Results 41 to 50 of about 308 (120)

Reliability Assessment of a Multi-State HVDC System by Combining Markov and Matrix-Based Methods

Energies, 2021
The purpose of this paper is to highlight that, in order to assess the availability of different HVDC cable transmission systems, a more detailed characterization of the cable management significantly affects the availability estimation since the cable ...
Roberto Benato, Antonio Chiarelli, Sebastian Dambone Sessa   +2 more
doaj   +1 more source

The Mathematical History Behind the Granger–Johansen Representation Theorem

Oxford Bulletin of Economics and Statistics, Volume 88, Issue 4, Page 587-602, August 2026.
ABSTRACT When can a vector time series that is integrated once (i.e., becomes stationary after taking first differences) be described in error correction form? The answer to this is provided by the Granger–Johansen representation theorem. From a mathematical point of view, the theorem can be viewed as essentially a statement concerning the geometry of ...
Johannes M. Schumacher
wiley   +1 more source

Multi‐Mode Deep Strong Coupling in a Multi Quantum Well Fabry–Perot Cavity

Advanced Optical Materials, Volume 14, Issue 21, 5 June 2026.
Multi‐mode deep‐strong coupling is demonstrated in a 166‐well heterostructure that acts as a Fabry–Perot cavity. Even cavity modes couple strongly to the cyclotron resonance, producing large vacuum Rabi splittings and a rich polaritonic spectrum captured by a full Hopfield model.
Lucy Hale, Johan Andberger, Ethan Koskas, Frieder Lindel, Mattias Beck, Giacomo Scalari, Jérôme Faist   +6 more
wiley   +1 more source

Research on steady state control strategies of wind farm integration by VSC-LCC hybrid HVDC transmission

Energy Reports, 2020
Wind farm is integrated by a hybrid high voltage direct current (HVDC) system with line commutated converter (LCC) and modular multilevel converter (MMC).
Chunke Hu, Yi Tong, Jiangping Jing, Chengyong Zhao   +3 more
doaj   +1 more source

On the Meaning of Localization in Non‐Local Quantum Field Theory

Annalen der Physik, Volume 538, Issue 6, June 2026.
In non‐local quantum field theory nature does not necessarily allow objects or events to be localized to exact mathematical points. Instead any physical measurement has a built‐in finite resolution set by the non‐locality scale. Spacetime remains continuous and Lorentz‐covariant, but below this scale pointlike localization becomes an idealization ...
E. J. Thompson
wiley   +1 more source

Analysis of the multi-quadrant regulation ability and rapid reactive power support control strategy of CLCC

International Journal of Electrical Power & Energy Systems
The controllable line-commutated converter (CLCC) achieves forced commutation by using a hybrid connection of IGBTs and thyristors, effectively solving the inherent commutation failure (CF) problem of the line-commutated converter (LCC).
Yechun Xin, Zhiqiang Ma, Tuo Wang, Guoqing Li, Yupeng He, Shouqi Jiang   +5 more
doaj   +1 more source

Quantum Information Processing in Human Cognition: Bridging Quantum Phenomena, Neural Dynamics, and Decision‐Making

Advanced Quantum Technologies, Volume 9, Issue 6, June 2026.
ABSTRACT Recent advances at the intersection of quantum physics, neuroscience, and cognitive science have renewed interest in whether quantum phenomena and quantum‐inspired formalisms can inform models of human cognition and decision‐making. While classical neural and computational models explain many aspects of perception and behavior, they face ...
Hamidreza Namazi, Arvindhan M, Helena Chytilova, Ondrej Krejcar   +3 more
wiley   +1 more source

State‐space analysis based pole‐to‐ground line fault isolation strategy for LCC–HVDC systems

IET Generation, Transmission & Distribution, 2019
The common way to isolate the line fault in line‐commutated converter‐based high‐voltage direct current (LCC‐HVDC) transmission grids is regulating the trigger angle of converters on both terminals of the faulted line, which usually depends entirely on ...
Zhihui Dai, Ningning Liu, Cheng Zhang, Siqi Yan   +3 more
doaj   +1 more source

DC Side Impedance Modelling of an Actual Line Commutated Converter High Voltage Direct Current System and DC Resonance Characteristics

High Voltage, Volume 11, Issue 3, Page 725-737, June 2026.
ABSTRACT The stability analysis of Line Commutated Converter High Voltage Direct Current (LCC‐HVDC) is of considerable engineering importance. Establishing its analytical mathematical model helps to analyse stability and the factors that affect stability of the system.
Juanjuan Wang, Juntao Liu, Qingming Xin, Ze Mo, Baixian Ye, Yuekun Liu, Chuang Fu   +6 more
wiley   +1 more source

Overcoming Current Limitations in Triboelectric Nanogenerators via Passive Power Management and Zinc Telluride Material Engineering

Advanced Energy and Sustainability Research, Volume 7, Issue 5, May 2026.
A ZnTe‐based triboelectric nanogenerator integrated with a passive Zener‐triggered silicon‐controlled rectifier power‐management circuit transforms high‐voltage, low‐current output into usable milliampere‐level pulses. The approach enables efficient energy transfer, accelerated capacitor charging, and reliable powering of practical low‐power ...
Fandi Jean, Muhammad Umair Khan, Mahmoud Al Qutayri, Baker Mohammad   +3 more
wiley   +1 more source