Results 251 to 260 of about 253,450 (305)

Hemoptysis With Expulsion of Coil Fragments in a Patient With Aorto-Bronchial Fistula of the Thoracic Descending Aorta. [PDF]

Clin Case Rep
Giovannico L, Parigino D, Fischetti G, Mazzone F, Savino L, Leo C, Cristiano G, Milano AD, Bottio T.   +8 more
europepmc   +1 more source

Strong gradients, cool performance: A 64-channel array coil with concurrent field monitoring and thermal control for ex vivo diffusion-weighted brain imaging using the 3T connectome 2.0 MRI scanner. [PDF]

Magn Reson Med
Müller A, Mahmutovic M, Alem M, Ramos-Llordén G, Sung D, Shrestha M, Hansen SJD, Chemlali C, Ghotra A, Stockmann J, Mekkaoui C, Wald LL, Yendiki A, Huang SY, Keil B.   +14 more
europepmc   +1 more source

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Air-core induction-coil magnetometer design

Journal of Physics E: Scientific Instruments, 1982
This paper discusses the theory of optimising an induction-coil magnetometer and the realisation problem. The optimisation is based on a simple magnetic model of the source, an induction coil and a current-to-voltage converter. The electric models and characteristic equations needed for the optimisation procedure have been derived from prevailing ...
K -P Estola, J Malmivuo
openaire   +1 more source

The boost converter with air core coil

Proceedings of the 2014 15th International Scientific Conference on Electric Power Engineering (EPE), 2014
This paper deals about the possibility of using air coils in boost converters, which is useful within the range of frequencies from 200kHz to 1MHz when the transmitted power is in hundreds of kilowatts. The article also analyzes the activity of boost converter - it deals with the demands placed on the converter's coil magnetic circuit and the ...
Ales Havel, Martin Borski, Jiri Spicka, Martin Tvrdon   +3 more
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Transient Simulations of an Air-Coil SFCL

IEEE Transactions on Applied Superconductivity, 2014
Simulations of superconducting fault current limiters (SFCL) devices become more crucial in order to predict their behavior before installing them into power systems. There are different approaches for modeling SFCLs, whereas computational simulations provide a better understanding of the behavior of SFCL devices.
Sousa, W. T. B. de, Näckel, O., Noe, M.
openaire   +2 more sources

Magnetic Force Calculation between Thin Circular Coils and Thin Filamentary Circular Coil in Air

Journal of Electromagnetic Waves and Applications, 2007
This paper presents new and fast procedures for calculating magnetic forces between thin circular coaxial coils in air. The results, obtained analytically, are expressed in terms of the complete elliptical integrals of the first and second kind and Heuman's Lambda function.
C. Akyel, S. I. Babic, S. Kincic, P. J. Lagacé   +3 more
openaire   +1 more source

Coiled Tube Air Heater Test Loop Design

Volume 9: Student Paper Competition, 2017
Coiled tube air heaters (CTAH) are heat exchangers currently under investigation at the University of California, Berkeley for application to Reheat Air-Brayton Combined Cycles (RACC). In a CTAH, molten fluoride salt on the tube side heats air on the shell side in a cross-counterflow arrangement, leading to high heat exchange effectiveness, while the ...
Charalampos Andreades, Andrew Greenop, Shane Gallagher, Jae Keun Choi, Per Peterson   +4 more
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Wireless sensing of open loop micro coils using an air core helical coil

International Multi-Conference on Systems, Sygnals & Devices, 2012
In this paper we report here remote sensing of open loop micro coil parameters using an air core helical coil. Test micro coil is inductive coupled in the near electromagnetic field by placing it inside the air core helical coil and measuring the wirelessly reflected impedance signal.
A. Yousaf, L. Reindl
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Analysis of Water Jacket Furnace Air Coil Blockage

Applied Mechanics and Materials, 2012
Water Jacket Furnace is a kind of indispensable equipment in the process of oil and gas field production, gathering and transportation. It is mainly responsible for the warming and energy supply of gathering and transportation system. After production, the oil of natural gas firstly enters the Water Jacket Furnace for pressure regulation, thermal ...
Yu Chen, Yun Bing He, Tao Wang
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Air Embolism During Coiling Procedure

2019
A 48-year-old male presented with subarachnoid hemorrhage (Fig. 51.1a). He was clinically well preserved. DSA and 3D angiography revealed a dissecting aneurysm of right vertebral artery (Fig. 51.1b, c). Left vertebral artery was also dissected with almost complete occlusion (not shown). The case was planned for stent-assisted coiling.
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