Results 1 to 10 of about 46,896 (216)
Nuclear FusionIn this study, high-frequency instabilities driven by runaway electrons in the EXL-50 spherical torus have been reported using a high-frequency magnetic pickup coil.
Mingyuan Wang +10 more
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IEEE Access, 2018 A compact single-layer series-type feeding network is proposed by utilizing two dual-band frequency-independent couplers in this paper. The overall size of the feeding network is further reduced by meandering the transmission lines.
Meijun Qu +4 more
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AIP AdvancesThe plasma dispersion function Z(s) is a fundamental complex special integral function widely used in the field of plasma physics. The simplest and most rapid, yet accurate, approach to calculating it is through rational or equivalent multi-pole ...
Huasheng Xie
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IEEE Access, 2019 In this paper, a compact dual-polarized ultra-wideband dipole antenna is realized by exciting three resonant modes using double-loop (DL) dipoles with stepped exponential-shaped (ES) arms.
Yaohui Zhang +4 more
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Compact Balanced Substrate Integrated Waveguide Filter With Low Insertion Loss
IEEE Access, 2019 A balanced substrate integrated waveguide (SIW) filter is proposed by etching transverse slots on the top surface. The SIW structures between each two adjacent slots are resonators operating at TE20δ mode for differential-mode (DM) operation and ...
Zhidan Shen +4 more
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Study on Miniaturization and Lightweight Method of Electric Thruster Power and Gas Supply Device for Micro Satellite [PDF]
한국정밀공학회지Recent advancements in science and technology have enabled even microsatellites to perform various high-level tasks. As the range of missions that satellites undertake expands, even microsatellites now require thrust systems for orbit adjustment and ...
Jin Young Park
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Filomat, 2020 We introduce a new covering property, defined in terms of order types of sequences of open sets, rather than in terms of cardinalities. The most general form depends on two ordinal parameters. Ordinal compactness turns out to be a much more varied notion than cardinal compactness.
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A Novel Dual-Band Printed Monopole Antenna With Modified SIR Loading
IEEE AccessIn this paper, a novel dual-band compact printed monopole antenna is presented. The antenna is composed of three spatially distributed layers: a modified folded-line stepped impedance resonator (SIR) on the upper layer, a printed monopole antenna on the ...
Honglin Zhang +4 more
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Compact and weakly compact multiplications on C^∗-algebras
Annales Academiae Scientiarum Fennicae Series A I Mathematica, 1989 As proved by \textit{K. Vala} in [Ann. Acad. Sci. Fenn. Ser. A I 351, 9 p. (1964; Zbl 0132.098)], the linear operator \(X\mapsto SXT\), with \(S, T, X\) bounded operators on some Hilbert space \(H\), is compact on \(B(H)\) if and only if both S and T are compact operators (provided \(S\neq 0\) and \(T\neq 0)\).
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Zeitschrift für RechtsextremismusforschungIn jüngster Zeit beziehen sich Querfrontkonzepte weniger nur auf organisationsbezogene Überlegungen, sondern werden als Teil einer rechtspopulistischen Mobilisierungsstrategie der ‚hart arbeitenden normalen Leute‘ gegen die ‚korrupten internationalen ...
Martin G. Maier
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