Results 31 to 40 of about 66,879 (258)

Resistance in Superconductors [PDF]

open access: yes, 2010
In this pedagogical review, we discuss how electrical resistance can arise in superconductors. Starting with the idea of the superconducting order parameter as a condensate wave function, we introduce vortices as topological excitations with quantized ...
Abrikosov A. A.   +20 more
core   +2 more sources

Treatment of Posttubercular Syringomyelia Not Responsive to Antitubercular Therapy: Case Report and Review of Literature

open access: yesJournal of Neurological Surgery Reports, 2017
Posttubercular adhesive arachnoiditis is a rare, late complication of tubercular meningitis. Syringomyelia can develop as a consequence of intramedullary cystic lesions and cerebrospinal fluid (CSF) flow disturbance around the spinal cord, even after ...
Giuseppe Canova   +3 more
doaj   +1 more source

Optociliary Shunt Vessel: An Ancillary Ophthalmic Sign Harbingering Optic Nerve Sheath Meningioma

open access: yesNepal Journal of Neuroscience, 2019
A 61-year-old male presented with gradual loss of vision in his right eye for one year at neuro ophthalmology clinic. On clinical examination, his visual acuity was perception of light and intraocular pressure was 12 mm of Hg in right eye.
Bikram Bahadur Thapa   +3 more
doaj   +1 more source

Assessment of superior cavo-pulmonary anastomoses (Glenn shunt) by cardiac magnetic resonance imaging in comparison with multi-slice computed tomography

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2021
Background Multi-slice computed tomography (MSCT) angiography is the gold standard imaging modality to evaluate the patency of Glenn shunt and the presence of veno–veno collaterals.
Marwa Ali Gamal El-Deen   +4 more
doaj   +1 more source

Dolichoectasia of basilar artery presenting as non-communicating hydrocephalus-A rare presentation

open access: yesInterdisciplinary Neurosurgery, 2021
Background: Vertebrobasilar dolichoectasia is characterised by vascular elongation, tortuosity and widening of the vertebral or basilar arteries, with highly varied presentations.
Neena Baby   +3 more
doaj   +1 more source

Design of high gradient, high repetition rate damped C-band rf structures [PDF]

open access: yes, 2017
The gamma beam system of the European Extreme Light Infrastructure–Nuclear Physics project foresees the use of a multibunch train colliding with a high intensity recirculated laser pulse. The linac energy booster is composed of 12 traveling wave C-band
Alesini, David   +13 more
core   +2 more sources

Structural Elements Energy Losses of Electrical Equipment due to a Violation of Symmetry of Power Transmission Mode Parameters

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика
The asymmetry of power transmission mode parameters due to the induction current effect on structural elements of electrical equipment is investigated. Three-phase AC current produces a rotating magnetic field that affects the power transmission system ...
N. L. Novikov   +2 more
doaj   +1 more source

Common features of vortex structure in long exponentially shaped Josephson junctions and Josephson junctions with inhomogeneities

open access: yes, 2006
We study vortex structure in three different models of long Josephson junctions: exponentially shaped Josephson junction and Josephson junctions with resistor and shunt inhomogeneities in barrier layer.
Barone   +10 more
core   +1 more source

Determining the Positions and Dimensions of Horizontal Magnetic Shunts in Transformer Tank Walls Using Parametric Analyses Based on the Finite Element Method

open access: yesApplied Sciences
Magnetic shunts efficiently mitigate losses caused by leakage currents in the tank walls of power transformers. Transformer manufacturers frequently utilize vertical magnetic shunts positioned on the inside surfaces of the transformer tank walls.
Mehmet Çeçen   +2 more
doaj   +1 more source

Impedance analysis of new PS internal dump design [PDF]

open access: yes, 2018
The High Luminosity Large Hadron Collider (HL-LHC) project at CERN calls for increasing beam intensity in the injector chain. In the Proton Synchrotron (PS), a pre-injector of the LHC, these intensities can result in beam instabilities and potential RF ...
Popovic, Branko   +2 more
core   +1 more source

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