Results 51 to 60 of about 340 (170)

AC fault ride through control strategy on inverter side of hybrid HVDC transmission systems

Journal of Modern Power Systems and Clean Energy, 2019
Hybrid high-voltage direct current (HVDC) transmission systems employ a new type of HVDC transmission topology that combines the advantages of the line-commutated converter system and the voltage-source converter system.
Zexin Zhou, Zhengguang Chen, Xingguo Wang, Dingxiang Du, Guosheng Yang, Yizhen Wang, Liangliang Hao   +6 more
doaj   +1 more source

Body Temperature Regulation in the Rat by Muscle Tone

Acta Physiologica, Volume 242, Issue 1, January 2026.
ABSTRACT Aim We have previously described an important role of skeletal muscle tone in body temperature regulation, muscle tone defined as the tonic motor unit activity recorded between movements. Here, we study muscle tone in an extensive sample of new muscles outside (external muscles) and inside (internal muscles) the body core.
Arild Njå, Terje Lømo
wiley   +1 more source

Control strategy of novel hybrid commutated converter based on reverse blocking integrated gate commutated thyristor for commutation failure mitigation

High Voltage
Commutation failure (CF) is an inherent problem faced by line commutated converter high voltage direct current (LCC‐HVDC) technology. To completely solve the problem of CF, we have proposed a novel hybrid commutated converter (HCC) technology based on ...
Zongze Wang, Zhanqing Yu, Lu Qu, Zhichang Yuan, Kangsheng Cui, Jian Shi, Biao Zhao, Rong Zeng   +7 more
doaj   +1 more source

Random planar trees and the Jacobian conjecture

Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract We develop a probabilistic approach to the celebrated Jacobian conjecture, which states that any Keller map (i.e. any polynomial mapping F:Cn→Cn$F\colon \mathbb {C}^n \rightarrow \mathbb {C}^n$ whose Jacobian determinant is a non‐zero constant) has a compositional inverse which is also a polynomial. The Jacobian conjecture may be formulated in
Elia Bisi, Piotr Dyszewski, Nina Gantert, Samuel G. G. Johnston, Joscha Prochno, Dominik Schmid   +5 more
wiley   +1 more source

New Monolithic Modular DC-DC Converter for Constant Current Offshore Interconnection With VSC HVdc Network

IEEE Access
The rapid growth in HVDC (High Voltage Direct Current) grids has shown the falls of point-to-point connections. Several challenges such as the requirement of DC (Direct Current) fault blocking capability, interfacing of different grounding schemes ...
Mohamed Mansour, Mohamed G. Abdel-Moneim, Ayman S. Abdel-Khalik, Shehab Ahmed, Khaled H. Ahmed   +4 more
doaj   +1 more source

Safety Assessment of Critical Aircraft Systems Under Multisource Uncertainty Based on Evidence Network

International Journal of Aerospace Engineering, Volume 2026, Issue 1, 2026.
As civil aircraft components become more autonomous in China, airworthiness certification is facing the problem of insufficient failure data, leading to challenges in terms of uncertainty. Traditional probabilistic models struggle to effectively integrate multisource uncertainties, limiting their application in data‐scarce scenarios.
Nve Xiao, Boyang Li, Xiaocong Wang, Jie Bai, Kan Xie   +4 more
wiley   +1 more source

Topological Aspects of Quadratic Graphs and M‐Polynomials Utilizing Classes of Finite Quasigroups

Journal of Mathematics, Volume 2026, Issue 1, 2026.
Material science, drug design and toxicology studies, which relate a molecule’s structure to its numerous properties and activities, are studied with the use of the topological index. Graphs with finite algebraic structure find extensive applications in fields such as mathematics, elliptic curve cryptography, physics, robotics and information theory ...
Mohammad Mazyad Hazzazi, Muhammad Nadeem, Muhammad Kamran, Muhammad Sagir, Abdu Qaid Alameri, Pramita Mishra   +5 more
wiley   +1 more source

Backward travelling wave-variation-based protection for the transmission line of a hybrid HVDC system

The Journal of Engineering, 2019
The hybrid high-voltage direct current (HVDC) transmission system comprising a line-commutated converter (LCC) on the rectifier side and a voltage source converter (VSC) on the inverter side combines the advantages of both LCC and VSC.
Yanting Wang, Baohui Zhang, Baohui Zhang
doaj   +1 more source

In Situ Graph Reasoning and Knowledge Expansion Using Graph‐PRefLexOR

Advanced Intelligent Discovery, Volume 1, Issue 3, December 2025.
Graph‐PRefLexOR is a novel framework that enhances language models with in situ graph reasoning, symbolic abstraction, and recursive refinement. By integrating graph‐based representations into generative tasks, the approach enables interpretable, multistep reasoning.
Markus J. Buehler
wiley   +1 more source

Applicability analysis of travelling wave protection for the hybrid HVDC system

The Journal of Engineering, 2019
The hybrid high-voltage direct current (HVDC) system, in which the rectifier is made up of the line commutated converter (LCC) and the inverter is composed of the modular multilevel converter (MMC), has quite different fault characteristics from the ...
Shaojie Cheng, Yanting Wang, Baohui Zhang, Hongyue Ma   +3 more
doaj   +1 more source