Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Ratu Mataira"'
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-7
A high- T c superconducting (HTS) dynamo enables the injection of large DC currents into a superconducting circuit, without the requirement for current leads. In this work, we attempt to explain the frequency dependence of such dynamos/flux pumps rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b213b1b7b00237d66302fa4a2f628408
https://doi.org/10.1109/tasc.2021.3057842
https://doi.org/10.1109/tasc.2021.3057842
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-5
The charging/discharging delays in superconducting coils wound without insulation (NI coils) are a major drawback of the technique. While removing the insulation improves safety margins, the increase in the characteristic time constant $\tau _c$ can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b10eab67afe03a981e5d74074c09227
https://doi.org/10.1109/tasc.2021.3065284
https://doi.org/10.1109/tasc.2021.3065284
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-8
Fast detection of quench in high-temperature superconductors (HTS) is essential for the application of HTS magnets due to the low normal zone propagation velocity (NZPV). In this work, quench measurement of single-HTS wires has been carried out at 80
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5133962f9f82a7e32869d4630298356
https://doi.org/10.1109/tasc.2020.3036368
https://doi.org/10.1109/tasc.2020.3036368
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-6
High- $T_c$ superconducting (HTS) dynamos are simple devices for injecting and sustaining dc currents in superconducting coils/magnets. The simple geometry of these devices consists of a superconducting stator(s) and one or more rotor magnets arrange
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a3ec1559c882fa26895ba9f6b0412cf
https://doi.org/10.1109/tasc.2020.2979391
https://doi.org/10.1109/tasc.2020.2979391
Publikováno v:
IEEE Transactions on Applied Superconductivity. 30:1-5
In High Temperature Superconducting (HTS) DC magnet applications, the current leads contribute a significant fraction of the cooling load. Higher current operation requires larger current leads and a larger thermal bridge into the cryogenic supercond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a530ac692cc04b476078f5e032a3eb6
https://doi.org/10.1109/tasc.2020.2980830
https://doi.org/10.1109/tasc.2020.2980830
Publikováno v:
IEEE Transactions on Applied Superconductivity. 29:1-6
The energy stored in a 2 MW motor coil, or a generator field winding, may be as high as 25 kJ (for a 5 H field windings with 100 A current) and this energy release would be catastrophic if rapidly released. Therefore quench detection and protection i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d41bee8736075aba82127be79f757f9
https://doi.org/10.1109/tasc.2019.2909539
https://doi.org/10.1109/tasc.2019.2909539
The high-$T_c$ superconducting (HTS) dynamo exploits the nonlinear resistivity of an HTS tape to generate a DC voltage when subjected to a varying magnetic field. This leads to the so-called flux pumping phenomenon and enables the injection of DC cur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac4e3f485b78a9ea709a288533e13d1d
http://arxiv.org/abs/2105.00510
http://arxiv.org/abs/2105.00510
Autor:
Evgueni F. Talantsev, Ratu Mataira
Publikováno v:
Mod. Phys. Lett. B
Modern Physics Letters B
Modern Physics Letters B
Dissipative-free electric current flow is one of the most fascinating and practically important property of superconductors. Theoretical consideration of the charge carriers flow in infinitely long rectangular slab of superconductor in the absence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d900db45a974ba5cb01567e9458e4c69
http://arxiv.org/pdf/2005.13357
http://arxiv.org/pdf/2005.13357
Autor:
Francesco Grilli, Enric Pardo, Fernando Perez-Mendez, Antonio Morandi, Loic Queval, Chris W. Bumby, Ratu Mataira, Mark D. Ainslie, Roberto Brambilla, Asef Ghabeli
Publikováno v:
Superconductor science and technology, 33 (10), Article: 105009
The high-Tc superconducting (HTS) dynamo is a promising device that can inject large DC supercurrents into a closed superconducting circuit. This is particularly attractive to energise HTS coils in NMR/MRI magnets and superconducting rotating machine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b23c7e04aed2d145b07ca412b6614f82
https://www.repository.cam.ac.uk/handle/1810/309879
https://www.repository.cam.ac.uk/handle/1810/309879
Publikováno v:
Physical Review Applied. 14
High-${T}_{c}$ superconducting (HTS) dynamos are experimentally proven devices that can produce large (more than a kiloamp) dc currents in superconducting circuits, without the thermal leak associated with copper current leads. However, these dc curr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f08e7d03ac00cd53f3c8773e04fe03be
https://doi.org/10.1103/physrevapplied.14.024012
https://doi.org/10.1103/physrevapplied.14.024012