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AbstractAbstract
[en] The present manuscript represents the third part of a series of studies about a continuous micromagnetic model for amorphous microwires with non-uniform magnetic structure (Torrejon et al., J. Magn. Magn. Mater. 323 (2011) 283; Torrejon et al., J. Magn. Magn. Mater. 333 (2013) 144). Here we compare the predictions of this model with experiments, and show the validity of this approach when a uniform magnetic structure in the microwire cannot be considered. The analyzed microwires exhibit ultrasoft magnetic behaviour and negative magnetostriction, with a non-uniform magnetic structure composed of an axially magnetized inner core exchange-coupled with a circumferentially magnetized outer shell. The static properties were obtained by magnetometry. The high frequency response, axial permeability, was measured from a conventional single coil permeameter connected to a network analyzer. The microwave response is strongly affected by skin effect, which therefore needs to be taken into account for comparison with theory. The validity of the continuous model is proved through the experimental dependence of the permeability on axial static field. Finally, the efficient dynamic magnetization is evaluated from the imaginary component of permeability. - Highlights: • We model magnetic properties of microwires with circumferential anisotropy. • Skin effect correction has to be considered for small microwires. • Validity of model is proved by permeability dependence on axial static field. • Wires with small volume of the core can be well described by macrospin approach. • The exchange-coupled continuous core-shell model is compared to experiments
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S0304-8853(14)00079-1; Available from http://dx.doi.org/10.1016/j.jmmm.2014.01.068; Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Meehan, B. Timothy
National Security Technologies, LLC. (NSTec), Mercury, NV (United States). Funding organisation: USDOE National Nuclear Security Administration (NNSA) (United States)2017
National Security Technologies, LLC. (NSTec), Mercury, NV (United States). Funding organisation: USDOE National Nuclear Security Administration (NNSA) (United States)2017
AbstractAbstract
[en] Two arc flashover events occurred at the DPF Area 11 facility. These flashover events happened in the same location on the bank current delivery plates. The damage from one of these events can be seen on the left-hand side of Figure 1. Since the flashovers occurred in the same area of the bank, and the reliability of the bank is important for future DPF experiments, a failure analysis effort was initiated. Part of this failure analysis effort was an effort to understand the physical reasons behind why the flashover happened, and why it happened in the same place twice. This paper summarizes an effort to simulate the current flow in the bank in order to understand the reasons for the flashover.
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27 Jul 2017; 11 p; OSTIID--1374063; AC52-06NA25946
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Ghatak, Ananya; Das, Tanmoy, E-mail: gananya04@gmail.com, E-mail: tnmydas@gmail.com2019
AbstractAbstract
[en] Both theoretical and experimental studies of topological phases in non-Hermitian systems have made a remarkable progress in the last few years of research. In this article, we review the key concepts pertaining to topological phases in non-Hermitian Hamiltonians with relevant examples and realistic model setups. Discussions are devoted to both the adaptations of topological invariants from Hermitian to non-Hermitian systems, as well as origins of new topological invariants in the latter setup. Unique properties such as exceptional points and complex energy landscapes lead to new topological invariants including winding number/vorticity defined solely in the complex energy plane, and half-integer winding/Chern numbers. New forms of Kramers degeneracy appear here rendering distinct topological invariants. Modifications of adiabatic theory, time-evolution operator, biorthogonal bulk-boundary correspondence lead to unique features such as topological displacement of particles, ‘skin-effect’, and edge-selective attenuated and amplified topological polarizations without chiral symmetry. Extension and realization of topological ideas in photonic systems are mentioned. We conclude with discussions on relevant future directions, and highlight potential applications of some of these unique topological features of the non-Hermitian Hamiltonians. (topical review)
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Available from http://dx.doi.org/10.1088/1361-648X/ab11b3; Country of input: International Atomic Energy Agency (IAEA)
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AbstractAbstract
No abstract available
Original Title
Terapia genowa z zastosowaniu proangiogennych plazmidow dla poprawy ukrwienia doswiadczalnych platow TRAM
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6. Congress: Diagnostics and breast cancer therapy; Warsaw-Falenty (Poland); 23-25 Apr 2009
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Nowotwory; ISSN 0029-540X;
; v. 59(suppl.1); p. 54

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AbstractAbstract
[en] In the paper the analytic solution with skin-effect value determination for near-filter zone at in-situ well uranium leaching is offered
Original Title
K opredeleniyu bezrazmernoj velichiny skin-ehffekta v prifil'trovoj zone pri skvazhinnom vyshchelachivanii urana
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1 ref., 1 fig.
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Vestnik Ministerstva Nauki i Vysshego Obrazovaniya i Natsional'noj Akademii Nauk Respubliki Kazakhstan; ISSN 1563-2423;
; v. 6(3); p. 41-46

