISMC) designed for motor speed and current regulation, optimized to enhance control performance with the unique MMLI structure. The proposed MMLI architecture offers a reduced number of switching components and passive elements, thereby minimizing system ...
Taiea A. Ahmed, Ahmed Ismail M. Ali, Anouar Belahcen, Essam E. M. Mohamed, Mohamed A. Ismeil, Zuhair Muhammed Alaas, Abdel‐Raheem Youssef   +6 more
wiley   +1 more source

Tuning Fuzzy PID Controllers [PDF]

, 2012
After the development of fuzzy logic, an important application of it was developed in control systems and it is known as fuzzy PID controllers. They represent interest in order to be applied in practical applications instead of the linear PID controllers, in the feedback control of a variety of processes, due to their advantages imposed by the non ...
openaire   +1 more source

Comparative Metaheuristic Optimization of PI Controllers for Electric Vehicle Speed Control

Engineering Reports, Volume 8, Issue 6, June 2026.
This paper presents the design, modeling, and simulation validation of an electric vehicle system, using speed variation as a reference to ensure optimal operation in terms of acceleration and deceleration. First, a conventional PI controller controls the vehicle's speed.
Samira Heroual, Belkacem Belabbas, Mohamed Metwally Mahmoud, Yasser Diab, Tayeb Allaoui, Vojtech Blazek, Daniel Eutyche Mbadjoun Wapet, Ali M. El‐Rifaie, Galal F. Abdelaal   +8 more
wiley   +1 more source