Results 61 to 70 of about 7,034,137 (387)

The Case of a 28‐Year‐Old Woman With Medically Refractory Focal Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT We present the case of a 28‐year‐old right‐handed woman with medically refractory focal epilepsy. Her seizure semiology and electroencephalography (EEG) indicated a seizure onset zone in the right central‐parietal area. However, both MRI and PET scans were unremarkable, showing no focal lesions or areas of altered metabolism.
Rishi Sharma, Ilo Leppik, Thomas Henry, Thaddeus Walczak, Sima Patel, Robert McGovern   +5 more
wiley   +1 more source

A graph neural network enhanced decision transformer for efficient optimization in dynamic smart charging environments

Energy and AI
Electric-vehicle smart charging requires quick decision-making under uncertainty while enforcing strict electricity grid and user requirements. Mathematical optimization becomes too slow at scale, while online reinforcement learning struggles with sparse
Stavros Orfanoudakis, Nanda Kishor Panda, Peter Palensky, Pedro P. Vergara   +3 more
doaj   +1 more source

Cascade Failure in a Phase Model of Power Grids

, 2012
We propose a phase model to study cascade failure in power grids composed of generators and loads. If the power demand is below a critical value, the model system of power grids maintains the standard frequency by feedback control.
Amaral L. A. N., Arenas A., Barabási A. L., Buldyrev S. V., Buzna L., Chassin D. P., Dörfler F., Filatrella G., Hines P., Kinney R., Moreno M., Sakaguchi H., Sakaguchi H., Sauer P. W., Strogatz S. H., Watts D. J.   +15 more
core   +1 more source

A New Virtual Synchronous Generator Design Based on the SMES System for Frequency Stability of Low-Inertia Power Grids

Energies, 2020
In light of the challenges of integrating more renewable energy sources (RESs) into the utility grid, the virtual synchronous generator (VSG) will become an indispensable configuration of modern power systems.
G. Magdy, Abualkasim Bakeer, Morsy Nour, E. Petlenkov   +3 more
semanticscholar   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri, Isabella Dallasta, Ciaran Stone, Sophia Girgenti, Neda Gould, Rafael H. Llinas, Jonathan Z. Simon, Elisabeth Breese Marsh   +7 more
wiley   +1 more source

Selection of an IGCT for multilevel converters dedicated to high‐voltage direct current grid connection of offshore wind‐farms

IET Power Electronics, 2021
Grid connection of remote offshore wind‐parks uses high‐voltage direct current technology and in order to reduce costs and losses and maximise profitability, semiconductor power losses must be minimised.
Davin Guedon, Philippe Ladoux, Sébastien Sanchez, Sébastien Cornet, Thomas Stiasny, Christian Winter   +5 more
doaj   +1 more source

Emergence of scale-free blackout sizes in power grids [PDF]

Physical Review Letters, 2020
We model power grids as graphs with heavy-tailed sinks, which represent demand from cities, and study cascading failures on such graphs. Our analysis links the scale-free nature of blackout sizes to the scale-free nature of city sizes, contrasting ...
T. Nesti, F. Sloothaak, B. Zwart
semanticscholar   +1 more source

Predicting Epileptogenic Tubers in Patients With Tuberous Sclerosis Complex Using a Fusion Model Integrating Lesion Network Mapping and Machine Learning

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Accurate localization of epileptogenic tubers (ETs) in patients with tuberous sclerosis complex (TSC) is essential but challenging, as these tubers lack distinct pathological or genetic markers to differentiate them from other cortical tubers.
Tinghong Liu, Qi Wang, Suhui Kuang, Dezhi Cao, Ping Ding, Shaohui Zhang, Haihua Wei, Zhirong Wei, Jinshan Xu, Xinyu Huang, Bing Liu, Shuli Liang   +11 more
wiley   +1 more source

Assessing Oscillatory Stability With Dominant Grid-Forming Power Systems for Active Power Imbalances

IEEE Open Access Journal of Power and Energy
As the integration of renewable energy accelerates, ensuring power system stability becomes increasingly critical. This research utilized a Root Mean Square (RMS) synthetic model of the future 380 kV Dutch power system towards 2050 to analyze its ...
Sander Lid Skogen, Jose Luis Rueda Torres   +1 more
doaj   +1 more source

Paradigm and Paradox in Topology Control of Power Grids [PDF]

, 2018
Corrective Transmission Switching can be used by the grid operator to relieve line overloading and voltage violations, improve system reliability, and reduce system losses.
Baillieul, John, Wang, Shuai
core   +1 more source