Results 61 to 70 of about 4,160 (293)

SPG4 and Dementia: Expanding the Clinical Spectrum

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Hereditary spastic paraplegia (HSP) is a group of disorders characterized by progressive spasticity and lower limb weakness, with mutations in SPG4/SPAST being the most common cause. Detailed studies and clinical and molecular comparisons across different populations are missing.
Emanuele Panza, Arun Meyyazhagan, Eliseo Picchi, Gustavo Ribas, Ingrid Faber, Ryosuke Miyamoto, Preethi Basavaraju, Paolo Eusebi, Haripriya Kuchi Bhotla, Mario Stasi, Fabrizio Gaudiello, Francesco Patti, Filippo Maria Santorelli, Marcondes Cavalcante França Jr, José Luiz Pedroso, Orlando Graziani Povoas Barsottini, Hélio Afonso Ghizoni Teive, Peter Henry St George‐Hyslop, Toshitaka Kawarai, Antonio Orlacchio   +19 more
wiley   +1 more source

Calculation of the electrodynamic forces causing deformation of the power transformer’s windings [PDF]

E3S Web of Conferences, 2019
This paper describes modified method to calculate electrodynamic forces causing deformation of the power transformer’s windings. This method takes into account the deformed shape of the winding. The new equations allow to get better accuracy.
Khrennikov A Yu, Aleksandrov N.M.
doaj   +1 more source

Investigation of Stator Windings Looseness of Polyphase Induction Machine after Rewinded in Workshop: Numerical and Experimental Analysis

Majlesi Journal of Electrical Engineering, 2022
Electric machines, particularly induction motors, are widely used in industry as they are robust in construction and require less maintenance. These machines are continuously operated under high loading conditions, which may result in machine vibrations.
V Sri Ram Prasad Kapu, Varsha Singh
doaj   +1 more source

Study of transformer winding deformation by frequency response analysis

, 2013
This paper proposes a methodology to interpret frequency response measurements of a deformed transformer winding due to conductors tilt. To achieve that, geometrical parameters of a three phase prototype transformer is used to simulate the frequency ...
Yousof, M. F. M., Ekanayake, Chandima, Ekanayake, C., Saha, T. K., Saha, Tapan, M. F. M. Yousof, T. K. Saha, C. Ekanayake   +7 more
core   +1 more source

Spatial and Volumetric Characteristics of Glioblastoma: Associations With Clinical Presentation and Survival

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aim to comprehensively analyze how regional tumor and edema characteristics are associated with clinical presentations and survival outcomes in a large cohort of glioblastoma patients. Methods Patients with IDH‐wildtype glioblastoma who received brain MRI from 2010 to 2023 were included.
Daniel J. Zhou, Marc Jaskir, Julian Gal, Yombe Fonkeu, Christos Davatzikos, MacLean P. Nasrallah, Jose Garcia, Rubo Xing, Stephen J. Bagley, Arati Desai, Richard E. Phillips, Steven Tobochnik, Colin A. Ellis, James J. Gugger, Nishant Sinha, Joel M. Stein, Kathryn A. Davis   +16 more
wiley   +1 more source

Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISC

International Journal of Rotating Machinery, 2021
This paper comparatively studies on the end winding electromagnetic force and mechanical response for generators with different numbers of poles. The analytical expression of the end winding electromagnetic force is derived under the rotor winding ...
Hong-Chun Jiang, Yu-Ling He, Gui-Ji Tang
doaj   +1 more source

White Matter Microstructural Abnormalities in Neonatal Onset Genetic Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Recent evidence indicates that epilepsy is associated with abnormal white matter. If seizures alter white matter, then the impact upon network function, epileptogenesis, and cognition could be pronounced in neonates undergoing rapid developmental myelination. Neonates with epilepsy due to nonstructural genetic causes provide a unique
Amanda G. Sandoval Karamian, Tianjia Zhu, Hao Huang, Shavonne L. Massey, Mark P. Fitzgerald, Darshana Parikh, Arastoo Vossough, Ingo Helbig, Nicholas S. Abend   +8 more
wiley   +1 more source

Research on Deformation Fault Diagnosis of Transformer Windings Based on a Highly Sensitive Multimodal Feature System

Energies
The current mainstream methods for online detection of transformers all have shortcomings such as low sensitivity and susceptibility to interference from the testing environment.
Guochao Qian, Xiao Li, Dexu Zou, Haoruo Sun, Weiju Dai, Shan Wang, Chunxiao He, Zetong Wang, Yuhan Zou, Junhao Ma, Shoulong Dong   +10 more
doaj   +1 more source

Fault diagnosis of transformer winding short circuit based on WKPCA-WM and IPOA-CNN

Frontiers in Energy Research, 2023
When the winding of the power transformer is short-circuited, the winding will experience constant vibration, which will cause axial instability of the winding, and then lead to winding looseness, deformation, bulge, etc., therefore, a diagnosis method ...
Xiping Pei, Songtao Han, Yanyan Bao, Wei Chen, Hengjie Li   +4 more
doaj   +1 more source

SFRA, Detect of Winding Deformation in Power Transformer

International Journal of Innovative Technology and Exploring Engineering, 2020
The sweep frequency response analysis is extensively used technique for detect hidden fault and condition monitoring of power transformer. The operation is administered by supply a coffee voltage signal of varying frequencies to the transformer windings and measuring both the input and output signals.
Dr. B. Gopinath*, Mr. C. Shankar*, C. Jaya Meenakshi*, P. Meena*, K. Sudha*   +4 more
openaire   +1 more source