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AbstractAbstract
[en] We have shown that, due to the ac resistive wall wakefield, the present LCLS undulator design, with its round copper beam pipe, will result in an unacceptably large energy variation induced within the bunch over the length of the undulator (0.6%). If, instead, we use a flat, aluminum chamber, the energy variation can be reduced to within acceptable limits (less-than-or-similar-to 0.2%). Finally we have shown that the effect of the anomalous skin effect in the beam pipe wall is small, and can be ignored
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20 Sep 2004; [vp.]; AC--03-76SF00515; Available from PURL: https://www.osti.gov/servlets/purl/833045-eZvzGG/native/
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AbstractAbstract
[en] A derivation of the change in electrical impedance of an NMR surface coil produced by inductive coupling with a conducting medium is presented. The effect of skin depth is treated explicitly. Theoretical predictions of coil sample resistance and frequency offset are compared with those observed experimentally in a variety of circular surface coils and sample conductivities. (author)
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[en] This paper presents Sweet-Parker type scaling arguments in the context of hyper-resistive Hall magnetohydrodynamics. Numerical experiments suggest that both cusplike and modestly more extended geometries are realizable. However, the length of the electron dissipation region, which is taken as a parameter by several recent studies, is found to depend explicitly on the level of hyper-resistivity. Furthermore, although hyper-resistivity can produce more extended electron dissipation regions, the length of the region remains smaller than one ion skin depth for the largest values of hyper-resistivity considered here, significantly shorter than current sheets seen in many recent kinetic studies. The length of the electron dissipation region is found to depend on electron inertia as well, scaling like (me/mi)3/8. However, the thickness of the region appears to scale similarly, so that the aspect ratio is at most very weakly dependent on (me/mi).
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(c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
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Moreno Garcia, E.; Mujica Ascencio, S.; Rosa Vazquez, J. M.de la; Stolik Isakina, S., E-mail: emoreo@esfm.ipn.mx, E-mail: jos_delarosa@yahoo.com.mx2012
AbstractAbstract
[en] In this paper we describe a gel-free sensor with on-board electrode design, which capacitive couples to the skin to detect the electrical activity in the body. The integrated sensor is manufactured on a standard printed circuit board within 2.2 cm diameter enclosure that can operate through fabric or other insulation. The electrode includes amplification (60db gain) and passive band pass filtering (0.5 to 100 Hz). Active shielding surrounding the sensor plate is used to reduce noise pickup. The input referred noise, measured over the electrode bandwidth is 4 μV rms at 0.2 mm sensor distance, and 16 μV rms at 1.2 mm distance trough two cotton cloths. The bioelectrodes were coupled to the scalp trough hair for EEG signals (with 80 db gain), and coupled to the chest through clothing for ECG signals. The recorded signals show well performance of the designed bielectrode. (Author)
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Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), La Habana (Cuba); Instituto de Ciencias y Tecnologia de Materiales (IMRE), La Habana (Cuba); Centro Latioamericano de Fisica (CLAF), La Habana (Cuba); Sociedad Cubana de Fisica (SCF), La Habana (Cuba); Centro de Investigaciones en Optica (CIO), La Habana (Cuba); 1 CD-ROM; ISBN 978-959-7136-91-0;
; Jun 2012; 7 p; 7. International Workshop TECNOLASER 2012; VII Taller Internacional TECNOLASER 2012. III Reunion Internacional Optica, Vida y Patrimonio; La Habana (Cuba); 10-13 Apr 2012; 3. International Meeting Optics, Life and Heritage; VII Taller Internacional TECNOLASER 2012. III Reunion Internacional Optica, Vida y Patrimonio; La Habana (Cuba); 10-13 Apr 2012; Available from Centro de Aplicaciones Tecnologica y Desarrollo Nuclear (CEADEN), La Habana (CU). Email. marta@ceaden.edu.cu; Centro de Gestion de la Informacion y Desarrollo de la Energia (Cubaenergia), La Habana (CU) ,Email. belkis@cubaenergia.cu; 9 refs.; 6 figs.

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MR-induzierte Verbrennungsreaktion bei einer Patientin mit ''Permanent Make-up''
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RoeFo - Fortschritte auf dem Gebiete der Roentgenstrahlen und der bildgebenden Verfahren; ISSN 1438-9029;
; CODEN RFGNDO; v. 178(7); p. 728-730

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