Results 31 to 40 of about 1,572,371 (300)

Voltage Graphs

Discrete Mathematics, 1974
AbstractA possible way to obtain a complicated graph imbedding in a surface is to derive it as a covering of a simpler imbedding by assigning “voltages” to the edges of the simpler imbedding. Although this new method is but the dual of the current graph construction,it has independent importance in practical applications, illustrated here by a ...
openaire   +2 more sources

Transient voltage stresses in MMC–HVDC links – impulse analysis and novel proposals for synthetic laboratory generation

High Voltage, 2018
To evaluate and optimise insulation coordination concepts for state of the art high-voltage direct current (HVDC) transmission systems, appropriate test voltage shapes are required for laboratory imitation of occurring stresses.
Claudius Freye, Simon Wenig, Max Goertz, Thomas Leibfried, Frank Jenau   +4 more
doaj   +1 more source

Electrical Treeing of SiR and SiR/Fe₃O₄ Nanocomposites in High Magnetic Field

IEEE Access, 2023
This paper investigates the effects of high magnetic field on electrical treeing of silicone rubber (SiR). Experimental results show that electrical trees are more easily to be initiated and spread further along the direction of electric field under the ...
Mingyang Wang, Xuegong Yin, Yuhao Liu, Boxue Du, Congzhao Xue   +4 more
doaj   +1 more source

Charging models for airborne suspended particles around HVDC lines

High Voltage, 2021
Ground total electric field (GTEF) is a vital parameter in the field of electromagnetic environment of high voltage direct current (HVDC) lines. Some experimental works reported that airborne suspended particles can be charged in the corona ion flow of ...
Kun He, Xiaoqian Ma, Jiayu Lu, Weijiang Chen, Li Xie, Yong Ju, Luxing Zhao   +6 more
doaj   +1 more source

On specification-based cyber-attack detection in smart grids

Energy Informatics, 2022
The transformation of power grids into intelligent cyber-physical systems brings numerous benefits, but also significantly increases the surface for cyber-attacks, demanding appropriate countermeasures.
Ömer Sen, Dennis van der Velde, Maik Lühman, Florian Sprünken, Immanuel Hacker, Andreas Ulbig, Michael Andres, Martin Henze   +7 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

Optimization of Low-Carbon Integrated Energy Systems With Efficient Hydrogen Use and Flexible CCPP-MR-HCHP Operations

International Transactions on Electrical Energy Systems
With the increasing integration of renewable energy sources into the power system, challenges such as wind curtailment and operational flexibility are becoming more prominent.
Zheng Wang, Yang Qi, Rui Wang, Shaoyi Ren, Jun Wu   +4 more
doaj   +1 more source

Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine, Hallie Coltin, Sylvia Cheng, Lucie Lafay‐Cousin, Vanan Issai Magimairajan, Craig Erker, Stéphanie Vairy, Lynette Bowes, Adam Fleming, Donna Johnston, Sarah McKillop, Roona Sinha, Julie Bennett, Christina Coleman, Laura Wheaton, Shayna Zelcer, Samuele Renzi, Thai Hoa Tran   +17 more
wiley   +1 more source

Study of Transformer Core Vibration Considering Magnetostrictive Anisotropy

Active and Passive Electronic Components
Due to the influence of the magnetostrictive effect of silicon steel sheet, the core inevitably generates vibration in the working process of the transformer, and at the same time, there are differences in the magnetostrictive properties of silicon steel
Jian Zhang, Geqi Li, Yilin Wang, Yao Zhang   +3 more
doaj   +1 more source

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

Pediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz, Se Whee Sammy Park, Aironas Los, Ernest Liu, Nona Struyf, Tom Erkers, Sören Lehmann, Jan J. Molenaar, Jakob Stenman, Olli Kallioniemi, Päivi Östling, Brinton Seashore‐Ludlow, Kasper Karlsson   +12 more
wiley   +1 more source